Full Stack Developer Jobs in Wales, United Kingdom

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.

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.

Join Talan as a Full Stack Developer to build AI‑enabled web applications. You’ll design, develop, and maintain scalable solutions using FastAPI, Python, React, and TypeScript, while integrating machine‑learning models into production workflows.

IT Department at DeterTech builds secure, scalable platforms for community safety. The Full Stack Developer designs, builds and maintains web applications using Laravel and Vue.js, modernizes legacy PHP systems, and supports AWS infrastructure and IoT integrations.

Senior Full Stack Developer on the UKCLO team at Barclays, driving the modernisation of wholesale lending platforms by replacing legacy processes with streamlined digital workflows. The role involves designing, coding, and testing Java/SpringBoot back‑end services and React/Redux front‑ends, collaborating with product managers and cross‑functional teams to deliver secure, high‑performance solutions.

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.

Project Services (PS) at Informed Solutions delivers digital transformation for public sector clients, focusing on innovative GIS and location‑based services. As a Full Stack GIS Developer you will design, build and maintain end‑to‑end solutions using .NET, Java, Python, modern JavaScript, cloud platforms and open‑source geospatial tools, collaborating with engineers, designers and delivery managers.

Who We Are:AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014.

HSBC is seeking a Senior Full Stack Developer in Sheffield, United Kingdom, to design and build the applications, dashboards, and services that power the bank's monitoring, alerting, and analytics capabilities. Day-to-day work spans the full technology stack—from backend data services and APIs to interactive frontend visualisations—helping teams gain clear, actionable insight into the health and performance of business-critical systems, including building and supporting real-time streaming solut

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.

Engineering Systems team at Anord Mardix builds and maintains scripts, integrations, and modern web applications for CAD, PDM, and related platforms. The Full Stack Web Developer designs, codes, and supports Node.js web apps, PowerShell automation, REST APIs, and SQL tasks while collaborating with global engineering specialists.

Client Development Team at YourCode builds internal and client‑facing platforms. The Mid Level Full Stack Developer will design, develop, and maintain web applications using C#, Angular and Azure, collaborating with designers and product managers to deliver features and resolve issues.

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.

Mindrift is seeking Freelance Full-Stack Web App Developers for the Tendem project to build interactive browser-based applications for real-world use cases. You will design, build, and maintain functional web apps using JavaScript/TypeScript and Python or Node, covering frontend frameworks, backend APIs, databases, and AI integrations.

IT Development Team at Mountain Warehouse builds and maintains customer‑facing and internal web applications using C#, React and TypeScript. The Senior Full Stack Developer designs, implements and tests microservice‑based solutions, mentors junior engineers and drives best‑practice code quality.

Mindrift seeks a Freelance Full-Stack Web App Developer for the Tendem project to build interactive browser-based applications. You will design, develop, and maintain robust web apps using modern frontend frameworks and backend APIs.

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.

Mindrift's Tendem project builds interactive browser-based applications powered by AI. As a freelance Full-Stack Web App Developer you will design, develop, and maintain full-stack web applications using modern frontend frameworks and Python/Node backends, integrate AI/LLM services, and create supporting Python tools. Remote work from anywhere in Europe, full remote schedule, compensation up to $60/hr.

Internal Platforms team at YourCode builds and maintains internal applications for a leading automotive tech client. The Senior Full Stack Developer designs, codes, tests and deploys web solutions using C#, .NET 6, Angular and Kubernetes on Azure, collaborating with project managers and stakeholders.

E-commerce Agency builds scalable, high‑performance commerce solutions for global brands. Senior Shopify Full Stack Developer leads architecture and development of headless Shopify applications, integrating Gadget.dev and headless CMS platforms while collaborating with design, product, DevOps and QA teams.