Dfns is looking to build the backbone of blockchain wallet infrastructure for the next financial era by hiring a Senior Software Engineer to design, develop, and scale the core backend services of their platform.
Requirements
- Strong in TypeScript, plus ideally at least one low-level language (Rust, Go, C++).
- Proven track record building scalable APIs, infrastructure, and developer tools.
- Expertise with databases (PostgreSQL, DynamoDB, NoSQL) and AWS services.
- Skilled in microservices, CI/CD pipelines, observability, and SSLDC practices.
- Familiar with applied cryptography, PKI, and backend security fundamentals.
Responsibilities
- Design, build, and maintain secure, scalable backend services and APIs (REST).
- Architect databases and microservices for performance, reliability, and growth.
- Own projects end to end: from requests, implementation to production and iteration.
- Troubleshoot complex issues, resolve performance bottlenecks, ensure resilience.
- Contribute to CI/CD pipelines, observability, and overall engineering excellence.
- Collaborate with product, security, and leadership on roadmap and technical direction.
- Document systems, share knowledge, and support client-facing discussions.
Other
- 8+ years of backend software engineering experience in fintech or blockchain.
- Strong problem-solving, clear communication, and ability to deliver under pressure.
- Salary: $160,000-240,000 per year
- Location: US or EU (remote-first, office optional).
- Contract Type: Full-Time
