Senior DevOps Engineer

Position Overview As a Senior/ DevOps Engineer, you will scale, and secure our hybrid cloud and on-premises infrastructure across AWS and private bare-metal/virtualized environments. In this role, you will champion an AI-first paradigm—integrating AI tooling into root-cause analysis, proactive observability, automated incident response, and continuous deployment workflows. You will partner closely with engineering teams to streamline delivery pipelines, drive zero-downtime reliability, and ensure our mission-critical custody platforms operate at peak performance and bank-grade security. Duties & Responsibilities Architect, provision, and maintain multi-region AWS cloud environments alongside on-premises virtualized infrastructure using declarative Infrastructure-as-Code (Terragrunt). Manage, harden, and scale production-grade Kubernetes clusters, implementing advanced ingress controllers, service mesh, Helm/Kustomize packages, and GitOps pipelines (ArgoCD, Crossplane). Deploy, administrate, and maintain dedicated blockchain nodes (RPC, validator, archive, and sentry nodes across multiple Layer 1 and Layer 2 protocols), ensuring data synchronization, high availability, and network health. Enforce cloud and container security controls, including fine-grained Kubernetes network policies, IAM least-privilege models, secrets management, Kubernetes, linux and AWS security control and automated vulnerability scanning across delivery pipelines. Integrate AI and AIOps tooling into observability suites to deliver intelligent anomaly detection, automated log parsing, and rapid root-cause analysis. Performance tune microservices and cloud workloads to handle spikes in high-volume, low-latency financial transactions with high availability. 6–10 years of experience in Linux/Unix systems engineering, cloud architecture, and modern DevOps/SRE practices. Kubernetes Mastery: Production-grade expertise deploying and managing Kubernetes clusters (EKS / bare-metal), Helm, Kustomize, service mesh, and GitOps tooling (ArgoCD). Infrastructure as Code (IaC): Deep hands-on experience using Terraform, Terragrunt, following modular, DRY configuration patterns. Programming & Automation: Able to understand at least one modern programming language with harness engineering skills. Cloud & Hybrid Compute: Extensive production experience in AWS, paired with practical exposure to on-prem virtualization platforms (e.g., Proxmox, VMware ESXi, or KVM). Deep Networking Knowledge: Strong grasp of OSI layer fundamentals (TCP/UDP, BGP, DNS, TLS/mTLS, HTTP/gRPC) and comfort debugging live traffic issues on the wire (tcpdump, Wireshark, eBPF). Databases & State: Operational familiarity with relational databases and middleware (PostgreSQL, MariaDB/MySQL, Mongodb, Redis, Kafka), including replication, failover strategies, and backup pipelines. Eligible to work in Vietnam. Bonus Experience Hands-on experience in cybersecurity practices (e.g., threat modeling, penetration testing remediation, SOC 2/ISO 27001 compliance standards, or managing HSM/KMS cryptographic infrastructure). Direct experience running, securing, and maintaining blockchain nodes (e.g., Ethereum, Bitcoin, EVM/Cosmos-based chains, or Solana). As one of the leading Web3 innovators, Hex Trust offers a front-row seat in the ever-changing blockchain & crypto industry. We genuinely believe that people are our greatest asset, and invest heavily so they’re best prepared to support our mission to unlock ownership in decentralized markets! You will be joining a company that is always committed to creating a supportive & inclusive environment that promotes personal and professional growth that furthers your success and drives innovation, collaboration, and passion in the blockchain space. At Hex Trust, we are proud of our H.E.X. culture: Heart Empowerment Xcellence Join us at Hex Trust and not only can you look forward to working with blockchain professionals to build the decentralized future, but also: Generous Amounts of Paid Time Off (incl. leave for Birthdays, Work Anniversary, and Mental Health etc.) Access to Corporate Discounts and exclusive Employer Perks Medical & Retirement Plans Professional Learning and Development Opportunities Elevate your work using cutting-edge technology Fun & friendly office spaces Regular company & social events