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Software Engineer (Frontend)
Software Engineering
London, UK
Posted on Sep 26, 2026
Software Engineer Frontend
This is a hybrid role that requires 3 days/week in our London (Fitzrovia) office
About Lorum
The structural conflict at the centre of correspondent banking is not technological. It is economic. Banks earn revenue from their balance sheets: they lend deposits, capture FX spreads, and hold funds as long as it is rational to do so. Clearing, the act of releasing funds quickly and predictably, competes directly with those economics. An institution designed to lend has a structural incentive to hold deposits; an institution designed to clear has an incentive to release them. When one institution does both, clearing loses. The result is unpredictable settlement, trapped capital, and a correspondent network shrinking by design.
Why Lorum
Lorum was founded on a different premise: clearing as the business, not a byproduct. The model has been operational since 2023 and grew 55x in 2025, with USD clearing now the majority of volumes alongside a growing treasury offering. We have applied for a U.S. national trust bank charter. The people we hire now will build the clearing and treasury infrastructure it unlocks.
The role
We’re looking for a Frontend Engineer to join our web team in London. We’re building new features and teams around Treasury Services and Clearing & Custody, and this role will build the UIs for those products alongside our existing Ops Portal the internal tool that lets the business scale (fee setup and more). This is a backfill on an existing team, so you’ll be able to move quickly and have real impact from day one.
Day-to-day responsibilities
Design, build, and ship high-quality frontend features end-to-end
Collaborate with product and design to turn requirements into polished user experiences
Write clean, well-tested, maintainable code and participate in code review
Help improve frontend architecture, tooling, and performance
Debug and resolve production issues affecting the frontend
Success in the first 3 to 12 months
Be shipping production code within your first couple of months, delivering alongside and with guidance from the team
By month 3, be fully up to speed with our codebase and domain, and actively contributing to our growing frontend/UI community
Take ownership of features and areas of the frontend as you grow with a small frontend team, ownership comes early
Contribute at least one frontend architecture/tooling improvement
Collaborate effectively with design and product cross-functionally
Ideal Candidate
Must Haves
Professional experience shipping production frontend code in TypeScript
We don’t require a specific framework strong, idiomatic TypeScript is what matters most. If you write clean TypeScript, we’re confident you can work with whatever framework we use
Able to work hybrid, 3 days/week in the London office
Preferred
Experience with React, our main framework (preferred rather than essential)
Nice to haves
Experience with design systems or component libraries
Experience with testing frameworks (we use Cypress and Vitest; Jest or Playwright experience is just as relevant)
Familiarity with CI/CD and modern frontend build tooling
Some full-stack or backend exposure
Previous experience in a fintech company
Our tech stack
TypeScript (we don’t write plain JavaScript)
React
Testing: Cypress and Vitest
CI/CD
How we work (attitudes & behaviours)
High agency: autonomous and comfortable owning a problem end-to-end, spotting what needs doing next rather than waiting to be handed tickets
Collaborative with design and product clear communicator, gives and takes feedback well
Comfortable with the pace and ambiguity of an early-stage clearing/treasury infrastructure business
Product-oriented cares about solving the real customer problem, not just reaching for the fanciest tool
Takes responsibility for outcomes: when blocked, you find a way to move things forward rather than pointing elsewhere
Open to using AI tools as part of your everyday engineering workflow
Benefits
Flexible vacation policy
Private Healthcare
Employee stock ownership (ESOP)
Flexible working and autonomy
Pay it forward days - we offer 2 annual pay it forward days where you can take time to volunteer for a charitable cause that is important to you.
Wellness days - we believe you can only work your best when you feel your best, and we know working at Lorum is intense, so we offer 3 wellness days every quarter where you can take time to re-energize
Equal opportunity: Lorum is an equal opportunity employer. We welcome applications from all qualified candidates regardless of race, colour, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other protected characteristic.