Backend Engineer (Principal / Staff)

We have partnered with a fast-growing Bitcoin & Digital Asset Financial Platform that is building core infrastructure for brokerage, exchange, and trading products across Europe. We are seeking a Principal / Staff Backend Engineer to take end-to-end ownership of the backend architecture, leading the re-architecture of systems to support scale, regulatory compliance, and long-term growth. Key Responsibilities Architectural Leadership: Own the end-to-end design and architecture of backend systems for a crypto brokerage and exchange platform. System Modernization: Lead the rewrite and modernization of core backend services using TypeScript. Scalable Design: Design secure, scalable systems covering complex flows such as trading, wallets, payments, and financial ledgers. Standards & Best Practices: Define technical standards and architectural direction to ensure code quality and system reliability. Collaboration: Partner closely with Product and Engineering teams to translate business requirements into robust, production-grade systems. Requirements Experience: 8+ years of backend engineering experience with proven success at a Principal or Tech Lead level. Tech Stack: Deep production experience with TypeScript (Node.js and modern backend frameworks). Domain Expertise: Proven experience building brokerage, exchange, trading, or lending systems. System Design: Deep understanding of financial system design, data consistency, and high-availability architecture. Ownership: Comfortable making high-level architectural decisions and owning systems from concept to deployment. Offer & Benefits Compensation: Competitive salary + Equity / Upside potential. Flexibility: Remote-first setup (Europe-focused hours). Impact: High-ownership role within a lean, senior team.