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# Lead Full Stack Developer

- **Company:** EPAM Systems, Inc.
- **Location:** Epsom, United Kingdom
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Artificial Intelligence, HTML5, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Cascading Style Sheets (CSS), Software as a Service, Cloud Computing, Cloud Engineering, Databases, Relational Databases, Github, Python (Programming Language), OAuth, Openid Connect, Standard Sql, Single Sign-On, Software Engineering, TypeScript, Enterprise Software Applications, ReactJS, Large Language Models, Multi-Agent Systems, Software Security, Generative AI, Backend, Agentic-AI, Git, Event Driven Architecture, AI Platforms, Front End Software Development, Restful APIs, Docker, Databricks, Web Api
- **Published:** November 13, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/lead-full-stack-developer/55866741

## About the Role

Strong experience developing production applications using React
Proficiency in TypeScript, JavaScript, HTML5 and CSS3
Professional experience with .NET/C# or Python development
Experience designing and developing secure REST APIs and Back End services
Hands-on experience with Microsoft Azure and Databricks
Understanding of generative AI, large language models and AI-enabled application development
Strong knowledge of SQL, relational databases and enterprise system integration
Experience with Git-based development workflows and GitHub Actions CI/CD pipelines
Understanding of authentication, authorization, application security and cloud operations
Strong analytical, problem-solving and stakeholder communication skills

Nice to have
Knowledge of retrieval-augmented generation (RAG), agent-based workflows or AI orchestration patterns
Experience with asynchronous processing, messaging or event-driven architectures
Familiarity with Docker and containerized application deployments
Experience working with OAuth 2.0, OpenID Connect and single sign-on solutions
Exposure to monitoring, observability and production support practices

## Description

We are looking for a Lead Full Stack Developer to join our team in London and help deliver scalable, secure and cloud-based applications. This role combines full-stack software engineering, AI enablement and modern cloud development. The successful candidate will have strong experience in Front End and Back End development, hands-on expertise with Azure and Databricks and the ability to design reliable solutions that support complex business needs., Design, develop and maintain scalable full-stack applications using modern technologies
Build responsive user interfaces with React, TypeScript and related Front End technologies
Develop secure REST APIs and Back End services using .NET/C# or Python
Create reusable components, shared services and maintainable application architectures
Develop and integrate solutions using Azure and Databricks services
Implement AI-powered functionality using large language models, AI services and modern engineering frameworks
Design and support integrations with enterprise applications, databases and external APIs
Contribute to CI/CD pipelines, automated testing and software delivery processes
Ensure application security, reliability and performance through monitoring and best practices
Collaborate with cross-functional stakeholders to deliver technical solutions and continuous improvements