Senior Software Engineer (Cheltenham, UK)

Sr. Software Engineer - Cheltenham, UK Location: Cheltenham, UK Team: Product & Engineering Employment Type: Full-Time, Remote About VulnCheck Exploitation prevention is only as strong as the intelligence driving those efforts, and most of the industry is still running on intelligence that lacks exploit context. VulnCheck, The Exploit Intelligence Company, delivers structured exploit intelligence on what is actively weaponized in the wild, purpose-built for the data lakes, ETL pipelines, automation, and AI and LLM workflows your infrastructure already runs on, raising the capability of everything it powers. About the Role We’re looking for a Senior Software Engineer to design, build, and scale the core systems that power VulnCheck’s vulnerability intelligence platform. This is a high-impact, hands-on role where you’ll own critical services and data pipelines end-to-end—from design through production. You’ll play a key role in shaping architecture, improving system performance and reliability, and delivering features that directly impact customers. While you’ll help resolve production issues, your focus will be on building durable, scalable solutions that prevent them. Although this is a 100% remote role, candidates must be located in or around Cheltenham, United Kingdom. What You’ll Do • Design and build scalable backend systems, APIs, and data pipelines • Own services end-to-end, including architecture, development, deployment, and operation • Lead technical design discussions and contribute to system architecture decisions • Write high-quality, maintainable code and drive engineering best practices • Debug complex production issues and implement long-term, scalable solutions • Improve system perfo