DevOps Engineer 3

Job Description

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) .

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Job Summary

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The 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.

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Key Responsibilities

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• Design, build, and optimize complex GitHub Actions workflows for CI/CD, automated testing, and deployment.
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• Design, deploy, maintain, troubleshoot, and upgrade production Amazon EKS/Kubernetes environments.
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• Provision and manage AWS infrastructure using Terraform or AWS CDK , including EC2, VPC, IAM, S3, Route53, and RDS.
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• Build automation using Python and/or Bash and manage secure credentials through GitHub Secrets, AWS Secrets Manager, or HashiCorp Vault.
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• Implement GitOps deployment practices using tools such as ArgoCD or Flux, while supporting Docker/ECR, Helm, Kubernetes autoscaling, networking, and DevSecOps practices.
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Required Qualifications

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• 5+ years of professional DevOps, Site Reliability Engineering (SRE), or cloud infrastructure experience.
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• 3+ years of strong hands-on GitHub Actions experience , including writing, testing, and modularizing complex workflows.
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• 5+ years of hands-on AWS experience , particularly architecture-focused work across major AWS services.
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• 3+ years of deep Amazon EKS/Kubernetes experience , including running and troubleshooting production-grade workloads.
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• Expert proficiency with Terraform and at least one scripting language: Python or Bash .
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• Degree is not required.
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Preferred Qualifications

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• Certified Kubernetes Administrator ( CKA ), CKAD, or AWS Certified DevOps Engineer – Professional certification.
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• Experience with ArgoCD/Flux, Helm, Docker/ECR, Karpenter/Cluster Autoscaler, OIDC, IAM/IRSA, and Kubernetes networking .
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• Experience administering enterprise-scale GitHub Actions self-hosted runners on Kubernetes , including Actions Runner Controller (ARC).
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Why This Role?

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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.

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