Senior DevOps Engineer

About BITFIT LABS PTE LTD BITFIT LABS PTE LTD is a Singapore-based blockchain software development company delivering Web3 products and blockchain infrastructure solutions for international clients. We operate a globally distributed remote team building wallets, exchanges, smart contract systems, dApps, and digital asset platforms. We are seeking senior DevOps Engineers with blockchain infrastructure experience to help maintain scalable, secure, and highly available production environments. 1. Responsibilities Design, deploy, and maintain cloud and blockchain infrastructure Manage blockchain nodes, validators, RPC services, and monitoring systems Build and improve CI/CD pipelines for multi-environment deployments Maintain containerized services using Docker and Kubernetes Implement infrastructure automation and security best practices Monitor system reliability, uptime, scalability, and incident response Optimize infrastructure costs and deployment workflows Collaborate closely with engineering teams across backend, blockchain, and QA 2. Requirements 5+ years of DevOps/SRE experience in blockchain companies Strong experience with Linux server administration Hands-on experience with AWS, GCP, or other cloud platforms Experience managing blockchain nodes and Web3 infrastructure Strong knowledge of Docker, Kubernetes, Terraform, and CI/CD pipelines Experience with monitoring/logging tools such as Prometheus, Grafana, ELK, or Datadog Familiarity with networking, security hardening, load balancing, and reverse proxies Strong scripting skills (Bash, Python, etc.) 3. Preferred Qualifications Experience operating high-availability exchange or wallet infrastructure Experience with validator operations or staking infrastructure Familiarity with Kafka, Redis, PostgreSQL, and distributed systems Understanding of blockchain security and infrastructure attack vectors 4. Work Conditions Fully remote Full-time / Part-time / Contract / Freelance available International engineering team Compensation via PayPal, bank transfer, or cryptocurrency