Software Engineer

About Ctrl Alt Hi, I’m Jack, CTO at Ctrl Alt.  Thanks for stopping by!  Ctrl Alt is designing and operating the on-chain infrastructure powering digital capital markets globally. We bring together a unique blend of expertise in financial markets and cutting-edge in-house technology to deliver tailored, compliant solutions in the alternative assets space. Since launching in 2022, we’ve tokenized over $1.5 Billion in assets across real estate, private credit, funds, litigation finance and more. We’re building a high-performance, people-first culture where ambitious individuals can thrive. We move fast, think big and hold ourselves to a high bar, while keeping things collaborative, open and genuinely fun. At Ctrl Alt ideas win on merit, teams work closely with leadership, and everyone has a voice in shaping what we build next. We believe that hard work should come with real reward. You won’t just join a company - you’ll help build one. Last year alone, we grew from 17 to 50 people, and this year we’re going faster and further. That means real responsibility, meaningful impact, and the opportunity to grow alongside a company that’s redefining the future of finance through the tokenization of alternative assets. If you’re excited by scale-up energy, ownership, and the chance to help shape both a business and a culture, Ctrl Alt is where you can do the most rewarding work of your career. The Opportunity We are always hiring software engineers. This advert stays open because engineering is the constraint on how fast we can build, and we would rather meet good people continuously than scramble when a team needs someone. You will work in a small feature team on the platform that carries real client assets. Solutions reach users in days rather than months. You will work closely with Product to understand the design, with Blockchain Engineering where the platform meets the chain, and with Operations who use what you build every day. The financial logic is complicated, so the work is as much about understanding the problem as writing the code. We do not hire to a fixed level. We shape the role, the scope and the money around the person we meet, so apply whether you are early in your career and moving fast or you have spent years leading systems work. What we look for is the same either way: you can build, you hold yourself and your work to the highest standardscheck your work, and you tell people when something is wrong. This post is based in our Belfast office, on a hybrid pattern of three days a week in the office. Salary is competitive and banded. We agree the band once we have met you and understood the scope you can take on, rather than setting it from a job title. What you’ll be doing: Design, build and maintain performant, flexible and scalable services that carry real client assets Ship features that reach users in days rather than months, inside a small feature team Build on our platform so investors can understand their holdings, manage their portfolios and exercise voting rights on their assets Design and build the APIs institutional partners use to access the platform and place orders Take a loosely defined problem through to a documented, tested and deployed solution Work with Product, Blockchain Engineering and Operations to turn financial logic into working software Hold the line on quality through tests, reviews and the standards the team works to Improve how we build, whether that is tooling, CI/CD, documentation or the way we make decisions Share what you know, in code review, in writing and in time spent with other engineers This role will be a great fit if you: Write TypeScript or JavaScript on the backend and are at home in a framework such as NestJS or Express Care whether the code you ship is performant and efficient, not only whether it works Have designed and built RESTful APIs, and can explain the trade-offs you made Have worked in a team that uses automated testing, CI/CD and peer review, and prefer working that way Hold a high bar for your own work and check it before anyone else has to Raise your hand early when something has gone wrong, and see the fix through Write and speak clearly, because most of what we decide gets written down first Want to understand the finance behind the product, not only the ticket in front of you Nice to haves: Have worked with React and Next.js Have experience of security-first technical architecture Have worked in fintech, capital markets or another regulated environment How we hire Every application is read by someone on our team. Nothing is filtered out automatically and no one is screened out on keywords. Our process has four stages, and we tell you what to expect before each one: A screening call with our recruiting team A competency interview built around how we actually work A technical interview A final interview We aim to come back to you within a week of applying. Before you apply Take your time. We read the cover letter, so a few specific paragraphs about work you have really done will do more for you than a long list of technologies. Tell us what you built, what you decided, and what you would do differently. This advert is open all year because we are always hiring engineers. If the timing is not right for you today, apply when it is. Our Benefits Join a scaling fintech building the next generation of investment banking. You’ll work at the intersection of capital markets and cutting-edge blockchain technology, helping drive and shape the future of financial infrastructure. What it’s like working at Ctrl Alt Build and own the future of finance Take real responsibility in shaping digital capital markets, with the autonomy to lead decisions and drive impact. Solve meaningful problems with exceptional people Tackle complex challenges at the intersection of finance and technology alongside leaders with experience from Morgan Stanley, Credit Suisse, UBS, and Revolut. Grow fast in a high-performance environment Stretch beyond your comfort zone through close collaboration, rapid feedback, and continuous learning. Innovate and make your mark Bring bold ideas to life and influence our platform, products, and how we operate from day one. How we support you Competitive salaries with regular reviews that reflect your impact, performance, and progression. Generous stock options so you directly share in the company’s growth and long-term success. Premium private healthcare to support your physical wellbeing. 26 days of annual leave, plus your birthday off, and regional bank holidays. An enhanced parental leave policy to support you and your family at every stage. A MacBook, screens, and any additional equipment you need to perform at a high level. Access to salary sacrifice schemes covering childcare, groceries, EV cars, tech, pensions, bikes, and subscriptions. Modern, centrally located offices in London, Belfast, Dundalk, and Dubai - designed for collaboration and focus. An annual learning and personal development budget for training, exams, certifications, and qualifications - whatever helps you move forward.