We’re Capital on Tap 👋 💳 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. 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. 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! We opened our first Portuguese office in Porto in autumn 2025, and in less than a year it has grown to a team of 50. Lisbon is the next step. We're opening our first office in the city and looking for engineers to join as founding members of the team, helping shape how we build, hire and work here from day one. 🏡🏢 The role starts out fully remote. Once our Lisbon office is open, it will move to a hybrid set-up of two days a week on site. Salary: €55,000-70,000 This is a multiple-headcount role, so please don't be put off if you've seen it advertised for a while. What You’ll Be Doing We’re looking for Senior Full stack Engineers to help us build the best credit card and payment products for small businesses. If you’re looking for an environment where you’re given the freedom to make empowered decisions, research new technologies, and learn/share knowledge with your peers. Then keep on reading! * You’ll build robust and scalable solutions using .Net technology * From the first line of code to production, monitoring, and continuous improvement - you’ll own the SDLC * You’ll craft slick, responsive user interfaces with modern JavaScript frameworks (React), making sure our products don’t just work, they feel great to use * Teamwork makes the dream work - you’ll partner with Product Managers, QA’s, and fellow Software Engineers * You’ll build bulletproof unit and integration tests to keep our software sharp and our users happy * Bugs happen. When they do, you’ll be ready to troubleshoot and tweak as needed * You’ll bridge the gap between tech speak and business goals, ensuring everyone’s on the same page and moving forward together We’re Looking For 🔎 Required skills: * A minimum of 5+ years hands-on experience in C#, .Net Core, SQL Server, ideally JavaScript and React also! * Good testing practices, in both Unit and Integration testing * Good understanding of database technologies * Experience in using Agile development practices * A passion for learning new skills and technologies * A proactive, supportive, and collaborative team player Our Tech Stack * Backend: C#, .Net, .Net Core * Frontend: React, JavaScript * Mobile: Flutter, Dart * Databases: SQL Server, MongoDB * Cloud: Azure & GCP Interview Process 🤝 * First stage: 30-minute intro, CV review, and values with a Talent Partner * Second stage: 45-minute “Tech Chat” with a Team Manager * Final stage: 90-minute Code Pairing + 30-minute Values Interview Diversity & Inclusion 🌈 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. Great Work Deserves Great Perks Check out our benefits: 🏥 Private Healthcare through AdvanceCare 🎁 Anniversary Rewards (€280, €570, €860, 4-week fully paid sabbatical) 🏖️ 36 days holiday (inclusive of public holidays with public holidays carried over if they fall on a weekend) 📖 Annual Learning and Wellbeing Budget 💬 6 free therapy sessions per year 🍫 Free drinks and snacks in our offices Other Info 👍Check out our ‘Top Tips’ for interviewing. ✔️Keep updated on new job opportunities by following us on Linkedin. 📧Email [email protected] if you have any questions. Excited to work here? Apply! 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.)

Senior Software Engineer

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