Senior Full Stack Engineer in London

Join Vitesse, a payments platform redefining the insurance ecosystem. We are a licensed enterprise in the UK, Europe and New York, serving insurers, brokers, MGAs and TPAs with real‐time, global payments and full financial control.

About the role

Senior Full‐stack Software Engineer with a product‐centric mindset. You will shape features, collaborate with product owners, designers and engineers, and own features from architecture to production monitoring.

Core responsibilities

• Design, develop, deploy and support enterprise‐level products.
• Lead the end‐to‐end flow from storyboarding, wireframing and prototyping to UI/backend implementation.
• Prepare low‐fidelity prototypes for internal review and assess technical feasibility.
• Create high‐quality technical documentation with example code.
• Communicate solutions clearly within the team.
• Apply appropriate design patterns and write idiomatic code in the home team tech stack.
• Design schemas, implement asynchronous messaging, RPC handlers and distributed systems.
• Coordinate deployments, database migrations, handling complex error cases.
• Debug production issues and improve scalability, observability and security.
• Deliver large well‐defined tasks and navigate smaller scope problems.
• Own parts of the overall architecture; contribute to hiring, onboarding, mentoring and proposals.
• Assist on‐call engineering for 24/7 support, build and improve engineering tools, solve customer issues.
• Contribute to root cause analysis reports.

Qualifications

• .NET Core (and preferably .NET Framework) – 3+ years.
• React (ideally TypeScript) front‐end experience.
• Distributed microservices architecture with asynchronous event‐driven communication, DDD, and automated CI/CD pipelines.
• Experience with Agile methods and collaborative practices.
• Strong understanding of SOLID, service‐oriented architecture and security best practices.
• Excellent verbal and written communication skills.
• Proactive in updates and stakeholder feedback.
• Passion for contributing to the platform's continued development.

Benefits

• 2 days of volunteering leave.
• Recruitment referral fee of $1,000.
• Medical insurance, basic life & AD&D insurance.
• Mental health therapy partner – Oliva wellbeing platform.
• Sick leave – 5 days.
• Annual leave – 20 days.
• Maternity and paternity leave.
• Voluntary critical illness and accident insurance (employee paid).
• Employee Assistance Program.
• Ongoing learning & development.
• Commuter benefits.

We are an Equal Opportunity Employer. We are committed to creating an inclusive home for all, where all are treated fairly, respected, and valued. If you need interview adjustments or have accessibility requirements, please contact Clara Moretti‐Parker at clara.moretti-parker@vitesse.io.

Our values – "Vitesse at Our Best"

• Confident Humility: We listen, learn, leave ego at the door, ask for help and celebrate collective success.
• Driven to Succeed: We hold high standards, take pride in what we deliver, and push for meaningful outcomes for our customers and partners.
• Tenacious Responsibility: We own our work, decisions, and results, face challenges with resilience, and complete tasks thoughtfully.