DevOps Engineer 3

Cullerton Group has a new opportunity for a DevOps Engineer 3. The work will be performed on a hybrid schedule, 3 days per week onsite, in either Chicago, IL or Irving, TX. Candidates must already be local to one of these locations. This is a 12-month position that can lead to permanent employment with our client. Compensation is up to $80/hr + full benefits (vision, dental, health insurance, 401k, and holiday pay). Job SummaryThe DevOps Engineer 3 will design, implement, and operate secure, scalable cloud infrastructure with a strong focus on AWS and Amazon EKS. This role will lead containerization efforts, develop enterprise-grade GitHub Actions CI/CD automation, and manage Infrastructure as Code to support highly available and efficient production environments. The engineer will also work extensively with Kubernetes, Terraform, GitOps, cloud networking, security, and automation. Key ResponsibilitiesDesign, build, and optimize complex GitHub Actions workflows for CI/CD, automated testing, and deployment. Design, deploy, maintain, troubleshoot, and upgrade production Amazon EKS/Kubernetes environments. Provision and manage AWS infrastructure using Terraform or AWS CDK, including EC2, VPC, IAM, S3, Route53, and RDS. Build automation using Python and/or Bash and manage secure credentials through GitHub Secrets, AWS Secrets Manager, or HashiCorp Vault. Implement GitOps deployment practices using tools such as ArgoCD or Flux, while supporting Docker/ECR, Helm, Kubernetes autoscaling, networking, and DevSecOps practices. Required Qualifications5+ years of professional DevOps, Site Reliability Engineering (SRE), or cloud infrastructure experience. 3+ years of strong hands-on GitHub Actions experience, including writing, testing, and modularizing complex workflows. 5+ years of hands-on AWS experience, particularly architecture-focused work across major AWS services. 3+ years of deep Amazon EKS/Kubernetes experience, including running and troubleshooting production-grade workloads. Expert proficiency with Terraform and at least one scripting language: Python or Bash. Degree is not required. Preferred QualificationsCertified Kubernetes Administrator (CKA), CKAD, or AWS Certified DevOps Engineer – Professional certification. Experience with ArgoCD/Flux, Helm, Docker/ECR, Karpenter/Cluster Autoscaler, OIDC, IAM/IRSA, and Kubernetes networking. Experience administering enterprise-scale GitHub Actions self-hosted runners on Kubernetes, including Actions Runner Controller (ARC). Why This Role?This position offers the opportunity to work on sophisticated cloud infrastructure and production Kubernetes environments while helping shape enterprise DevOps and containerization strategies. You’ll gain hands-on exposure to AWS, EKS, GitHub Actions, Terraform, GitOps, automation, and cloud security while collaborating with an experienced engineering team. Cullerton Group provides a professional environment with growth potential and the opportunity to contribute to meaningful technology initiatives.