Principal Software Engineer - EU

We are seeking a Principal Software Engineer to lead the design, development, and scaling of our core backend systems for blockchain wallet infrastructure. This is a high-impact, leadership role focused on making key architectural decisions and ensuring our platform is fast, resilient, and secure under the high-stakes demands of financial workflows.

Requirements

• 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.

Benefits

• Highly competitive salary range of €120,000–€200,000 per year plus generous equity (150–300 stock options vested over 4 years).
• Comprehensive Healthcare and pension plan, plus coverage for travel expenses.
• Provided with a MacBook Pro + essential equipment.