Senior DevOps Engineer

Company Overview & Vision Founded in Singapore in April 2026, CITA Lab is a dynamic software development startup dedicated to building high-quality, custom blockchain-related products tailored specifically to our customers' requirements. Our diverse product lineup includes centralized/decentralized cryptocurrency exchange solutions, secure crypto wallets, smart contracts, dApps, and more. We turn complex blockchain capabilities into seamless, secure, and intuitive user experiences for clients worldwide. 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