Senior Software Engineer (Kotlin) in City of London
New Yesterday
Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide.
We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers.
Job Description
Senior Software Engineer (Kotlin)
\n
£85,000 - £95,000 + bonus + excellent Benefits
\n
Hybrid - 2 days onsite in Central London (Zone 1)
\n
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?
\n
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.
\n
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.
\n
What You'll Do
\n
\n
Design, build and evolve platform architecture across distributed systems.
\n
Analyse production systems to uncover and resolve performance issues.
\n
Contribute to 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
\n
Tech & Environment
\n
\n
Kotlin (JVM), distributed systems, microservices, CI/CD
\n
Cloud- platforms (AWS/GCP), modern engineering culture
\n
\n
What They're Looking For
\n
\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
\n
Want to work on complex problems with real-world environmental impact?
\n
Apply now and help shape the future of clean energy at scale
If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.
- Location:
- City Of London
- Job Type:
- FullTime