Full Stack Developer Jobs in Wales, United Kingdom

Huzzle, a global B2B sales talent platform, seeks a Founding Engineer to build core product systems from zero to launch. The role drives end‑to‑end full‑stack development, crafting high‑performance user experiences and scalable backend services, while collaborating closely with founders, designers, and early users.

Nebius AI Cloud Platform team builds a full-stack AI cloud platform that powers developers and enterprises from data ingestion to production deployment. The AI Full-Stack Developer creates AI-driven automation solutions, integrating LLMs, APIs, and agent frameworks into internal tools such as HR, finance, and ticketing systems.

UBDS Group Delivery Centre builds modern cloud‑native applications for enterprise clients. As a Full Stack Developer you will design, develop and maintain .NET and React solutions on Azure, create APIs, workflow tools and UI components, and support CI/CD pipelines and infrastructure as code.

Newicon, a 17‑year‑old digital product studio, seeks a Senior Full‑Stack Developer to lead end‑to‑end software projects. The role blends architecture, coding, testing, and client collaboration in an agile environment.

Contenta, part of RWS's content management platform for the Aerospace & Defence market, seeks a Staff Engineer - Full Stack TypeScript Developer to build innovative, cross-platform applications using a unified architecture. You will develop responsive frontends in React, build RESTful/GraphQL APIs with Node.js and Fastify, and create desktop/mobile apps using Electron and React Native, while applying vibe coding techniques with AI tools.

Swanky is a fast-growing global ecommerce agency that designs, builds, and grows Shopify Plus stores for ambitious brands. As a Mid-level Full Stack Shopify Developer, you will lead complex technical solutions, architecture, and client-facing discovery, acting as a trusted technical authority who guides projects from scoping through delivery.

Turnblock.io develops blockchain solutions for the gaming industry, delivering fast, frictionless token experiences for betting and gaming platforms. As a Full Stack Developer you will design, code and implement high‑quality React, React Native and Node.js applications, work with APIs and microservices, and design cryptographic protocols for blockchain deployment.

As a Software Engineer II within JPMorgan Chase's Commercial and Investment Banking division, you join an agile team to enhance, design, and deliver secure, stable, and scalable software components for the firm's state-of-the-art technology products. Day-to-day work includes executing standard software solutions, designing and developing code with limited guidance, troubleshooting technical problems of basic complexity, and leveraging enterprise-authorized AI coding assist tools while validating

BNY Mellon is seeking a Vice President - Java Full Stack Engineer with AI-driven development exposure to join the Conventional Trust Platform team in Manchester, United Kingdom. In this role, you will define and execute the enterprise Java full stack technology strategy, champion AI-driven development practices, and drive modernization initiatives including cloud migration, microservices, and API-led platforms.

Typeform is a leading provider of interactive forms, surveys, and data collection experiences, helping over 150,000 businesses collect data through engaging forms, surveys, and quizzes. This Mid level Full Stack Engineer role focuses on evolving internal systems and infrastructure that support the product development ecosystem, with a stronger backend emphasis.

We are seeking an experienced Full Stack Developer to join our technology team. This role is suited to a software engineer with extensive development experience, including Angular development and backend development using .NET Core/C#.

We’re seeking a highly skilled and motivated Full Stack Developer to join a small, high-impact team supporting Intelligence Community operations in the CBRN mission space. This is a unique opportunity to develop innovative, cloud-based tools that enhance operational awareness, data analysis, and decision-making for real-world intelligence challenges.

To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. We are seeking a Senior Full Stack Developer to join the UKCLO (UK Corporate Lending Origination) team within the Wholesale Lending transaction cycle.

The Opportunity: As a Senior Developer, you’ll have significant autonomy to shape how some of the world’s largest telecom operators communicate with consumers and detect issues across their networks. You’ll help evolve the platform into a proactive, intelligent system built around Observe - Think - Act workflows, designing autonomous, AI‑driven operations that surface insights, trigger actions, and streamline complex network processes at scale.

We are looking for a Full Stack Developer to join one of our Web Application teams focused on building an internal EDI configuration tool. While the role involves both front-end and back-end development, you can expect a stronger emphasis on front-end work in your day-to-day tasks.

As a Full Stack Developer, you will discover, design, build, cloud-based applications and prototypes that support discovery work. You’ll work across both front-end and back-end development, helping teams explore, test, and validate new technical approaches and digital services that underpin wider reform programmes.

Taxo.ai is building the future of autonomous healthcare, automating manual workflows with AI. As a Full Stack Engineer you will own the end‑to‑end tech stack, developing payer and provider portals, custom workflow logic powered by LLM extraction, and integrations with EHR systems. This role is based in San Francisco or London with remote options, offering full tech ownership from day one.

HASH builds an open-source platform that transforms structured and unstructured data into knowledge graphs for process simulation, optimization, and automation. As a Full-Stack Engineer you will develop user‑facing features across the frontend and backend, ensuring rapid delivery and modular, reusable components.

The Director, Full-Stack Engineer joins the Enterprise Transformation Hub at BNY Mellon to accelerate adoption of AI-enabled solutions across the engineering and transformation ecosystem. Day to day, you will design and build scalable developer-focused solutions spanning user experience, application logic, APIs, data integration, and AI solution delivery, while consulting with IT and business managers, resolving highly complex problems, writing testable code, developing test automation suites, i

Soda is building the first Data & AI performance monitoring platform to help Fortune 500 companies solve data quality bottlenecks. As a Senior Full-Stack Engineer, you will lead frontend development for complex, data-dense UIs while owning backend API implementations in Java.