Remote Senior Infrastructure Engineer (Blockchain/FinTech)

Client is seeking to hirea Senior Infrastructure Engineer to design, operate, and scale the systems that power their platform.

You'll work at the intersection of blockchain, cybersecurity, and distributed infrastructure, ensuring services are reliable, secure, and ready to meet the demands of a trillion-dollar financial industry. This role goes beyond maintaining servers.

You'll architect, automate, and secure infrastructure, improve resilience, and embed best-in-class DevOps and SRE practices into workflows.

You'll collaborate across engineering, product, and security to translate requirements into infrastructure that is scalable, cost-efficient, and secure.

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.

Requirements • 8+ years of backend software engineering experience in fintech or blockchain. • 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. • Strong problem-solving, clear communication, and ability to deliver under pressure. • Remote - Location: US or EU (remote-first, office optional).

Must be in the US, not Canada or in the European Union. France or Paris.