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

#LI-BP1