Devops / Distributed Systems Engineer (Azure + Elixir + Linux)

DevOps / Distributed Systems Engineer (Azure) We seek a talented and experienced DevOps / Distributed Systems Engineer to operate and harden our Elixir services and Hyperledger Besu node network on Microsoft Azure to join our international team. This role presents an excellent opportunity for those looking to work in a dynamic environment and be part of a high-performing international team, offering ample opportunities for growth and development in technical and interpersonal skills. We seek an energetic, driven, and articulate team player who is truly passionate about their work. Your Role and Responsibilities Run Besu on Azure: manage validators / peers, permissioning, bootnodes, IBFT / QBFT configs, genesis updates, hard-fork rollouts, and RPC / WS endpoints behind Azure gateways. Storage & performance: size and tune Besu (JVM / RocksDB) with Premium SSD v2 / Ultra Disk, optimize IOPS / throughput, and implement snapshot / restore pipelines via Azure Blob Storage. Networking: build secure, private networking with VNets, subnets, Azure CNI (Cilium), Network Security Groups, Private Endpoints / Private Link, NAT Gateway, and VNet peering / ExpressRoute as needed. Traffic & ingress: expose RPC / WS endpoints through Azure Application Gateway or Nginx Ingress with Web Application Firewall (WAF), mTLS, rate limits, and IP allowlists. Secrets & keys: manage validator keys and app secrets with Azure Key Vault / Managed HSM, Managed Identities, and least-privilege RBAC via Microsoft Entra ID. CI / CD & GitOps: ship immutable releases using GitHub Actions or Azure DevOps Pipelines, ACR (image signing / scan), Helm, and Argo CD (or Flux) for environment promotion. Observability & SRE: wire up Azure Monitor + Log Analytics, Managed Prometheus / Grafana (or self-managed Prometheus / Grafana), OpenTelemetry traces, Alert rules, runbooks, SLOs / error budgets. Tech You’ll Use Blockchain: Hyperledger Besu (IBFT / QBFT, permissioning); Geth / Nethermind familiarity is a plus Elixir: Elixir / OTP, Phoenix, Ecto, Oban, OpenTelemetry Azure: AKS, ACR, Azure Monitor & Log Analytics, Managed Prometheus / Grafana, Key Vault / Managed HSM, Application Gateway / WAF, NAT Gateway, NSG, Private Link, Azure Firewall, Blob Storage, Managed Disks (Premium v2 / Ultra), Azure Backup / Site Recovery, Defender for Cloud, Azure Policy, Entra ID IaC & CI / CD: Ansible, Terraform, GitHub Actions / Azure DevOps Logging / Tracing: Prometheus, Grafana, Loki / ELK (optional), OpenTelemetry Essential Qualifications 4+ years in DevOps / SRE / Platform roles running distributed systems in production. Hands-on experience operating EVM nodes (preferably Besu) and tuning storage / IO, txpool, and pruning / archive modes. Strong Azure background: AKS, VNet / NSG / Private Link, Key Vault, ACR, Azure Monitor / Log Analytics, and Application Gateway / WAF. Solid Linux and networking fundamentals (TLS, DNS, routing, firewalls, load balancing). Proven observability practice: metrics, logs, traces, actionable alerting, SLOs / runbooks. Excellent written and spoken English (daily collaboration across teams). What We Offer Contract-based hiring; Full-time opportunity (40 hours per week); 100% remote work / home office; Performance-based bonuses tied to achievements and deliverables; Open and flexible time-off policy; Supportive and collaborative work environment; Equipment program; Paid days off per year + holidays (variable) + recess days; Sponsorship program for relevant courses and training. All DevGrid positions are open to individuals from all backgrounds (including all races, colors, nationalities, religions, genders, sexual orientations, disabilities, ages, or other applicable characteristics), promoting equal opportunities and affirmative action. #J-18808-Ljbffr