Job Information
Cognizant Senior DevOps Engineer in Warsaw, MA - Wola Center, Poland
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
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Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.