Full stack engineer jobs in London - Page 4Crear alertas

Mid-Level Developer (Solo Lead) Level: Mid-Level Developer - £55,000 (full-time) with flexibility for reduced hours or project-based delivery Location: Remote | Flexible Function: Software Development | Full Stack | Product Engineering Industry: HR Technology | Data & Analytics | Purpose-Driven SaaS Join an organically funded HR technology startup focused on pay gap reporting, salary data analysis, and amplifying employee voice through data. Our client is building a platform centred on equity, transparency, and accountability, and is now hiring a mid-level developer to take ownership of day-to-day engineering alongside the two co-founders. About the Role As a Mid-Level Developer, you’ll work directly with the two co-founders of a purpose-driven HR technology startup, acting as the sole engineer on the platform. You’ll contribute across front end and back end development, building and evolving features that support pay gap reporting, salary analysis, and employee voice. The role offers a high degree of flexibility around working patterns and a clear opportunity to broaden your full-stack capability over time. What You’ll Be Doing • Building and extending product features primarily using JavaScript and CSS, with a focus on maintainable, production-ready code., • Working across a full-stack, low-code architecture using Nordcraft on the front end and Xano on the back end, learning these platforms as needed., • Developing and maintaining APIs to integrate the platform with external HR systems such as Workday and other third-party tools., • Implementing pay gap reporting functionality, including ethnicity and disability reporting, and supporting differing regulatory requirements across jurisdictions., • Integrating AI-driven reporting and commentary features through external services and platform integrations, rather than developing AI models directly., • Improving the robustness of the codebase by introducing or enhancing database backups, regression and unit testing, and applying appropriate web security practices. Ideal Background • Mid-level experience as a JavaScript developer, with exposure to front end and back end development., • Willingness to work full stack and learn new platforms or tools, even if you have not used Nordcraft or Xano previously., • Solid understanding of core web development concepts, including security, performance, and API design., • Comfortable working as the sole engineer on a product while collaborating closely and communicating regularly with non-technical co-founders., • Experience working remotely or in flexible working arrangements, with a reliable and organised approach to delivery., • Able to provide references that speak to reliability and experience working independently or on contract-based engagements. What You’ll Receive • Salary of £55,000 for a full-time role, with openness to reduced hours, three-day weeks, or project-based delivery., • Fully remote working by default, with flexibility around hours and an outcomes-focused approach., • A supportive, founder-led environment with an emphasis on equity, fairness, and ethical use of data., • Direct exposure to product decision-making and increasing technical ownership as the platform evolves., • The opportunity to strengthen full-stack development skills in a real production environment. Who Should Apply This role suits a mid-level developer who wants ownership, flexibility, and closer involvement in product development than is typical in larger teams. If you enjoy working across the stack, communicating directly with founders, and contributing to a product with a clear social purpose, this role is likely to be a strong fit.

About Sownd Affects Sownd Affects is developing the world's first Audio Inclusivity Certification Standard. Built on the insight that 30 percent of the population are noise sensitive, we are on a mission to change how people socialise and to inspire venues to build acoustically enhanced spaces that make socialising more enjoyable for everyone, especially the noise sensitive. Our work combines acoustics expertise, behavioural insight and modern software systems to create a new global standard for sound in social spaces. About the Role We are seeking a technically skilled and pragmatic Full Stack Developer to architect and implement the next major phase of our internal operations system. This Back Office platform is critical to the rollout of our audio inclusivity certification and must be reliable, scalable and easy for our team to use. This is a project based contract. We will define a clear set of deliverables and agree a fixed project fee. You will work on your own schedule, with the expectation of being available for at least 2 hours between 10am and 4pm from Monday to Friday for questions or unblockers. Once delivered, there is likely to be ongoing maintenance and iteration work as the product grows. About the Team You Will Work With You will work directly with the founders and our Head of Product. We are a small, fast moving team of experienced tech entrepreneurs who work hands on and are passionate about using AI tools to increase speed and quality across the business. You will also have access to a CTO for occasional guidance, though you will own the build of this Back Office system. This is a high trust, low bureaucracy environment where clarity, autonomy and fast decision making are valued. Key Responsibilities • Architect and implement a Back Office web application using React Admin, • Integrate the Back Office with our main website and ensure reliable backend logic and data flow, • Set up and manage a Postgres database hosted on Supabase for venues, clients, acoustic measurements and certification data, • Define and document a clear and scalable data model that supports all certification and reporting requirements, • Build workflows for ingesting and transforming acoustic engineer reports in PDF or structured formats, • Implement an easy to use data upload mechanism for ongoing ingestion of client information and acoustic measurements, • Implement QR code generation linked to public certification pages, • Ensure the architecture is clean, maintainable and aligned with the required tech stack, • Produce clear documentation and a full handover so the internal team can operate the system confidently, • TypeScript, • Node.js, • Next.js, • React Admin, • PostgreSQL, • Prisma ORM, • Supabase, • TailwindCSS, • Monorepos using tools like TurboRepo or NxRequired Skills and Experience, • Proficiency with TypeScript, Node.js and Next.js, • Experience with relational databases and Prisma ORM, • Experience integrating APIs and building data transformation workflows, • Comfortable working with admin tooling and Back Office style systems, • Ability to work independently with clear communication and fast problem solving, • Pragmatic and comfortable operating in a startup environmentNice to Have, • Experience working with Supabase, • QR code generation and public routing logic, • Knowledge of hosting platforms like Vercel or AWS, • Experience in digital certification, measurement workflows or IoT style integrations, • Experience building admin tools using React Admin or similar Interview Process • Send your CV to careers(at)sownd.co.uk and a short message telling us why you want to work with us and summarising your experience with the listed tech stack, • Short interview, • Project based contract with an agreed fixed fee, • Work on your own schedule with at least 2 hours available between 10am and 4pm, Monday to Friday, • Likely ongoing work as the system grows, • Immediate start and rapid delivery expected, • Remote first, • No recruiters, please

Company Overview We are building CareForAll AI, a UK-based HealthTech SaaS platform focused on AI-powered care management for care homes, home care providers, and supported living services. This is an early-stage startup backed by EasySoft AI Systems, with a clear roadmap from MVP to commercial rollout. Role Overview We are looking for a Founding AI / Full-Stack Developer to join the core founding team. This is an equity-based opportunity (no fixed salary at the initial stage). The role can be part-time or flexible, with the potential to transition into a paid leadership role as the business scales. You will work directly with the founder on architecture, product development, and AI-driven features. Key Responsibilities • Build and maintain backend and frontend components, • Support AI-enabled workflows and automation, • Work on scalable cloud architecture, • Contribute to product decisions and MVP launch What We’re Looking For • Strong interest in startups and ownership, • Experience in full-stack or backend development, • Willingness to grow with the company long-term, • Passion for AI, HealthTech, or SaaS platforms What We Offer • Meaningful equity based on contribution, • Founding team status, • Flexible working arrangement, • Long-term growth and leadership opportunity

I am working with a really ambitious startup looking to revolutionise the ways brands and sports people connect. They have the first iteration of their product built out, but have three verticals they want to improve. There is a fantastic technical mind already in the business who you would be reporting into and they plan to be scaling dramatically over the coming months & years. They are looking for a brilliant, ambitious Engineer who wants to progress quickly. They only require 3 years of experience but they see this role as one which could become a potential Head of Engineering role down the line. The right person will have had experience working in startups or working on greenfield products in SaaS environments. There tech stack is JavaScript based, with React/Node expertiese being required, alongside ideally some experience deploying in iOS & Android. They use AWS in cloud as well which would be a plus Please apply here if interested!

Senior Full Stack Engineer Remote (UK) | Full time London office available for optional in person collaboration We’re looking for an experienced Senior Full Stack Engineer to join a small, highly skilled team building a next generation Financial Services Regulatory Compliance platform. This is a hands on role where you’ll work across the stack, leading frontend development with React and Next.js while also contributing to a Python (FastAPI) backend that powers AI driven insights and data heavy systems. You’ll have real ownership, influence technical direction, and help shape a platform used to simplify complex regulatory information. What you’ll be doing • Leading the development of responsive, high performance frontend features using React and Next.js, • Working closely with product, design, and data teams to create intuitive user experiences, • Building and maintaining scalable APIs and backend services in Python using FastAPI, • Contributing to architectural decisions as the platform evolves and transitions from Azure to GCP, • Ensuring strong integration between frontend and backend with a focus on performance and maintainability, • Taking ownership of features from design through to deployment What we’re looking for • Strong experience building production ready applications with React and Next.js, • Confident use of JavaScript and TypeScript, with a focus on performance and modern React patterns, • Proven experience developing APIs or backend services with Python and FastAPI, • Comfortable working across the full stack and switching between frontend and backend problem solving, • Experience with MongoDB, Redis, and cloud platforms such as Azure, GCP, or AWS, • Experience working with data heavy or AI driven products is a bonus, • A proactive engineer who enjoys working in a small, fast moving team Tech stack • Frontend: React, Next.js, TypeScript, Tailwind CSS, • Backend: Python (FastAPI), • Database: MongoDB, • Caching & queueing: Redis, • Cloud: Azure (transitioning to GCP, AWS possible in future) What you’ll get • Flexible remote working with optional access to a London office, • The chance to work on a technically challenging, AI powered platform with real world impact, • A collaborative environment with low bureaucracy and genuine ownership over your work

I’m working with a fast-growing, product-led company in the cybersecurity space that’s looking to hire a Senior Full Stack Engineer to join their engineering team. About the role This is a senior, hands-on role where you’ll be building and owning features across the full stack. You’ll work closely with product and design, help solve complex technical problems, and play a key role in improving engineering standards and ways of working. What you’ll be doing • Building and maintaining backend and frontend features end to end, • Translating product and design requirements into scalable, high-quality solutions, • Collaborating closely with product managers, designers, and other engineers, • Tackling complex challenges around scalability, performance, and reliability, • 7+ years of experience as a full-stack engineer, • Experience in startups or high-growth scale-ups, • Experience building enterprise SaaS products (background in cybersecurity, threat intelligence, or security tooling is a strong plus), • Strong backend experience with TypeScript and NestJS, including REST and GraphQL APIs, • Experience designing and building complex, data-heavy UIs using React (Next.js and Chakra UI are a plus), • Hands-on experience with relational (MySQL) and NoSQL databases, • Strong debugging, troubleshooting, and performance optimisation skills, • Take ownership and enjoy driving work forward, • Care about quality, performance, and continuous improvement Tech you’ll work with • Backend: TypeScript, NestJS, Sequelize, REST APIs, GraphQL, MySQL, NoSQL, Kafka, • Frontend: React, Next.js, TypeScript, Chakra UI, React Query, GraphQL, • Experience with AWS and Kubernetes, • Familiarity with workflow tools like XState or Argo Workflows, • A solid understanding of infrastructure and networking fundamentals

Full Stack Engineer (Node.js/Go) - Remote (UK based) - Up to £55k - Permanent Uneek is proud to be partnering with a longstanding client who are looking for a Full Stack Engineer to join them. This position focuses on developing software and shaping the digital infrastructure behind a new product line. What You'll Be Doing: • Design and implement backend services using Node.js and Golang., • Create modern, responsive user interfaces with contemporary frontend frameworks., • Develop scalable APIs and cloud-oriented services that communicate with distributed connected devices., • Collaborate with cross-functional teams spanning product, hardware, and mobile disciplines to deliver new system features. What They're Looking For: • 3+ years full-stack development experience., • Strong understanding of Node.js and Golang., • Proficiency with modern front-end frameworks (preferably Svelte), • Experience with microservices. What’s On Offer: • Salary: Up to £55,000, • Benefits: Comprehensive package, • Location: Remote

ABOUT US ___, part of Capgemini, tackles the hardest work in data for the world’s largest organizations. We combine intelligent software with deep data expertise to help the Fortune2000 tackle complex data challenges and drive measurable business outcomes with business-ready data. Syniti’s Data First strategy transforms data from an afterthought into a strategic asset—unlocking insights, reducing risk, and fueling growth. With over 5,000 successful projects, we support the full data lifecycle through a unified platform for migration, quality, replication, matching, master data management, analytics, governance, and strategy. Operating globally across industries, Syniti’s award-winning software, expert consultants give enterprises a unique edge in managing and maximizing their data. Syniti’s cloud-native platform sets new standards in enterprise data management, combining powerful SaaS solutions with deep domain expertise. Designed for agility and scale, our technology helps customers accelerate digital transformation, drive innovation, and make confident decisions with trusted data. Every product enhancement is built to solve real business challenges—empowering organizations to unlock value from their data faster and more effectively. THE ROLE The Principal SRE – Azure Specialist will drive the design and implementation of automation, observability, and operational excellence within Syniti’s Microsoft Azure-hosted runtime environments. This role will focus on architecting and deploying globally scalable, regionally compliant (Cyber Essentials+, SecNumCloud), zero trust architectures. This engineer will lead the technical project to port Syniti’s SaaS architecture and services from AWS to Azure, ensuring platform consistency, operational parity, and regulatory alignment. They will serve as a cross-functional technical leader, developing resilient IaC frameworks, secure deployment models, and integrating Azure-native services with Kubernetes (AKS) and Syniti’s platform stack. WHAT YOU WILL DO • Design and maintain Azure-hosted environments supporting the Syniti SaaS platform across multiple global regions., • Build reusable IaC modules in Terraform for network, compute, and managed PaaS services., • Integrate Azure-native logging, security, and cost optimization with observability pipelines., • Lead incident resolution and proactive failure domain analysis within Azure-hosted regions., • Develop secure service-to-service communication standards leveraging Azure AD workload identity and pod identities., • Collaborate with Compliance and Security to meet UK, EU, and French regional regulatory requirements., • Drive self-healing systems using automation to reduce toil and human intervention., • Support cloud region expansion and infrastructure builds via GitOps and pipeline automation. WHAT IT TAKES • Self-starter with deep understanding of hybrid cloud patterns and Azure ecosystems., • Ability to thrive in a high-stakes, distributed operations environment with mission-critical SaaS systems., • Strong communication and cross-regional collaboration capabilities., • Deep technical expertise across Azure infrastructure and platform services., • Comfort working with engineers across DevOps, Security, and Product teams to deliver shared outcomes., • 15+ years of experience in infrastructure, cloud, or SRE roles., • 5+ years designing or operating in Azure environments including AKS, Storage, VNets, Private Link, Azure Monitor., • 3+ years proficiency with GitOps and declarative infrastructure patterns using tools like Terraform, Bicep, or Pulumi., • 3+ years implementing or maintaining CI/CD pipelines., • 2+ years of Software Development experience, • Advanced scripting skills in Bash, Python, or Go., • Strong understanding of managed identity, Azure AD, and Kubernetes identity integrations., • Think Big - Be courageous and bold. Aspire to greatness. Relentlessly pursue market innovation. Set the standard by which others follow. Create solutions that have a meaningful impact. Solve the challenges our customers don’t know they have., • Be Curious - Be a lifelong learner. Seek out new ideas to serve customers. Understand our competition and the world. Be permanently dissatisfied with the status quo. Challenge preconceptions. Focus on the future rather than yesterday., • Take Action - Be the first. Don’t wait. Take accountability. Inspire others by doing. Fail fast and learn from mistakes. Make a difference every day., • Stronger Together - Respect, trust and look out for each other. Celebrate diverse perspectives. Listen. Build connections and belonging. Act with integrity. Give back. One Syniti family. WHAT WE OFFER • Trust that you are proficient at what you do. At Syniti, you will find a supportive environment and access to learning tools, but micromanagement is not our thing., • Growth. We are growing rapidly and steadily solving the biggest challenges enterprise companies are faced with today. There was never a better time to join and grow with us. Most importantly, you will have the chance to shape our journey and share in our success story., • Support. We all rely on each other and enable each other to be successful. You won’t stand alone., • Curiosity and genuine interest in you. We all have our different stories, all equally fascinating, with each depicting a different journey, and we want to hear them all., • Recognition. We are the sum of individual achievements, and we always take the time to celebrate them., • An open organisation. Hierarchies are not our thing, and access is something we make sure of across the board. We are a family where everyone is just as important, everyone’s work is seen, and ideas are valued. OUR COMMITMENT TO INCLUSION At Syniti, we’re committed to creating a respectful, inclusive, and fair workplace where everyone belongs and thrives. We believe that diverse perspectives make us stronger — and we value the unique backgrounds, experiences, and voices each person brings to our team. We welcome applicants based on their skills and potential, and we’re dedicated to ensuring equal opportunities for all, regardless of personal background. If you need accommodations during the hiring process, please let us know — we’re here to support you.

Full Stack Engineer (Angular + Node.js) Shortlisting for interviews in January 2026. Details at a Glance · Position: Full Stack Engineer (Angular + Node.js) · Location: Remote (UK-based) with occasional team meetups in Manchester/London · Hours: 40 hours/week · Language: English (fluent) · Salary: starting from £45,000 depending on experience Overview At MYT Shutters, we are on a mission to expand and strengthen our software engineering team. Our company develops in-house advanced online ordering and automated production systems that are essential for our day-to-day business operations. These cutting-edge systems allow us to efficiently process customer orders and optimise the planning and manufacturing of our products. Company Background MYT Shutters is a rapidly expanding shutter manufacturer delivering high-quality window shutters worldwide. We run our own factory in the South of China and regularly develop innovative new products. We are a fast-growing, international team of dedicated professionals based around the world, with offices in Australia, The Netherlands, the United Kingdom, and China. About the Role We're hiring a Full Stack Engineer to help build and scale the systems behind our global manufacturing and logistics platform. You’ll work with Angular on the front end and Node.js / GraphQL (Apollo) on the back end, with PostgreSQL as the primary data store. The role involves working on both new features and core system components - encompassing business logic, data modelling, and database design - to ensure our systems remain robust, consistent, and maintainable. This is a hands-on engineering position suited to someone who understands how data and logic flow through a system, writes clean and well-structured code, and enjoys solving complex, real-world operational challenges. Tech Stack · Frontend: Angular, RxJS, TypeScript · Backend: Node.js, GraphQL, PostgreSQL, Apollo Server · Infra: AWS · Tooling: Nx monorepo, Playwright (E2E), GitHub Actions, CI/CD, ephemeral environments What You’ll Do · Build and maintain full-stack features spanning frontend, backend, and database layers. · Develop and maintain business logic, API endpoints, and data access layers. · Design and optimise relational database schemas and SQL queries. · Work with the team to refine requirements, clarify tickets, and ensure accurate implementation of functionality · Write clean, testable, and maintainable code · Integrate with and enhance GraphQL APIs and backend services · Contribute to GraphQL schema design and resolver implementation · Collaborate on improving build pipelines, CI/CD processes, and internal tooling · Participate in peer code reviews and uphold engineering quality standards · Work within an engineering culture focused on correctness, maintainability, and long-term reliability What We’re Looking ForRequired: · 2+ years software development experience · Commercial experience with Angular (v10+) · Strong proficiency in TypeScript and JavaScript · Familiar with RxJS and reactive programming concepts · Experience working with APIs (REST or GraphQL) · Some Node.js back-end experience (or willingness to grow in that area) · Good understanding of SOLID principles and clean architecture · Proficient with Git and modern source control workflows · Strong debugging and problem-solving ability · Clear communicator in a distributed, remote team · Ability to take ownership of features from design through to delivery Bonus: · Practical experience with GraphQL (Apollo, server or client) · PostgreSQL or relational database experience · Familiarity with AWS (RDS, S3, ECS/Fargate, etc.) · Experience with Nx monorepos and modular architectures · Testing experience with Playwright, Jest, or similar · Exposure to ERP, manufacturing, or production systems · Experience with CI/CD pipelines and containerised deployments Why Join Us? If you're excited by a clean stack, real-world problems, and a practical, technical team — we’d love to hear from you. What We Offer · A market competitive salary based on experience. · Professional development and training opportunities. · Work remotely. · Working in an international work environment, engaging in work relationships with colleagues across the globe. · 25 working days paid annual leave for 40 hours a week.

📍 Remote | Full-Time 👋 About Us Medify is a mission-driven EdTech company widening access to medicine and healthcare careers. Our platform supports thousands of learners preparing for high-stakes admissions exams, and our engineering team plays a critical role in delivering reliable, scalable, and high-quality learning experiences. Medify Engineering is a team of ten engineers across two teams, and everyone is hands on, including engineering management and the CTO, which helps us keep our processes practical and engineer-friendly. We work to minimise meetings: engineers typically have a 15-minute daily standup for in-progress updates and quick alignment with Product, plus (per two-week sprint) a one-hour refinement with Product, a one-hour planning session with engineering, and a 30-minute company-wide demo. Operational work like deployments, bug triage, and on-call is handled on a rotation, with each person covering one week roughly every two months. 🎯 The Role As a Senior Full Stack Engineer at Medify, you will play a pivotal role in shaping our platform and technical direction. Working closely with the CTO and fellow engineers, you’ll be involved across the full software development lifecycle - from ideation and design through to development, testing, and deployment. This is a fully remote, home-based role, suited to someone who enjoys ownership, collaboration and solving complex problems in a fast-moving environment. Tech stack: Ruby on Rails (backend), frontend transitioning from Ember to React, Postgres database, hosted on AWS. 🧩 Key Responsibilities • Design and develop high-quality, scalable, and efficient software solutions using modern best practices, • Collaborate closely with Product and Design teams to understand requirements and provide technical input, • Contribute to architectural decisions and overall system design, • Conduct code reviews and provide constructive feedback to maintain high code quality, • Troubleshoot, diagnose, and resolve software issues efficiently, • Develop and maintain automated tests to ensure performance and reliability, • Mentor junior engineers and share technical knowledge and best practices, • Participate in agile planning, backlog management, and delivery updates, • Stay up to date with emerging technologies and software development best practices, • Support recruitment by contributing to interviews and selection decisions 🧠 Core Competencies • Excellent problem-solving and analytical skills, • Strong communication and collaboration skills, • Ability to thrive in a fast-paced, agile environment, • Leadership and mentoring capability, • High attention to detail and quality 🎓 Qualifications • BS/MS degree in Computer Science, Engineering, or a related field is desirable but not required 🛠️ Experience & Knowledge • 5+ years’ experience in software development, • Extensive experience with modern programming languages and frameworks, • (Ruby on Rails and React highly desirable), • Proven track record of building scalable, efficient software systems, • Strong understanding of the software development lifecycle and agile methodologies, • Experience working with cross-functional teams (Product, Design, Engineering), • Experience recruiting and mentoring junior engineers is a plus 💡 Skills • Proficiency in modern programming languages and frameworks, • Strong grasp of data structures, algorithms, and software design principles, • Experience with databases, APIs, and networking, • Knowledge of software testing methodologies and tools, • Familiarity with DevOps practices and tooling, • Ability to learn and adapt quickly to new technologies, • Clear, confident written and verbal communication ✅ What We Offer • Competitive salary: £70,000–£85,000 depending on experience, • Annual leave: 25 days, rising to 28 days over three years, • Fully remote, flexible working, • Pension scheme, • Professional development sponsorship and matched charity funding, • Private health and dental care after one year of employment

Title: Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure, AWS, AI, LLM's, RAG Industry: AI Consultancy The Role We’re looking for talented engineers to join our customer-facing AI practice, from Senior Forward Deployed Engineers through to Principal-level AI technical leaders. You’ll work directly with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This is a role for engineers who: • Enjoy building real software that makes a difference, • Are passionate about AI and its practical application, • Thrive at the intersection of technical leadership and client engagement What You’ll Do Customer-Facing Leadership • Lead discovery workshops with technical and business stakeholders, • Represent the organisation’s technical capabilities in high-stakes client meetings, • Build and iterate working AI prototypes quickly, • Architect scalable, maintainable systems from prototype to production, • Guide engineers through technical delivery, code reviews, and architectural discussions, • Elevate team capabilities through knowledge sharing, mentoring, and internal workshops, • Implement AI solutions leveraging LLMs, foundation models, and retrieval-augmented generation (RAG) systems, • Design evaluation frameworks addressing bias, hallucination detection, and business impact, • Explore novel AI applications while integrating traditional ML techniques where appropriate Who We’re Looking For For Senior Engineers: • 5–8+ years building robust, scalable software systems, • Full-stack development capability across modern technologies, • Client-facing experience or technical consulting skills, • 8+ years delivering complex, enterprise-grade software, • Proven AI/ML expertise with production deployment experience, • Advanced knowledge of transformer architectures, foundation models, and prompt engineering, • Senior stakeholder engagement experience and ability to lead high-level AI strategy

Our client an industry-leading digital innovator who are scaling their mobile engineering capabilities, and searching for a Senior React Native Engineer who can take true ownership of end-to-end mobile delivery. If you thrive in fast-paced environments, love building exceptional user experiences, and want to play a pivotal role in a high-performing tech team, we’d love to hear from you. What You’ll Be Doing • Taking full responsibility for designing, developing and shipping high-quality mobile applications across both iOS and Android., • Bringing deep knowledge of React Native to architect clean, scalable solutions., • Leveraging modern commerce ecosystems, including headless commerce platforms., • Working confidently with state management tools like Redux or similar patterns., • Integrating and consuming GraphQL and RESTful services to power rich user experiences., • Rapidly shaping UI concepts through prototypes and iterative design., • Ensuring reliability through comprehensive unit testing and a strong focus on performance optimisation., • Enhancing, maintaining and supporting existing features with robust monitoring and alerting., • Collaborating with cross-functional teams in a matrix environment and guiding development activities through influence and technical leadership. What You Bring • 5+ years’ experience delivering production mobile apps for iOS and Android., • Strong expertise with iOS/Android SDKs, remote data handling (REST/JSON) and third-party integrations., • Solid understanding of mobile architecture, trends and best practices across the entire development lifecycle., • Clear, confident communication skills — written, verbal and interpersonal., • A proactive, self-driven mindset with the ability to juggle multiple priorities., • Experience in multicultural, distributed teams with a truly collaborative attitude., • A hands-on, problem-solving approach paired with genuine accountability. Tech Stack You'll Work With • Required: React Native, JavaScript, JS frameworks, Redux, GraphQL, AEM, Storybook, Chromatic, TypeScript, UI frameworks, • Nice to Have: Next.js, Angular, caching technologies, Adobe Experience Manager Why This Role? This is an opportunity to lead meaningful engineering work, influence technical direction, and contribute to applications used by thousands of customers. You’ll join a team that values innovation, autonomy and high standards. If you’d like me to tailor the tone (more corporate, more energetic, more concise) or customise it for a specific company or recruiter brand, feel free to ask!

Join us in redefining the creator economy with AI Fanvue is the fastest-growing creator monetisation platform in the creator economy. We are the leading AI-powered creator-first platform, designed to empower creators worldwide to directly monetise their audience. We’re on a mission to redefine the creator economy by empowering creators to connect, share, and earn more efficiently. At Fanvue, we don’t see financial integrations as just plumbing - we see it as core to the product experience and a growth engine for creators. Every checkout flow, every payout experience, every fraud or financial tool we build is central to delivering trust, speed, and scale for our global community. This role has a fundamental impact on how the business will scale, managing millions of transactions in and out. 🎯 The Role As we continue to scale aggressively, we’re looking for a world-class Senior Software Engineer - FinTech Integrations to own and drive our checkout and payouts product stream, handling well over $100m+ per year. This is a hands-on role for someone who thrives on building complex systems, pushing technical boundaries, and shaping the financial backbone of a high-growth platform. As the platform continues to scale, this role is for someone who’s ambitious to scale their knowledge and experience accordingly, progressing significantly as a Principal IC or in Management. 🚀 What You’ll Do • Architecting Scalable Financial Systems: Leading the strategic design and implementation of robust financial integrations, aligning with the company’s vision of innovation and operational excellence., • Own the Checkout & Payout Experience: Build and deliver frictionless, secure, and high-converting payment and payout flows that scale globally., • Build & Evolve Financial Tooling: Design and implement fraud prevention systems, reconciliation tools, reporting dashboards, and internal admin experiences that directly influence how payments work across Fanvue., • Scale Integrations with Third Parties: Lead the adoption and optimisation of financial APIs, alternative payment methods (APMs), and payout providers, ensuring resilience, auditability, and user trust., • Developer Experience Leadership: Constantly improve the developer experience of the codebase, ensuring that financial systems are maintainable, testable, and scalable., • Cross-Functional Collaboration: Partner with product, design, compliance, legal, and operations to align financial systems with business priorities and regulatory requirements., • Quality & Velocity: Deliver high-quality, tested, and reliable systems at the speed of Fanvue’s growth. 👀 Who You Are Must-haves: • Technical Excellence: Expert knowledge in TypeScript, React, Node.js, and strong SQL or Postgres skills., • Payments Domain Expertise: You’ve built or scaled high-volume payment and payout systems (hundreds of thousands to millions of transactions, ideally across multiple geographies)., • System Thinker: You’re comfortable designing and operating in highly complex, interdependent systems with financial, compliance, and user experience constraints., • Hands-On Engineer: A senior IC who thrives on writing code, solving technical challenges, and pushing systems forward, delivering low-latency, fault-tolerant checkout flows with resilient retry, fallback, and routing logic., • Collaborator & Communicator: Skilled at managing stakeholders (internal and external), explaining trade-offs clearly, and working cross-functionally with transparency., • High-Quality at High-Speed: You move fast without compromising on quality, rigor, or security., • Marketplace/Platform Context (ideal): Prior experience in a marketplace, creator economy platform, or fintech environment where payments and payouts are core to growth and trust. 🌍 Why Join Fanvue? • Shape the financial backbone of the fastest-growing creator monetisation platform., • Competitive salary, equity, and benefits package, • Work in a stream that directly impacts trust, conversion, and revenue at a global scale., • Join a talented, mission-driven team dedicated to empowering creators worldwide., • A culture that values innovation, ownership, transparency, and speed., • Benefits: Unlimited holiday, hybrid/remote flexibility, budget for growth & wellbeing, flexible working hours, and recognition as one of The Sunday Times Best Places to Work 2025.

About Us: OpenSolar was founded in 2017 by global pioneers in solar software - Andrew Birch and Adam Pryor. OpenSolar exists to accelerate the adoption of solar and renewable energy globally. We provide the world's clean energy professionals with an end-to-end digital design, sales and management software to grow their businesses, free of charge. OpenSolar is driven by its mission to accelerate the adoption of solar for a world powered by sunshine by 2050. We stay focused on our mission by obsessing over the experience of our end users, being open and honest, solving problems through careful and deliberate design, and by keeping things simple. OpenSolar is a truly global organisation with our team spread across 12 countries and our user base spread over 185+ countries. Find out more about our world class crew here: ___. At OpenSolar, we are dedicated to cultivating a workplace that celebrates diversity and promotes inclusivity. Our goal is to build a team that is reflective of the communities we serve, recognising that diversity brings strength and richness to our organisation. We believe that everyone should feel empowered to bring their authentic selves to work and we are committed to creating an environment where all employees are valued, respected, and supported. We actively seek to attract and retain a talented workforce that represents the breadth of our society. We provide equal opportunities for everyone to thrive and advance in their careers, enabling them to achieve their full potential. This is your opportunity to be part of the clean energy movement, creating a lasting impact on the world. All while being part of a passionate, fun, and highly collaborative team. The Role: The Principal Software Engineer (Full Stack) role is a full-time permanent position located in the United Kingdom and is a remote working role. You will have the opportunity to be part of a global high-performing dynamic software team, doing what you do best. The role is focused on designing and building the best solutions for our users in over 185 countries, whilst maintaining best practices in software development. What you’ll be doing: • Design and implement robust, scalable, and secure full-stack solutions using React / Python / Django / MySQL., • Own architecture decisions for complex systems, ensuring long-term maintainability and scalability., • Collaborate with product managers, designers, and engineering leadership to define and drive technical strategy and roadmap., • Lead cross-functional technical initiatives, including performance optimisations, system refactoring, and migrations., • Establish and enforce engineering best practices across the organisation (code quality, security, testing, CI/CD)., • Mentor and coach engineers and senior engineers, fostering professional growth and technical excellence., • Conduct and facilitate design reviews, code reviews, and technical deep dives., • Drive innovation by evaluating and introducing new technologies, frameworks, and methodologies. What you’ll need: • 12+ years of relevant experience in the core technology skills, including substantial leadership and architecture responsibilities., • Core Technology skills required – Strong full stack software engineering skills., • Desirable technology skills: Python, Django, React, JavaScript, MySQL, SPAs, AWS (Lambda, CloudFormation, RDS)., • Best practice software development skills and practices., • Excellent communication skills with an open, collaborative approach., • A passion for problem solving and challenges., • The desire to positively contribute to shaping organisation culture and be part of a diverse team., • A good understanding of consumer finance, B2C payments and integrated e-commerce solutions is preferable. What we bring: • A Passionate, Driven, and Highly Collaborative Team: Join a team that is dedicated to making a difference, where collaboration and passion drive our success., • Mission-Focused Organization with a Well-being-Led Culture: We prioritize both our mission to drive clean energy solutions and the well-being of our team members, fostering a supportive and healthy work environment., • Diverse, Equitable, and Inclusive Work Environment: We celebrate diversity and inclusivity, creating a workplace where everyone's contributions are valued and respected., • Professional Development and Support for Your Growth: We invest in your development with opportunities for learning and advancement, supporting your career journey., • Constant Exposure to New Opportunities: Experience a dynamic work environment where you'll encounter cutting-edge technology solutions and innovative projects., • Fast-Paced Environment with Leading Technology Solutions: Work at the forefront of the clean energy sector, leveraging state-of-the-art technology to drive impactful change., • Flexible Leave Options: Enjoy flexibility to manage your life-work priorities with leave options that support your personal and professional well-being., • Opportunity to Create a Lasting Impact: Be part of the clean energy movement and contribute to a sustainable future, making a meaningful impact on a global scale. If you are a talented principal software developer possessing all of the requisite skills, seeking an opportunity to join our fast-paced start-up, please apply.

Team: Backend Location: UK Remote Employment Type: Full-time and Permanent Remuneration (UK – Remote): £81–108k Base Salary + Discretionary Bonus + Equity We are a stealth-mode AI laboratory researching and developing Machine Learning models. The founding team consists of Cambridge graduates and former engineers at Google, Meta, Bloomberg, Microsoft and Amazon. We are backed by prominent investors from the US and the UK, including institutional VC funds and C-level executives of global technology companies. The role involves the design and development of backend services and infrastructure for Machine Learning workloads. You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will: • Design and develop highly-scalable, fault tolerant and event driven systems that directly power our core products., • Lead projects from inception to launch and beyond, having a high degree of autonomy and ownership over your work., • Work closely with the founding team and contribute towards best practices, standards, and culture of the company., • Mentor colleagues and lead by example, raising the bar for the whole company., • Help hire future colleagues and shape the team you want to work with. Our tech stack: • We use and leverage AWS as much as possible and manage it with Terraform., • Services are written in C# (.NET 9) and deployed to ECS or Lambda via GitHub Actions., • We use Postgres, SNS/SQS and Redis., • We have good end-to-end test coverage and are confident in our deployments. What we are looking for: • Back-end development: 5+ years of industry experience building reliable and scalable back-end systems with an object-oriented language., • Cloud-native technologies: Experience in architecting and deploying in cloud platforms (e.g., AWS, GCP or Azure), an understanding of containerisation (e.g., Docker), infrastructure-as-code software (e.g., Terraform), and observability platforms (e.g., Datadog or Grafana)., • Strong ownership mindset: You naturally take responsibility for outcomes, not just tasks, and care deeply about the quality of what you ship., • Product-oriented thinking: You think beyond implementation details, proactively suggesting improvements that balance customer value with business impact., • Leadership: A track record of leading complex projects and influencing technical direction., • Problem solving: Strong analytical problem-solving skills and attention to detail. You have the ability to break down complex projects into actionable tasks., • Collaboration and communication: Excellent interpersonal and communication skills, with technical and non-technical stakeholders. We would like to acknowledge that almost no candidate checks every box – and that is perfectly fine. If you are passionate about solving complex challenges and open to learning new technologies, we would love to hear from you. How we work: • We are a small, early-stage team with big ambitions. We move quickly, care deeply about what we build, and take pride in doing things well., • This is a high-ownership environment where people who are proactive, curious, and motivated by impact tend to thrive. Nice to have: • Machine Learning: Experience in generative models, LLMs, multi-modal models and Deep Learning more generally., • Open-source: Contributions to and experience in open-source projects., • Startup experience: Experience in an early-stage startup environment. Why join us? • Work in an environment conducting cutting-edge research in AI., • Competitive salary, equity and benefits package., • 28 days + public holidays allowance., • Opportunities for professional growth and progression with your career., • Work on challenging engineering problems that have a real impact on the industry., • Work with high-profile customers and technology partners.

Full-Stack Dev/Engineer (Python / AWS / React) Contract – Fully Remote (UK) Initial 6 months We’re looking for Software Engineers to join a long-running, enterprise-scale digital programme delivering secure, user-centred services used at national scale. This is a fully remote contract, working within a mature engineering team operating in a regulated environment. What you’ll do: • Build and maintain Python backend services, • Deploy and operate services on AWS, • Contribute to React frontends using established design systems, • Write well-tested, production-ready code, • Work collaboratively in open, agile teams Key skills: • Python (API / service development), • AWS (cloud-hosted applications), • React (TypeScript preferred), • Automated testing, CI/CD, containers, • Enterprise or regulated environment experience Security: • BPSS required prior to start, • Must be eligible for SC clearance If this role aligns with your experience and availability, please apply.

Location: Bristol, Cambridge, London, Manchester Position Summary Connect to your Industry Do you want to be at the heart of some of the biggest and most ambitious programmes undertaken to keep our country safe? We are proud of the impact we have with our Defence & Security clients, the strength of our relationships, and the variety of our skills and expertise that we bring to help them achieve their mission. We’re growing our teams across all of Technology & Transformation. If you are cleared to DV level, and want to grow your career in this sector, we are very keen to hear from you. Connect to your career We drive progress. Using our vast range of expertise, we help our clients become leaders wherever they choose to compete. To do this, we invest in outstanding people. We build teams of future thinkers, with diverse talents and backgrounds, and empower them all to reach for and achieve more. What brings us all together? It’s how we approach the thousands of decisions we make every day. How we behave, our beliefs and our attitudes. In other words: our values. Whatever we do, wherever we are in the world, we lead the way, serve with integrity, take care of each other, foster inclusion, and collaborate for measurable impact. These five shared values guide every decision we make and action we take, helping us deliver impact where it matters most. Connect to your opportunity We're looking for people who are natural initiative-takers—individuals who bring out the best in others, are brilliant listeners, and can help grow our business without compromising standards, integrity, or culture. We are seeking a highly skilled and motivated Full Stack Developer to join our dynamic team in the public sector. The ideal candidate will possess a strong background in both front-end and back-end development, with a focus on creating innovative and efficient solutions for government-related projects. The successful candidate will play a key role in designing, implementing, and maintaining web applications that address the unique challenges and requirements of Defence & Security. Responsibilities: • Design, develop, and deploy robust web applications for public sector projects., • Contribute to the entire software development lifecycle in collaboration with cross-functional teams., • Create responsive user interfaces using modern front-end technologies and frameworks., • Develop secure and efficient server-side logic using relevant languages and frameworks., • Implement security best practices, ensuring compliance with government regulations., • Conduct regular security assessments and collaborate to address vulnerabilities., • Develop and maintain well-documented RESTful APIs for seamless system communication., • Work with project managers, UX/UI designers, and stakeholders to translate requirements into technical specifications. All applicants must hold (or be willing to obtain) UK security clearance to Developed Vetting (DV) level. Essential skills: • Proficient in modern front-end technologies: HTML5, CSS3, JavaScript, and frameworks like React, Angular, or Vue.js., • Strong skills in server-side logic using languages such as Node.js, Python, or Java., • Experience with both SQL and NoSQL databases, including data modelling for government applications., • Proficient in analyzing complex issues and implementing effective solutions for public sector challenges., • Flexibility to navigate changing project requirements in a dynamic public sector environment., • Familiarity with government processes, policies, and systems, enhancing the ability to tailor solutions to public sector needs., • Understanding of UX principles to create applications that are accessible and user-friendly for government officials and the public., • Proven ability to develop and maintain well-documented RESTful APIs for seamless system communication., • Experience with implementing and adhering to security best practices for government data.

Freelance Full-Stack Engineer (React / 3D) Role: Full-Stack Developer (Next.js / WebGL) Engagement Type: B2B Contract / Freelance (Project-Based) Location: Remote (UK-based only) Duration: Estimated 4-6 Weeks (Fixed Deliverables) 1. The Engagement We are seeking a high-velocity freelance engineer to architect the core web infrastructure for a SaaS platform. The project involves building a sophisticated browser-based editor that handles 3D asset manipulation, complex state management, and client-side media processing. Operational Model: This is a hybrid-workflow project. The contractor is explicitly encouraged to utilise AI Coding Assistants (Cursor, Copilot, etc.) to handle boilerplate and UI velocity, focusing their manual engineering effort on the complex WebGL architecture and state logic. 2. Statement of Work The project requires the delivery of four core technical modules: A. The 3D Editor Environment • Requirement: Build a performant editor using React Three Fiber (R3F)., • Functionality: Implementation of a workspace allowing for the import, arrangement, and manipulation of 3D assets (.glb) using standard transform controls., • Key Challenge: Efficiently managing scene graphs and transient updates outside the React render loop to maintain performance. B. Browser-Based Media Generation • Requirement: Architect a client-side pipeline to process and export canvas content., • Functionality: The system must be able to capture frame-data from the 3D context and assemble it into media files entirely within the browser, minimizing server-side dependencies., • Tech: Proficiency with WASM-based solutions (e.g., FFmpeg.wasm) is required. C. Real-Time Device Synchronization • Requirement: Create a low-latency "Handshake" and data layer between the web session and external connected clients., • Functionality: Implement a secure pairing flow (e.g., code-based) that facilitates the bi-directional sync of JSON state data between the web app and remote sessions. D. Interactive 2D Overlay • Requirement: A manipulation layer for defining regions of interest., • Functionality: Implementation of a vector-based drawing interface (using libraries like fabric.js) to generate coordinate data and masks for backend processing. 3. Tech Stack • Frontend: Next.js 14+ (App Router), TypeScript, Tailwind CSS., • 3D Environment: Three.js ecosystem (React Three Fiber, Drei)., • State Management: Zustand (Crucial for the 3D/UI bridge)., • Backend Infrastructure: Supabase (PostgreSQL, Auth, Storage)., • Media Processing: Browser-based encoding (WASM). 4. Contractor Profile We are looking for a specialist who: • Is an "AI-Native" Developer: You move faster than the average dev because you leverage AI tools to automate the mundane, allowing you to ship complex features rapidly., • Understands 3D on the Web: You know the difference between a mesh and a geometry, you understand scene graphs, and you know how to optimize assets for browser memory limits., • Delivers Autonomous Solutions: You can take a technical requirement and execute it end-to-end without daily micro-management. 5. Timeline • Phase 1: Core Chassis, Auth, and Asset Import., • Phase 2: State Management & Sync Logic., • Phase 3: Client-Side Rendering Pipeline., • Phase 4: API Integration & UI Polish.

A leading AWS Premier Consulting Partner is seeking a Lead Full Stack Engineer to join its growing technical team. Software Development Design, build, test, and deploy full stack applications using modern tools and frameworks. Advocate for a "security by design" mindset in all engineering activities

GenAI Full Stack Engineer - Managing Consultant Salary: £80,000 - £88,500 pa + £8,000 Bonus plus benefits, perks and healthcare options Job Type: Permanent - Hybrid / 2 x days per week - Travel to client site Base Locations: London, Manchester, Newcastle, Glasgow Overview: We're looking for a GenAI Full Stack Engineer who is passionate about solving real-world challenges through technology. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translate business issues into relevant technical solutions and competitive propositions that are scalable, secure, and sustainable. Your Role: Collaborate with the team to develop GenAI proof-of-concepts (POCs) for clients using technologies like Retrieval-Augmented Generation (RAG) and intelligent agents. Scale existing POCs to production-ready solutions for customer use. Design and develop Full Stack applications for both GenAI and non-GenAI projects. Support the development of infrastructure to enable robust end-to-end solutions. Grow your skills by exploring and experimenting with emerging technologies, including GenAI. Your skills and experience: Backend Development: Experience in building microservices using either Python with FastAPI, or TypeScript with Express or equivalent Frontend Development: Experience in building React applications using TypeScript, leveraging frameworks such as Next.js or Vite. GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). LLM experience: Practical experience with Large Language Models (LLMs) such as OpenAI, Anthropic, Mistral, or Llama, and tools like Ollama. Cloud Platforms: Proficiency in AWS or Azure for hosting and deployment. Containerization and Orchestration: Hands-on experience with Docker, Kubernetes, and Docker Compose. Infrastructure as Code (IaC): Exposure to tools like Terraform. Monitoring Tools: Familiarity with LLM monitoring tools like Langsmith, Langfuse, or similar. CI/CD: Experience with continuous integration and deployment tools such as GitLab, GitHub, or Jenkins. Vector Databases: Experience with and (but not limited to) ChromaDB, Pinecone, PGVector, MongoDB , Qdrant etc. NoSQL: Familiarity with NoSQL databases (e.g., MongoDB preferred). SQL: Experience working with SQL databases like PostgreSQL. Proficient in Git and version control platforms like GitHub, GitLab, etc. To be successfully appointed to this role, it is a requirement to obtain Security Check (SC) clearance. TPBN1_UKTJ

Title : Senior GPU Engineer (Vulkan or OpenCL) Company : AI Acceleration Location : London (once per month) Pay : Up to £170,000 + bonus and benefits Company : An advanced HPC R&D firm, looking to expand their GPU Driver team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they get more flexibility and have more challenging/interesting work to do as the team is significantly smaller, with highly technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position. You will be a significant hire spearheading much of their 2025 development. Much of the team will be built around you, and significant hires have already been made. You will develop, optimise and maintain their GPU driver stack, focusing on the performance and efficiency of graphics and compute workloads on cutting-edge GPU architectures. About you: 2 years+ in GPU Driver Development Strong C++ or C programming skills Experience with OpenCL or Vulkan Full details are available. Please don't hesitate to get in touch. TPBN1_UKTJ

Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment. JS, SEQUELIZE Circle Recruitment is acting as an Employment Agency in relation to this vacancy.

Java Full Stack Engineer (DV Cleared) Consultant Level - Digital Excellence Salary: £46,330-£55,000 Base Locations:. The Role As a DV Cleared Java Full Stack Engineer, you'll turn visionary ideas into real-world solutions for clients tackling some of the UK's most complex challenges. Applicants mu

Senior Software Engineer (Fullstack Developer) I am currently recruiting for a Senior Software Engineer to join a leading organisation based in the South West. Communicate technical ideas clearly to audiences with varying technical backgrounds Key Skills Proven experience in full-stack software dev

Head of Integrations SaaS / Software A fantastic opportunity has arisen for a Head of Integrations to join a pioneering software company that is transforming how global enterprises leverage cutting-edge technologies. This innovative business, backed by top-tier investors and recognised among the worlds most promising AI companies, is expanding their technical team to support continued growth and success. They are looking for an experienced technical leader to take full ownership of integrations with third-party systems. This is a hands-on, client-facing role ideal for someone who can combine deep technical knowledge with excellent communication and leadership skills to optimise client implementations. Note this is an individual contributor role leading clients opposed to team leadersership. Location: London office (3 days in office) or option to be based from the Cambridge office Salary: Negotiable basic salary + excellent benefits package Requirements for Head of Integrations: Significant commercial experience in SaaS companies, in a role relating to Software Integrations into customers A strong academic history (2.1/1st top Uni, As at A Level etc) the management team is made up of some of the brightest minds in AI (many with Ph.D.s from internationally leading Unis), so they need someone who can technically joust at this leve Proven track record in software development, system integrations, and creating developer resources such as APIs, SDKs, and technical documentation. Strong experience across Integrations, Full Stack Web Development, and Cloud Architecture Proficiency with one or more of the following technologies: JavaScript, NodeJS, Python (or equivalent modern frameworks/languages). Outstanding interpersonal and communication skills, with the ability to convey technical concepts clearly to a range of audiences. Highly organised with excellent time management, attention to detail, and a proactive, problem-solving mindset. Comfortable working in a fast-paced, innovative environment with shifting priorities and tight deadlines. Responsibilities for Head of Integrations: The dream is to reach the pinnacle of Software Integrations, where customers can see this happen seamlessly with the touch of a button (we appreciate not an easy task!). To start making steps on this journey, the successful applicant will: Take complete ownership of integration processes with external systems, ensuring seamless connectivity and high levels of client satisfaction. Create robust, innovative technologies for optimised client implementations. Collaborate closely with Client Solutions and other internal teams to fully understand client requirements and deliver tailored technical solutions. Design and implement scalable, future-proof architectures for new third-party connectors and integrations. Enhance system observability by improving diagnostics, logging, and tracing to aid technical support teams in resolving issues swiftly. Oversee the ongoing development and management of the public API, covering REST and event streaming functionality to support bespoke client integrations. Produce comprehensive technical documentation for both internal stakeholders and external users, leveraging tools like Swagger for clarity and accessibility. Drive the development of self-serve capabilities to empower clients to independently manage their integrations wherever possible. What the role offers: Join an award-winning, high-growth tech company at the forefront of AI innovation. Work on exciting projects that directly impact the efficiency of global enterprise operations. Collaborate with a passionate, talented team in an inclusive and supportive environment. Enjoy excellent opportunities for personal and professional development within a growing organisation. Applications: If you would like to apply for this exciting Head of Integrations opportunity, please send your CV via the relevant links! Were committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the interview process, please let us know by separately emailing(if this email address has been removed by the job-board, full contact details are readily available on our website). Keywords : Head of Integrations / Technical Integration Lead / API Integration Manager / SaaS Integration Engineer / Full Stack Developer / Solutions Architect / Cloud Engineer / Platform Integrations Lead / NodeJS / JavaScript / Python / API / Cloud Architecture / Swagger / Computer Science / Software Engineering / Integration Architect / API Solutions Lead / Technical Project Manager / SaaS Platform Engineer / Systems Integration Specialist RedTech Recruitment Ltd focus on finding roles for Engineers and Scientists. Even if the above role isnt of interest, please visit our website to see our other opportunities. We are an equal opportunity employer and value diversity at RedTech. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. TPBN1_UKTJ

Follow us on Facebook - Circle Recruitment , Twitter - @Circle_Rec and LinkedIn - Circle Recruitment. JS, SEQUELIZE Circle Recruitment is acting as an Employment Agency in relation to this vacancy.

Java Software Engineer / Developer (Full Stack Java) London / WFH to £100k.Are you Java technologist? You could be progressing your career in a hands-on, impactful, Software Engineer role, working on a 'tech for good' product that is helping to drive efficiencies for the NHS, the core product is a

Are you an Engineer with a background in C#? Are you a Software Developer looking for a new challenge within a globally recognised company? If so I would love to speak to you! An exciting opportunity has arrived for a Full Stack Software Developer (C#) based in the Isle of Wight to join a market lea

Title: Software Development Team Lead Find out exactly what skills, experience, and qualifications you will need to succeed in this role before applying below. Location: Gilwell Park, E4 7QW (with Hybrid working), minimum once a month for team meeting Salary: £82,000 per annum (Band I) Contract: Permanent Hours: Full-time (35 hours per week) The Role We work in a culture where people are trusted to use their expertise, encouraged to grow, and supported to try new things. Collaboration is at the heart of how we operate — our architects, business analysts, UX designers, product and delivery managers work together to solve real problems for real users. This is a brand-new senior engineering leadership role within Technology & Digital. You’ll play a key part in shaping our software development capability, continually improving digital tools that thousands of volunteers rely on every day. Shape the future. Transform the movement. As our Software Development Team Lead, the key responsibilities are: • Build and lead a software development team, including back-end and/or full-stack engineers, • Provide day-to-day technical leadership, coaching and line management, • Remain hands-on in software development, code reviews, and technical problem-solving, • Lead the design, build, integration and operation of volunteer-facing digital platforms, • Own engineering quality: code standards, testing, CI/CD, security, performance and reliability, • Significant experience as a software engineer, with time spent writing and maintaining production code, • Proven experience leading or mentoring developers in a delivery environment, • Comfortable balancing hands-on technical work with people leadership, • Strong understanding of modern software engineering practices (e.g. version control, testing, CI/CD, cloud-hosted services), • We are an award-winning Charity of the Year (Charity Times Awards 2022) with over 400 employees across multiple locations across the country., • 28 days holiday and going up to 32 days after 2 years’ service plus additional days at Christmas, • Flexible working hours, • Work in a way that suits you, your role and your department Closing date for applications: 11:59 pm Sunday 1st February 2026 There will be a 2-stage interview. Technical Interview and Competency-Based Interviews. Date for these, TBC at a later date. Strictly no agencies. The Scouts is an equal opportunities employer and we are committed to fostering an inclusive environment where everyone feels valued and empowered to contribute. We offer flexible working arrangements to support diverse needs and lifestyles, ensuring that our teams can thrive both professionally and personally. We welcome and encourage applicants from all walks of life, believing that varied perspectives strengthen our innovation and community. xrnqpay Your unique experiences and ideas are essential to our success, and we look forward to hearing from all voices.

Frontend-Focused Full-Stack Engineer – AI x LegalTech | £150,000 + Equity | Onsite in Central London. They’re on the lookout for a frontend-leaning full-stack engineer to design entirely new UX patterns for AI-driven workflows - an area where no standard playbook exists. Strong frontend experti

A leading software company in London is looking for a Java Fullstack Engineer.You will join a collaborative team focused on developing innovative web applications and data engineering solutions.The ideal candidate is passionate about technology, has a strong understanding of both front and backend d

Demonstrable hands‑on experience in full‑stack software development in a product‑oriented environment. Deep enthusiasm for full‑stack software engineering with strong problem‑solving capabilities.

Features will likely cover the whole stack with a heavy focus on backend.

Partnering with engineering leaders, mentoring engineers, and removing blockers to foster growth and independence. Legal & General (L&G) is a leading UK financial services group and major global investor. We have an exciting opportunity for a Full Stack Staff Engineer to join our expanding software

Graduate Full Stack Engineer – Join an Exceptional Team. An innovative technology company is seeking a Graduate Full Stack Engineer to join their talented and collaborative team. This is an exciting opportunity for a recent graduate with a passion for building innovative solutions and working alon

Are you a passionate Java Full Stack Engineer looking to build modern, impactful digital solutions across a range of transformation programmes? This is an opportunity to join a dynamic, fast-growing engineering community where you'll work with cutting‑edge technologies and deliver meaningful outco

Use your software engineering skills to develop, test, release, support and maintain complex financial platforms. Years Experience in software engineering. Mentor junior engineers and champion best practices within the team.

Reporting to a Senior Director of Engineering, the primary responsibility of the Senior Full-Stack Engineer is to develop software solutions for the elite sports industry. Senior Full-Stack Software Engineer. Based in London, you will be a key player in the Engineering team working on the Perch fami

What's in it for you: Salary to £75k + Bonus Pension Private Medical Care Life Assurance Travel Insurance Subsidised gym membership and a range of other perks Your role: As a Full Stack Engineer you will design and develop web based client portals across the full stack with Python and JavaScript. F

A leading global financial services firm seeks a Full-Stack Engineer to design and develop scalable applications.This role involves working with Java and various frameworks in a dynamic environment focused on delivering low-latency financial solutions.Candidates should have a solid background in Agi

You’ll be working across the full stack, with the freedom to shape and deliver impactful projects from concept to deployment.South West London (Hybrid – 2 days onsite).Building and managing APIs with.Designing, implementing, and deploying.Collaborating closely with design and product teams to tr

A leading travel tech company is seeking a backend-focused full-stack engineer to tackle diverse technical challenges in their London or Oxford office.The candidate will work closely with product managers and designers throughout the software design process, enjoying regular code releases and a flex

Contribute to the definition and implementation of good engineering patterns and practices within the team and across the wider tech community.

Projects span the full development lifecycle, from backend services and data processing in Python through to user facing interfaces built with React and TypeScript. We are partnering with a leading hedge fund that is hiring a full stack engineer to join a high performing technology team supporting o

By adopting Holistic AI, organizations can unlock the full potential of AI technologies while minimizing risks and ensuring that AI is used in a way that aligns with their values and goals. By applying for this or any of our roles, you acknowledge that HolisticAI will be storing your personal detail

GenAI Frameworks: Familiarity with tools like LangChain, LangGraph, CrewAI, or Vercel AI (in Python or JavaScript). GenAI Full Stack Engineer - Consultant / Senior Consultant. You'll work closely with senior stakeholders both internally and within key clients to create GenAI strategies that translat

JavaScript, Typescript, Node, React, Angular, AWS, Developer, MongoDB, Jest, Software Engineering Manager, Software Manager, Head of Engineering, Software engineer, Web, Software Engineer, Senior, Fullstack, Full Stack Software Engineer Greater London, UK Wide, Remote, Fully Remote. Software Enginee

Please apply for full details!.