TreasurySpring
Senior Full Stack Engineer
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TreasurySpring is the product of an obsession with fixing the fundamental structural problems in money markets. Our fascination with the sector began painfully, during the Global Financial Crisis of 2008, where we had a front-row seat to watch the evaporation of liquidity in fixed income and the near collapse of the entire short-dated funding markets.
We have been on a mission to help deliver more sustainable solutions for the money markets ever since, and we launched TreasurySpring in 2018 to offer institutional clients a single gateway to the broadest range of the best risk-adjusted cash investment options. As a fast-growing London-based financial technology company, we deliver a unique solution to a global multi-trillion-dollar problem, delivered globally from our offices in London and New York.
Our regulated Fixed-Term Fund platform delivers new digital pipelines to connect cash-rich firms to institutional borrowers. Clients include large Private Equity funds, Asset Managers, listed Corporates, high-growth tech companies and many more.
Learn more about why we do what we do here.
The role: Senior Full Stack Engineer
We’re looking for a Senior Full Stack Engineer to help redefine how institutions manage cash. You’ll build software that replaces manual treasury processes and legacy infrastructure with intuitive products used by leading investors, corporations and financial institutions. You’ll own customer problems end to end, from understanding the workflow through to designing, building, shipping and improving the solution.
You should already be comfortable working with Python, React and TypeScript. You may have strengths in one area, but you’ll be expected to contribute across the stack and become increasingly full-stack over time.
You’ll work directly with Product, Design, customers and domain experts to understand customer needs, shape the right solution and measure its impact after release, not simply implement completed designs or pre-defined tickets.
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AI is fundamental to how we build software. We expect engineers to orchestrate coding agents, rapidly prototype ideas, automate repetitive work and continually evolve their engineering workflow as the technology advances. AI should increase your leverage, not replace your judgement. You remain accountable for everything that reaches production.
What you’ll do: Responsibilities
- Build and ship high-quality features across our React, TypeScript and Python stack, taking ownership from discovery through to production and continuous improvement.
- Help reimagine how modern institutional treasury works by replacing manual processes and legacy systems with intuitive software.
- Work directly with customers to understand their workflows, pain points and goals, using those insights to shape product and technical decisions.
- Collaborate closely with Product, Design and domain experts to turn ambiguous problems into elegant, well-engineered solutions.
- Bring your own product judgement. Prototype ideas, challenge assumptions, identify awkward user experiences and proactively propose simpler, better solutions.
- Use AI as a core part of your engineering workflow, orchestrating coding agents and modern AI tools to solve problems faster, automate repetitive work and unlock entirely new ways of building software.
- Deliver quickly through small, iterative releases, using customer feedback and production data to continuously improve what you’ve built.
- Continuously improve our products, engineering practices and internal tooling by identifying opportunities to simplify, automate and increase engineering leverage.
- Collaborate in a low-ego, high-trust team where curiosity, ownership and continuous learning are expected.
What we’re looking for: Requirements
- Strong professional experience with Python, React and TypeScript.
- A track record of designing, building and shipping substantial customer-facing products across frontend, backend and data layers.
- Strong web and server-side engineering fundamentals, including component design, state management, APIs, relational databases, authentication and permissions.
- The ability to quickly understand unfamiliar systems and confidently trace behaviour across application, service and database boundaries.
- Exceptional customer empathy. You naturally put yourself in the customer’s shoes, seek to understand their workflows, goals and pain points, and use those insights to build products that genuinely solve customer problems.
- Strong product judgement. You enjoy taking ambiguous problems, identifying the underlying customer need, exploring different approaches and making thoughtful trade-offs between speed, simplicity and long-term maintainability.
- You treat AI as a force multiplier, not a replacement for engineering judgement. You know when to trust AI, when to challenge it and when to replace its output entirely.
- Strong test-first mindset with a commitment to developer-led QA - you’ll take end-to-end ownership of your code's quality, test coverage, and reliability without relying on a separate QA team.
- Curiosity and a desire to continuously learn. Technology is changing rapidly and you’re excited to explore new tools, techniques and ways of working.
- Clear written and verbal communication skills, with a collaborative, low-ego approach to feedback, design discussions and code review.
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What we offer: Benefits
- Competitive salary, depending on experience
- Equity and quarterly bonus scheme
- Unlimited Paid Leave
- Hybrid office-working model - we're in a great location near Green Park station in London
- Enhanced Parental Leave and Pay
- Workplace Pension
- Complete Bupa HealthCare Cover
- Life Insurance
- Income Protection Insurance
- Access to Yulife (Employee Assistance Programme)
- Remote Office set-up budget
- Cycle to Work Scheme
- A fun and dynamic working environment with regular team-building activities and events
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