React jobs in London - Page 6Create job alerts

Senior Java Developer | Travel-tech Senior Java Developer | £300-400/day | Outside IR35 | Fully Remote within Europe A fast-growing travel-tech organisation is embarking on a major product evolution and is looking for an experienced Senior Java Developer to join their team. This is a key engineering role working on high-traffic, consumer-facing systems used across Europe. What You’ll Work On • Lead the evolution of a large-scale Java, Springboot, and MySQL, ensuring it can support a new universal architecture across multiple products., • Design and implement new backend features, Unit Testing, API testing, and system improvements to support both web and mobile clients., • Contribute to shared architecture, functional models, and backend design patterns to unify services across the organisation. Required Skills & Experience • Senior-level expertise building and maintaining commercial, production-scale applications., • Deep proficiency in:, • Java, • Springboot (server-side development, API design), • MySQL (performance optimisation, complex queries, relational modelling), • Experience architecting and maintaining distributed backend systems., • Strong understanding of integration patterns, API design, and scalable service architecture. Nice To Have • Node.js, PHP, MongoDB, Kafka, React (for back office apps) Contract Details • 6-month contract — extension highly likely due to roadmap depth, • Outside IR35, • Fully remote within Europe Apply now by sending your CV to or by replying directly to this advert. Senior Java Developer | Travel-tech Senior Java Developer | £300-400/day | Outside IR35 | Fully Remote within Europe

Full Stack Developer - Java/React - London - Hybrid - Commodities Trading We’re seeking a Full Stack Software Engineer to join our Risk Technology team in London. This hybrid role offers the chance to work at the intersection of advanced engineering and global commodities trading. You should have strong experience in API-first development, advanced Java skills, and solid proficiency in JavaScript/TypeScript with React. Exposure to Value-at-Risk models or commodities is a plus but not essential. Most important is your ability to learn quickly, solve complex challenges, and communicate effectively across teams. In this role, you’ll design and deliver new functionality for market-risk systems, optimize existing components, build user-friendly web interfaces, and contribute to automation and support across the Risk technology stack. Core Skills: • Advanced Java programming, • JavaScript/TypeScript with React, • Legacy codebase experience, • Linux & shell scripting, • SQL & RDBMS (PostgreSQL, Oracle), • Strong problem-solving and communication skillsDesired Skills:, • Exposure to Risk or commodities, • Python, • DevExpress DevExtreme, • Google Protobuf & gRPCIf this role could be of interest to you, please reply with an updated version of your CV.

Software Engineer – React (Web & Mobile) | 6-Month Contract Rolling Retail Energy Sector IR35: Inside IR35 Overview We’re seeking a number of Software Engineer's with extensive experience in React to join a fast-moving Web/Mobile Squad within the retail division of a major UK energy provider. Contract Details • Length: 6 months (initial), with strong likelihood of renewal, • Location: UK-based, remote-first with occasional meetups, • IR35: Inside IR35 What You’ll Be Doing As part of a cross-functional squad, you’ll contribute to the development and optimisation of key customer-facing digital touchpoints. From enhancing web UI performance to refining mobile user journeys, you’ll play a central role in improving how customers engage with their energy products and services. What We’re Looking For • Strong experience with React (v16+) and building complex, scalable UIs, • Solid understanding of custom hooks, functional components, and modern state management patterns, • Background in developing customer-facing web or mobile applications, • A proactive mindset around code quality, testing, and collaboration, • Experience with mobile development (React Native or native iOS/Android), • Exposure to customer experience and journey optimisation in high-traffic environments Squad Environment You'll work in an agile, collaborative team alongside frontend and backend engineers, product owners, and designers - all focused on delivering intuitive, high-quality experiences for customers. If this sounds like the right fit, apply now for immediate consideration!

About the Company: A global technology firm operating in the regulatory technology space, building mission-critical products for financial institutions. The company specialises in computational law and automated decisioning systems, helping clients navigate complex regulatory environments with precision and efficiency. Their culture values intellectual curiosity, creativity, collaboration, and personal development. About the Role: The organisation is expanding its product offering and is seeking a Fullstack Product Engineer to design, build, and own client-facing web applications. Reporting to senior engineering leadership, the role collaborates closely with Product and UX teams to deliver high-quality, user-centric digital experiences. The position focuses on developing high-performance applications that support real-time regulatory services used by sophisticated financial firms. This role suits someone passionate about creating elegant, functional products and who enjoys working across the full product lifecycle—from ideation to deployment. Key Responsibilities • Understand client objectives and develop strategies to meet them, incorporating client feedback into product development., • Own end-to-end delivery: break down complex problems into iterative, shippable components., • Collaborate with Product and User Experience teams on roadmaps and rapid iteration cycles., • Lead technical architecture and solution design., • Develop a deep understanding of the company’s product suite and provide technical expertise plus production support to clients., • Manage delivery of on-premises and cloud-based deployments, upgrades, and enhancements., • Mentor engineers and contribute to a high-performance engineering culture. What We’re Looking For • Experience in building web applications using User-Centered Design principles., • Strong system design skills, particularly architecting scalable end-to-end solutions., • Ability to propose and articulate multiple solutions, weighing technical and business trade-offs., • Track record of owning long-term projects from concept to delivery., • High curiosity, strong problem-solving skills, and comfort asking thoughtful questions., • Experience collaborating directly with clients or end-users., • A collaborative mindset with a passion for knowledge sharing., • Openness to giving and receiving feedback in a constructive environment. Desired Technical Skills • Backend: Proficiency in Java and/or Node.js with TypeScript., • Frontend: Strong experience with React and TypeScript., • Infrastructure: Familiarity with cloud environments (e.g., AWS, Azure)., • Databases: Experience with relational databases (Postgres, Oracle, etc.)., • APIs: Experience designing and building RESTful APIs., • Bonus: Experience with functional programming languages (Clojure, Haskell). What the Company Offers • Competitive compensation, including equity, bonus eligibility, and retirement benefits., • Comprehensive health and wellbeing support for employees and their families., • Strong emphasis on professional learning, continuous feedback, and career growth., • A collaborative global working environment., • Flexible hybrid working model. Additional Notes The organisation is committed to building a diverse and inclusive workforce. Candidates from all backgrounds are encouraged to apply.

Full Stack Software Engineer Ocean Intelligence Platform Location: Hybrid (UK-based) | Remote-friendly Travel: Occasional trips to London for team sessions (monthly or at least quarterly) Type: Full-time | Tech leadership track Compensation: Circa £60,000 + ~1% equity options Please note this role is not live right now but is going live shortly, I thought this period would be a good time to catch people and maybe even have an initial chat. The Opportunity This is a chance to help build the digital brain of the ocean. You’ll be working on a next-generation ocean intelligence platform that turns raw environmental sensor data into insights trusted by ports, insurers, ocean developers, and compliance teams. From data streaming off autonomous marine systems to decision-ready dashboards, you’ll own critical parts of a platform that connects hardware, data science, and real-world action. If you’re excited by systems that span edge devices → cloud → beautiful UX, and want your work to have tangible environmental impact, this role is for you. What You’ll Do You’ll help design, build, and scale a production-grade platform, including: • Building scalable backend services to ingest and store real-time ocean sensor data (salinity, temperature, pressure, light, acidity, CO₂, dissolved oxygen, nitrates, and more), • Developing intuitive, map-based dashboards that visualise live and historical environmental data, • Creating user management, APIs, alerting systems (SMS/email/push), and reporting tools, • Collaborating with field engineers to validate sensor payloads, calibration, and data ingestion, • Helping design the end-to-end data pipeline - from edge devices to cloud infrastructure, • Working closely with leadership, marine operations, AI/ML, and commercial teams to shape the product roadmap, • Laying the groundwork for AI-ready data, satellite integrations, predictive analytics, and ESG-grade reporting You’ll Thrive If You Have • 3–5+ years’ experience as a full-stack engineer, ideally in climate, IoT, hardware-adjacent, or deep-tech environments, • Strong proficiency in Node.js and/or Python, PostgreSQL / time-series databases, and modern front-end frameworks (React / Next.js), • Experience building real-time data systems, APIs, and production dashboards, • Familiarity with cloud platforms (AWS, Azure, or GCP), especially systems interacting with edge devices, • Comfort working with sensor, geospatial, or scientific data (or a strong desire to learn), • A product mindset - you care about UX, performance, clarity, and making complex data usable for non-technical users Nice to Have (But Not Required) • Experience with environmental or marine datasets, ESG tools, or compliance platforms, • Exposure to spatial visualisation (Mapbox, Leaflet), satellite imagery, or digital twins, • Experience with time-series databases and visualisation tools (Grafana, Plotly, etc.), • Previous experience in an early-stage startup or building alongside hardware teams Why Join • Work at the intersection of climate tech, deep tech, and ocean systems, • Build software that directly supports coastal resilience, marine ecosystems, and the blue economy, • Join a fast-moving, mission-driven team spanning AI, robotics, and climate science, • Real ownership: equity upside and the chance to shape the platform architecture from the ground up, • A clear path toward technical leadership as the platform and team scale If you’re motivated by meaningful problems, elegant systems, and real-world impact and want to help define how ocean data is used globally, I’d love to hear from you. (those sending me a direct e-mail or outlining their passion for ClimateTech/ OceanTech will be first in line as this role is all about finding someone passionate about helping the planet)

At Wave Talent, we don't want to consume any more of your time trying to decipher job descriptions to identify the information you need. Instead, we spoke with you all to understand the key information you'd like to know about a job position before you enter the process. Hopefully, you'll find this listed below and if the job role sounds like it could be up your street; we'd love to arrange a chat to give you more info. We’ve partnered with a fast-moving, AI-native SaaS startup that’s building a category-defining platform for technical teams. They’ve recently rebuilt their product from the ground up, secured seed funding from a leading European VC, and are now rolling out to their first enterprise users, where real usage is shaping the roadmap. The business is ready to bring in a VP of Engineering to lead delivery, scale the team, and set a new bar for engineering excellence. Here’s everything you need to know: 💰 Salary and equity: £160,000 – £180,000 + 2-3% equity 🚀 Industry / Type of business: AI-native SaaS platform focused on multi-agent systems, specification tooling, and dev-productivity innovation. 🏠 Work location: Hybrid - 2 days per week in their Central London office. 🧩 Interview process: Screening & AI-native workflow deep-dive → Technical workshop (live coding + system design) → Product/vision alignment → Team fit & references. 🦄 Reporting to: Founder/CEO (former CTO) 👏 Company size: Early-stage team of engineers (3), growing rapidly over the next 12-18 months. 🎯 Working on: Leading engineering delivery while remaining 50-60% hands-on initially; shaping architecture, velocity, and culture; driving the evolution of an AI-enabled development platform used by PMs and engineers to collaborate in a world of automated workflows. We’d love to chat with you about this position if: ✅ You’ve scaled engineering teams in early-stage startup environments (Seed → Series A/B). ✅ You’ve recently been hands-on, with strong full-stack capability across React, TypeScript, Python, SQL, and experience shipping AI-native systems (multi-agent workflows, LLM tooling, evals, etc.). ✅ You know how to set technical standards while leading through influence, not micromanagement. ✅ You have real AI-native development habits (Claude, Copilot, agent-driven workflows) and can model high-velocity coding practices. ✅ You communicate clearly, operate autonomously, and thrive in ambiguity. ✅ You’re comfortable with a hybrid environment and flexible hours, including occasional evening collaboration sessions. Based on the client's criteria, any of the following would make you a top applicant for this role: ⭐ Experience leading engineering at a high-growth startup from Pre-seed to Series A/B ⭐ Strong background in AI-native or dev-productivity platforms ⭐ Exposure to multi-agent architectures, async job systems, or on-prem enterprise deployments ⭐ A relevant STEM degree (CS/Maths/Engineering/Physics) ⭐ Experience defining engineering culture in an early team, especially where clarity, pace, and product intuition matter Due to a high number of applicants across our platforms, and the criteria specifically outlined by our client, only candidates who have recent experience in a leadership role within a start-up environment (10-50 employees, Pre-seed to Series-B) can be considered. Unfortunately, sponsorship is not available for this role.

Job Title: Senior React Developer Client: Elite FinTech Firm Salary: Up to 180k Base + Exceptional Bonus Location: London (Hybrid Working) Sells: Cutting-edge tech, a collaborative and flat-structured environment, beautiful office spaces My client is looking for talented React Developers to join their high-performance team! You will be pivotal in building slick and complex enterprise-grade applications that are crucial in supporting trading activities around the world! As a part of this team, you will play an integral role in building greenfield front end applications. This opportunity offers a unique chance to join a dynamic group of technologists in a technically stimulating environment! Role Responsibilities (Full Spec. Available): • Design and implement dynamic, interactive, and responsive user interfaces, ensuring a seamless and intuitive experience for end-users., • Building out brand new products and applications from the ground up, • Build out state of the art, data intensive applications and tools., • Work closely with product managers, UX/UI designers, and other stakeholders to turn business requirements into fully functional features that meet user needs., • Write clean, efficient, and reusable code that is scalable, robust and maintainable. Successful Candidates: • Bachelor's or Master's Degree in Computer Science or related field, • Strong experience as a React Developer, • Experience in commodities trading is a bonus, • Strong written and verbal communication skills, enabling effective collaboration and information sharing in a fast-paced environment., • Demonstrated enthusiasm for ongoing learning and a proactive attitude towards adopting new technologies. If the above is of interest apply or reach to myself at for more information!

Senior Full Stack (Front End) Engineer | Build the Future of On-Screen Discovery | 2 Days LDN | £100K - £110K + Equity Build the future of how people watch, discover and shop... Imagine a world where the moments that inspire you on screen don’t stop at the credits. We’re building technology that bridges entertainment, culture, and commerce—helping people instantly discover and shop what they see in their favourite shows and movies. I am working with an exciting company who are using cutting-edge computer vision and seamless native checkout, their platform identifies on-screen items and surfaces comparable options at multiple price points. The result? A frictionless way for viewers to connect with the culture they love and a powerful new channel for media and commerce. They design and ship premium products across the entire journey: from developer-first APIs integrated with some of the largest media platforms in the world, to beautifully crafted consumer experiences used by millions of viewers. Backed by top-tier investors and media partners, they are an early-stage team with big ambition and they are just getting started! The Role: Senior Full Stack (Front End) Engineer I'm looking for a standout engineer to join their core team in a high-ownership, high-impact role. You’ll help shape both the architecture and the product, building elegant, high-performance user experiences while contributing to the backend systems that power them. This is not a narrow role. You’ll influence UX decisions, build developer-friendly SDKs and ensure they interfaces, APIs, and pipelines work together seamlessly. If you thrive in early-stage environments where your work ships fast and matters immediately, this role is for you. What you will do... • Build and maintain polished, scalable frontend interfaces and full-stack features, • Own features end-to-end—from concept and technical design through launch, • Create intuitive SDKs, UI components, and integration tools for external developers, • Collaborate closely with designers, founders, customers, and fellow engineers, • Contribute to backend services and APIs (Node.js or similar), • Design clean, well-documented API contracts that make integration effortless, • Champion performance, accessibility, and maintainability across the stack, • Wear many hats and help define how the engineering team operates as we grow What they are looking for... • 3+ years of professional software engineering experience, ideally full-stack, • Strong skills in JavaScript/TypeScript, HTML, and CSS, • Solid experience with modern frontend frameworks (React preferred), • Backend experience with Node.js, Express, or similar frameworks, • Experience building SDKs, component libraries, or developer-focused tools, • Familiarity with data-heavy applications and sound system design, • Experience with state management libraries and frontend testing frameworks, • Comfort with modern build tools and cloud deployments (AWS, GCP, or Azure), • Strong product instincts, design sensibility, and attention to detail Nice to haves... • Passion for entertainment, media, or e-commerce, • Experience with LLMs or prompt-driven interfaces, • Interest in mentoring and shaping an early engineering team, • Experience with animations, Web Components, or rendering optimizations Why Join? You’ll work alongside a driven, talented team, learn fast, and help redefine how people experience media and shopping—backed by strong partnerships and serious momentum. If you’re excited by ownership, creativity, and building something genuinely new, we’d love to hear from you. No sponsorship - sorry! If this Senior Full Stack (Front End) Engineer | Build the Future of On-Screen Discovery | 2 Days LDN | £100K - £110K + Equity is of interest to you - please send over your CV and I will be in touch if I think you are a good fit!

Head of Web (Senior Software Engineer) A rapidly scaling health-tech organisation (Series A funded) is seeking an exceptional Head of Web to lead the architecture, development, and future direction of its core web platform. If you’re a deeply experienced React + TypeScript engineer who wants to build technology that directly shapes how clinicians make decisions at the point of care - this role will excite you. The Opportunity You will own the entire web ecosystem - setting engineering best practice, leading platform direction, and working alongside a team of clinician-engineers building the next generation of AI-powered clinical knowledge tools. This isn’t a large corporate environment. You’ll have full autonomy, influence, and the ability to make engineering decisions that impact healthcare professionals globally. What You’ll Do • Own web architecture, development, and deployment, • Lead development using React + TypeScript, • Improve reliability, performance, scalability, and maintainability, • Drive technical roadmap and best practices (testing, CI/CD, security), • Collaborate closely across mobile, backend, and product teams, • Mentor engineers and help shape a world-class engineering culture What You’ll Bring • 5+ years’ professional software engineering experience, • Deep expertise with React + TypeScript, • Proven ownership of complex production web applications, • Strong architectural and design understanding, • Excellent problem-solving and code quality standards Desirable: AWS, GraphQL, Tailwind, healthcare/regulated environments, security standards (HIPAA/GDPR/NHS DTAC). Why This Role? You’ll join at a pivotal growth moment - moving from a lean, high-performing engineering team to a scaled organisation with resources behind it. Your work will influence how healthcare decisions are made globally. You won’t be one engineer among many - you’ll be the technical owner of the web platform. You will be rewarded with Excellent Salary and Stock Options Apply now through LinkedIn Easy Apply

Job Summary: The Trading and Risk Management System (TRMS) team is responsible for developing, supporting and maintaining our front and back office trading web applications using Python, the proprietary Beacon Dependency Graph and Glint, the Beacon UI framework. The successful candidate will contribute to the growth of the platform, exercising an eye for detail across all aspects of the development lifecycle while maintaining organization and good code hygiene. This engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate will help Glint continue to grow, exercising an eye for detail across all aspects of the development lifecycle while maintaining organization and good code hygiene. This Senior Engineer should be able to effectively communicate both with internal teams and with clients. The successful candidate values teamwork and collaboration, as well as continuous learning and application of new technologies and trends. With progression in this track, the responsibilities expand to include leading teams, designing complex software systems, providing mentorship, and managing cross-functional integration. Responsibilities: • Design, build, deploy, and maintain quality code that is simple, well-structured, clear, and well-tested., • Effectively break down and solve complex problems that require research or collaboration., • Communicate effectively, regardless of medium, audience, or timing., • Work with internal and external clients to gather and analyze requirements and product enhancements, • Participate in code reviews and provide technical feedback to the team, • Strong command of multiple levels of automated testing (e.g., unit, integration, contract, end-to-end, etc.)., • Mentor new and less-experienced team members., • Initiate design and feature discussions, advocating for improvements in software performance, scalability, reliability, and security., • Coordinate with other teams to ensure the successful integration of software applications., • Troubleshoot and resolve production incidents quickly and effectively., • Understand, respond to, and address customer needs and issues with empathy and timeliness. Required Skills: • Proficiency in Python or another typed, object-oriented programming language., • Deep knowledge of software methodologies, tools, and typical architectural patterns., • Experience with trading and risk management solutions is a nice to have, • Experience designing and building customer facing applications/components, • Self-starter who is enthusiastic for software work in a software-as-a-service company., • Driven by client satisfaction., • Strong teamwork skills., • Ability to manage own time and deliver expected results on time., • Commitment to continuous learning and improvement., • Exceptional analytical skills., • Strong computer skills, including proficiency in Microsoft Office., • Excellent attention to detail and strong documentation skills., • Outstanding verbal and written communication skills., • Strong organizational and interpersonal skills., • Exceptional problem-solving abilities. Education and Experience: • Degree in Computer Science or related field., • 7+ years of software development experience using Python or any other OOP languages. Clearwater Analytics (NYSE: CWAN) is transforming investment management with the industry’s most comprehensive cloud-native platform for institutional investors across global public and private markets. While legacy systems create risk, inefficiency, and data fragmentation, Clearwater’s single-instance, multi-tenant architecture delivers real-time data and AI-driven insights throughout the investment lifecycle. The platform eliminates information silos by integrating portfolio management, trading, investment accounting, reconciliation, regulatory reporting, performance, compliance, and risk analytics in one unified system. Serving leading insurers, asset managers, hedge funds, banks, corporations, and governments, Clearwater supports over $8.8 trillion in assets globally. Learn more at ___.

A global leader and long-standing pioneer in the music industry is launching a brand-new D2C division. We are seeking a visionary Director of Engineering to lead the development of new products and a small team of engineers. 📍 Central London 💡 Who You Are You are a technical heavyweight who still loves the "how" as much as the "why." You have a proven track record of scaling platforms and leading high-performing teams. • Leadership: 4+ years of experience managing engineering teams (mentoring, hiring, and culture building)., • Domain Expertise: Experience in E-commerce/D2C environments (Shopify, NetSuite,..)., • Technical Depth: A background in modern stacks—specifically Python or Node.js, React, and Microservices architecture., • Cloud Native: Expert-level knowledge of AWS ecosystems., • Strategic Mindset: You’ve led system re-platforming or built "greenfield" products from zero to one. 🛠️ Key Responsibilities • Technical Roadmap: Own the end-to-end technical strategy for the new D2C platform, ensuring it is scalable, resilient, and secure., • Team Leadership: Build and manage a high-caliber engineering team, fostering a culture of excellence, testing, and clean code., • Architectural Vision: Lead the end-to-end delivery of this new product., • Stakeholder Influence: Collaborate with creative and commercial leadership to align technical delivery with the company’s artist-first mission., • Hands-on Guidance: While you are a leader, you aren't afraid to dive into technical design or architectural refinement to unblock your team. This is absolutely critical as this still ill be a technical role, where you'd be actively contributing to the System Design & Architecture. Ready to lead the next era of music tech? If you have the e-commerce pedigree and the leadership grit to build something new, let’s talk. Drop me a message to discuss the roadmap and the vision for this role.

Principal Full-Stack Engineer (TypeScript | React | Node.js) Location: London, UK (Hybrid: Tuesday and Wednesday in office) Top 3 Reasons to Apply: • 🚀 Architect and own a platform being built from the ground up, the CTO's top priority. No legacy code, just modern architecture., • 💡 Strategic Impact: Directly partner with the CTO to define the technical roadmap for a product aiming to be the "Shopify for the Wellness Industry.", • 💰 Compensation: Highly competitive salary package up to £105,000 base, plus substantial Stock Options. The Mission (The Role): A market-leading, UK scale-up in the on-demand services space is building a major new B2B platform that will transform how small businesses operate within the wellness sector. This is not a maintenance role it is a foundational, hands-on, and strategic leadership position. We are seeking a Principal-level technologist who is comfortable with high levels of autonomy and technical ownership. What You Will Be Doing (95% Hands-On): • Architectural Ownership: Design, implement, and lead the microservices architecture for the new platform (scheduling, payments, inventory, multi-tenancy)., • Code Leadership: Write clean, robust, and highly performant code across the full stack, setting the standard for all engineering practices. React / Next.js Node.js / Express/NestJS Cloud Architecture (AWS, Serverless, CI/CD). • Mentorship: Act as the technical lead for the new team, guiding best practices and system design choices. You Are The Ideal Candidate If: • You have 5+ years of professional development experience, with demonstrable leadership in a Senior or Principal capacity., • You have successfully architected and delivered greenfield, high-traffic web applications (ideally B2B/SaaS or Marketplace)., • You are a "product-first" engineer who understands that technical decisions drive business value., • You thrive in a high-accountability environment and can translate business goals into a technical roadmap. Interested in making a massive impact? #FullStackDeveloper #PrincipalEngineer #React #Nodejs #TypeScript #Greenfield #LondonJobs #TechJobs #CTO

Software Engineer – C++ / Linux (Medical Devices) Location: Remote / Hybrid Employment Type: Full-Time We are looking for a highly skilled C++ Software Engineer to join our technically diverse, multidisciplinary team developing next-generation intra-operative medical devices. This is an opportunity to work across application software, embedded systems, cloud platform integrations, and device connectivity — all within a cutting-edge, regulated environment. About the Role You will contribute to the core application software that powers our current and future surgical devices. This includes developing new features, improving reliability, and ensuring our systems meet medical-grade performance and security standards. You’ll also work closely with hardware teams, testers, and cloud engineers to deliver high-quality, production-ready software. What You’ll Do • Develop enhancements and new features for our intra-operative device software, • Take ownership of maintainability, reliability, and long-term performance of the software stack, • Build and improve device monitoring capabilities and cloud connectivity, • Investigate, debug, and resolve issues reported by QA, field support, and users, • Participate in security, safety, and regulatory compliance processes, • Write robust, secure-by-design code suitable for medical-grade systems, • BS/MS in Computer Science, Electrical Engineering, Electronics Engineering, or related discipline, • Strong recent experience in modern C++ (C++17 or higher), • Solid understanding of Unix/Linux environments, • Experience with inter-process communication frameworks (gRPC, DDS, Zenoh, etc.), • Experience working with deployed hardware systems and remote device management, • Hands-on experience with unit testing and TDD (Google Test or similar frameworks), • Ability to navigate complexity and think through system-wide impacts, • Strong problem-solving skills and willingness to ask for help when needed, • Experience with GUI frameworks (Qt, React, etc.), • Background in medical devices or other regulated industries (automotive, aerospace, finance), • Familiarity with AWS or cloud-connected devices, • Understanding of systems engineering and design principles, • Working knowledge of security best practices

Yaspa is an award-winning fintech that connects identity and money to simplify and accelerate the way we pay. Founded in 2017 by a former Worldpay CTO, Yaspa uses open banking to provide instant bank payments that are faster, more secure and more cost-effective than cards, and to help regulated businesses seamlessly verify customers and their payments. Yaspa operates across the UK and Europe, is regulated by the UK’s Financial Conduct Authority, and is backed by leading investors including Fin Capital, SGH Capital & Metavallon VC. Yaspa has recently secured a $12 million (£9m) investment led by Discerning Capital with participation from longstanding Yaspa investor Techstars Ventures. This milestone funding will accelerate our expansion into the US market as we continue to transform payments and identity services for regulated businesses. The role We’re looking for a talented back-end developers to work on our payments platform that’s powered by open banking. You’ll help to build new products and improve our existing payments based offering, playing a key role in helping the company move from its startup roots to cement its position as an enterprise grade financial platform. We want exemplary developers, ideally familiar with building enterprise systems, who can work in a fast paced environment within an agile team; who understands how IT systems are built and managed. You’ll be joining a tight-knit multidisciplinary team of fron-end and back-end developers; testers; UX and product - reporting directly to the CTO. Experience in any of the following industries is a plus: financial industry, open banking, iGaming, startups, or enterprise companies performing real time processing. Experience You will be expected to have the following: • 6+ years commercial experience with Java, • Good understanding of JVM (memory model, concurrency, data structures), • Spring framework, Spring Boot, • Maven, • Knowledge of REST APIs & Microservices, • MongoDB, • AWS, • Kotlin, • Git Pipelines, • Javascript, React, • Redis, • Knowledge of Linux Key Details Reporting to: CTO Hours: Full time Location London - Hybrid WFH model, x2 days a week onsite (Wed/Thurs) Working with Yaspa We are a fun, collaborative team based in London and Leeds (though many of us work remotely for part of the week). Benefits of working with us include: • A strong focus on culture - We’re a friendly bunch who work hard and support each other; if you’re excited by personal and professional growth, and being able to really make your mark, then this is the place for you!, • Flexible hours and hybrid working - We are in the office 2 days a week (typically Wednesdays and Thursdays), where we collaborate and learn from each other. This is matched by the balance of WFH to allow you to manage your days autonomously., • Choice of tech - It’ll probably be a Macbook, but we do give you the choice of which machinery you’d like to work on just in case you’re a die-hard Linux or Microsoft user., • WFH set-up allowance - Along with your new laptop, we will also provide you an allowance so you can get your perfect set up sorted., • Quarterly socials - The Yaspa team is fun and curious, so we make sure we get together to go-kart, throw darts, play board games and generally enjoy ourselves!, • Mental and physical health support - We provide you with an app that’s specially tailored to support your health, as well as access to 24-hour advice and free GP appointments. You can also access counselling and use the app for all parts of your life., • Generous holiday allowance - As well as all the UK public bank holidays, you get 28 days of holiday to enjoy and take as you’d like. Emails off, sunnies on!, • Matched pension (up to 5% matched contributions) - For planning ahead! Note • We cannot offer Visa sponsorship, • We're not working with external agencies at this current time. Next steps Interested? We’d love to hear from you. Please apply via LinkedIn with your CV and a covering letter explaining why you think you’re the right person for this role. You can find out more about us at ___. Please note that as an equal opportunities employer, Yaspa is committed to the equal treatment of all current and prospective employees and does not condone discrimination on the basis of age, disability, sex, sexual orientation, pregnancy and maternity, race or ethnicity, religion or belief, gender identity, or marriage and civil partnership. We aspire to have a diverse and inclusive workplace and strongly encourage suitably qualified applicants from a wide range of backgrounds to apply and join Yaspa.

Senior Software Engineer, Python, TypeScript, React - Elite funded Fintech this role will come with a competitive salary , benefits and equity A Series C funded fintech scale-up who has just raised over £350million and now valued at over £700million is hiring a number of Senior/Lead Software Engineer to join its high-performing engineering organisation in London. This is an opportunity to contribute to an organisation that has tripled revenues over the past 2 years and is being classed as one of the next Unicorns. The company operates at the intersection of technology and social impact, offering innovative and groundbreaking tools that enable financial stability across the world — all via a modern, mobile-first platform. Backed by leading venture capital and impact investors, the organisation is entering a new phase of growth, with engineering at the core. The Opportunity As a Senior/ Lead Engineer, you will play a key role in designing and delivering scalable, reliable systems that handle significant volumes of real-time data and transactions. You'll collaborate with product, data, and platform teams to deliver high-impact features that directly improve user financial wellbeing. This is a hands-on role for an engineer who values clean architecture, measurable outcomes, and meaningful user impact. What You’ll Do: • Design and implement distributed systems that are resilient, scalable, and secure., • Own technical decision-making across architecture and implementation — selecting the right tools and patterns to meet evolving business needs., • Collaborate cross-functionally with product managers, designers, and analysts to build features that deliver tangible value., • Contribute to technical strategy, support platform scalability, and lead by example through code reviews and mentoring., • Maintain a user-centred mindset, constantly measuring and iterating on how engineering decisions translate into product value. Technical Environment: • Languages & Frameworks: Python, TypeScript, React, Svelte, • Infrastructure & Tools: AWS, PostgreSQL, Snowflake, CI/CD pipelines, • Ways of Working: Agile squads, continuous delivery, outcome-oriented culture You’ll work in a collaborative, engineering-led environment where autonomy, accountability, and thoughtful innovation are valued over process-heavy delivery. What You Bring • Proven experience designing and delivering scalable backend systems in high-growth or high-load environments., • Strong technical depth in backend development, with working knowledge of frontend frameworks or data infrastructure a plus., • Demonstrated ability to lead by example — writing clean, maintainable code and supporting others through mentoring or technical leadership., • A pragmatic, product-oriented approach to engineering: you care about elegant solutions, but you care even more about user outcomes., • Prior experience in fintech or regulated environments is beneficial, but not essential. If you are an innovative and experienced Senior/Lead Software Engineer with a passion for using maths based solutions to solve complex business problems, then please apply now with your latest CV.

Senior Software Engineer (Architecture-Focused) Hybrid — London £70,000 - £80,000 + Benefits We’re partnering with a global adtech firm. They’re now looking for a Senior Software Engineer with architectural exposure to help design and deliver key platform components while remaining hands-on across Python, TypeScript/React, and Google Cloud. The Role You’ll play a hybrid role across system design, coding, and delivery, working closely with the CTO. Expect a healthy mix of: Architecture & Technical Direction • Contributing to the system design and technical roadmap for core scheduling and automation services, • Helping define engineering standards across API design, data models, observability, and CI/CD, • Supporting decisions on storage models, service boundaries, orchestration flows, and event-driven patterns Hands-On Engineering • Building backend services in Python (APIs, async workflows, automation pipelines), • Developing UI components in React/TypeScript for internal tools and dashboards, • Working in a GCP environment (Cloud Run, Cloud Functions, Pub/Sub, BigQuery, Firestore), • Optimising end-to-end performance of scheduling engines and workflow automation Collaboration & Delivery • Working with Product, Content Ops, and channel teams to translate real-world workflows into scalable technical solutions, • Reviewing code, supporting mid-level engineers, and contributing to release quality, • Communicating trade-offs and technical decisions clearly to non-technical stakeholders What You’ll Bring • Strong backend experience with Python (APIs, async, production systems), • Solid React/TypeScript experience for dashboards or internal tools, • Hands-on exposure to Google Cloud (Cloud Run, BigQuery, Pub/Sub, Firestore, etc.), • Experience building distributed or workflow-based systems (pipelines, schedulers, ETL, automations), • Ability to contribute to architectural discussions and improve system design, • A pragmatic mindset: balancing engineering quality with delivery Nice to Have • Experience with digital media, content workflows, or YouTube APIs, • Familiarity with Airflow, Composer, Dagster, or Prefect, • ML/AI awareness (classification, embeddings, tagging workflows), • Experience with high-throughput scheduling or rules engines Please apply!

Backend Software Engineer / Developer (C# .Net) London onsite to £150k Are you an experienced C#, backend focussed Software Engineer? You could be progressing your career in a senior, hands-on role at a global Sports Tarding business, earning substantial bonuses. As a Backend Software Engineer within the trading engine team you'll collaborate to design and develop real-time trading systems, you'll often be collaborating with he strategy team on Greenfield projects which you'll take ownership of and will see the business impact of. There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Location: You'll be based in plush City office on a fulltime basis, Monday to Friday. About you: • You have expertise with C# .Net, ASP.Net development, • You have a strong knowledge of databases (SQL or Oracle), • You're comfortable with JavaScript / React, • You have a thorough knowledge of Computer Science fundamentals such as OOP, Design Patterns, Data Structures, Algorithms, • You are collaborative with excellent communication and stakeholder management skills, • You are degree educated in Computer Science or similar technical discipline What's in it for you: As a Backend Software Engineer / Developer you will receive a competitive package: • Salary to £150k, • Bonus paid every six months based on personal performance (10-25%), • Professional development, • Pension, • Health Insurance, • Gym membership, • Social events, free fruit, snacks, coffee etc. Apply now to find out more about this Backend Software Engineer / Developer (C# .Net) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.

Full Stack Engineer London or Remote (UK-based) 6 Month Contract A great opportunity for a Full Stack Engineer to join a fast-moving, product-led web platform team focused on improving the tools, infrastructure, and overall developer experience used across multiple web engineering squads. This isn't a firefighting role - as a Full Stack Engineer, you'll be building and refining the systems that help other engineers move faster. The work spans both frontend and backend-leaning web engineering, centred around improving deployability, observability, and testability. You'll be unpicking dependencies, tightening up build tooling, and creating cleaner, more reliable ways for teams to ship and test their applications. As a Full Stack Engineer, you'll work closely with designers, product managers, and engineers across the platform to shape and deliver improvements from initial concept through to rollout. Engineers here are trusted to make decisions, share best practice, and take true ownership - whether that's optimising bundles, introducing better visual regression tests, or smoothing out a rough edge in the developer experience. Full Stack Engineer - Key Requirements: • Strong background in frontend engineering with a focus on modern web applications, • Deep commercial experience with JavaScript/TypeScript and React (experience with Next.js is ideal), • Solid understanding of the Node ecosystem and tooling (NPM and related build tools), • Hands-on experience setting up and maintaining test tooling (e.g. Jest, Playwright), • Bonus: experience supporting web applications in production environments, • Comfortable communicating with a range of stakeholders and sharing best practice, • Experience working in agile teams and taking features or improvements from design through to release This Full Stack Engineer contract starts ASAP for an initial 6-month term, with strong scope to extend. You can be based anywhere in the UK, with the option to work hybrid in London if you prefer. If you're a Full Stack Engineer who enjoys improving tooling, reducing friction for other developers, and taking end-to-end ownership of meaningful technical improvements, this role should be a strong match. We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation, or age.

Full Stack Engineer – Real Time Event Driven Systems London, Hybrid (3 days a week in Islington) We are seeking a Full Stack Engineer to join an innovative technology organisation that builds fully bespoke, high-performance systems. The technical environment is largely custom built, avoiding reliance on off-the-shelf platforms, which allows engineers to take real ownership of what they deliver and shape solutions end to end. The engineering culture is collaborative and modern, with agile development and epic ownership at the core of how the teams operate. This role suits someone who enjoys solving complex problems, working across a varied technology stack and being closely involved in the entire software lifecycle. What you will be doing • Designing and delivering real time, event driven and highly available back-end systems using C# and the .NET ecosystem, • Building modern and intuitive front-end applications with React and TypeScript, • Taking full ownership of features from discovery and design through to build, deployment and ongoing improvement, • Working across a bespoke technology landscape where custom engineering is valued above plug-and-play solutions, • Helping to migrate and modernise systems in the cloud and contributing to long-term platform evolution, • Implementing CI/CD pipelines and Infrastructure as Code for automated and reliable delivery, • Collaborating with engineers who value clean design, testing and continuous improvement What we are looking for • Experience working on real time, event driven or high-volume distributed systems, • Ability to own epics and deliver complex features end to end, • Strong server-side engineering skills with an understanding of scalable and highly available architectures, • Comfort working in a bespoke engineering environment where solutions are designed from the ground up, • Familiarity with modern testing practices and building quality into every layer of the stack, • Clear communication skills, curiosity and confidence in contributing ideas, • Someone who enjoys working across the full software lifecycle including architecture, implementation, testing, deployment and iteration Technologies you will work with • Languages: C#, .NET, JavaScript, TypeScript, HTML, CSS, • Front end: React, Redux, • Distributed and event driven: Akka, Rx, • Messaging and streaming: Kafka, RabbitMQ, ActiveMQ, • Databases: SQL and NoSQL, • Containers & orchestration: Docker, Kubernetes, Helm, Kustomize, • Tooling: Jenkins, Git, • Observability: ELK, DataDog, • Cloud: AWS, including EKS and Lambda Why this role stands out This is an environment where engineers are encouraged to take broad responsibility, contribute across the full stack and influence how systems evolve. You will work on bespoke applications, complex real-time back-end services and modern front-end interfaces. It offers both deep ownership and the opportunity to grow within a highly capable engineering team.

Lead React Native Engineer | £110,000 + Equity | React Native | TypeScript | London | Hybrid Join a fast-growing, early-stage consumer start-up that’s reimagining how people make last-minute plans. The product is already live in London and New York, with an active and engaged user base, and the business is now entering its next phase of growth. This is an opportunity to step in as the first in-house technical lead, owning the engineering direction while working closely with senior stakeholders to scale both the product and the team. You will be responsible for: • Owning and evolving the mobile and backend architecture across the full stack, • Building and scaling user-facing features using React Native and TypeScript, • Improving performance, reliability, and overall user experience, • Integrating third-party services such as payments, messaging, and analytics platforms, • Collaborating with an offshore engineering team to deliver high-quality releases, • Shaping the technical roadmap alongside product and leadership, • Setting engineering standards around code quality, speed, and best practices, • Mentoring engineers and supporting future team growth Requirements: • Strong experience building consumer-facing (B2C) mobile products, • Expert-level experience with React Native and TypeScript, • A full-stack mindset (APIs, databases, cloud infrastructure), • Experience working in early-stage or fast-moving start-up environments, • Comfortable taking ownership and working with ambiguity, • Based in London (hybrid working model) Tech Stack: • Frontend: React Native, TypeScript, Expo, React, • Backend: Node.js, NestJS, PostgreSQL, Redis, • Infrastructure: AWS, Docker, Terraform, • Integrations: Payments, messaging, subscriptions, analytics Interview Process (Remote-Friendly) • Introductory Call, • Technical Interview / Assessment, • Final Interview with Senior Leadership If this sounds like a role you’d like to explore, click APPLY and I (Sam Barcia) will be in touch to share more details. Lead Engineer | React Native | TypeScript | London | Hybrid | Equity

Senior Full Stack Engineer | Payments & Checkouts | Node.js | React.js | Remote Europe | Up to £100K Maze has been retained by one of Europe's fastest-growing platforms in the creator economy space to hire a Senior Full Stack Engineer for the Payments & Checkouts team. Financial systems are core to their product, and this role will help shape the scalable checkout and payout infrastructure that supports millions of global transactions. Key Responsibilities • Design and build scalable financial systems, including global checkout and payout flows., • Develop financial tooling such as fraud checks, reconciliation tools, reporting dashboards, and internal admin features., • Integrate and optimise third-party payment providers and alternative payment methods., • Improve developer experience, ensuring financial systems are resilient, testable, and maintainable., • Work cross-functionally with product, design, compliance, and operations to align technical work with business priorities., • Deliver reliable, high-quality systems quickly in a fast-scaling environment. Key Requirements • Strong engineering experience with TypeScript, Node.js, React, and Postgres., • Proven experience building or scaling high-volume payment and payout systems., • Ability to design complex, fault-tolerant financial architectures., • Hands-on senior engineer who enjoys solving deep technical problems., • Excellent communication and stakeholder management., • Ability to move fast while maintaining quality, security, and compliance., • Background in creator economy or fintech. Why Join? • Shape the core financial infrastructure of a rapidly scaling global platform., • Work on high-impact systems that directly influence revenue, trust, and conversion., • Competitive salary, equity, and benefits., • Mission-driven, high-ownership culture with fast execution and transparency., • Flexible working, strong wellbeing support, and recognition as a top workplace. Location: Remote within Europe - quarterly team meetings in London. This role does not provide sponsorship and you must be legally authorised to work in the country you currently reside in. If you match these requirements, please apply within!

Senior Fullstack TypeScript Engineer 2-3 days p/week in London Up to £100k Senior Fullstack TypeScript Engineer – Would you like the opportunity to work for a venture-backed startup with big ambitions? They’re currently looking for a Senior Full Stack Engineer with strong TypeScript experience to join their collaborative engineering team. You’ll work across the full stack, contributing to customer-facing features with React, Node.js, GraphQL, and Postgres As a Senior Fullstack TypeScript Engineer, you’ll be responsible for building powerful enterprise web application powered by large proprietary datasets. This opportunity is suitable for someone who’s interested in clear growth, while also getting the opportunity to lead projects. Requirements: • Strong in full stack TypeScript, • Are comfortable in fast-moving environment, • AWS, • A Computer Science background would be a bonus (not a hard requirement If you’re a Senior Fullstack TypeScript Engineer looking to work in a fast-paced environment, please apply.

Lead Software Engineer – React/TypeScript/AWS – £90-100k We are partnering with a well-funded startup that is building an innovative platform empowering private investors to manage their portfolios not only for financial performance but also for sustainability and ESG impact. As an AI-native platform on an exciting growth journey, they are seeking a lead engineer to help shape their architecture as they scale. The Role You’ll take ownership across the full stack- from designing APIs and data models to crafting seamless, high-performing user interfaces. Working closely with product and design teams, you’ll help bring to life tools that make investing smarter, more transparent, and more sustainable. What you’ll bring • 6+ years of experience building production web applications and at least 2 years in a tech lead or staff role., • Solid experience with React, TypeScript, and Node.js, • Familiarity with Next.js and GraphQL, • Previous startup experience, • A passion for clean code and intuitive product design, • Interest in fintech, investing, or ESG innovation Nice to Haves • Comfortable working with tools like Postgres, Prisma, GraphQL, or Next.js, • Hands-on experience with AI or agent frameworks (such as LangChain or LangGraph), • Experience building something from scratch — whether a side project, startup, or open-source app Tech Stack • Frontend: React, TypeScript, Next.js, • Backend: Node.js, GraphQL, • Database & Cloud: Postgres, AWS Why Join? • Opportunity to contribute to a mission-driven product at the intersection of finance and sustainability, • Work within a collaborative, high-performing team where individual input is valued, • Play a key role in an early-stage company where contributions directly influence success, • Competitive salary (£90-100k), • Fully Remote Role Lead Software Engineer- Fully Remote- £90-100k

Senior Software Engineer - Gen AI 1 day a week in Central London, hybrid working Salaries paying £80k-£130k + annual bonus Oliver Bernard have partnered with a rapidly growing FinTech in London who are building the next generation of AI based financial products. We are looking for Senior Software Engineers who have commercial experience with GenerativeAI and LLM integrations. You will be building Gen AI frontend agents and working with hybrid codebases with hosted prompts. This is a full stack opportunity working in their Gen AI team, working across Python, TypeScript and React. We are looking for strong product led engineers, not just high scale specialists. Tech Stack: Python, TS, React, React Native, Cloud, DevOps, AI/LLMs, Vector Databases. The client are looking for someone to start as soon as possible and they are moving quickly with interviews! Please apply now for more information! Senior Software Engineer - Gen AI

About the company Auquan develops autonomous AI agents that eliminate the repetitive, manual work slowing down financial institutions. Our technology supports credit, investment, ESG, and compliance workflows for leading firms including Goldman Sachs, UBS, CVC, and MetLife. Today, 40% of the world’s top 50 financial institutions use Auquan to remove manual processes, speed up decision-making, and achieve greater strategic impact. With engineering and product teams growing across the US and UK, we’re building an elite force of innovators ready to redefine what’s possible with AI and machine learning. The Role This role sits at the intersection of systems architecture, agentic AI workflows, and customer-facing problem solving. You’ll design multi-agent systems, build reusable primitives, and convert complex financial workflows into scalable automated products. You’ll work directly with leading investment firms and own the lifecycle of every agent you build - from design to reliability, deployment, and scale. What You’ll Do • Take ambiguous workflow requests and turn them into scoped, architected, implemented, and deployed multi-agent systems, • Build reliable multi-step, multi-agent workflows used in production by financial institutions, • Own reliability, latency, success metrics, and customer adoption, • Work directly with customer engineering teams to deliver smooth deployments, • Convert bespoke workflows into reusable platform primitives and components, • Build orchestration logic, tools, templates, and pipelines used across engineering pods, • Ship V1s in days, operate with high agency, tight prioritisation, and strong defaults, • Identify patterns across customers and turn them into reusable systems, • Influence architecture and direction of core platform components, • Use AI for coding, testing, debugging, workflow design, and documentation, • Build evals, safety nets, and AI-native engineering workflows Must haves: • Degree in Computer Science, Software Engineering, or equivalent practical experience., • Proficiency in Python, • Strong understanding of backend fundamentals: APIs, databases, caching, messaging systems and distributed architectures., • Strong problem-solving abilities and attention to detail., • Ownership mindset capable of shipping end-to-end features with minimal oversight., • Excellent communication skills and collaborative attitude., • Team-oriented, low-ego mindset and curiosity for learning. Nice to haves: • Front-end development (Typescript, React, NextJS...) or full-stack exposure, • Built or orchestrated multi-step LLM or agentic workflows, • Experience with financial workflows (credit, investment, ESG, risk), • Infra/ops exposure (Kubernetes, Terraform, Azure/AWS, CI/CD, observability), • Experience at early-stage startups, • Built internal frameworks, tooling, or templates used by multiple teams, • Experience with evals, guardrails, or workflow orchestration systems Team & Culture High-agency, high-velocity, no-politics. We move fast, unblock ourselves, work directly with customers, give clear feedback, and minimise process. We’re building the platform that automates analytical work across finance - a category-defining opportunity.

Python Developer - Python, React, TypeScript Hybrid working, 1 day a week in Central London Day rates paying £500-£600 (Outside IR35) Oliver Bernard have partnered with a rapidly scaling FinTech in London who are looking for Senior Full Stack Engineers on a contract basis. Tech Stack: Python, TypeScript, React, AWS/GCP, DevOps. The office is based in Central London and would require 1 day a week onsite (with some flex). This is an Outside IR35 contract role, paying £500-£600 per day, and is running for 12 months. Please apply now for more information! Python Developer - Python, React, TypeScript

Senior Software Engineer | Senior Engineer | Senior Full Stack Engineer 💰Up to £110,000 per annum 🏡Office based in Camden, 2 days a week in office 💻TypeScript, Node.js, React.js, PostgreSQL My client is hiring for a Senior Software Engineer to join a high-growth product company delivering real-time salary transparency across Europe. This Senior Software Engineer role sits at the heart of the next growth phase, with ownership across platform scalability and new product development. If you are a Senior Software Engineer who enjoys driving technical direction while staying hands-on, this role offers genuine influence over product and engineering outcomes. Key Responsibilities • Lead technical delivery across multiple teams, • Own and influence architectural decisions, • Drive improvements to performance, reliability, and CI/CD, • Work closely with Product and Data on technical roadmap planning, • Remain hands-on with code reviews, design, and problem solving Requirements • Experience as a Senior Software Engineer or Senior Engineer., • Full-stack experience across React, TypeScript, Node, • Experience scaling modern web platforms, • Strong problem-solving and communication skills, • Comfortable working in a fast-paced scale-up environment Compensation & Benefits • 37 days holiday (25 days + 4 wellness days + bank holidays), • Pension matched up to 6%, • Wellness budget, • Private healthcare If you are a Senior Software Engineer or Senior Full Stack Engineer looking for real ownership, real impact, and the chance to shape a scaling product, this is a standout opportunity. Senior Software Engineer | Senior Engineer | Senior Full Stack Engineer

We are seeking an experienced and highly motivated Senior Full Stack Engineer (Node.js/React.js) to join our growing technology team. This role offers the opportunity to contribute to the design and development of a global, high-traffic eCommerce platform that processes thousands of transactions daily. As a key member of the engineering function, you will work collaboratively across disciplines to deliver robust, scalable, and high-performing solutions that enhance customer experience and drive business growth. Key Responsibilities • Design, develop, and maintain scalable applications across the full technology stack., • Collaborate within an agile team environment to produce clean, maintainable, and testable code., • Contribute to architectural design discussions and influence technology direction., • Optimise both front-end and back-end performance to ensure seamless user experiences., • Support continuous improvement initiatives through the adoption of new technologies and best practices. Skills and Experience • Demonstrated experience as a Full Stack Engineer or in a similar role., • Advanced proficiency in React, Node.js, JavaScript/TypeScript, HTML, and CSS., • Strong understanding of back-end technologies, databases, and system integration principles., • Proven ability to write clean, efficient, and well-tested code., • Experience working with major cloud platforms such as AWS, Azure, or GCP., • Excellent communication skills, with the ability to articulate technical concepts clearly., • A proactive approach to problem-solving with a focus on scalability, maintainability, and continuous improvement. Desirable • Degree in Computer Science or a related field., • Experience within the eCommerce sector., • Familiarity with CI/CD tools such as Jenkins or GitHub Actions. Why Join Us • Opportunity to work on a global product with significant customer impact., • Inclusive environment where your expertise and ideas are valued., • Collaborative and forward-looking engineering culture., • Flexible working arrangements and strong career development opportunities. Salary - up to 80k with bonus + benefits London (hybrid working - 2 to 3 days a week in office)

Core JavaScript / TypeScript Engineer - London - Hybrid £150,000 – £200,000 + pension, private healthcare, gym membership, hardware budget London (Hybrid – 2 days WFH) A high-growth software company is building the next generation of high-performance UI frameworks and data-intensive visualisation technology. Their products power mission-critical applications used by global enterprises, financial institutions, and technology firms, relied on every day by millions of users worldwide. They hire engineers who enjoy working close to the metal of the browser, solving problems that demand a deep understanding of algorithms, runtime behaviour, and performance at scale. This is not typical web development. It’s engineering at the limits of what modern browsers can do. What you’ll work on • Design and optimise the core runtime of a high-performance UI framework used globally in real-time environments., • Push the boundaries of JavaScript, TypeScript, and the browser rendering pipeline to deliver smooth performance on massive datasets., • Solve complex engineering challenges around tree structures, recursion, memory allocation, rendering performance, and data-flow architecture., • Own features end-to-end, design, build, test, document, and release., • Contribute to libraries used by developers and enterprise engineering teams worldwide. What you’ll bring • Deep, practical mastery of vanilla JavaScript and TypeScript., • Strong exposure to C++, Java, or C#, with a systems-level mindset., • A solid understanding of data structures, algorithms, and performance optimisation., • Experience building complex, highly scalable systems — not just CRUD interfaces., • Familiarity with frameworks such as React, Angular, or Vue, and a strong grasp of how they interact with the DOM., • Ability to diagnose bottlenecks, eliminate memory leaks, and optimise rendering and throughput., • An appreciation for clean software design, correctness, and maintainability. Why this role matters • You’ll work on core engineering problems that most developers never get close to., • You’ll join a team of deeply experienced engineers with backgrounds across low-level languages and large-scale systems., • You’ll operate in a fast, engineering-led culture with minimal bureaucracy and high autonomy., • You’ll enjoy a top-tier package, including:, • £150,000–£200,000 salary, • Private healthcare, • Pension, • Gym membership, • 25 days holiday + bank holidays, • High-end hardware budget, • Central London office with two days WFH each week. If you want to engineer the foundations behind some of the world’s most demanding applications, this is the environment built for you. Get in touch!

Lead Software Engineer (Python/ Full Stack) | Financial Services Location : London (Hybdrid) Salary : Up to £130,000 + Equity + Private Health Python | Front End (React/ Typescript| Distributed Systems | API Architecture | Cloud | Microservices I’m currently looking for: Lead Software Engineer (Python, APIs, React, Typescript) Our client builds high-scale, high-performance platforms used by millions of customers every day powering intelligent digital experiences, real-time services, and seamless integrations for some of the UK’s most recognisable financial services brands. They’re a product-led engineering organisation with a deep focus on craft, simplicity, and technical excellence. With massive data volumes, complex system interactions, and an engineering culture that ships fast, this is an environment built for people who love solving hard problems at scale. If you want to lead architecture, shape platform direction, and build world-class back-end systems that power mission-critical products, this is the one. ROLE: Lead Software Engineer (Software Engineering, Technical Leadership, Mentoring, Architecture Ownership) We’re seeking Lead Back End Engineers who can drive backend strategy, guide technical decisions, and elevate engineering standards across key product areas. This is a senior engineering role - ideal for someone who wants ownership, architectural influence, and the chance to build systems that scale to millions of users. You’ll define technical vision, lead critical backend projects, and act as a trusted engineering voice in product and platform discussions - shaping everything from API design and system architecture to performance, resilience, and scalability. What You’ll Bring 🔥 Expert-level Python & Front End engineering skills — clean, scalable, production-grade code ⚙️ Strong experience building and designing APIs (REST, GraphQL, or gRPC) 🔧 Hands-on architectural depth — Microservices, distributed systems, event-driven patterns ☁️ Cloud expertise (AWS preferred) — Lambda, ECS, DynamoDB, SQS, SNS, API Gateway 🚀 Proven track record delivering high-scale backend systems 📈 Experience leading engineers — mentoring, technical direction, code standards 🗣️ Excellent communicator with the ability to influence product and technical strategy 🤓 Passion for robust engineering — testing, observability, optimisation, performance Apply now and take a lead role building the foundations of one of the UK’s most ambitious consumer platforms.

Software Engineer – Full Stack (Python & TypeScript) A fast-scaling FinTech is expanding its engineering team and is hiring a Software Engineer with strong full stack capability across Python and TypeScript. Their platform supports businesses across the UK and continues to grow at pace, with billions already delivered through their systems. This role sits at the centre of their product and platform development, giving you the opportunity to work across the entire stack, influence how systems evolve, and help shape the next chapter of their technology landscape. What You’ll Work On As a full stack engineer, you’ll be involved in every layer of the product — backend services, frontend applications, and everything in between. You’ll: • Build and refine production systems across backend (Python) and frontend (TypeScript/React), • Design APIs, data flows, and user-facing features that work together seamlessly, • Work end-to-end: plan, build, ship, and support the software you create, • Help shape architectural choices for services, data, cloud infrastructure, and UI, • Collaborate with product, design, data, and engineering peers to deliver impactful outcomes, • Contribute to engineering standards, mentor teammates, and improve team ways of working, • Prioritise simple, maintainable solutions over unnecessary complexity, • Leverage modern tooling — including AI-assisted development — to speed up delivery and improve quality Tech You’ll Use Backend: Python, PostgreSQL, BigQuery, MySQL Frontend: TypeScript, React, styled-components Testing: Jest, React Testing Library, Cypress, pytest Cloud & Infra: AWS, GCP, ECS Fargate, Terraform, Docker CI/CD: GitHub Actions, automated pipelines No one is expected to know everything — what matters is strong engineering fundamentals and a willingness to learn. How the Engineering Teams Operate • Cross-functional squads with shared ownership of outcomes, • Continuous deployment with automated pipelines, • Test-first mindset and focus on high reliability, • Cloud-native systems designed for resilience and scale, • Engineers have full lifecycle ownership from idea → production → iteration, • Decisions guided by real user needs and data Team Culture • Inclusive, diverse teams where everyone’s input is valued, • Low-ego, supportive, and collaborative environment, • Space to experiment, propose new ideas, and influence direction, • Culture of learning, curiosity, and continuous improvement, • Strong emphasis on building robust systems, not just shipping fast

Software Engineer (React) Central London - 4 days onsite £80,000-£100,000 (maybe scope for more) We’re looking for #1 engineering hire into an already established multi-million-pound turnover business. You’ll work directly with the founder to build React-focused solutions used by real customers, with genuine ownership from day one. You’ll also get the opportunity to work closely with one of the earliest contributors to OpenAI / ChatGPT, applying AI thinking to practical, revenue-driving products. The role • Lead and own the development function, • Build React-based customer-facing solutions, • Take ideas from concept → production → market, • Be the technical decision-maker from day one This is a hands-on individual contributor role, with scope to build a team later. Who this suits • Strong educational (or similar) background, • Strong React fundamentals, • Comfortable owning problems end-to-end, • Happy working closely with founders, • Keen to get stuck into AI and automation It would be a bonus if you understand monitorization The details • Location: Central London (4 days in office), • Salary: Circa £100,000, • Interview process: 2 stages, • Geniune chance to build out a function If you’re looking for real ownership, serious responsibility, and exposure to top-tier AI minds, this is worth a conversation.

Senior Full Stack Engineer - Python, React Hybrid working, 1 day a week in Central London Day rates paying £500-£600 (Outside IR35) Oliver Bernard have partnered with a rapidly scaling FinTech in London who are looking for Senior Full Stack Engineers on a contract basis. Tech Stack: Python, TypeScript, React, AWS/GCP, DevOps. The office is based in Central London and would require 1 day a week onsite (with some flex). This is an Outside IR35 contract role, paying £500-£600 per day, and is running for 12 months. Please apply now for more information! Senior Full Stack Engineer - Python, React

Fullstack Elixir Engineer London, UK (Hybrid – 1 day per week on-site) Contract (£500-650 outside) About the Role Join a fast-growing AI technology firm in London as an Elixir Engineer, building large-scale, data-driven systems that power intelligent automation and machine learning. You’ll work on high-performance backend services and APIs using Elixir/Phoenix, Typescript & React, collaborating closely with data and DevOps teams in a technical, engineering-led environment. Key Responsibilities • Develop and scale backend systems and APIs in Elixir, • Design distributed, high-throughput services and real-time infrastructure., • Collaborate across teams to deploy and optimize microservices. Requirements • Proven experience with Elixir (3+ years), • Familiar with PostgreSQL, Kafka/RabbitMQ, Docker, and AWS/GCP., • Familiar with Typescript & React., • Great communicator who thrives in collaborative hybrid teams.

Senior Fullstack Engineer (React/Python) Salary: Up to £80k Location: 1 day p/week in London Senior Fullstack Engineer (React/Python) - would you like the opportunity to work for a start-up who are helping organisations reduce their energy costs? They have raised over £2.5 million so far and are pushing for Series A funding. As a Senior Fullstack Engineer, you will work with their product team to design, code and test their platform, while also working together with their customers and partners Key requirements: • 4+ years’ experience working with JavaScript and React., • Experience working with Python., • Experience working with Django., • AWS., • Bonus if you have worked in start-ups before. If you’re a Senior Fullstack Engineer (React, Python) looking for a new challenge, please apply.

Lead Software Engineer – FinTech A high-growth FinTech is expanding its engineering leadership and is looking for a Lead Software Engineer to guide the development of core platform capabilities. Their products enable businesses across the UK, and the organisation is scaling quickly as demand increases. This position is ideal for someone who enjoys hands-on engineering while also influencing architecture, mentoring others, and shaping how modern software is built and delivered. What You’ll Take Ownership Of As a technical leader within the team, you’ll be responsible for: • Designing, building, and improving large-scale distributed systems, • Working across both backend (Python) and frontend (TypeScript/React) components, • Taking full lifecycle ownership of your work — from concept to deployment and ongoing operation, • Contributing to architectural direction and evaluating technical decisions, • Supporting and uplifting engineers through mentorship and pairing, • Helping the team prioritise simplicity, performance, and long-term maintainability, • Making engineering decisions with product, users, and business impact in mind, • Leveraging modern tooling and AI-assisted development to optimise delivery How the Engineering Teams Operate • Squads are cross-functional with engineers, product, and design working closely together, • Work is guided by clear outcomes and real user needs, • Continuous deployment is the default, supported by fully automated pipelines, • Strong emphasis on testing, reliability, and observability, • Engineers hold end-to-end responsibility for the systems they create, • The platform is cloud-native and designed for scale, resilience, and rapid iteration Engineering Culture • A collaborative environment where ideas are shared openly and respectfully, • Diverse teams where inclusion is part of the everyday culture, • Engineers have freedom to experiment and propose new approaches, • Low-ego, supportive leadership focused on enabling people to do their best work, • A culture of continuous learning and improvement, backed by data and real-world feedback Tech Environment You’ll work with a modern and thoughtful stack, which includes: Python • TypeScript • React • PostgreSQL • BigQuery • MySQL • Docker • Terraform • AWS • GCP • ECS Fargate Plus a strong testing culture powered by: Jest • Cypress • pytest • React Testing Library

Senior Full-Stack Engineer (Fintech / AI) Location: London Bridge (Hybrid – 3 days onsite) W Talent is supporting a high-growth fintech startup building a platform that simplifies access to lending. By combining human expertise with modern AI, the team enables advisers to match customers to the right loans in seconds. The product is live in advanced beta and preparing for commercial scale. This is an opportunity to join early, work hands-on, and help shape a platform that genuinely improves people’s financial lives. The role You’ll be a senior, hands-on engineer working across the full stack in a small, experienced team. Responsibilities include: • Building features end-to-end using Python, React, and TypeScript, • Writing clean, well-tested, production-grade code, • Improving architecture, performance, and scalability, • Strengthening testing, CI, and CD pipelines, • Collaborating closely with Product to solve real user problems, • Working with modern AI models and a contemporary AI engineering stack, • This role offers real ownership, fast decision-making, and minimal bureaucracy. What we’re looking for • Proven experience building and running production-grade systems in a senior engineering role, • Strong full-stack capability across Python and React, • Solid SQL skills, • A strong testing mindset and commitment to engineering quality, • Someone who leads by example and takes ownership, • Pragmatic, curious, and delivery-focused, • Comfortable working in a small, fast-moving team environment Nice to have • Redis, Celery, • AWS or GCP, • Docker or Kubernetes, • SOC 2 familiarity, • Interest in Rust or Go Why consider this opportunity? • Influence the technical foundations of a fintech platform about to scale, • Make meaningful technical decisions from day one, • Work alongside senior engineers who value clarity, quality, and speed, • Competitive package, EMI, and full medical cover, • A business that uses AI properly in production — not just in slide decks Location & eligibility • UK right to work required (no visa sponsorship available), • Hybrid working: 3 days per week in the London Bridge office, • Candidates must be able to commute reliably

Senior Full Stack Engineer – ASP.Net Core / C# / React – London (Hybrid – 3 days onsite) - £60k - £80k DOE Meraki Talent have partnered with a boutique investment client who are growing their Engineering team due to some great new client wins. Joining a cross functional team, you will deliver custom data warehousing and platform services to private market clients. This role goes far beyond just writing code. You will collaborate directly with senior stakeholders to understand business needs, translate them into technical solutions, taking ownership from concept through to delivery. You will play a key role in shaping technical direction and designing clean and robust systems. Technical Experience • Full Stack Development experience across web applications, • Strong experience across their core products – ASP.Net Core, C#, React.js, • Knowledge of HTML / CSS / JavaScript / Typescript, • Deployment and support of solutions into Azure, • Experience of performance tuning when dealing with large data sets, • Strong stakeholder management, • Experience taking a product from inception through to completion. Please note: You must have full working rights in the UK and be able to commit to 3 days each week onsite in London.

TypeScript Engineer (Contract - Outside IR35) £400 per day We’re looking for experienced TypeScript Engineers to join an exciting upcoming project. This is a fully remote role, open to candidates based in the UK only. 🔧 Key Requirements • 3+ years of professional TypeScript experience, • React.js + Node.js, • 100% Remote (UK-based only) 💡 Desirable Skills • Knowledge of SQL or React, • Experience with AI / LLMs or RAG (Retrieval-Augmented Generation), • Familiarity with integration testing, • Exposure to multiple programming languages beyond TypeScript, • Daily use of AI coding assistants, • Strong problem-solving and ability to work independently If you’re a quick learner, a hands-on problem solver, and eager to work on cutting-edge projects, we’d love to hear from you. TypeScript Engineer (Contract - Outside IR35) £400 per day

Founding Software Engineer | React Native, React, Python/Node.js | AI Start-Up | London Hybrid 3x/Week | Up to £120k + Equity We have just partnered with one of the most exciting early stage start-ups in the AI creativity space who need an engineer who will come in, be scrappy and move super fast to deliver by challenging status quo and deleting when necessary. They are currently partnered with one of the biggest household names in the world and as such need to expand their team of 15 going into 2026. They have a team of 5+ engineers in their Founding team from the top companies in the world including Twitter. Most of their backgrounds are from a Founder/Co-Founder, Founding Engineering Team or VC backed background (On Deck, Y Combinator, Antler or Entrepreneur First) and that is what they are looking for in their next hire without looking at years of experience. This Founding Software Engineer role is for someone who has full stack experience mainly working on Frontend (React/React Native) and Backend (Node/Python) projects. It is for someone who can challenge the status quo and not be worried about putting their opinion across. Someone who can provide the team with strong engineering practices but also contribute to the overall build of the product without worrying about unblocking themselves if needed. It is the perfect opportunity to join a company that is backed by a CEO with tons of experience in running businesses and leading them to IPO stage, as well as, with the capacity to self-fund this venture. 🤖 Tech Stack: React Native, React, Node, Python (AI) 🏠 Hybrid/Remote: 3-4 days/week in Central London 🤑 Salary & Benefits: Up to £120k + Equity + Holidays What they are looking for: ⭐ Strong experience in start-up/founding positions building and scaling projects but also adjusting to a pivot in business - do not worry if the start-up did not kick off, everyone's welcome! ⭐ Confidence in working with React Native on Mobile is a plus with experience on React/Node/Python as a desirable skill (Please note not all backend tech is necessary, but it helps to show expertise in learning new tech stacks). ⭐ Ideally someone with experience from programmes like Entrepreneur First, Antler, On Deck or Y Combinator. ⭐ Years of experience do not matter as long as relevant experience is in place so do not feel limited by the length of your CV. If interested, please apply to this role or email me at Founding Software Engineer | React Native, React, Python/Node.js | AI Start-Up | London Hybrid 3x/Week | Up to £120k + Equity

Founding Software Engineer – AI (Python / Typescript) £150,000 – £175,000 + meaningful equity On-site in London (£10K relocation provided) Join a deeply technical AI-native startup founded by PhDs and researchers from Cambridge, Imperial, and other top European and US institutions. This is an opportunity to work directly with a team who’ve published at leading AI conferences, built open-source tools used across the industry, and scaled high-performance systems from first principles. Now, they’re hiring a Founding Software Engineer to help build the next generation of reasoning tools powered by large language models. The product is already live with paying customers, and the company is well-funded with serious growth ambitions. What you'll work on: • Architecting and scaling LLM-powered applications, • Building efficient inference pipelines and backend infrastructure, • Working across the stack to ship production-grade code fast, • Collaborating directly with the founders and early technical hires What they’re looking for: • A degree from a world-leading university (e.g. Cambridge, Oxford, EPFL, ETH Zurich, ENS, TUM, etc.), • Experience in AI-focused products, ideally within a high-growth or research-heavy environment, • Strong Python engineering skills; full-stack capability a bonus (Postgres, Typescript, React), • A bias toward action, autonomy, and technical depth This isn’t a typical startup job. It’s a chance to work alongside an elite team of engineers and scientists on hard technical problems — with equity and early ownership in a company building something truly original in the AI space. If you’re ready to build fast, learn constantly, and work on meaningful AI challenges, we’d love to hear from you.

Junior-Mid Fullstack Engineer (React/Python) Salary: Up to £65k Location: 1 day p/week in London Junior-Mid Fullstack Engineer (React/Python) - would you like the opportunity to work for a start-up who are helping organisations reduce their energy costs? They have raised over £2.5 million so far and are pushing for Series A funding. As a Junior-Mid Fullstack Engineer, you will work with their product team to design, code and test their platform, while also working together with their customers and partners Key requirements: • 2+ years’ experience working with JavaScript and React., • Experience working with Python., • Experience working with Django., • AWS., • Bonus if you have worked in start-ups before. If you’re a Junior-Mid Fullstack Engineer (React, Python) looking for a new challenge, please apply.

Software Engineer - Computer Science degree Salary: £Up to £55k Location: 3 days p/week in London Software Engineer - would you like the opportunity to work for an early stage start-up currently looking for several Software Engineers (0-2 years experience)? You’ll be joining their in-house product and platform team, where you’ll work alongside and learn from highly experienced software developers and product managers. As a Software Engineer, you will get a lot of responsibility and work in an award-winning team, getting the opportunity to work on a wide variety of projects and tasks. Requirements: • Experince working with React, TS, Next.js (commercial or personal), • Worked or experimented with LLMs would be a bonus, • AWS experience would also be a huge bonus, • Must have a Computer Science degree If you’re a Software Engineer who enjoys working on a variety of projects and tasks, please apply.

Mid-Level Software Engineer (React Native) Location: Hybrid – London About Nando’s & Our Values At Nando’s, everything we do is guided by our five values: Pride – We take pride in our work and aim for excellence. Family – We look out for each other and build strong relationships. Passion – We bring energy, purpose, and love to what we do. Integrity – We do the right thing, even when no one’s watching. Fun – We enjoy the journey and create moments that make people smile. These values inspire how we build products, how we treat each other, and how we support our Nandocas across the business. About the Role The Digital Workplace Experience (DWE) team crafts the internal digital tools that empower every Nandoca to learn, grow, connect, and thrive. We’re looking for a Mid-Level Software Engineer who’s excited to learn, collaborate, and make a meaningful impact—someone who embodies our values in the way they build and the way they work with others. Your early focus will be on helping to build and scale Nossa Casa, our brand-new Nandoca mobile and web application—plus the APIs and design system that power it. This is a role for someone who is curious, proactive, and driven to develop their skills with the support of a warm and collaborative team. About the Digital Workplace Experience (DWE) Team We’re a cross-functional team shaping the digital fabric of life at Nando’s. We: • Build beautiful, simple and inclusive digital experiences used by thousands of Nandocas, • Create and maintain internal web and mobile apps, design systems, APIs, and platform services, • Act as champions of engineering excellence, good design, accessibility and AI-assisted development, • Work closely with People, Ops, Product and Design to solve real-world problems in our restaurants, • Bring Nando’s values alive in our delivery: Pride in our craft, Passion for learning, working as a Family, acting with Integrity, and keeping things Fun What You’ll Be Working On Your first major mission: Helping to implement Nossa Casa / Nandoca Mobile You’ll contribute to the codebase across React Native (web), React (web), APIs, and shared design systems. Alongside the team, you’ll work with: • Node.js / Express web API development, • OpenAPI specification–driven development (AI-assisted), • Storybook design system development and component libraries, • Figma designs → interactive UI components, • Docker containerisation and container-based deployment, • Terraform IaC for deploying APIs into Google Cloud Platform (GCP), • Claude CLI and other AI developer tooling (bonus experience), • Modern engineering practices, with strong mentorship and peer support This is a safe space to learn. You don’t need to know all of these today just bring curiosity and a hunger to grow. What We’re Looking For Essential Experience • 3+ years continuous experience with React Native, • 2+ years continuous experience with React, • Comfortable collaborating with designers, PMs, and engineers, • A proactive, curious engineer who takes pride in quality, • Someone who brings passion and positivity to their craft, • A team player who supports others and fosters family spirit, • High integrity, empathy, and respect for diverse perspectives, • A willingness to experiment, learn, and have fun doing it Nice to Have (or Willing to Learn) • Node.js / Express API development, • OpenAPI-driven design, • Storybook + Figma pipelines, • Docker, • Terraform, • Deploying APIs to GCP, • Claude CLI workflows (Atlassian, Figma, Storybook, Context7), • AI-assisted workflows and spec-driven development Why Nando’s? • A people-first culture grounded in warmth and belonging, • Inclusive engineering teams where your voice is heard, • Psychological safety, mentorship, and room to grow, • Technical ownership with the support to build confidence, • Time to learn new skills across design, dev, and cloud, • Real impact your work improves daily life for thousands of Nandocas, • Flexible hybrid working, • And of course… free Nando’s Here, you’re not just building software you’re helping build the digital home for the entire Nando’s family. If This Sounds Like You… We’d love to hear from you. If you don’t tick every single box but feel excited by the mission and aligned with our values, we encourage you to apply. Passion and potential go a long way at Nando’s.

Full Stack Developer - London - Energy Trading - 140k RJC is working a Full Stack Developer role for a global energy trading company based in London. Working as part of the Global Analytics team within the Front Office, they are looking for someone to collaborate directly with the business and develop analytics applications utilised by commodity trading desks. The role demands expertise in energy market data, developing infrastructural components, and implementing full stack technology for commodities analytics. The ideal Full Stack Developer will have: • Minimum 5+ years of experience working with C# and related .NET technologies, • Strong proficiency with front end development (preferably React), async patterns, and DOM manipulation, • Ability to interact with stakeholders to progress design and satisfy requests, • Experience operating and supporting bespoke trading platforms, • Experience working in an agile scrum development model Apply with an up to date CV below to set up an initial call.

Principal Software Engineer | Front End (React) | London, Hybrid Our client is a forward-thinking global firm redefining the future of finance through technology. They are looking for a Principal React Engineer who can set the technical direction for the front-end, champion best practices, and still enjoy being hands-on. Someone who obsesses over clean design, performance and scalability, and is comfortable leading from the front. The Opportunity You’ll be the go-to technical leader for front-end engineering within a cross-functional product team, shaping the architecture, tooling and standards for user-facing applications used by investment professionals across the business. The team is currently re-architecting its stack to be fully cloud-native (AWS), with React and TypeScript on the front end and Python-based services on the backend. You’ll work in a culture that values engineering excellence – TDD, clean code, pair programming, thoughtful code reviews – and your voice will carry weight in how the platform evolves. What You’ll Do • Lead the design and development of complex, high-performance React applications using React, TypeScript and modern front-end libraries., • Define and drive front-end architecture, standards and best practices, ensuring quality, consistency and reusability across products., • Collaborate closely with Backend, UX and Product to refine user journeys, ensuring interfaces are intuitive, performant and accessible., • Partner with portfolio managers, researchers and analysts to translate complex domain problems into elegant, user-focused solutions., • Mentor and coach other engineers, raising the bar on code quality, testing and delivery discipline., • Contribute to the evolution of a cloud-native architecture on AWS, working closely with backend and platform teams. 📍 Location: London City, hybrid working (3 days per week in the office) 💷 Package: Highly competitive base + bonus + benefits What You’ll Bring • Significant experience building large-scale React and TypeScript applications, ideally in complex or data-heavy domains., • Experience within Financial Services environments is highly advantageous e.g. Investment banking, trading, asset management, etc., • Deep knowledge of React, TypeScript, state management (e.g. Redux or similar), Apollo Client and GraphQL/REST APIs., • Experience in cloud-native environments (AWS or Azure), and how front-end and backend services fit together in distributed systems., • Strong understanding of front-end performance optimisation, including data streaming (WebSockets, server-sent events, chunked responses)., • Solid experience with testing strategies (unit, integration, E2E) – Playwright, Cypress or similar tools a plus., • Bonus points for experience with design systems (e.g. Material UI) and data visualisation libraries. About You • A hands-on technical leader who’s comfortable making architectural decisions and backing them up with code., • Confident owning front-end initiatives end-to-end, from discovery and design through to delivery and optimisation., • Collaborative and pragmatic - able to work across product, UX and engineering teams without ego., • Curious, always learning, and keen to improve both the codebase and the way the team works. If you are interested in this Principal Software Engineering Role, please respond to this advert directly with your updated CV or email it to

Senior JavaScript Developer 3-4 days p/week in London Paying up to £80k Senior JavaScript Developer – Would you like the opportunity to work for a fast growing start-up who are on a mission to create an AI tutor to help learners? They’re currently building an all-in-one platform for aiding students to achieve their full potential. AI is at the heart of everything they do, from their products to the way they work as a team. As a Senior JavaScript Developer, you will be joining a small team, where you will build, scale, and maintain high-quality fullstack applications while collaborating closely with product and design to deliver end-to-end features. The ideal candidate should have a deep engineering expertise and wide curiosity across product, design, and AI. Key requirements: • 5+ years of fullstack development experience., • Strong skills in React, TypeScript, • Node, • AWS, • Experience integrating AI/ML via APIs If you’re a Senior JavaScript Developer who enjoys the idea of working in an EdTech Start-up, please apply.

Senior Product Engineer (Backend) – AI-Native SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £130,000 + equity Typescript/Node, React, GCP/AWS Senior Product Engineer - We’re working with a rapidly scaling AI-native SaaS company who raised an impressive Series B round in 2025. Their platform is redefining the sector, and with revenues tripling in the last year to over $12m ARR, they’re now expanding their Engineering team to match the ambition of their product and customers. The Senior Product Engineer As a Senior Product Engineer, you’ll be at the heart of designing, building, and scaling backend systems that power a complex, AI-driven product. You’ll work across the stack with a focus on backend engineering, solving challenging technical problems while shaping the product experience for thousands of users. What will the Senior Product Engineer do? • Contribute across the stack (Node.js/Typescript, GCP), with a strong focus on backend systems, • Design scalable architectures and APIs to support rapid product growth, • Lead end-to-end feature development, from concept through to release, • Champion engineering best practices and bring new ideas to the table, • Collaborate closely with Product and Design teams to build seamless user experiences What will the Senior Product Engineer bring? • Strong backend development expertise with Node.js and Typescript, • Experience designing secure, scalable backend systems (authentication, data pipelines, APIs), • Familiarity with modern cloud infrastructure (GCP or AWS), • Ability to communicate technical ideas clearly and influence team direction, • A passion for building high-quality products that customers love This is an amazing opportunity for an Senior Product Engineer to join a fast-growing scale-up as they take the next leap in their journey. Please reply with your CV of call Simon for a chat. Senior Product Engineer (Backend) – AI-SaaS Platform | Tripled ARR in 12 months Remote-first (UK) with hybrid London office option Up to £130,000 + equity Typescript/Node, React, GCP/AWS