Senior Backend Developer – Blockchain Infrastructure
Institutional blockchain infrastructure provider connecting digital-asset custody solutions with compliant, non-custodial staking and on-chain yield.
Funding history
Investors
About Colossus Digital
Colossus Digital provides institutional-grade infrastructure for banks, asset managers, exchanges, funds, foundations, and other digital-asset holders. Its Institutional Hub connects custody providers with validators and yield providers, enabling multi-chain staking, delegation, governance, portfolio monitoring, and transaction controls while keeping signing within the customer’s custody environment.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
Lead and scale backend systems, own architecture, drive performance, and ensure security across microservices and AKS infrastructure. Work with Node.js, NestJS, cloud platforms, Docker, Kubernetes, MongoDB, APIs, OAuth2, and JWT while providing architectural leadership and mentoring developers.
Requirements
- 3+ years of experience
- Strong experience with Node.js
- Experience with NestJS
- Expertise in microservices
- Expertise in cloud platforms such as GCP or AWS
- Expertise in Docker and Kubernetes
- Knowledge of MongoDB
- Knowledge of API design
- Knowledge of backend security including OAuth2 and JWT
- Architecture leadership
- Mentoring
Responsibilities
- Lead and scale backend systems
- Own backend architecture
- Drive system performance
- Ensure security across microservices and AKS infrastructure
- Provide architectural leadership
- Mentor developers
Benefits
- Work with top-tier blockchain experts
- Shape the future of Web3 infrastructure
- Grow in a fast-paced, innovative environment
- International team, cutting-edge tech, real impact
Hiring Process
1. Application. 2. Introductory interview. 3. Skill test. 4. Deep interview and offer.