Hi, we’re Griffin! We’re the bank for companies who want to build and launch financial products.
Our contextWe're rapidly heading towards a future where most of us access financial services through technology companies rather than high street banks. All sorts of companies are now embedding financial products into their apps and user journeys so that their customers can seamlessly make payments, manage expenses, take out loans, save, invest, and do more.
The problem is that companies are still dependent on legacy banking infrastructure if they want to offer regulated financial products. They need to either partner directly with an incumbent bank and/or stitch together middleware from various Banking as a Service (BaaS) providers. This process is slow, expensive, and complex and makes it very hard for companies to get new financial products off the ground.
At Griffin, we want to change this.
Our purposeWe want to make it easy for companies to bring finance to their customers at the point of greatest relevance. So, we built a bank.
But not just any bank! Griffin is a technology platform and a bank: fully regulated, API-first, developer-centric, and purpose-built to serve innovative fintechs and brands who want to build and embed financial products.
Learn more about what we do.
Our cultureOur culture is our most important asset, and one of the ways we safeguard it is by being extremely intentional about hiring the right people. We won't hire people who don’t seem like a strong fit for our core values, even if they're otherwise extremely qualified.
We also believe that smart, motivated, conscientious people thrive in high-trust, high-autonomy environments. That’s why we’re transparent by default, and we encourage open discussion and challenge across all levels of the organisation. We’re also remote-first, asynchronous, and fully flexible - because you're the expert on how and when you do your best work.
Learn more about our culture.
The TeamThe Craft function has seven small, cross-functional engineering teams - each with engineers, an engineering manager, and a product manager, working closely with designers. You'll join one team that owns a product area end-to-end.
When we start work, we explore multiple solutions before picking one. You'll write RFCs, build proof-of-concepts, and run experiments to validate approaches. Once we commit to building something, we care about maintainability more than cleverness, observability more than hoping it works, and scalability more than premature optimisation. We ship quality code over hitting arbitrary deadlines. Once something goes live, we refactor the rough edges rather than polish what's already working
Right now, we're building card issuing from scratch, going direct on Faster Payments, enabling cross-border payments, and building term deposit accounts. Day to day, this means: writing the reconciliation systems that process millions of FPS transactions, implementing double-entry accounting that tracks card spending and settlements, designing webhook infrastructure with message signing and replay protection, building API versioning that lets us evolve without breaking customers, or creating payment approval workflows that satisfy both user experience and compliance requirements.
Success here is about impact beyond your own code: improving how we work, making other engineers more productive, and building systems that our customers (other developers) actually want to use. This looks like:
redesigning the transaction reconciliation service to handle 10x throughput before we hit FPS volume limits
fixing the root cause of webhook delivery failures so we stop getting paged at 3am
building a Bazel rule that cuts build times in half for the whole team
writing an RFC that becomes the pattern we use for all event-driven services
pairing with another engineer to help them reason through FoundationDB transaction semantics
owning card issuing from initial RFC through to processing the first live transaction - making every architecture and implementation decision along the way.
What you'll own
The technical decisions on your projects - you'll write the RFCs, choose the architecture, and decide when to extend existing systems versus rebuild them
Delivery from customer problem to live feature - you'll work with PMs to shape what gets built, then own getting it into production
Setting technical direction - your code reviews, implementation patterns, and architectural choices influence how the wider team builds software
Production responsibility - the systems you build are yours to monitor, debug, and improve when issues arise
You'll fit well here if you come from one of these backgrounds:
Functional programming - you've shipped production Clojure, Elixir, Erlang, Haskell, Scala, or Scheme in a professional setting, or you've built substantial personal projects that demonstrate deep functional programming experience
Fintech domain expertise - you've worked in payments, accounts, ledgers, or compliance where you've dealt with money movement, reconciliation, and regulatory requirements
Beyond that, you'll need:
Strong software fundamentals and distributed systems knowledge - you understand consistency models, idempotency, and the failure modes that actually matter in production
Experience working in product-focused, collaborative teams - you've shaped what gets built alongside PMs and designers, not just implemented specs
Comfort with startup pace and ambiguity - priorities shift, requirements evolve, and you adapt without needing perfect clarity upfront
What can we offer you?
We are an early stage startup and we're working hard to expand our benefits package. We're planning to add to this list in the future.
Remote-first flexibility: Work from anywhere in the UK
Time off: 25 days’ holiday, bank holidays and a winter break (we shut down between Christmas and New Year)
Share options: Own a part of what we’re building together
Work from abroad: Up to 20 days a year
Pension: Auto-enrolment into our Penfold scheme
Insurance: Private medical with Bupa (including family cover) and life insurance with AIG
Wellbeing: 1:1 coaching and therapy session available through Oliva
Family leave: Enhanced parental leave with up to 6 months on full pay after two years’ service
AI tools: Everyone has a Claude subscription on us and access to other premium tools
Your setup: We’ll support you in creating a comfortable and effective WFH environment.
As a bank, we’re committed to maintaining the highest standards of security. This means that the successful candidate will need to complete background screening, and our offer will be conditional upon satisfactory review of these checks. This would include verification of right to work, criminal record, credit history, social media and professional reference checks.
How long will the process take?We move as fast as possible, but it normally takes us about 2-3 weeks to get to know to each other.
Step 1: An initial phone call with our Talent Team for us to tell you more about Griffin and learn about your recent experience.
Step 2: A task based on what you’ll be doing on a day to day at Griffin.
Step 3: Meet your manager to talk through your experience and how that relates to the requirements.
Step 4: Meet with peers in your team for a more in-depth technical interview.
Step 5: Culture and Founder interview: Learn more about this here.
Are we your next move? Apply via the link below, if there's a match our Talent team will reach out to schedule an initial conversation and talk you through what happens next.
We’re remote-firstWe have a small London office in Moorgate, but we are comfortable hiring people to work from anywhere in the UK. About a third of the company is based within occasional commuting distance of London, the rest are full-time remote.
Under representationOur goal is for Griffin to proportionally represent the diversity of the working population in society. We’re working to ensure that Griffin is a supportive, empowering and inclusive environment for every member of our team — whatever your combination of race, ethnicity, gender, age, sexual orientation, physical ability, nationality, neurodiversity, and religious beliefs. If you’re part of a group that is under-represented in fintech, we’d love to hear from you.
Griffin Bank Ltd request that recruitment agencies do not speculatively submit CVs to any employee or associate of our company unless explicitly asked to do so by a member of our Talent team.Any CVs sent to any member of our team on a speculative basis will not be recognised and we will not accept liability for any fee or commission should we subsequently employ a candidate who applied to us directly or was introduced by an instructed agency that may also have been submitted speculatively by an uninstructed agency.
