Jobs / United Kingdom / Smarkets
Senior Backend Software Engineer
Smarkets · 🇬🇧 London
Sponsorship verdict
No sponsorship evidence yet
No government record and no wording either way. Not a refusal — ask the recruiter.
- No government sponsor record hereThis employer posted directly and does not match a government sponsor register.
- The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
- Can’t check pay against the visa rulesNo salary stated. UK Skilled Worker visa needs at least £41,700 a year (new-entrant (under 26, recent Student/Graduate visa) or STEM PhD: £33,400). Source: https://www.gov.uk/skilled-worker-visa/when-you-can-be-paid-less, rules effective 2025-07-22.
- Confirmed live todayWhen a source last listed this job as open.
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No register record and no sponsorship wording in the posting. Worth asking the employer before investing significant time.
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Sponsor Radar — Smarkets
This employer posted directly and does not match a government sponsor register.
Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Smarkets →
About the role
Who are we? Smarkets: Predicting the Future of Betting Smarkets runs one of the world’s most sophisticated prediction markets, handling over £29 billion in volume since 2010 and engaging 200,000+ traders globally. We’re a technology company that happens to revolutionise betting - from sports to political markets, to delivering the sharpest prices and the fairest odds. Our stack is designed for scale, reliability, and speed: Linux, Kafka, Postgres, Kubernetes, with Python 3, Rust, C++17, and React powering our platform. We build infrastructure that institutions trust while keeping trading accessible to everyone. Our edge? We’ve thrived through every market cycle, competitor, and industry revolution. At the heart of our success are our people. We create a high-performance environment where exceptional talent can thrive, blending deep business experience with a commercial mindset to drive strategic growth. If you’re ready to help shape the future of prediction markets with cutting-edge technology and a customer-first philosophy, Smarkets is where you belong. Responsibilities • Lead the design, development, and optimisation of backend services written in Python and Rust • Architect and build scalable, distributed systems to meet the evolving needs of the platform • Enhance system reliability through robust monitoring and alerting systems • Drive and enforce best practices in code quality, testing, and continuous integration/delivery (CI/CD) • Collaborate with product managers and engineering teams to define and deliver complex, high-impact projects • Mentor and guide engineers across the team, fostering a culture of technical excellence and growth • Drive technical decision-making and contribute to the evolution of our backend architecture • Ensure the performance and stability of critical services by implementing improvements with a forward-looking mindset Role Requirements • 6+ years of experience in software engineering, with a focus on backend systems • Familiarity with Python or at least one compiled language (Java, C++, Rust, Go) and are keen on learning Rust • Proven experience designing and building distributed systems in modern cloud environments (AWS, GCP, or similar) • Deep knowledge of DevOps practices and tools, including GitLab and Kubernetes (K8S) • Strong experience with message queuing systems (e.g., Apache Kafka) and relational databases (e.g., PostgreSQL, MySQL) • Previous experience in Sports Betting or Finance industries is a plus • Excellent communication skills, with a proven ability to collaborate effectively with cross-functional teams • Demonstrated leadership in driving complex technical projects to successful completion Our Values Our values are at the heart of everything we do - guiding how we work, collaborate, and innovate. They reflect what we expect of ourselves and each other to deliver the best results, while fostering a positive, high-performing environment: • Push to Win: We set ambitious goals and relentlessly pursue them, always striving for excellence. • Make Others Better : We lift each other up, share knowledge, and celebrate team success over individual achievement. • Give a Shit: We care deeply about our work, our users, and the impact we make. • Be a Pro : We take ownership, act with integrity, and consistently deliver to a high standard. • Bring the Energy : We bring positivity, curiosity, and enthusiasm to everything we do, inspiring those around us. Culture Fit: These values define how we succeed as a team. If this isn’t you, this may not be the right place. We hire people who thrive in a fast-paced, collaborative, and ambitious environment. Perks & Benefits We offer a competitive salary and benefits package, alongside a dynamic, collaborative environment where