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Senior Software Engineer (C# / JavaScript)

Formula. | city of london, greater london, United-Kingdom | Posted June 11, 2026

Position Overview

Senior Backend Engineer Location: London, Hybrid (2 Days Onsite)
Salary: £90,000 - £105,000 + Competitive bonus

We're working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions.
They are looking for a Senior Backend Engineer with deep expertise in JVM technologies to help scale and enhance their high-performance systems. There will be a requirement to use Kotlin moving forwards! This is an opportunity to work with modern architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment.
Responsibilities
Play a key role in shaping and maintaining the backend infrastructure, built on a modern JVM stack
Write clean, well-tested, production-ready code that the team can rely on
Bring fresh ideas to the table — chal...

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