About the job

Join Sequence as a Senior Product Engineer (Backend) in London, where you will help build the AI-powered revenue platform used by high-growth companies to manage quoting, billing, and revenue recognition. This full-time, on-site role offers £115,000–£130,000 salary, meaningful equity, and visa sponsorship. You’ll take ownership of end-to-end backend systems, designing scalable, reliable infrastructure that handles high-velocity event streams, AI-powered approval workflows, intelligent collections agents, and complex billing pipelines. You will work closely with product and design teams, contribute to distributed systems, role-based access controls, and ensure business-critical infrastructure never fails. The ideal candidate has experience shipping production backend systems, enjoys solving ambiguous problems, communicates clearly, and thrives in a fast-growing, high-impact environment. Sequence values ownership, customer focus, and engineering excellence, offering 25 days holiday plus bank holidays, flexible pension, and opportunities to shape a rapidly scaling product in a lean team.