Senior Backend Developer - Roma, Lazio, Italy
Summary
Senior backend developer at Colossus Digital, a blockchain infrastructure company powering institutional staking, to own architecture, performance, and security of backend microservices. Core stack: Node.js/NestJS, MongoDB, GCP/AWS, Docker/Kubernetes (AKS), and OAuth2/JWT security.
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 (NestJS preferred)
Expertise in microservices, cloud platforms (GCP/AWS), and Docker/Kubernetes
Solid knowledge of MongoDB, 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