Staff Software Engineer (Rust)
Finary · Paris, Île-De-France, FR
About Finary We're building a one-stop shop for investing that gives power back to individual investors. Finary lets users track their assets, manage budgets...
Job description
About Finary We're building a one-stop shop for investing that gives power back to individual investors. Finary lets users track their assets, manage budgets, invest money, and learn about finance, all in one place. Launched in 2021, we've grown to 600,000+ users. In September 2025, we closed a €25M Series B led by PayPal Ventures, with backing from Y Combinator, Hedosophia, Speedinvest, and founders from Qonto, Photoroom, Bitpanda, UBS, and Wise. We care deeply about user experience, performance, and shipping products that genuinely improve people's financial lives. TL;DR: You'll design and build high-performance backend services in Rust for a fintech platform serving 600,000+ users. You'll join a team of 6 Rust engineers across multiple squads, with flexibility to work on investment products, crypto, or life insurance infrastructure. What you'll do: Build and scale backend systems that power portfolio tracking, investing, and financial data aggregation for hundreds of thousands of users Design APIs and distributed systems that handle real-time financial data with high reliability Write production-ready Rust code with a focus on performance, security, and maintainability Collabora...