React native jobs in Reino Unido - Page 3

Stax is proud to be representing a leading, well-funded AI-driven SaaS company that is redefining the future of work. This organisation is building an AI-native platform that unifies data, drives intelligent insights, and empowers collaboration across teams and customers. Its mission is to remove friction, break down silos, and enable people to focus on solving bigger problems, building better products, and delivering exceptional customer experiences. What You’ll Do • Architect the platform: Define patterns, conventions, and tooling that keep the React + TypeScript codebase fast, modular, and maintainable., • Evolve design systems: Lead on design tokens, accessibility standards, and Storybook workflows to drive consistency and speed in development., • Scale data-driven UIs: Build frameworks for rendering billions of rows, real-time charts, and AI-assisted insights while maintaining Core Web Vitals., • Enhance developer experience: Champion CI/CD pipelines, testing strategies, and local development ergonomics to enable engineers to ship quickly and confidently., • Mentor and uplift: Coach senior engineers, review critical code, and run architecture workshops to raise the overall engineering bar., • Collaborate deeply: Partner with cross-functional teams to translate complex, ambiguous problems into elegant, scalable solutions. Tech Ecosystem React · TypeScript · Vite · Next.js · WebAssembly (DuckDB, WebGPU) · D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring • 8+ years building and evolving large-scale web applications., • Proven track record in front-end architecture (modular codebases, micro-frontends, design systems, scalability)., • Strong portfolio of data-heavy, real-time UIs and reusable component libraries., • Expertise in TypeScript, CSS methodologies (Tailwind, CSS Modules, CSS-in-JS), and modern testing frameworks., • Passion for developer experience, tooling, and mentoring., • Degree in Computer Science or equivalent experience. Bonus points for: • Open source contributions to front-end tooling, design systems, or data-visualisation libraries., • Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work • Speed with craftsmanship: Continuous delivery, short feedback loops, and peer review excellence., • Performance first: Time-to-Interactive, bundle size, and UX performance are treated as product metrics., • Inclusive and global: Work with talented engineers across the US, Europe, and India., • Ownership culture: Engineers architect, guide, measure, and iterate with autonomy. Why Apply? This is a chance to join a hyper-growth company at the forefront of AI-powered collaboration, tackling some of the most exciting challenges in front-end engineering today. Interested? Reach out to Stax for a confidential discussion. Please be advised that, owing to the expected volume of applications, we may only be able to contact candidates selected for further consideration.

Scoreline is seeking a skilled Data Engineer to enhance and maintain the data infrastructure powering our AI-driven fantasy sports platform. This role involves designing efficient data pipelines, managing large-scale sports datasets, and ensuring seamless delivery of clean, reliable data for both machine learning models and front-end user experiences. Key Responsibilities • Design, develop, and maintain data pipelines for ingesting, transforming, and storing sports and fantasy data from multiple sources (e.g. OPTA, APIs, internal tools)., • Ensure data quality, reliability, and consistency across real-time and batch processing workflows., • Collaborate with AI engineers to deliver structured, model-ready datasets for machine learning and forecasting systems., • Build robust data services to support front-end features and personalised user insights., • Optimise database performance and manage data storage solutions for scalability and cost-efficiency., • Implement monitoring, alerting, and logging systems for proactive data quality assurance., • Work with software engineers to ensure smooth integration of data flows across Scoreline’s platform., • Document data models, workflows, and schemas for transparency and maintainability. Requirements • Degree, or equivalent experience, in Computer Science, Data Engineering, Software Engineering, or a related field., • Proven experience designing and maintaining data pipelines and ETL processes., • Strong proficiency in Python and working knowledge of JavaScript/TypeScript., • Hands-on experience with cloud-based data storage and compute platforms (AWS, GCP, or Azure)., • Develop and manage data interfaces that retrieve and distribute information via both push and pull services, ensuring reliable, low-latency data flow across the platform., • Familiarity with relational and non-relational databases, • Experience deploying and maintaining APIs and microservices for data delivery., • Proficient with Git for version control and comfortable working in collaborative, agile environments., • Excellent communication and problem-solving skills with strong attention to detail. Preferred Skills • Experience working with sports data (e.g. player statistics, fixtures, live match feeds)., • Familiarity with machine learning pipelines or MLOps principles., • Experience with Google Cloud Platform (GCP) services and infrastructure., • Familiarity with Pulumi for infrastructure as code and cloud resource management., • Understanding of data visualisation and analytics tools. We sit at the intersection of sports, data, and product design – turning complex models and real-time information into simple, intuitive experiences that fans use every week. We’re a fast-growing, profitable scale-up with ambitious plans: rebuilding our core experience as a truly native app, expanding into new sports, and doubling down on an AI-first product philosophy. Why Join Us? • Competitive Salary & Benefits: We offer a salary package based on experience, plus a range of benefits., • Flexibility: Enjoy the freedom of working remotely with flexible hours., • Innovative Environment: Work with a talented team in a fast-paced, dynamic industry., • Modern Tech Stack: Work with cutting-edge technologies including React Native, Expo, Next.js, and Google Cloud Platform.

Lead Java Developer HealthTech SaaS | Tech for Good UK-based, Fully Remote, Up to £75k, Excellent Benefits, Permanent Lead Java Developer is required by our successful HealthTech scale-up client. You'll be leading a small, focused engineering team (5 developers) working on full-stack development with Java/Spring Boot on the backend and React Native for mobile. You will: • Lead technical direction and architecture, working across Java backend services, frontend and React Native mobile apps, • Set engineering standards and review code for quality, security and performance, • Mentor and develop a small dev team, shaping culture and how you work together, • Own delivery: refine requirements, plan sprints, manage releases and communicate risks, • Stay hands-on writing Java/Spring Boot and React Native code, • Work with AWS, CI/CD pipelines and infrastructure-as-code, • Ensure strong security, privacy and compliance in a regulated healthcare environment You have: • Strong commercial experience with Java and Spring Boot, • Solid experience building mobile apps with React Native (or native Android/iOS), • Cloud & DevOps exposure (ideally AWS, plus Terraform, Ansible, CI/CD), • Proven experience mentoring or leading other developers, • Clear communication skills with both technical and non-technical stakeholders Nice to have: • Experience in healthcare, other regulated environments, or SaaS platforms This is a genuine Tech for Good that's improving patient outcomes every day. If you're a Lead Engineer or Senior Engineer looking for your first Lead role where your work genuinely makes a difference, get your CV over to us ASAP.

Role: SC Cleared Senior Frontend Developer Contract Length: 12 months Location: Remote Industry: Public Sector Interview Process: 1 Stage, Ms Teams Clearance: SC Are you a Senior Front-end Engineer who thrives in modern JavaScript frameworks and wants to shape a brand-new greenfield platform? This is a chance to join an established organisation embarking on a large-scale build, where your technical leadership and product ownership will have a direct impact from day one. You’ll join a high-performing engineering group working on a brand-new application using React and Next.js, with the opportunity to contribute across the wider stack including Java, Spring Boot, and AWS. What We’re Looking For: • Strong experience in React and Next.js, • Strong cloud knowledge (AWS) What You’ll Be Working On: • Leading front-end development on a greenfield product, • Building high-performance UI components in React and Next.js, • Collaborating closely with backend engineers working in Java and Spring Boot, • Working hands-on with AWS services in a modern cloud-native environment, • Driving quality, performance, and engineering standards within the team Desirable Skills: • Exposure to Java and Spring Boot, • Experience leading or mentoring developers, • Proven background contributing to greenfield product builds PLEASE DO NOT APPLY IF YOU ARE NOT PRE-CLEARED TO SC LEVEL

Job Title Senior Software Engineer (TypeScript) Package £70,000 – £90,000 + benefits Flexible for the right candidate Location UK based Remote first with optional office time Overview We’re looking for a TypeScript engineer who thrives on ownership. You’ll build and maintain core services, shape APIs, and influence how the platform evolves end to end. This isn’t a ticket-shuffling role - this is about real impact on production systems that scale. Company Overview We’re building the kind of platform engineers actually want to work on. Fast-moving, cloud-native, and user-focused, our product solves real-world problems at scale. You won’t just ship features - you’ll shape architecture, influence the roadmap, and own systems end-to-end. We value clarity over complexity, autonomy over micromanagement, and smart decisions over busywork. If you care about clean code, elegant systems, and having real impact, this is the place to do it. The Role System Ownership • Own features and services from design to production, • Make architectural decisions around APIs, data models, and boundaries, • Take responsibility for performance, reliability, and maintainability TypeScript Engineering • Build backend services in TypeScript (Node.js), • Design and maintain clean, well-typed APIs, • Write code that is readable, testable, and easy to evolve Product & Scale • Work close to product to solve real customer problems, • Improve performance, observability, and resilience, • Design systems that handle growth without constant rewrites Collaboration & Influence • Work closely with engineers and product, • Mentor and influence technical standards and best practice, • Drive technical discussions and shape engineering culture Tech Environment • TypeScript, Node.js, • Backend frameworks such as NestJS (or similar), • React frontend, • PostgreSQL, • AWS, • Docker, CI/CD pipelines Key Skills & Experience • Strong commercial experience with TypeScript, backend or full-stack, • Experience building and owning production systems, • Solid understanding of APIs, data modelling, and system boundaries, • Comfortable in cloud environments, • Pragmatic mindset with focus on simplicity and quality Nice to Have • Experience with distributed systems or event-driven architectures, • Scaling SaaS products at volume, • Shaping architecture or mentoring junior engineers Why This Is Exciting • Real ownership and autonomy - your decisions matter, • TypeScript used properly, not just sprinkled on JavaScript, • Engineers trusted to make architecture and system decisions, • Work on a product that actually scales and impacts users Next Steps If you’re a TypeScript engineer who wants ownership, influence, and meaningful technical work, let’s talk.

🚀 We’re Hiring: Fullstack Software Engineer 🌍 Fully Remote | Full-Time | HealthTech | TypeScript Stack Salary Range: Up to 100.000 GROSS annually (depends on experience). Are you passionate about building seamless, high-impact systems that power real-world change? Do you thrive at the intersection of backend and frontend development? We’re looking for a versatile Fullstack Software Engineer to help scale the core systems of our HIPAA-compliant no-code automation platform that’s transforming healthcare operations. 🛠 What You’ll Do • Design and scale core systems like our workflow engine, AI Copilot, and APIs, • Build end-to-end features across a fullstack TypeScript environment (React frontend + Node backend), • Enhance automation and AI-driven capabilities for complex use cases, • Help evolve our SDK and CLI tools for secure third-party integrations, • Optimize for security, fault tolerance, and performance (HIPAA-compliant), • Strong coding skills (ideally in TypeScript, but we value adaptability over stack-specific experience), • Proven experience across both frontend and backend in production systems, • A deep understanding of software engineering principles (testing, scalability, performance), • A track record of owning features or products end-to-end, • Clear, fluent communication in English—written and spoken, • Modern tech stack: All TypeScript, React, Node, cloud-native CI/CD, • Ownership & autonomy: Real impact, real responsibility, • Quality-focused: We move fast, but never cut corners, • Professional growth & development support, • A mission-driven culture that values clean code and meaningful outcomes, • A collaborative, inclusive environment that celebrates innovation Ready to help shape the future of healthcare automation?

Senior AI Architect – Contract Role Driving Autonomous AI on Azure Are you an AI specialist with a passion for large language models, cutting-edge agentic frameworks, and cloud-native architecture? Join a major programme shaping the future of intelligent systems within an enterprise environment. We’re hiring a Senior AI Architect for an extendable contract role (inside IR35). You’ll lead the design and development of AI applications using state-of-the-art LLMs (e.g. OpenAI, Gemini, Mistral), advanced Retrieval-Augmented Generation (RAG), and frameworks like LangGraph, CrewAI, and AutoGen. This is a high-impact opportunity to set architectural standards, collaborate across engineering and DevOps teams, and build production-grade AI systems at scale—particularly across the Azure cloud ecosystem. What you’ll do: • Design & build AI-driven applications using LLMs for summarisation, generation, Q&A, and reasoning., • Integrate agentic AI frameworks to create autonomous/semi-autonomous workflows., • Lead architecture for scalable AI/ML service deployment, model orchestration, and monitoring., • Deliver full-stack Azure-based solutions with secure backend, frontend, and data services., • Collaborate with DevOps/MLOps teams to streamline CI/CD pipelines for AI workloads., • 8+ years in software architecture / enterprise solutions., • 3+ years of hands-on AI/ML development experience., • Strong Azure cloud architecture expertise., • Proficiency with LLMs, RAG, agent-based systems, and data science techniques., • Experience guiding multidisciplinary teams in a regulated or enterprise setting.

Full Stack Node.js Developer – Must have previous government experience 12 month fixed term contract Remote with ad hoc travel The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to our clients. Our company culture is centred around collaboration, where all colleagues, regardless of their role, work together to minimise risk and shorten delivery times. Our team consists of highly-skilled cross-functional consultants, analysts, and support staff. Your Role Amber Labs is looking for a skilled Full Stack Developer with strong Node.js expertise to join our engineering team on a confidential government transformation programme. You’ll be building secure, scalable web applications across both backend and frontend layers, contributing to mission-critical digital services used across the UK and internationally. What You’ll Do As a Full Stack Developer, you’ll design and develop robust APIs and backend services using Node.js, while also contributing to frontend interfaces that deliver seamless user experiences. You’ll work within a cloud-native architecture, leveraging AWS, containerisation, and infrastructure automation to deliver resilient, maintainable solutions. Responsibilities • Develop and maintain backend services and APIs using Node.js, • Build responsive, accessible frontend components using modern JavaScript frameworks, • Design event-driven systems using Kafka and SQS, • Implement infrastructure automation with Terraform, • Deploy and manage services in AWS (ECS, Cognito, SQS), • Containerise applications using Docker, • Collaborate across DevOps, design, and product teams to deliver end-to-end solutions, • Maintain code quality through GitLab CI/CD and peer reviews, • Ensure scalability, security, and performance across the stack Your Skills and Experience • Proven experience in full stack development with Node.js, • Strong understanding of RESTful API design and microservices, • Experience with frontend frameworks (React, Vue, etc.), • Familiarity with event-driven systems (Kafka, SQS), • Proficiency in AWS services and cloud-native deployment, • Experience with Terraform and Docker, • Comfortable working in agile, collaborative environments Diversity & Inclusion Here at Amber Labs, we are dedicated to fostering an inclusive and equitable workplace for all. Our commitment to diversity, equality, and inclusion includes: • Valuing the unique experiences, perspectives, and backgrounds of all employees and creating an environment where everyone feels welcomed, respected, and valued., • Prohibiting all forms of harassment, bullying, discrimination, and victimisation and promoting a culture of dignity and respect for all., • Educating all new hires on our Diversity and Inclusion policies and ensuring they are aware of their rights and responsibilities to create a safe and inclusive workplace. By taking these steps, we are dedicated to building a workplace that reflects and celebrates the diversity of our employees and communities. Additional Information This role at Amber Labs is a 12-month permanent FTC. Please be advised that, at this time, we are unable to consider candidates who require sponsorship or hold a visa of any type. What Happens Next? Our Talent Acquisition Team will be in touch to advise you on the next steps. We have a two-stage interview process for most of our consultants. In certain cases, we may include a third and final stage, which is a conversation with the company Partners. This will only be considered if deemed necessary.

Mid-Senior Developer Python, React, AWS | Public Sector Programme 6 month + extensions I’m currently supporting a major public sector digital programme that is looking for an experienced Senior Developer to join their engineering team. This is an opportunity to work on large-scale, meaningful services used across health and social care, contributing to both greenfield development and the modernisation of existing digital platforms. The environment is collaborative, user-focused and aligned to GDS-style delivery, with an emphasis on open working, high engineering standards and transparent decision-making. Role overview • Designing and building secure, reliable backend services in Python, following TDD and automated testing practices, • Developing front-end features using React and modern JavaScript/TypeScript tooling, • Delivering cloud-native solutions on AWS, working with services such as Lambda, API Gateway, ECS and RDS, • Working closely with product, design, research and engineering teams in an agile, multidisciplinary setting, • Contributing to CI/CD pipelines, DevOps automation and infrastructure-as-code, • Participating in code reviews, technical discussions and continuous improvement initiatives, • Supporting open documentation and transparent version-controlled design choices, • Balancing new feature delivery with the ongoing improvement of existing services What they’re looking for • Strong hands-on experience with Python for production services (FastAPI, Django or similar), • Solid experience working with React and modern frontend development patterns, • Proven AWS capability, ideally across both serverless and containerised workloads, • Strong understanding of CI/CD, automated testing, code quality and DevOps practices, • Experience within the public sector, GDS-aligned teams or large enterprise environments is highly desirable, • Ability to collaborate effectively within an agile, multidisciplinary team, • A focus on engineering quality, clear communication and user-centred delivery Nice to have • Familiarity with the government design frameworks, • Experience with Terraform, CDK or other infrastructure-as-code tools, • Exposure to legacy technologies such as Java or .NET (not essential) What’s on offer • The chance to work on highly impactful digital services used at national scale, • A mature engineering culture that values quality, transparency and continuous improvement, • A mix of modern greenfield work and meaningful transformation projects, • Flexible working and long-term programme stability

Role: Contract React Native Engineer Length: 6 months (Fully remote) Rate: £350 - £400 per day (Outside IR35) Harvey Nash are currently partnered with an exciting consultancy working with their media client who are looking to fill one of their react native seats there. Key Skills: • Strong react native experience, • React, • TypeScript If you'd be interested in learning more about this role, please apply with your most up-to-date CV!

Our client, a growing company based in London is seeking an experienced Tech Lead to take ownership of the technology stack and guide the engineering team through this next phase of growth. Tech Lead - TypeScript/ React Native - Fully Remote. This is a hands-on leadership role, combining technical d

Lead Software Engineer (TypeScript / React Native) - Fully Remote. Mobile Apps: Core customer apps built with TypeScript, React Native, Expo. Web Apps: Customer-facing portals for sign-up and account management (TypeScript, React, Vercel).

Founding Engineer – Mobile & AI (Stealth Start-up | Launching 2026) Location: Remote Type: Full-Time / Founding Team Salary: Competitive compensation (salary + meaningful equity) Start Date: Jan 2026 About the Company: Our client is a stealth start-up launching publicly in 2026, building an AI-powered personal transformation platform designed to change how millions of people grow, learn, and express themselves. The next decade will be defined by AI-powered personal development, and our client is building a flagship product that helps people unlock opportunities, find confidence, and improve their lives through intelligent, real-time guidance. The business is backed by experienced operators and builders, and they’re assembling a world-class founding team to bring this vision to life. The Role — Founding Mobile & AI Engineer: We’re searching for a founding full-stack/mobile engineer who wants to build a category-defining AI product from the ground up. You will be responsible for taking the product vision and turning it into a beautifully polished, high-performance mobile experience used by people around the world. What you will own: • Build the mobile app from scratch, • Implement a delightful, world-class user experience centred on:, • Real-time voice interaction, • AI-powered feedback and insights, • Daily habit-building loops, • Smooth animations and micro-interactions, • Build and maintain a scalable backend (Node/Python)., • Integrate with leading LLM APIs (OpenAI / Anthropic / etc.)., • The early architecture, tech stack, and development culture., • Ship fast, iterate fast, and help create something users genuinely love. What you will help shape: • Product roadmap & feature prioritisation, • Engineering practices & development velocity, • Infrastructure & data systems, • Future hiring for engineering and design This is a rare opportunity to be the person who actually builds the first version of a company’s flagship AI product. The Person: First and foremost, you will be a builder at heart. You love creating new things, shipping 0→1 products, and turning ideas into polished experiences. You’re happiest when you’re building. A mobile engineer with taste who cares about clean UI, smooth motion, intuitive interactions, speed and craftsmanship. You don’t need to be an expert in everything, but you should be confident working with: • React Native or Swift/SwiftUI, • Node.js / Python backend, • PostgreSQL / Firebase, • API integrations, • Authentication & subscriptions Experience Required: • 4+ years professional engineering experience., • Experience shipping and maintaining mobile apps., • Strong ability to take product requirements and turn them into elegant software., • Clear understanding of building scalable backend systems., • Prior experience in a start-up or small team strongly preferred. If you’re inspired by the idea of building and taking a new AI product into the real world, shaping its identity, and leading the journey to launch, we would love to hear from you.

Lead Software Engineer PIE Recruitment England, United Kingdom (Remote) Engineering Lead – AI driven B2B SaaS platform Remote -- home based - UK only, access to London Permanent Role - £80,000 - £85,000 + benefits Looking for a role where you can shape product, own delivery, and work with cutting-edge tech — without drowning in bureaucracy? This is a chance to lead engineering at a fast-moving SaaS business that’s solving real problems with smart, scalable solutions. You’ll be joining a small yet perfectly formed high-performing team with serious ambitions. The platform’s already winning awards and landing big-name clients. Now they’re scaling — and they need someone who can drive technical excellence while keeping things lean, pragmatic, and user-focused. What You’ll Be Doing • Leading development across a modern, serverless-first stack (Vercel, Neon, AWS Lambda), • Building and maintaining robust APIs and services used by enterprise clients, • Owning delivery end-to-end — from discovery through to deployment and performance, • Shaping engineering culture, tooling, and processes as the team grows What You’ll Need to Bring • 8+ years’ full-stack experience, with strong TypeScript across backend (Express/Next.js) and frontend (React/Vue/Angular), • Solid cloud-native DevOps skills (AWS or GCP) — no server hugging here, • A sharp eye for quality, with strong testing and CI/CD practices, • Curiosity and ideas around how to harness generative AI in real-world products Who They Are This is a well-backed UK start-up with incredibly unique proposition for HR teams. They move fast, value autonomy, and are building something that genuinely works — no gimmicks, no fluff.

Founding Engineer | London | Hybrid | Up to £100,000 | Python | Full Stack Location: London (hybrid) Salary: Up to £100,000 (+/- 10% DOE) + equity Tech Stack • Python ecosystem - experience with Django, or Flask, or FastAPI, • TypeScript & React across the frontend - any frontend experience beneficial, • Cloud native environment This is not a “slot into an existing team” role. This is a build it, shape it, own it role. We are partnered with a mission driven technology company tackling complex, real world problems through software. The product is live, the ambition is big, and the next stage of growth depends on getting the technical foundations right. That is where you come in. They are looking for a Founding Engineer who wants responsibility, pace, and influence. Someone who is comfortable making decisions, writing production grade Python, and working across the stack to ship meaningful features quickly. If you are energised by early stage environments, imperfect information, and the chance to build technology that genuinely matters, read on. The role • Join as a founding member of the engineering function with real ownership from day one, • Design and build core backend services and APIs using Python, • Work end to end across the stack to deliver clean, intuitive user experiences, • Make pragmatic architecture decisions that balance speed, scale, and long term health, • Work closely with product and design to turn ideas into working software fast, • Set technical direction, standards, and ways of working as the team grows What they are looking for • Strong commercial experience building production systems in Python, • Confidence working across backend and frontend when needed, • Experience in fast paced startup or scale up environments, • Comfort operating with ambiguity and making decisions without perfect information, • A bias toward action, ownership, and outcomes, • Clear communicator who collaborates well in a hybrid setup, • Genuine motivation to work on purpose led technology with positive impact The kind of person who thrives here You care about what you build and why it exists. You enjoy momentum. You are not waiting to be told what to do. You see problems, take ownership, and move. You want your work to matter, not just function. You are excited by responsibility rather than intimidated by it. You would rather help shape a product and a team than inherit someone else’s decisions. This is a chance to be early, to be heard, and to build something that aligns with your values as well as your technical ambition. Benefits • Hybrid working in London, • Salary up to £100,000 with flexibility, • Meaningful equity, • The chance to play a genuine founding role in a Tech4Good business If you are looking for a Founding Engineer role where you can move quickly, take ownership, and build technology that actually makes a difference, get in touch at for a confidential conversation.

Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length Opportunity: We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Python, Django and some Java and Rust. This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment and implementing AI work. What You'll Be Doing as a Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length • Designing and building robust backend services across Python and Django, • Collaborating with product and platform teams to scale critical infrastructure, • Contributing to performance optimisation, secure coding, and clean architecture decisions, • Bringing in best practices across multiple programming paradigms and languages Core Skills for the Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length • Senior-level backend experience with Python and Django in production systems, • Proven work with JavaScript and React (production experience strongly preferred), • Familiarity with MySQL Databases and scale, • Strong grasp of APIs, cloud-native systems, and scalable architecture, • Freelance mindset: able to hit the ground running, communicate clearly, and add value fast Details for the Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length • Contract: LTD company (UK) / B2B, • Location: Remote (must be EU-based for legal/timezone reasons), • Duration: Long-term engagement potential, • Start: ASAP If interested in this Backend Engineer, Contract | Python (Django), Java and Rust | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length, please apply here and we will contact you if it's a good match! :)

🚀 Software Engineer | £40k to £60k + Equity | An early stage, well funded AI startup is transforming one of the most outdated and mission critical industries in the economy. It is a £64B market still relying on manual checks, PDFs and spreadsheets. The team is building AI native agentic systems that compress certification and audit timelines from months to days. They are using modern workflows, LLM powered automation and strong engineering practices. After closing an oversubscribed pre seed round, they are now looking for a Junior Full Stack Engineer to join the founding team in Scotland. Why this role stands out: This is not a typical junior position. You will work directly with two experienced technical founders who have deployed enterprise AI systems across many industries. You will: ✨ Ship production features in your first week ✨ Make meaningful architectural decisions early ✨ Be involved in designing the company’s core AI systems ✨ Build for real customers with real world workflows ✨ Learn how to create AI systems from first principles rather than only wiring APIs together If you enjoy being challenged and want rapid growth, responsibility and exposure, this role gives you exactly that from day one. What you will work on You will contribute across the stack, including: • Building and shipping high velocity full stack features using Python, TypeScript and React, • Designing backend systems that integrate with LLM driven workflows and agentic pipelines, • Turning messy human knowledge into structured, self improving AI behaviours, • Working directly with early design partners to understand how they work and to ship solutions they will actually adopt Who they are looking for: • An early career engineer with less than two years of experience, • Strong Computer Science fundamentals, ideally from a strong university or equivalent depth, • A first principles thinker who enjoys solving difficult problems and is not tied to a single language, • Someone already comfortable using LLM tools in their workflow, • A high output builder who enjoys fast paced startup environments, • Someone who values ownership, learning and working closely with technical founders Tech stack • Languages: Python, TypeScript, • Front end: React, • Cloud: AWS, • AI: LLM tools, agentic systems, workflow automation, • Approach: First principles, rapid iteration, strong fundamentals What you will get • £40k to £60k salary based on experience, • Meaningful equity from the ground floor, • A rare chance to learn directly from seasoned technical founders, • The opportunity to build real AI systems that solve real problems, • Responsibility and ownership far beyond a typical junior role, • A fast moving environment where you can grow faster than almost anywhere else

Contract Senior Full Stack Software Engineer (Backend Heavy) : Up to £550 Outside IR35 : Fully Remote (UK) : 3 months (rolling) We’re looking for a Contract Senior Full Stack Software Engineer to join a well-known consumer brand on a high-impact mobile and digital product initiative. As a Contract Senior Full Stack Software Engineer, you’ll support the delivery of new customer engagement features within an existing mobile application. This role is backend-leaning but requires strong full stack capability, with exposure to both web and mobile app environments. Key Skills: • Node.js, TypeScript, BFF experience essential, • React.js & React Native, • Terraform, K8's, Docker, • Cloud experience (ideally GCP) Key details: • Up to £550 per day, Outside IR35, • Initial 3 months (extensions likely), • Interviews Friday/Monday, • January 5th start date This is an exciting opportunity for an experienced contractor to contribute to a customer-facing product used at scale, working within a fast-moving, delivery-focused environment. Please note: Due to the high volume of applications, unfortunately, we may not be able to provide feedback to all applicants. Contract Senior Full Stack Software Engineer (Backend Heavy) : Up to £550 Outside IR35 : Fully Remote (UK) : 3 months (rolling)

Aveni is redefining how financial institutions use AI. We build real, production-ready agentic systems that reshape how banks, advisers and financial services firms operate, replacing fragmented processes with intelligent, end-to-end workflows. We have been recognised as Fintech of the Year for two consecutive years and awarded Best Specialist Technology Service at the Professional Adviser Awards 2025. Backed by leading investors including Puma Private Equity, and commercially supported by Lloyds Banking Group and Nationwide Building Society, we previously completed one of Scotland’s largest Series A rounds. Since then, we’ve continued to grow rapidly as adoption of AI in financial services accelerates, and we’re now scaling our engineering organisation to meet that demand. Our engineering team includes experienced software engineers and PhD-level AI specialists, with strong ties to the University of Edinburgh, giving you access to exceptional expertise and opportunities for continuous learning as part of the day-to-day work. The Role As a Software Engineer at Aveni, you’ll be responsible for building and scaling the products that sit on top of FinLLM (the UK's first LLM for the Financial Services industry) and other LLMs, enabling financial institutions to adopt AI safely and effectively. You won’t be expected to build or train the LLMs themselves, instead you’ll be engineering the platforms, services, user interfaces and integrations that bring those models to life in the hands of advisers, analysts and banking teams. Your work will focus on: • Designing and implementing robust event-driven microservices and APIs, • Building scalable, cloud-native systems on AWS, • Developing modern, responsive React front-ends, • Integrating LLM-powered capabilities into real-world workflows, • Collaborating closely with product and AI specialists to turn ideas into reliable, customer-ready features What you’ll be working with You should be comfortable with most of our core technologies: • Node.js and TypeScript, • React and modern front-end tooling, • AWS (e.g., Lambda, ECS/Fargate, API Gateway, SQS/SNS, DynamoDB, RDS), • NestJS or equivalent back-end frameworks, • Microservices and event-driven architectures We also actively embrace AI coding assistants (such as Claude Code) to speed up development, improve code quality and reduce repetitive work — and we encourage engineers to use these tools effectively. What we’re looking for: • Experience building production systems using Node.js / TypeScript, • Hands-on experience developing UIs with React, • Solid understanding of cloud-native engineering on AWS, • Experience with microservices, messaging patterns and distributed systems, • A commitment to clean code, testing, observability and operational excellence, • A proactive and motivated mindset — someone who wants to build, ship and iterate quickly, • Interest in AI-powered products and a drive to learn Join Us in Making a Difference At Aveni, we believe that diversity drives innovation. We're committed to building a team that reflects the diverse communities we serve and creating an inclusive workplace where everyone feels valued and empowered to contribute their best work. If you're passionate about leveraging technology to drive positive change and want to be part of a team that's shaping the future of financial services, we'd love to hear from you. We know that some people are likely to only apply where they meet 100% of requirements, but we’d like to hear from you anyway. Apply now to join us on our mission to transform the financial services industry through AI! What we offer: • A collaborative and innovative work environment, • Career growth opportunities towards Technical Lead and beyond, • Exposure to cutting-edge AI-first engineering practices, • 34 days holiday plus your birthday off, • Share options, • Remote and flexible working, • Life insurance, • Income protection, • Private health care, • Eyecare, • On-going career development and training, • Freebies and discounts, • Emotional wellbeing (Employee assistance programme provides access to 24/7 employee counseling and emotional support), • Cycle to work scheme, • Pension scheme (employer contribution matched up to 5%) We’re a remote-first company across the UK, with regular off-sites and in-person gatherings that are always fun, motivating and team-focused. If you want to build high-impact technology at the frontier of applied AI and help bring new products and intelligent agents to market, you’ll thrive here.

Role: Senior Backend Engineer Salary range: 80-90k UK remote (1 day per month visit in London) Tech stack includes: Typescript, NextJS, React Native, Expo, GCP, NodeJS, Python, Pulumi, Kubernetes, SQL/NoSQL. Current team size: x1 FE Engineer, x1 BE Engineer, Head of Product, Data Engineer. We're working with a startup company in the fantasy sports domain - combination of data & AI powered tools to make fans better! Profitable, healthy investment (just raised 4.5 million), expanding into new sports and rebuild their core experience as a native app. Essentials for this role: • 5+ years experience building backend systems and dealing with infrastructure (50 : 50 split day to day), • Node/Typescript or Python stack, • GCP ideally however AWS/Azure can be considered, • Terraform or Pulumi Bonus: • ReactJS/NextJS experience No sponsorship available sorry!

A technology-led services company in London is seeking a Senior Mobile Engineer to lead the development of their React Native applications.

Strong proficiency in React and React Native development. Develop and maintain web and mobile applications using React and React Native. Experience upgrading React and React Native applications across versions.

React Native Developer London onsite to £65k. As a React Native Developer, you'll join a small technology team building Greenfield trading systems from scratch, working in a start-up environment with backing from the larger organisation. You'll take ownership, working across the full development li

Mobile Developer – React Native | EdTech Startup.

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Senior Frontend Engineer (React/React Native) Office: London Apply for this role. Libraries and frameworks: gRPC, Redux, React Native, React, Next.

Cleo is built as a Ruby on Rails monolith with a single React Native app frontend, utilising TypeScript. Everyone in the engineering team contributes to driving our technical strategy, voices & ideas from all levels are valued: we are all owners at Cleo. You can view our public progression framework

Reward Gateway is seeking a Lead Engineer to advance its mobile development team.The ideal candidate will possess extensive experience in React Native and a passion for creating high-quality mobile applications.You'll be crucial in guiding a team to deliver exceptional user experiences, alongside co

We know that people want great value combined with an excellent experience from a bank they can trust, so we launched our digital bank, Chase UK, to revolutionize mobile banking with seamless journeys that our customers love.We're already trusted by millions in the US and we're quickly catching up i

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As a Senior Software Engineer specializing in React Native (Expo) at Fanalysis, you'll be at the heart of building our mobile application that connects passionate football fans worldwide. React Native (Expo) and JavaScript developer with apps deployed on the App Store/Google Play. You've owned the e

In-depth knowledge of the React and React Native frameworks. Design, develop, and maintain high-quality mobile applications using React Native. Collaborate with cross-functional teams, including Product, Design, and Backend Engineering, to ensure seamless integration of new features and improvements

The ideal candidate will have over 5 years of experience in frontend development, particularly with React/React Native and a strong command of JavaScript and TypeScript.

Design, build and ship new features for our native mobile apps (React Native) delivering exceptional user experiences on iOS and Android. Work across the full stack (React Native, React, Node. Lead the architecture and development of our new mobile‑first product ecosystem using React Native.

Other mobile development experience, such as iOS development using Swift, or cross-platform development with React Native, Flutter, Ionic, Xamarin, or Cordova. As a Senior Android Developer, you'll be tasked with developing Android applications. This role is ideal for developers who feel confident i

Build and maintain React Native mobile applications and React web applications. 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. You will be responsible for the development cycl

A rapidly growing healthtech company in London is seeking a Senior React Native Engineer.You'll lead the development of customer engagement features in their mobile app, collaborating with cross-functional teams to enhance user health journeys.Required qualifications include 4+ years of software eng

Building applications using React Native in TypeScript or JavaScript. Using latest React features such as Suspense and Hooks. Your responsibilities are to deliver end‑to‑end cutting‑edge solutions in the form of cloud‑native microservices architecture applications leveraging the latest techn