Andrii R.

DevOps Engineer helping growing SaaS and ecommerce teams run production infrastructure that's reliable, automated, and secure by default. 5+ years in production DevOps. CKA, AWS Solutions Architect Associate, Terraform Associate. Current focus: Kubernetes, AWS, and CI/CD built to ship fast without breaking things. What I do — CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions, Argo CD) — build, test, deploy, rollback — Kubernetes on cloud and on-prem — cluster setup, workload hardening, autoscaling, upgrades — AWS infrastructure — VPC, EKS, IAM, cost control, multi-env setups — Infrastructure as Code — Terraform modules, state management, drift control — Monitoring and logging — Prometheus, Grafana, ELK, SLO-based alerts — Backup and disaster recovery — tested restore procedures, documented runbooks — Linux, Bash, Python automation Security as a layer, not an afterthought Every setup I ship includes least-privilege IAM, secrets management (Vault / AWS Secrets Manager, no hardcoded credentials), and container image scanning in the pipeline. Security is built into how I work, not sold separately. What I've shipped — Reliability work for an ecommerce platform under peak traffic: SLO-based alerting, incident runbooks, DR tested end-to-end — CI/CD hardening and monitoring rollout for a long-term SaaS client on Upwork (5★ delivery) — Kubernetes on-prem in telecom production — multi-cluster, high-availability workloads How I work Clear scope, written runbooks, no vendor lock-in to me. The goal is infrastructure your team can run after I hand it over — monitored, documented, repeatable. Based in Poznań, Poland (CET). Available for long-term retainers and scoped projects.