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# Principal Fullstack Engineer

- **Company:** RE Partners
- **Location:** Bristol, UK
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Microsoft Azure, Code Review, Databases, DevOps, Performance Tuning, Query Optimization, ReactJS, Large Language Models, Spring-boot, Backend, Front End Software Development, Api Design
- **Published:** May 17, 2026
- **Apply:** https://find.jobs/jobs-near-me/principal-fullstack-engineer-bristol/2775211570-2/

## About the Role

We are looking for a highly skilled Principal Full Stack Developer with expertise in

Java (Backend) and React (Frontend) to join our team. with strong LLM experience, * Strong backend development experience with Java (preferably Spring Boot)

 * Deep expertise in server-side architecture and API design/development
 * Proficiency in React for frontend development
 * Hands-on experience with LLM/AI tools (e.g., Claude or similar) and integrating AI into applications
 * Experience mentoring UI developers and working in cross-functional teams
 * Solid understanding of databases and query optimization

Preferred Qualifications

 * Exposure to cloud platforms (AWS, Azure, or GCP)
 * Experience with CI/CD pipelines and DevOps practices
 * Strong problem-solving skills with the ability to operate in a fast-paced environment

## Description

* Develop and maintain backend services using Java, with a strong focus on server-side engineering
 * Design and implement scalable, secure, and high-performance APIs
 * Lead backend development initiatives and enforce best coding practices
 * Contribute to the React frontend, ensuring seamless integration with backend systems
 * Work hands-on with LLM/AI technologies (Claude preferred)
 * Mentor UI developers and guide frontend architecture decisions
 * Collaborate with business stakeholders to translate requirements into technical solutions
 * Participate in code reviews, architecture discussions, and performance optimization


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