Senior DevOps Engineer

Senior DevOps Engineer Work Model: Remote with visits to Warsaw office once per month Salary: 160-190 pln/h on B2B   Join our expanding engineering team supporting a strategic initiative in the financial domain. As a global tech partner with over 30 years of experience, we help leading organizations modernize their systems and deliver top-tier digital solutions.   We are looking for a Senior DevOps Engineer to help build and evolve a modern platform based on GitOps, AWS, and Kubernetes (EKS). This role offers high ownership, real architectural impact, and close collaboration with engineering and platform teams. Responsibilities • Design and maintain GitOps-based environments using ArgoCD • Build, extend, and maintain CI/CD pipelines in Jenkins (Pipeline-as-Code) • Automate deployments across multiple environments • Operate and scale AWS + EKS production infrastructure • Implement DevSecOps, monitoring, and reliability best practices • Troubleshoot incidents and perform root cause analysis (RCA) Technical Requirements GitOps & ArgoCD • Strong understanding of GitOps principles and repo-driven environment management • Hands-on experience with ArgoCD • Knowledge of sync policies, automated vs. manual sync, rollback strategies, and health checks • Experience with multi-environment setups, promotion flows, and drift detection CI/CD & Automation • Jenkins (Shared Pipeline Libraries, Job DSL) • Ability to write, debug, and maintain scripted and declarative pipelines (Groovy) • Experience with Pipeline-as-Code aligned with GitOps standards • Integration of Jenkins pipelines with ArgoCD-driven deployments Cloud & Containers • AWS: EKS, EC2, IAM, VPC, CloudWatch, S3 etc • Kubernetes (EKS): deployments, networking, autoscaling, cluster upgrades • Docker: multi-stage builds and security best practices Helm & Infrastructure as Code • Strong experience with Helm (chart development, templating, versioning) • Helmfile for multi-chart, multi-environment deployments • Terraform: reusable modules, state management, remote backends, workspaces Monitoring, Security & Reliability • Monitoring and observability using CloudWatch, Prometheus, Grafana, ELK (or similar) • Experience implementing DevSecOps practices • Secrets management using External Secrets Operator (ESO) with AWS Secrets Manager / SSM Scripting • Proficiency in Bash or Python (including Lambda automation use cases) Additional Skills • Ability to document processes • Strong ownership mindset and effective problem-solving skills • Experience working with highly available systems