Senior Backend Developer
Colossus Digital provides secure, non-custodial institutional staking and digital-asset yield-generation solutions. Its customers include financial institutions, asset managers, foundations, and exchanges.
Funding history
Investors
About Colossus Digital
Colossus Digital operates the Institutional Hub, a B2B platform for financial institutions to stake and manage digital assets across more than 30 blockchains. The platform connects custody providers with staking and yield providers, allowing clients to sign and stake from custody, select validators, monitor staking and DeFi activity, and access reporting while maintaining compliance and operational controls.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You lead and scale backend systems, own architecture, drive performance, and ensure security across microservices and AKS infrastructure. You work with Node.js and NestJS, cloud platforms, Docker, Kubernetes, MongoDB, APIs, OAuth2, and JWT. You also provide architectural leadership and mentor other 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