Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham
Principal Full-Stack Engineer (Java,React,LLMs)

Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham

Nottingham Full-Time 80000 - 100000 £ / year (est.) No home office possible
RE Partners

At a Glance

  • Tasks: Lead the design and development of scalable backend services and optimise high-performance APIs.
  • Company: Join a leading banking institution driving impactful technology solutions.
  • Benefits: Competitive salary, diverse culture, and opportunities for professional growth.
  • Other info: Dynamic environment with opportunities to mentor and lead innovative projects.
  • Why this job: Work with cutting-edge AI technologies and make a real difference in digital transformations.
  • Qualifications: Strong Java and React experience, plus hands-on LLM/AI skills.

The predicted salary is between 80000 - 100000 £ per year.

We’re hiring a Principal Full-Stack Engineer to join one of the largest banking institutions in the U.S. - a highly complex, high-impact environment where engineering decisions truly matter. This role is ideal for someone who combines deep backend expertise in Java with strong frontend capabilities in React, and hands-on experience working with LLMs (Claude preferred).

What you’ll be doing:

  • Lead the design and development of scalable backend services in Java (Spring Boot)
  • Build and optimize secure, high-performance APIs
  • Contribute to and guide React-based frontend architecture
  • Work hands-on with LLM/AI technologies (Claude or similar), integrating them into real-world applications
  • Drive best practices across code quality, architecture, and performance
  • Mentor engineers and support UI developers in delivering high-quality solutions
  • Partner with stakeholders to translate business needs into technical execution
  • Contribute to system design discussions, code reviews, and continuous improvement

What we’re looking for:

  • Strong experience in Java backend development and server-side architecture
  • Solid React experience on the frontend
  • Hands-on experience with LLMs / AI tools and practical implementation
  • Experience designing and building scalable, distributed systems
  • Strong understanding of APIs, databases, and performance optimization
  • Proven ability to lead technically and mentor others

Nice to have:

  • Experience with GraphDB, Scala, or complex data processing systems
  • Exposure to cloud platforms (AWS, Azure, or GCP)
  • Familiarity with CI/CD pipelines and DevOps practices

Why join us?

At RE Partners, we partner with industry leaders to deliver high-impact technology solutions. We’re not a traditional staffing agency - we operate as a true consulting partner, helping organizations navigate complex digital transformations. Our global team, diverse culture, and strong delivery model have made us a trusted partner to Fortune 1000 companies. If you’re excited about building at scale, working with cutting-edge AI, and operating at a principal level - let’s connect.

Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham employer: RE Partners

At RE Partners, we pride ourselves on being a leading employer in the banking sector, offering a dynamic work environment where innovation and collaboration thrive. Our commitment to employee growth is evident through mentorship opportunities and hands-on experience with cutting-edge technologies like AI and LLMs. Join us to be part of a diverse team that values your expertise and empowers you to make impactful engineering decisions in a high-stakes setting.
RE Partners

Contact Detail:

RE Partners Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving Java, React, and LLMs. This will give potential employers a taste of what you can do and set you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on your technical knowledge and soft skills. Practice coding challenges and be ready to discuss your past experiences in detail. Remember, confidence is key!

✨Tip Number 4

Don’t forget to apply through our website! We’re always on the lookout for talented individuals like you. Plus, it’s a great way to ensure your application gets the attention it deserves.

We think you need these skills to ace Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham

Java
Spring Boot
React
LLMs
API Development
Performance Optimization
Scalable Systems Design
Mentoring
Stakeholder Engagement
Code Quality Best Practices
Database Management
Cloud Platforms (AWS, Azure, GCP)
CI/CD Pipelines
DevOps Practices

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Java, React, and LLMs. We want to see how your skills align with the role, so don’t be shy about showcasing relevant projects or achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to tell us why you’re the perfect fit for this Principal Full-Stack Engineer role. Share your passion for engineering and how you’ve led teams or projects in the past. Let your personality shine through!

Showcase Your Technical Skills: In your application, highlight specific examples of your backend and frontend work. We love seeing real-world applications of your skills, especially with APIs and scalable systems. Don’t forget to mention any experience with cloud platforms or CI/CD!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen on joining our team!

How to prepare for a job interview at RE Partners

✨Know Your Tech Stack Inside Out

Make sure you’re well-versed in Java, React, and LLMs. Brush up on your Spring Boot knowledge and be ready to discuss how you've built scalable backend services and optimised APIs. Prepare examples of your past projects that highlight your technical expertise.

✨Showcase Your Leadership Skills

As a Principal Full-Stack Engineer, you'll need to demonstrate your ability to lead and mentor others. Think of specific instances where you've guided teams or contributed to system design discussions. Be prepared to share how you’ve driven best practices in code quality and architecture.

✨Understand the Business Context

Familiarise yourself with the banking industry and the specific challenges it faces. Be ready to discuss how your technical skills can translate into solving real business problems. This will show that you’re not just a techie but also understand the bigger picture.

✨Prepare for Technical Questions

Expect in-depth technical questions related to backend and frontend development, as well as LLM integration. Practice coding challenges and system design scenarios. This will help you feel confident and articulate during the interview, showcasing your problem-solving abilities.

Principal Full-Stack Engineer (Java,React,LLMs) in Nottingham
RE Partners
Location: Nottingham

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