Understanding Recruitment provided pay range

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Team Lead at Understanding Recruitment Helping Tech Companies Build High-Performing Software Engineering Teams

Senior Software Engineer (Kotlin)

Hybrid - 2 days onsite in Central London (Zone 1)

Are you a JVM engineer curious about Kotlin – or already loving it? Want to solve complex problems that contribute to a greener, more sustainable world?

Join a high‑calibre engineering team building modern, customer‑facing and energy‑focused systems in one of the UK’s most exciting clean tech companies.

You’ll join one of their core teams, diving deep into production systems, identifying bottlenecks, and driving long‑term architectural decisions that support scale, resilience and product growth.

What You’ll Do

• Design, build and evolve platform architecture across distributed systems.
• Analyse production systems to uncover and resolve performance issues.
• Contribute to backend design using Kotlin (or JVM), supporting a polyglot mindset.
• Collaborate across engineering to improve practices, tooling, and system design.
• Mentor and influence technical direction company‑wide.

Tech & Environment

What They’re Looking For

• Deep JVM/backend experience; Kotlin a bonus, but not required.
• Strong systems thinker with a track record of architectural leadership.
• Experience scaling production systems in fast‑moving product environments.
• Clear communicator who enjoys cross‑functional collaboration and technical ownership.

Want to work on complex problems with real‑world environmental impact?

Apply now and help shape the future of clean energy at scale.

Referrals increase your chances of interviewing at Understanding Recruitment by 2x

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Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Information Technology and Engineering

Industries

Software Development