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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 performance, reliability, and observability across the platform • Partner closely with Product, Data, and other Engineering teams to deliver impactful features • Mentor junior engineers and contribute to a strong engineering culture • Participate in incident response and on-call rotations What You’ll Bring • 5+ years of experience building and scaling backend systems as a software engineer • Experience in cybersecurity, vulnerability management, or threat intelligence • Strong programming skills in one or more languages (Python, Go, Java, etc.) • Experience designing distributed systems and working with microservices architectures • Deep understanding of APIs, system design, and cloud infrastructure (AWS preferred) • Experience working with data pipelines, ETL systems, or high-volume data processing • Proven ability to debug and optimize production systems • Strong ownership mindset with the ability to lead projects independently • Excellent communication skills and ability to collaborate cross-functionally Preferred Qualifications • Familiarity with CVE, NVD, KEV, or exploit intelligence datasets • Experience with streaming systems or real-time data processing • Background in high-growth or startup environments What We Offer We believe people do their best work when they feel supported, trusted, and valued. VulnCheck offers benefits designed to meet a wide range of needs and lifestyles: Benefits and Perks • Unlimited PTO • 401k plan • Comprehensive healthcare coverage • Generous paid parental leave • Remote friendly environment with flexibility • Expense reimbursement for Cell Phone & Internet • Ongoing professional development, coaching, and learning resour

Senior Software Engineer (Cheltenham, UK)

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