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Job Description

Senior Software Engineer

Location: London (4 days on site)

We’re looking for a Senior Software Engineer to play a key role in designing, building, and maintaining critical parts of a modern, user-facing platform. This is a hands-on role where you’ll help shape technical direction, mentor other engineers, and ensure systems are robust, scalable, and easy to maintain.

You’ll work closely with product, design, and other cross-functional teams to deliver high-quality solutions that make a real impact, while contributing to a strong culture of engineering excellence.

What You’ll Be Doing

Lead the design and development of complex systems and business-critical features Drive projects involving multiple contributors, ensuring strong technical alignment and high-quality delivery Set engineering standards through code reviews, documentation, and process improvements Take ownership of production systems, proactively monitoring, debugging, and resolving issues Design for resilience, scalability, and observability Act as a trusted technical advisor, translating business needs into effective technical solutions Mentor and support other engineers, sharing knowledge and modelling strong decision-making Contribute to team strategy, planning, and long-term technical direction Participate in (and occasionally lead) in-person daily stand-ups Influence engineering practices and culture beyond your immediate team

Essential Skills & Experience

Strong proficiency in TypeScript Experience building production systems using React, React , Node.js, or similar frameworks Solid understanding of system design, scalable architecture, and full-stack development Experience with platforms and tools such as AWS, Expo, Vercel, or Camunda Ability to write clean, maintainable, well-tested code and conduct thorough code reviews Comfortable owning production systems and handling incidents Confident leading technical discussions, evaluating trade-offs, and aligning stakeholders

Nice to Have

Experience in a high-growth or scaling environment Background in healthcare, fintech, or other regulated industries Familiarity with domain modelling, event-driven systems, or workflow automation

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