Senior software engineer @ 🎽 Pay

Tunic Pay
Tunic Pay

Software Engineering

Posted on Aug 5, 2026
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We’re looking for a scrappy, experienced software engineer based in London to join our fintech startup at the ground floor. This role is a good fit for those who are excited about independence, impact, and contributing to the battle against scams and financial crime. If this sounds like a match for you, read on to learn more ⬇️

About Tunic Pay 🎽

We’re on a mission to rid the world of scams. Last year, consumers reported over 200k scams in the UK alone, and it’s likely that many more went unreported. At Tunic Pay, we’re rearchitecting payments infrastructure to bring that number to 0 by giving unprecedented insight into and control of each transaction. Our core infrastructure is building Payment Intelligence, and eventually the governance for real-time payments.

We are a super early & super fortunate fintech startup — to give you a sense of just how early, we closed our seed round last November 💡, and we find ourselves in the amazing opportunity of working with some of the largest banks in the UK🧤. This is our opportunity to lose. To get there, there are ton of challenges we need to tackle, from crafting delightful experiences that drive conversion through our consumer-facing touchpoints, to integrating diverse data and models to maximize predictiveness, to developing the next generation of security- & privacy-protecting protocols. And as if that’s not hard enough, we are working with some of our customers’ most sensitive data and need to deliver 24/7/365 uptime. Our goals are almost ludicrously ambitious, but scams have to be solved systemically, and we think we’re the team to do it 🦸‍♀️.

We believe in strong in-person collaboration so are requiring 3+ days a week jamming together in our London office (Farringdon).

About us 👋

Nicky (co-founder) previously co-founded Nova Credit, helping immigrants access credit. We’ve served millions of immigrants, raised over $130M (GC, Index, KPCB), built a team of 100+ people across three continents. Before that it was Stanford MBA, Bain, international development, and Cambridge. 🇬🇷-🇬🇧 married to🇰🇷-🇺🇲, parent, intermittent reader/runner, smack talker.

Nico (co-founder) spent the last 4 years as CEO of Casai, LatAm’s largest short-term rental operator with almost 2k apartments in 🇲🇽 and 🇧🇷 and hosted >100k guests. Previously met Nicky as Nova Credit’s first biz hire right after the seed round. Started career @ BCG after studying at Yale 🐶 & Oxford. Born in 🇵🇭 & grew up in Memphis, TN, the birthplace of rock & roll 🎸.

Cyrus (engineering lead) has experience across a wide range of industries and has built large-scale systems in a variety of sensitive contexts from banking 🏦 to defence 🛡️. Has been working with Nicky and Nico since late last year. Ex-Palantir and Morgan Stanley, before that Imperial College. Statistically most likely to be found walking my dog 🐕 and would often rather be climbing rocks 🧗‍♂️.

And here is a lil video about us as humans (feel free to watch @2x 🙈) 👇.

About you 🤓

Here are some thoughts on who would be successful in the role. We know we won’t be able to assess these from your CV, but our interview process will be designed around them:

  • Scrappiness: You can autonomously drive value without the comforts of existing infrastructure, developer tooling, and so on.
  • Systems: You understand how to build fault-tolerant, large-scale distributed systems.
  • Breadth: You are unafraid of jumping into new terrain; you have a propensity for picking up new tools and technologies or perhaps some experience in an adjacent role like data engineering or infrastructure.
  • Abstraction: You enjoy getting stuck into high level architectural design discussions as much as low-level implementation and debugging.

    • Some hard skills we’d value

  • Languages: Modern backend languages such as Java / Scala / Go / Python / Rust.
  • Architecture: Proven track record architecting and maintaining fault-tolerant distributed systems.
  • Data: Experience working in sensitive data contexts and good understanding of data governance practices and privacy concerns.
  • Infrastructure: You’ve worked with cloud technologies (e.g. Docker, Kubernetes, Helm, Terraform), and providers (e.g. AWS, GCP) in the past.
  • Years of experience: 7 or more. We’re looking for professionals who can structure their own work, be a strong technical voice for the team, and balance strategic thinking with getting their hands dirty. But we’re not overly strict on this one.
  • Stage of experience: We value people who have worked in early stage companies and demonstrate fluency with ongoing speed: precision tradeoffs and iterativeness.
  • Industry: We’re building on top of technical payments infrastructure so prior experience in fintech or banking is a plus, but experience building large-scale systems in any sensitive data context will get you off on the right foot.

    • Not got 100% of qualifications? Research shows that women and under-represented minorities are less likely to apply for a role if they do not have 100% of the requirements. We’re paying attention to this, so please feel free to apply regardless (<2mins) or send us a note on info@tunicpay.com if you’d like to discuss if there’s a fit.

    Stuff you’d do

  • Build robust, well-tested, performant backend services that integrate with our customers’ systems to drive down scams.
  • Design intuitive APIs for seamless integration and scalability.
  • Understand and drive adherence to best practices for security, data management, and privacy.
  • Contribute to crucial early technical decision-making: architecture, technical standards, tools, etc.
  • Dive into any and all parts of the stack alongside the backend as needed, e.g. infrastructure, data, front-end.
  • Participate in effective code reviews (on both sides of the table!).
  • Stay up-to-date with industry best practices & technology, including finding ways to be efficient with genAI tooling.

    • Last but not least, the interview process ⏳

    We are seeking to make our interview as experiential as possible in order for both sides to get the most signal on what it would be like to work together.

  • Initial application (<2 mins): Submit your LinkedIn (or CV) in the application link below (we don’t believe in cover letters or unnecessary work here!) 👇
  • Engineering lead meet-and-greet (45 mins): Introductory call with Cyrus — get to know each other a little and do some open-ended problem-solving together.
  • “On-site” (3 hours, can be done remotely): Deep dive interviews with Cyrus focusing on algorithms, systems design and architecture (we’ll share some materials ahead-of-time to help you prepare). Plus some time with the co-founders to better understand the team and the business — this is as much for you as it is for us!
  • References and offer: Ideally over dinner!

    • How to apply 📄

    This role has been filled and applications are now closed.

    Apply now
    See more open positions at Tunic Pay