Senior Software Engineer – London

£115,000 – £130,000 + Equity | Hybrid (3 days in office)

We’re hiring backend engineers to help build the infrastructure powering a fast-growing AI-driven revenue platform used by modern finance teams.

You’ll work on revenue-critical systems that process high-volume usage events and power billing for B2B companies. This is an opportunity to help design and scale core backend infrastructure while joining early enough to influence major architectural decisions.

What you’ll work on

• Designing and scaling event-driven backend systems
• Building high-throughput data pipelines for billing and usage events
• Architecting systems for reliability, accuracy, and scale
• Working primarily with Kotlin, Spring Boot, and cloud infrastructure

We’re looking for engineers who

• Have 4–10 years of experience as a backend or full-stack engineer
• Have worked in B2B SaaS, Fintech, or high-growth startup environments
• Are proficient in a backend language (Kotlin, Python, TypeScript, Ruby, Java, etc.)
• Are excited to work in a fast-moving, early-stage environment
• Enjoy building scalable systems and data infrastructure
• Russel Group university degree

What’s offered

• £115K – £130K base salary
• Equity
• Hybrid work (London, 3 days in office)
• Early ownership of critical infrastructure at a rapidly scaling company