[![Image]() Meet Jobicy Copilot — free AI autofill for job applications + remote job alerts ›](#) [All remote jobs](https://jobicy.com/jobs.md)Open role[![Capital on Tap logo](https://jobicy.com/data/server-nyc0409/galaxy/mercury/2025/06/88542615-221.jpeg)](https://jobicy.com/company/capital-on-tap.md)Remote opportunity at[Capital on Tap](https://jobicy.com/company/capital-on-tap.md) # Software Engineer Review the role, location requirements, compensation details, and application process before deciding whether this opportunity fits your next career move. [Apply for this job](#job-application)[View company](https://jobicy.com/company/capital-on-tap.md)Share24 Sep 2026Published52Listing views1Application actions24 Oct 2026Apply before Opportunity details ## About this role. AI SummaryCapital on Tap is hiring a full-stack Software Engineer to help build credit-card and payment products for small businesses. The engineer will develop scalable C#/.NET services and responsive React interfaces, owning work from implementation through production monitoring and improvement. The role requires at least three years of experience with C#, .NET Core, SQL Server, testing practices, databases, and Agile delivery. It begins fully remote and will transition to a hybrid arrangement with two days per week at the Lisbon office. The position is part of a growing fintech engineering team and emphasizes empowered technical decision-making, collaboration, and continuous learning. ## Role DNA A quick view of the complexity, pace, ownership and collaboration implied by the job description. ### Job Complexity 4/5EasyHard ### Pace & Pressure 4/5RelaxedFast-paced ### Autonomy Level 4/5GuidedFull ownership ### Communication Load 4/5IndependentCollaborative AI insightThis is a mid-level full-stack fintech role requiring production ownership across backend, frontend, databases, testing, troubleshooting, and delivery. The candidate must make sound technical decisions while working closely with product, QA, and engineering stakeholders. ## Salary analysis Estimated compensation compared with the broader EU market for similar roles. Estimated job medianBelow market€47,500EU market range€95k–€130k0€143k AI insightThe disclosed salary range is €40,000–€55,000 yearly, with a midpoint of €47,500. For comparison, the estimated US annual market range for a software engineer with roughly 3+ years of full-stack .NET and React experience is $95,000–$130,000; this US-market comparison is an estimate and is not a conversion of the employer's offer. ## Core skills Skills and capabilities most closely associated with this opportunity. [C#](https://jobicy.com/jobs?search_keywords=C%23.md)[NET Core](https://jobicy.com/jobs?search_keywords=NET%20Core.md)[React](https://jobicy.com/jobs?search_keywords=React.md)[JavaScript](https://jobicy.com/jobs?search_keywords=JavaScript.md)[SQL Server](https://jobicy.com/jobs?search_keywords=SQL%20Server.md)[MongoDB](https://jobicy.com/jobs?search_keywords=MongoDB.md)[Unit Testing](https://jobicy.com/jobs?search_keywords=Unit%20Testing.md)[Integration Testing](https://jobicy.com/jobs?search_keywords=Integration%20Testing.md)[Azure](https://jobicy.com/jobs?search_keywords=Azure.md)[Agile](https://jobicy.com/jobs?search_keywords=Agile.md) Sample interview questionsHow would you design a scalable .NET API for a payment-related workflow?I would start by clarifying the workflow, volume, consistency requirements, failure modes, and security constraints. I would separate domain logic from transport and persistence concerns, use idempotency keys for payment actions, implement robust validation and observability, and protect sensitive data. I would also define integration and contract tests for critical paths before production rollout. Describe how you approach unit and integration testing in a full-stack application. I use unit tests for isolated business rules, edge cases, and error handling, keeping external dependencies mocked or abstracted. I use integration tests for database access, API endpoints, authentication, and critical service interactions. For user-facing flows, I ensure important behavior is covered at an appropriate level and keep the test suite reliable enough to run in CI. What considerations matter when building a React interface for a financial product? I prioritize clarity, accessibility, responsive behavior, and accurate presentation of financial data. I manage loading, error, and empty states explicitly, validate user inputs carefully, and avoid exposing sensitive information in the client. I also use reusable components and predictable state management so the interface remains maintainable as features expand. Tell us about a production issue you investigated and resolved. I would first assess impact, use logs, metrics, traces, and recent deployment history to narrow the cause, and communicate status to relevant stakeholders. I would mitigate user impact safely, validate the fix through monitoring, and document the root cause. Afterwards, I would add tests, alerts, or process changes to reduce the chance of recurrence. How do you communicate technical trade-offs to product managers and non-technical partners? I frame options around user impact, delivery time, reliability, risk, and long-term maintenance rather than implementation details alone. I provide a clear recommendation, explain assumptions and consequences, and invite questions to ensure alignment. This helps stakeholders make informed decisions while preserving technical quality. 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: €40,000-55,000 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 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 3+ 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.](https://www.capitalontap.com/en/blog/posts/acing-your-interviews-with-capital-on-tap/) ✔️Keep updated on new job opportunities by following us on [Linkedin](https://www.linkedin.com/company/capital-on-tap). 📧Email [careers@capitalontap.com](mailto:careers@capitalontap.com) 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.) Show more [Apply now >](https://jobicy.com/jobs/154031-software-engineer-11.md) * ![Upload CV](data:image/svg+xml;base64,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) ### Upload your resume now To unlock remote work opportunities and be discovered by global employers. 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