Senior Software Engineer (Kotlin)

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Up to £105,000 + bonus + excellent Benefits

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

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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?

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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.

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You'll lead 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.

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What You'll Do

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\n Own and evolve platform architecture across distributed systems. \n

Analyse production systems to uncover and resolve performance issues. \n

Lead backend design using Kotlin (or JVM), supporting a polyglot mindset. \n

Collaborate across engineering to improve practices, tooling, and system design. \n

Mentor and influence technical direction company-wide. \n

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Tech & Environment

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\n \nKotlin (JVM), distributed systems, microservices, CI/CD \n

Cloud- platforms (AWS/GCP), modern engineering culture \n

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What They're Looking For

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\n Deep JVM/backend experience; Kotlin a bonus, but not required. \n

Strong systems thinker with a track record of architectural leadership. \n

Experience scaling production systems in fast-moving product environments. \n

Clear communicator who enjoys cross-functional collaboration and technical ownership. \n

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

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