112K–128K EUR / year
Fullstack Engineer, Investigator Tools
FullstackRemote — United Kingdom
Published on 2026-10-14
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About this role
Build and own backend-heavy, data-intensive applications that help fraud analysts investigate suspicious transactions. Develop graph visualization and search tools, turning complex systems into usable interfaces and delivering features end to end.
About the company
Sardine is a financial crime platform that helps companies detect fraud, money laundering, and other risk with real-time behavioral and device intelligence.
Stack
TypeScriptNode.jsReactGo
What you'll do
- Own features from problem definition and technical design through UX delivery and iteration
- Build graph systems for visualizing fraud rings
- Develop performant search tools for identifying suspicious transactions
- Collaborate with Design, Data, Product, and Account Management
- Diagnose and resolve bugs and optimize system performance
What we're looking for
- Extensive experience writing production-ready code in TypeScript, Node.js, React, and Go or other server-side languages
- Experience with data-intensive applications, complex workflows, and big data at scale
- Strong background in data modeling and production data pipelines
- Ability to independently deliver polished, scalable features from ambiguous requirements
- Ability to thrive in a fast-paced, high-growth startup
Benefits
- Equity, with early exercise available for all options, including pre-vested options
- Flexible paid time off and a year-end break
- Remote-first work within the country of hire
- MacBook Pro and a one-time home-office setup stipend
- Monthly meal and social meet-up stipends
- Annual health and wellness and learning stipends