(1113671) Senior DevOps Engineer - AWS & Kubernetes

Diversified Services Network•Chicago, IL

2d•Hybrid

About The Position

Diversified Services Network, Inc. (DSN) is seeking a full-time Senior DevOps Engineer – AWS & Kubernetes to join our team in Chicago, IL or Irving, TX. This role offers a hybrid work model and involves leading the organization's containerization strategy, building enterprise-grade automation workflows using GitHub Actions, and managing the Infrastructure as Code (IaC) lifecycle. The engineer will work closely with a team of six, focusing on CI/CD automation, Kubernetes cluster management, cloud infrastructure, and DevSecOps practices to ensure high availability, optimal performance, and cost efficiency.

Requirements

5+ years of professional experience in dedicated DevOps, Site Reliability Engineering (SRE), or cloud infrastructure roles.
3+ years of heavy practical experience writing, testing, and modularizing complex GitHub Actions workflows.
5+ years of hands-on, architecture-focused experience across major AWS services.
3+ years of deep technical experience running production-grade workloads on Amazon EKS, including advanced troubleshooting.
Expert proficiency with Terraform.
Expert proficiency with at least one scripting language (Python or Bash).

Nice To Haves

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

Responsibilities

Design, build, and optimize matrixed, self-hosted, or cloud-hosted GitHub Actions workflows for continuous integration and automated testing.
Build and maintain version-controlled custom GitHub Actions and reusable workflow templates to standardize pipelines across multiple engineering teams.
Manage secure environment variables, contexts, and deployment keys using GitHub Secrets, Environments, and integrations with AWS Secrets Manager or HashiCorp Vault.
Implement OpenID Connect (OIDC) to authenticate GitHub Actions runners natively with AWS IAM, eliminating long-lived credentials.
Design, deploy, and maintain multi-cluster production AWS EKS and Kubernetes environments.
Execute seamless, zero-downtime cluster upgrades, patch releases, and routine maintenance node recycling.
Configure and tune cluster autoscaling using tools like Karpenter or Cluster Autoscaler, alongside horizontal/vertical pod autoscaling (HPA/VPA).
Build, maintain, and version control internal Helm charts for streamlined application delivery.
Provision and manage 100% of cloud resources using Terraform or AWS CDK to maintain strict environment consistency.
Administer core AWS services including EC2, VPC, IAM, S3, Route53, and RDS platforms.
Write clean, maintainable automation scripts using Python and Bash to eliminate manual interventions.
Implement and maintain GitOps-driven deployment frameworks utilizing tools like ArgoCD or Flux to sync EKS state with source repositories.
Oversee Docker container builds, multi-stage layering, and registry vulnerability management via AWS ECR, triggered natively via GitHub Actions runner hooks.
Manage sophisticated container networking interfaces (VPC CNI) and advanced ingress routing controllers (ALB, NGINX, or Traefik).
Enforce security guardrails utilizing AWS IAM Roles for Service Accounts (IRSA) to grant fine-grained pod permissions.