OneX Systems

OneX Systems delivers production-grade DevOps and AWS infrastructure for SaaS teams. Founded by Dmytro Hamera, a DevOps engineer with 3 years 9 months of hands-on experience maintaining infrastructure for PrivatBank — one of Ukraine's largest banks with 20M+ customers. What we build: - AWS infrastructure and cost optimization (typical result: 30–40% reduction) - Kubernetes cluster setup with ArgoCD GitOps and full monitoring - CI/CD pipelines that cut deploy time from hours to minutes - Observability stacks: Prometheus, Grafana, Loki, Alertmanager How we work: Every engagement starts with an infrastructure audit call. We scope the work, agree on a fixed price, and deliver — no surprises mid-project. You get production-ready infrastructure your team can actually operate, with documentation and a 30-day support window included. Stack: AWS (EC2, EKS, RDS, VPC, IAM, ECR) · Kubernetes · Terraform · ArgoCD · GitLab CI · GitHub Actions · Docker · Prometheus · Grafana · Loki · Helm