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Lead Software Engineer @ Capital On Tap

Bunhill Row 103-105, LondonOnsiteFull-time
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About this role

Salary: £43,000 - 83,000 per year

Requirements: Extensive commercial experience with C# and .NET, capable of writing clean, well-tested, production-grade codeStrong experience designing and building microservices and distributed systemsSolid grounding in RESTful API design and Azure cloud developmentDeep familiarity with modern software development practices and scalable system architectureExperience working cross-functionally with Product, QA, and other stakeholdersPragmatic approach to delivery; you know how to ship an MVP and iterate with purposeAbility to embed deeply within an engineering group, building strong domain knowledge over time and becoming a trusted technical voice across the team and wider businessReact or fullstack experience is a plus Responsibilities: Stay deeply hands-on in day-to-day software development, setting the technical standard through the quality of your own workDesign and evolve microservices and distributed systems that are scalable, resilient, and maintainableAct as the technical authority in your area; youll be the person engineers turn to when they hit a hard problemConduct thorough code reviews and share knowledge that raises the bar across the teamLead high-impact projects from concept to delivery, making pragmatic architecture decisions along the wayCollaborate closely with Product, QA, and Team Leads to align technical execution with business goalsIdentify and mitigate technical risk proactively, keeping delivery on trackChampion engineering best practices, including adoption of AI tools and automation Technologies: AIAPIAzureC#CloudFullstackReactmicroservicesASP.NETCTO More:

Were Capital on Tap, a financial platform built to help small businesses run more easily. We offer a business credit card, an SME-focused spend management platform, a savings product, and a growing suite of tools and financial products. Were a profitable company with 1,000+ employees, 20bn in annual card spend, 200,000+ customers, and 17,000+ Trustpilot reviews averaging 4.7 stars. This is a hybrid role, with our Engineering team working from our London (Moorgate) offices 2 days per week. We offer private healthcare including dental and opticians through Vitality, worldwide travel insurance, anniversary rewards, a salary sacrifice pension scheme with up to 7% match, 28 days holiday plus bank holidays, an annual learning and wellbeing budget, enhanced parental leave, a cycle to work scheme, season ticket loan, 6 free therapy sessions per year, dog-friendly offices, and free drinks and snacks. Our offices also include a pool table, arcade machine, beer tap, and office dogs. We welcome applications from anyone who shares our commitment to inclusivity.

last updated 36 week of 2026

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