Principal Fullstack Engineer

RE Partners

London, UK

3 months ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Job source

find.jobs

Tech stack

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

+4 more

Spring-boot Backend Front End Software Development Api Design

Job 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

Requirements

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

About the company

RE Partners is a technology consulting firm for those leaders that want to become

champions by choosing a partner, not a staffing agency. RE Partners knows that a

digital transformation is more than just technology. We have a successful track

record of being a preferred vendor for Fortune 1000 companies by leveraging the

talent of our global delivery organization and network of technology partners. This

approach has helped a wide-ranging portfolio of global clients reach their goals. The

firm’s dedication to diversity has earned it the Women’s Business Enterprise National

Council (WBENC) certification as a Woman-Owned Business. RE Partners’ current and future success is driven by the diverse experiences and cultures of our global

organization.

About the client

Our client is the third-largest banking institution in the United States that is