Full Stack Software Engineer

Capital on Tap

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!  🏡🏢This is a hybrid role, our engineering teams work from our Matosinhos office Office 2 days per week. 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) 🚘 Paid Car Parking 🏖️ 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 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.)

Ameba

Full-Stack Software Engineer at Ameba Engineering at Ameba is a rare opportunity to build cutting-edge software in a traditional industry, while being generously rewarded for your contributions. If you’ve never considered working in supply chains before, everything around you, including the device you're reading this on, has a story of how it got there. Raw material to finished product, that story is the supply chain. If the unseen machinery of the world sparks something in you, we'd love to talk! We're a startup made up of experienced entrepreneurs (who have previously raised $160m+) and builders (ex-Meta, Palantir, Microsoft, Quant Devs, UnlikelyAI). We have big ambitions and are backed by some of the most successful investors in Europe. We’ve raised over $9M since our launch just over a year ago. Your Role as a Full-Stack Engineer As a Full-Stack Engineer, you will collaborate closely with our CTO and engineering team to design, build, and launch products from conception to launch. This involves working across the entire stack — from front-end (written in React/TypeScript), back-end (written in Kotlin and Python), machine learning (agentic workflows, entity matching), to infrastructure (AWS, Docker). Working at a startup so early, it's common to kick off a feature on Monday, and have users use it on Friday. You should be comfortable working with these tight feedback loops and long to build a product that users love. Don't worry if you lack experience in any of these areas - your application is still welcome! Life at Ameba We pride ourselves on providing top-of-market salaries and generous equity packages to all employees. We're assembling a lean team of exceptionally talented individuals and aim to reward them accordingly. * We enjoy collaborating together in the office, typically five days a week, for easy, high-bandwidth conversations. While we provide flexibility to work from home when necessary, our primary focus at this early stage is creating a strong office-first experience. * We offer 28 holiday days per year, and we shut down entirely over the holiday season for 2 weeks, allowing everyone to disconnect completely. * We provide four months of maternity and paternity leave at 100% salary. * We offer comprehensive healthcare and dental cover. * The salary range for this role is £80,000-£130,000 + generous equity. The salary for this position is determined by several factors, such as experience, relevant skills, business needs, or market demands. * You will have the opportunity (if you want it) to visit customers at their place of work, both in the UK and outside it! We currently work with customers in Portugal, the Netherlands, and more. Qualifications Essential: * Minimum 3 years of experience as a software engineer. * 2+ years of experience with React/TypeScript and an Object-Oriented Programming Language (Java, Scala, Kotlin, C#, C++). * Proven experience in building and shipping software, involving collaboration with other engineers, designers, product managers, and users to identify and implement solutions based on customer needs. * 1+ years of experience contributing to the system design or architecture (architecture, design patterns, reliability and scaling) of new and existing systems. Desirable: * Undergraduate or Masters degree in Computer Science (or related fields). * Experience with AWS and Docker. * Interest in AI, and familiarity with building LLM-based agents. * Exposure to contract-first development (OpenAPI, gRPC/Protocol Buffers). * Ability to design scalable and efficient system architectures. * Ability to navigate rapidly changing priorities in a growing startup environment. * [Optional] Previous experience working at a startup or a keen interest in startups

Faculty

WHY FACULTY? We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here. We don’t chase hype cycles. We innovate, build and deploy responsible AI which moves the needle - and we know a thing or two about doing it well. We bring an unparalleled depth of technical, product and delivery expertise to our clients who span government, finance, retail, energy, life sciences and defence. Our business, and reputation, is growing fast and we’re always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology. AI is an epoch-defining technology, join a company where you’ll be empowered to envision its most powerful applications, and to make them happen. ABOUT THE TEAM In our Professional and Financial Services Business unit, we bring everything we have learned in more than a decade of Applied AI, and use it to help our clients navigate a rapidly changing landscape. We develop and embed AI solutions which help financial institutions become more efficient, enhance customer experience, and find the commercial upside in uncertain markets. Within the constraints of a highly regulated industry, we see so much opportunity for impactful innovation and are proud to set the gold-standard for marrying technical excellence with safe deployment. ABOUT THE ROLE As a Full Stack Software Engineer, you will collaborate with cross-functional teams to build and scale AI-powered systems that solve unique challenges for global clients. This is an opportunity to take ownership of the entire stack, turning sophisticated machine learning outputs into high-impact, production-ready solutions that drive real-world transformation. WHAT YOU'LL BE DOING: * Creating reliable, reusable, and scalable frontend and backend architectures to enable the seamless delivery of advanced AI systems. * Leading engineers within cross-functional teams—alongside Data Scientists and Product Managers—to deploy technically sophisticated, high-impact software. * Designing and architecting robust project frameworks that maintain a balance between rapid prototyping and long-term maintainability. * Acting as a technical authority for full-stack development within your delivery unit to ensure best practices are met. * Providing deep technical expertise to customers, helping them navigate complex requirements and architectural scoping. WHO WE'RE LOOKING FOR: * You bring extensive experience in TypeScript and modern frontend frameworks like React or Vue, paired with a strong eye for intuitive UI/UX design. * You possess solid backend development skills in Python or TypeScript frameworks (such as FastAPI, Flask, or Django) and are comfortable managing the full application lifecycle. * You are experienced in deploying software within cloud environments like AWS, Azure, or GCP, ideally using containerisation tools like Docker. * You demonstrate a scientific and pragmatic mindset, testing assumptions and balancing big-picture vision with the technical details required for execution. * You thrive in autonomous, fast-paced environments where you can take full ownership of problems and collaborate directly with clients to define technical strategy. * You are a compelling communicator who enjoys working in a team-oriented culture and has a relentless drive to learn and apply novel technologies. OUR INTERVIEW PROCESS 1. Talent Team Screen (30 minutes) 2. Pair Programming Interview (90 minutes) 3. System Design Interview (90 minutes) 4. Commercial Interview (60 minutes) OUR RECRUITMENT ETHOS We aim to grow the best team - not the most similar one. We know that diversity of individuals fosters diversity of thought, and that strengthens our principle of seeking truth. And we know from experience that diverse teams deliver better work, relevant to the world in which we live. We’re united by a deep intellectual curiosity and desire to use our abilities for measurable positive impact. We strongly encourage applications from people of all backgrounds, ethnicities, genders, religions and sexual orientations. Some of our standout benefits: * Unlimited Annual Leave Policy * Private healthcare and dental * Enhanced parental leave * Family-Friendly Flexibility & Flexible working * Sanctus Coaching * Hybrid Working If you don’t feel you meet all the requirements, but are excited by the role and know you bring some key strengths, please don't hesitate in applying as you might be right for this role, or other roles. We are open to conversations about part-time hours.