Software Engineer
LB480
Posted: 30/06/2026
- £95,000 - £120,000
- London Area
Senior Software Engineer (Kotlin) - GreenTech Sector 🌱
💰 £95,000 - £120,000 + bonus + excellent Benefits
📍 Hybrid - 2 days onsite in Central London (Zone 1)
Are you a Senior 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, product-centric engineering team building modern, customer-facing and energy-focused systems in one of the UK’s most exciting clean tech scaleups.
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.
💻Kotlin (JVM), SpringBoot, Ktor, http4k, AI tooling, distributed systems, microservices, CI/CD, AWS, modern engineering culture
What They're Looking For
- Senior JVM/backend experience; Kotlin is a bonus, but not required.
- Strong systems thinker with a track record of architectural leadership/contribution.
- Experience scaling production systems in fast-moving product environments (ideally startups/scaleups)
- 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. 🚗🔌
Charlotte Young
Head of Java & Kotlin Recruitment