Lead DevSecOps Engineer – AWS, Kubernetes & GitOps

CACI International Inc.; Stafford (VA); On-site; USD 82,000 - 172,000; Full time

Job summary

CACI International Inc. seeks a DevSecOps Lead Engineer to own health, security, and state of our AWS cloud. Lead a small team, guide IaC, Kubernetes, CI/CD, and secure software delivery end-to-end.

You will design and operate Kubernetes clusters, manage AWS state, and build GitLab pipelines with ArgoCD. Strong Python tooling and AI tooling awareness help shape secure, scalable engineering practices.

Qualifications

• 7+ years in DevOps/DevSecOps, cloud infrastructure, or SRE roles.
• Deep, hands-on AWS expertise (compute, networking, IAM, storage) at production scale.
• Strong proficiency with Terraform, Kubernetes, and Helm in production.
• Proficiency in Python for automation and tooling.
• Experience building and maintaining GitLab CI/CD pipelines.
• Hands-on experience with ArgoCD or comparable GitOps tooling.
• Working knowledge of LLM/AI concepts to guide decisions involving AI tooling.
• Demonstrated ability to operate as the senior/primary technical resource for a small team.
• U.S. citizenship and eligibility to obtain/maintain a Top Secret clearance.

Responsibilities

• Design, operate, and troubleshoot Kubernetes clusters and Helm-packaged workloads in production.
• Own and manage AWS environment state end-to-end; provisioning, configuration, drift detection, cost, and security posture.
• Build and maintain GitLab CI/CD pipelines and operate ArgoCD for GitOps-based deployment.
• Write and maintain Python tooling for infrastructure and operational workflows.
• Mentor team members on IaC, Kubernetes, and CI/CD best practices.
• Embed security throughout the development and delivery lifecycle; secrets management and least-privilege IAM.

Skills

AWS expertise

DevSecOps experience

Python automation

GitLab CI/CD

ArgoCD

LLM/AI concepts

Security best practices

Leadership

Tools

Terraform

Kubernetes

Helm

Python

GitLab CI/CD

ArgoCD

Job description

CACI International Inc. seeks a DevSecOps Lead Engineer to own health, security, and state of our AWS cloud. Lead a small team, guide IaC, Kubernetes, CI/CD, and secure software delivery end-to-end.

You will design and operate Kubernetes clusters, manage AWS state, and build GitLab pipelines with ArgoCD. Strong Python tooling and AI tooling awareness help shape secure, scalable engineering practices.