Senior DevOps Engineer - Onsite, TS/SCI

Stellent IT LLC; St. Louis (MO); On-site; USD 126,000 - 154,000; Full time

Job summary

Stellent IT LLC is seeking a Senior DevOps Engineer to drive faster, more reliable software delivery through automation and operational discipline. The role bridges development and operations to remove friction, improve collaboration, and ensure releases reach users with less disruption.

The candidate will configure CI/CD, manage IaC, helm charts for OpenShift, and maintain system security and documentation in a complex environment. Onsite in Springfield, VA or St.

Qualifications

• Minimum 6+ years of directly related experience.
• Bachelor's Degree in computer science, computer engineering, systems engineering or related field, or 2 additional years of IT experience.
• Proficiency with Linux operating systems.
• Working experience with CI/CD pipelines (GitLab, Jenkins, CircleCI, or similar).
• Knowledge of OIDC/OAuth/Auth2 or similar zero-trust identity implementations.
• Experience with ArgoCD and GitOps style operations management.
• Experience with web server management (DNS, certificate management).
• Knowledge of HTTP API design standards and best practices.
• Ability to manage networking for web applications (TCP/IP, DNS, and load balancing).
• Familiarity with Kubernetes and OpenShift, with knowledge of AWS.
• Experience with Infrastructure as Code (Terraform, OpenShift Containerized Platform, CloudFormation, AWS CDK, Ansible, Chef, Puppet, etc).
• Knowledge of monitoring, logging, and security for containers.
• Experience deploying and managing databases with SQL/ORMs.
• Comfortable writing Python and Bash for tooling.
• Ability to contribute code updates to existing repositories.
• Experience in system design and architecture diagrams.

Responsibilities

• Configure CI/CD for multiple web applications.
• Take source code and dependencies to perform builds.
• Perform automated testing and security scans.
• Deploy to multiple environments (Dev, Staging, Operations).
• Responsible for Infrastructure as Code and Configuration Management.
• Author helm charts to deploy resources to OpenShift.
• Manage and document system security and updates for compliance.
• Provide input to technical documentation and architecture.
• Prepare reports and present progress to management.

Skills

CI/CD pipelines

Linux proficiency

OIDC/OAuth/zero-trust

ArgoCD/GitOps

OpenShift/Kubernetes

Infrastructure as Code

Security integration

Python/Bash scripting

Networking (DNS, TCP/IP, load balancer

AWS knowledge

Education

Bachelor's Degree in CS/CE/SE or related field

Tools

GitLab

Jenkins

CircleCI

ArgoCD

OpenShift

Kubernetes

Terraform

CloudFormation/AWS CDK

Ansible/Chef/Puppet

Job description

Stellent IT LLC is seeking a Senior DevOps Engineer to drive faster, more reliable software delivery through automation and operational discipline. The role bridges development and operations to remove friction, improve collaboration, and ensure releases reach users with less disruption.

The candidate will configure CI/CD, manage IaC, helm charts for OpenShift, and maintain system security and documentation in a complex environment. Onsite in Springfield, VA or St.