Senior Software Engineer

As a Senior Backend Engineer, you'll play a key role in shaping the next generation of the platform by:Building and scaling high-performance backend services in GoDesigning and delivering distributed systems capable of handling significant scale and thuputDriving performance optimisation and low-latency architecture initiativesContributing to the modernisation and rewrite of core platform servicesCollaborating closely with platform, infrastructure, and product engineering

Strong commercial experience developing backend systems ideally with Go (Would consider Java or Python)5+ years' experience building scalable, distributed applicationsDeep understanding of concurrency, systems design, and performance optimisationExperience working on low-latency and/or high-throughput platformsComfortable operating in fast-moving, high-growth environmentsInterest in AI-assisted development and modern engineering PackageUp to £135,000 base salary, bonus, equity - Remote first with the expectation to travel to London 2-3 times a quarter

Remote-First | Up to £130,000 + Bonus + Equity We're partnering with one of the fastest-growing cybersecurity companies in the market. Already operating at unicorn status and on track to reach approximately $400M ARR by the end of 2026, the business continues to scale rapidly across the UK and globally. With around 450 employees worldwide, a profitable foundation, and plans to hire over 200 additional team members this year, this is an opportunity to join a high-growth company at a pivotal stage of its journey. As part of a major platform transformation, the engineering team is rebuilding critical systems from the ground up, embracing AI-native development practices and migrating services to Go. The focus is on creating highly scalable distributed systems while driving platform performance towards sub-50ms latency.