Lead the design and development of scalable, secure backend services and APIs, and define and evolve architecture for databases, microservices, and integrations.
Own mission-critical projects end-to-end, from requirements gathering and design through production deployment and iteration.
Troubleshoot and resolve complex performance and reliability challenges at scale.
Drive improvements to CI/CD, observability, and engineering processes across teams, promoting best practices and quality standards.
Collaborate with leadership to shape roadmap priorities and long-term technical vision.
Mentor senior engineers, share knowledge, and represent the technical direction in client discussions.

10+ years of backend software engineering experience, with significant leadership experience in fintech or blockchain.
Mastery of TypeScript plus one or more systems languages (e.g., Rust, Go, C++).
Proven track record building scalable APIs, infrastructure, and developer platforms.
Deep expertise with databases (PostgreSQL, DynamoDB, NoSQL) and cloud services (AWS).
Strong knowledge of microservices, CI/CD pipelines, observability, and Secure Software Development Lifecycle (SSDLC).
Familiarity with applied cryptography, PKI (Public Key Infrastructure), and secure backend architectures.
Exceptional problem-solving, communication, and demonstrated ability to influence technical direction across the organization.

Highly competitive salary range of €120,000–€200,000 per year plus generous equity (150–300 stock options vested over 4 years).
European Union (Remote-First), with optional office space.
Comprehensive Healthcare and pension plan, plus coverage for travel expenses.
Provided with a MacBook Pro + essential equipment.
Opportunity to define the technical backbone of next-generation blockchain wallet infrastructure.

Principal Software Engineer

Key skills