Senior Software Engineer

<div class="content-intro"><p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;"><strong>We’re Capital on Tap 👋<br></strong></span><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;">💳 Capital on Tap started because small businesses were underserved. Big banks were slow, their products weren't fit for purpose, and small business owners often couldn't access what they needed. We set out to fix that.</span></p> <p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;">Today we're a financial platform - not just a credit card company. We offer a best-in-class business credit card, SME-focused spend management platform, a savings product that hit £1 billion in funds within its first year, and a growing suite of tools and financial products that make running a small business easier.&nbsp;</span></p> <p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;">1,000+ employees, £20bn in annual card spend, 200,000+ customers, 17,000+ Trustpilot reviews averaging 4.7 stars, and we're profitable. We’ve done a pretty good job so far, but we’re just getting started!&nbsp;</span></p></div><p><span style="font-family: helvetica, arial, sans-serif;">🏡🏢This is a hybrid role, our engineering teams work from our London (Moorgate) Office 2 days per week.</span></p> <p><strong>The Role</strong></p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">We're looking for Senior Software Engineers to help us build the products that small businesses across the UK and US rely on every day. You'll work across cross-functional teams alongside Product Managers, QA Engineers, and fellow Software Engineers, owning problems end to end, from the first line of code through to production, monitoring, and continuous improvement.</p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">This isn't a role for someone who wants to be handed a ticket and told what to build. We're looking for engineers who understand the problem, challenge the approach when it needs it, and take pride in the quality of what they ship. We only build what the customer wants.</p> <p class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><br><span style="font-family: helvetica, arial, sans-serif;"><strong>What You’ll Be Doing</strong> </span></p> <ul> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Designing and building robust, scalable solutions in .Net/C#, taking full ownership of the SDLC from concept through to production</span></li> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Playing an active role in architectural decisions and technical direction, shaping how things are built, not just building them</span></li> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Working closely with Product and QA, bringing your technical perspective early and often</span></li> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Writing bulletproof unit and integration tests and holding a high bar for code quality across the team</span></li> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Communicating clearly across technical and non-technical stakeholders, translating complex engineering decisions into business context</span></li> <li class="font-claude-response-body break-words whitespace-normal leading-[1.7]"><span style="font-family: helvetica, arial, sans-serif;">Mentoring and supporting engineers around you, raising the standard of the team as well as your own output</span></li> </ul> <p><span style="font-family: helvetica, arial, sans-serif;"><strong>We’re Looking For 🔎</strong><strong><br></strong>Required skills:</span></p> <p><span style="font-family: helvetica, arial, sans-serif;"></span></p> <ul> <li class="font-claude-response-body whitespace-normal break-words pl-2">5+ years of hands-on experience in C#, .Net and SQL Server; React and Typescript are a strong plus</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">A clear sense of what senior means. Not just years in the seat, but ownership, judgement, and the ability to operate with ambiguity</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Strong testing practices across unit and integration testing</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Broad engineering knowledge that goes beyond your core stack; the kind of depth and curiosity that comes from solving hard problems in complex, distributed systems</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">The ability to communicate clearly and confidently, with your team, with Product, and with the wider business</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Experience working in agile, cross-functional teams</li> <li class="font-claude-response-body whitespace-normal break-words pl-2">Someone who's proactive, direct, and makes the people around them better</li> </ul> <p><span style="font-family: helvetica, arial, sans-serif;"></span></p> <p><span style="font-family: helvetica, arial, sans-serif;"><strong>Our Tech Stack</strong></span></p> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Backend: C#, .Net, .Net Core</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Frontend: React, Typescript</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Mobile: Flutter, Dart</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Databases: SQL Server, MongoDB</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Cloud: Azure &amp; GCP</span></li> </ul> <p><span style="font-family: helvetica, arial, sans-serif;"><strong>Interview Process 🤝</strong></span></p> <ul> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">First stage: 30-minute intro, CV review, and values with a Talent Partner</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Second stage: 45-minute “Tech Chat” with a Team Manager</span></li> <li style="font-family: helvetica, arial, sans-serif;"><span style="font-family: helvetica, arial, sans-serif;">Final stage: 90-minute Code Pairing + 30-minute Values Interview</span></li> </ul> <p><span style="font-family: helvetica, arial, sans-serif;"><strong>Diversity &amp; Inclusion </strong>🌈<strong><br></strong>We welcome, consider and encourage applications from anyone who shares our commitment to inclusivity. Join us in creating a space where authenticity thrives, and everyone can do their best work.</span></p> <p><strong>Great Work Deserves Great Perks</strong></p> <p>We try not to take ourselves too seriously (all the time) so we make sure our office is decked out with a pool table, arcade machine, beer tap, and a couple of office dogs thrown in for good measure. Check out our benefits:<br>🏥 Private Healthcare including dental and opticians services through Vitality<br>✈️ Worldwide travel insurance through Vitality<br>🎁 Anniversary Rewards (£250, £500, £750, 4-week fully paid sabbatical)<br>👛 Salary Sacrifice Pension Scheme up to 7% match<br>🚘 Octopus EV Salary Sacrifice Scheme<br>🏖️ 28 days holiday (plus bank holidays)<br>📖 Annual Learning and Wellbeing Budget<br>👪 Enhanced Parental Leave<br>🚲 Cycle to Work Scheme<br>🚂 Season Ticket Loan<br>💬 6 free therapy sessions per year<br>🐶 Dog Friendly Offices<br>🍫 Free drinks and snacks in our offices</p> <p>&nbsp;</p><div class="content-conclusion"><p><strong><span style="font-size: 12pt; font-family: verdana, geneva, sans-serif;">Other Info<br></span></strong><span style="font-size: 12pt; font-family: verdana, geneva, sans-serif;">👍Check out our&nbsp;<a href="https://www.capitalontap.com/en/blog/posts/acing-your-interviews-with-capital-on-tap/">‘Top Tips’ for interviewing.</a><br></span><span style="font-size: 12pt; font-family: verdana, geneva, sans-serif;">✔️Keep updated on new job opportunities by following us on <a href="https://www.linkedin.com/company/capital-on-tap">Linkedin</a>.<br></span><span style="font-size: 12pt; font-family: verdana, geneva, sans-serif;">📧Email <a href="mailto:careers@capitalontap.com">careers@capitalontap.com</a> if you have any questions.</span></p> <p><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;"><strong>Excited to work here? Apply!<br></strong></span><span style="font-family: verdana, geneva, sans-serif; font-size: 12pt;">If you’d like to progress your career within our fast growing, profitable fintech then click apply and we will aim to get back to you within 3 working days (during busy periods this could take up to 5 working days.)</span></p></div>