Senior Backend Developer

€70.000 - €95.000

Job Summary

Salary Range:: €70.000 - €95.000

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Job Description

Senior Backend Developer – Blockchain InfrastructureAbout Colossus DigitalWe’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 bringStrong experience with Node.js (NestJS preferred)Expertise in microservices, cloud platforms (GCP/AWS), and Docker/KubernetesSolid knowledge of MongoDB, API design, and backend security (OAuth2, JWT)Leadership in architecture and mentoringTesting Frameworks (such as Jest)Secure, scalable microservices architectureEngage with the future of finance

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Senior Backend Developer

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