Senior backend developer
Colossus · Roma, Lazio ·
Senior Backend Developer – Blockchain Infrastructure About Colossus Digital We're a blockchain infrastructure company powering institutional staking. Our Institutional Hub connects custody providers like Ledger Enterprise and Fireblocks to secure, compliant staking across multiple blockchains.
We're looking for a Middle/Senior Backend Developer to lead and scale our backend systems. You'll own architecture, drive performance, and ensure security across our microservices and AKS infrastructure. What you'll bring Strong experience with Node.js (Nest JS preferred) Expertise in microservices, cloud platforms (GCP/AWS), and Docker/Kubernetes Solid knowledge of Mongo DB, API design, and backend security (OAuth2, JWT) Leadership in architecture and mentoring Testing Frameworks (such as Jest) Secure, scalable microservices architecture Engage with the future of finance