Sigma Prime - Devops Engineer

• Strong experience with Kubernetes and Terraform/OpenTofu. • Experience administering self-hosted Kubernetes clusters such as RKE2, K3s, or bare-metal Kubernetes. We value hands-on operational knowledge beyond managed platforms like EKS, GKE, or AKS. • Competence with Kubernetes architecture: pods, deployments, services, ingress, stateful sets, storage, control plane components, node lifecycle, upgrades, rollbacks, and failure recovery. • Familiarity with Kubernetes networking: service discovery, ingress, overlay networks, CNIs, load balancing, DNS, and cross-cluster connectivity. • Experience operating Kubernetes across multiple infrastructure providers, including cross-provider networking, routing, VPNs/tunnels, firewalls, DNS, and latency-aware design. • Ability to tune infrastructure for cost-efficient performance, especially for high-throughput, network-heavy blockchain workloads. • Competence with CI/CD pipelines for deploying containerized applications to Kubernetes. • Strong interest in building hands-off, fully automated infrastructure and software delivery systems rather than relying on manual operational steps. • Automation And Operations • High competence with Linux, shell scripting, systemd, journald, and server administration. • Strong understanding of server security: firewalls, public key authentication, patching, least privilege access, and operational hardening. • Strong networking fundamentals, including subnetting, routing, DNS, and domain management. • Experience with Ansible playbooks, inventories, workspaces, roles, Jinja2 templates, and YAML. • A preference for automating repeatable work, reducing manual intervention, and improving the reliability of systems over time. • Blockchain And Ethereum • Competence with blockchain data structures such as blocks, forks, and chain state. • High-level understanding of blockchain signature schemes such as ECDSA. • Familiarity with blockchain P2P networks, peer discovery, gossip, and network behavior under different conditions. • Genuine enthusiasm for Ethereum and a desire to learn deeply. • Candidates with extensive DevOps experience but limited blockchain experience will be considered. Candidates who cannot demonstrate an interest in Ethereum need not apply; enthusiasm is critical. • We provide high-level strategic guidance and constructive feedback, but we do not micro-manage. Candidates must be comfortable owning their day-to-day work, identifying problems, proposing improvements, and driving tasks to completion without waiting for detailed instructions. • We are especially interested in people who notice fragile or repetitive processes and turn them into reliable automated systems. • Candidates should be willing to rotate being on-call for infrastructure issues and outages. • Candidates must be proficient in technical conversations in English, both written and verbal. Perfect English is not required. • No jerks or bullies.