(1113671) Senior DevOps Engineer - AWS & Kubernetes

Diversified Services Network, Inc.•Chicago, IL

3h•$125,000 - $130,000•Hybrid

About The Position

Diversified Services Network, Inc. (DSN) is hiring a full-time Senior DevOps Engineer to join its team in Chicago, Illinois, or Irving, Texas, under a hybrid work model. The role leads the organization's containerization strategy, builds enterprise-grade automation workflows using GitHub Actions, and manages the Infrastructure as Code lifecycle to support high availability, performance, and cost efficiency. The engineer works with a team of six on CI/CD automation, Kubernetes cluster management, cloud infrastructure, and DevSecOps practices. The role encompasses GitHub Actions workflow architecture and reusable pipeline templates; secure secrets management and OIDC authentication with AWS IAM; management and maintenance of production AWS EKS and Kubernetes clusters; Terraform or AWS CDK infrastructure provisioning; administration of core AWS services; automation scripting; GitOps deployment frameworks; Docker image builds and registry vulnerability management; and cloud networking and workload access controls.

Requirements

At least 5 years of professional experience in dedicated DevOps, Site Reliability Engineering (SRE), or cloud infrastructure roles.
At least 3 years of practical experience writing, testing, and modularizing complex GitHub Actions workflows.
At least 5 years of hands-on, architecture-focused experience across major AWS services.
At least 3 years of deep technical experience running production-grade workloads on Amazon EKS, including advanced troubleshooting.
Expert proficiency with Terraform.
Proficiency in at least one scripting language: Python or Bash.
No degree required.

Nice To Haves

Certified Kubernetes Administrator (CKA), CKAD, or AWS Certified DevOps Engineer Professional certification.
Experience managing scaling policies for enterprise-scale GitHub Actions self-hosted runners on Kubernetes, such as with Actions Runner Controller (ARC).

Responsibilities

Design, build, and optimize GitHub Actions workflows for continuous integration and automated testing.
Build and maintain version-controlled custom GitHub Actions and reusable workflow templates for standardized pipelines.
Manage secure environment variables, contexts, and deployment keys using GitHub Secrets, Environments, AWS Secrets Manager, or HashiCorp Vault.
Implement OIDC authentication between GitHub Actions runners and AWS IAM to avoid long-lived credentials.
Design, deploy, and maintain multi-cluster production AWS EKS and Kubernetes environments.
Perform zero-downtime cluster upgrades, patch releases, and routine node recycling.
Configure and tune cluster autoscaling with Karpenter or Cluster Autoscaler, as well as HPA and VPA.
Build, maintain, and version-control internal Helm charts.
Provision and manage cloud resources using Terraform or AWS CDK to maintain consistent environments.
Administer AWS services including EC2, VPC, IAM, S3, Route53, and RDS.
Write automation scripts in Python and Bash to reduce manual intervention.
Implement and maintain GitOps deployment frameworks using ArgoCD or Flux to synchronize EKS state with source repositories.
Oversee Docker container builds, multi-stage layering, and AWS ECR registry vulnerability management, with builds triggered via GitHub Actions runner hooks.
Manage VPC CNI container networking and ingress routing controllers such as ALB, NGINX, or Traefik.
Enforce security guardrails using AWS IAM Roles for Service Accounts (IRSA) for fine-grained pod permissions.