Senior Developer - Java Spring

Senior Java Engineer

Modern Platform Greenfield Work Collaborative Team

Hybrid - 3 days onsite (flexible days)

Up to 70,000 + benefits (some flexibility for the right person)

We're working with a large, well-established organisation who are continuing to build out a modern, evolving platform that supports real-world operational processes at scale. This is a hands-on role within a pure in-house engineering team, offering a strong mix of delivery, collaboration, and technical influence.

They're looking for a capable Java engineer who enjoys being close to the code, contributes thoughtfully within a team, and is comfortable working in an environment where delivery and improvement go hand in hand.

The Opportunity

You'll join a small, collaborative team working on a relatively new system that is still being shaped and evolved. The work includes a healthy mix of new feature development, iteration, and improvement, with room to influence how things are built without the pressure of owning everything.

The balance between hands-on delivery and higher-level contribution naturally shifts depending on priorities - some weeks are delivery-heavy, others allow more space for refinement, learning, and improvement.

While this role sits at a Senior level, the focus is less on title and more on capability, judgement, and how you approach problem-solving.

What You'll Be Working On

The platform supports a high-throughput operational environment, where software is used directly in day-to-day processes. This includes

Applications supporting workshop and operational workflows

Tablet-based interfaces used in live environments

Integrations with workforce and process management systems

Ongoing development of a relatively new, greenfield platform

You'll be joining a team that values pragmatic engineering and steady improvement.

Tech Environment

The stack is modern and well-supported:

Java / Spring Boot (core focus)

React on the frontend

OpenShift / Kubernetes for most deployments

Full CI/CD pipelines in place

A growing amount of AWS-native development

DevOps experience isn't a requirement. The priority is strong application development, with plenty of opportunity to broaden your skill set over time if you're interested.

What They're Looking For

Solid, hands-on experience with Java and Spring Boot

Comfortable operating at a senior-capable level within a delivery-focused team

Someone inquisitive who asks questions and contributes ideas

Happy collaborating closely with other engineers, product and design

Experience with React is useful, but backend experience is the priority

They're open to different strengths - whether that's delivery, system thinking, mentoring, or continuous improvement - as long as you bring good engineering judgement and a collaborative mindset.

Working Pattern & Culture

Hybrid working - 3 days per week onsite (flexible days, team-aligned)

Teams primarily based in London, with cross-site collaboration

Supportive, low-ego engineering culture

Emphasis on good engineering practices and sustainable delivery

Interview Process

Initial remote conversation

Technical exercise

Final onsite interview

Interested?

If you're a strong Java engineer looking for a senior-level role where you can contribute, learn, and have a real impact without being boxed into a single "type" of engineer, this is a great opportunity to explore.

Apply now or get in touch for a confidential conversation.

Cathcart Technology is acting as an Employment Agency in relation to this vacancy.