Fullstack Engineer, Investigator Tools

Overview

Full Stack Engineer role on Sardine's Investigator Tools team, bridging complex backend systems and user-friendly interfaces to help stop fraud. Work is roughly 60% backend and 40% frontend, with willingness to help wherever needed.

What you'll do

• Own features end-to-end, from defining the problem space and user needs through technical modeling, UX execution, and iterative improvements based on vague requirements.
• Translate complex technical systems into intuitive, user-friendly interfaces.
• Develop and optimize advanced graph systems to visualize fraud rings.
• Build performant search tools that help analysts rapidly identify suspicious transactions.
• Collaborate cross-functionally with Design, Data, Product, and Account Management teams to align engineering output with business and user needs.
• Proactively diagnose, triage, and resolve bugs while writing highly efficient and performant code.

What you'll need

• Extensive experience writing efficient, production-ready code in TypeScript, Node.js, React, Go and other server programming languages.
• Proven experience working with data-intensive applications, complex workflows, and big data at scale.
• Deep background in technical data modeling and building robust production data pipelines.
• The ability to thrive, execute, and deliver consistently in a fast-paced, high-growth startup environment.
• A proven track record of taking extreme ownership of ambiguous problems and independently turning them into polished, scalable features.

Details

• Remote, United Kingdom. Pay is based on where you are located, and you must keep a home base in the country you are hired in.
• Remote-first team spread across time zones, with no office to report to.