Senior DevSecOps Engineer | TS/SCI

Cornerstone Defense; Reston (VA); On-site; USD 160,000 - 210,000; Full time

Benefits offered by this job

401(K) match

tuition and training assistances

paid vacation/leave

fitness reimbursement program

college savings plan

commuter benefits

financial advisory services

flex spending accounts

health savings accounts

STD/LTD coverage

life and AD&D insurance

employee assistance programs

life financial planning assistance

legal resources

Job summary

Cornerstone Defense is seeking an experienced Sr. DevOps Engineer III to design, implement, and maintain secure software development and deployment pipelines across Reston, VA; College Park, MD; and DC area bases.

You will integrate security into the development lifecycle, enabling high-quality, reliable software delivery in a demanding environment. You will lead Terraform/CloudFormation IaC, CI/CD workflows in GitLab and Jenkins, and guide junior engineers while ensuring STIG compliance and

Qualifications

• Active TS/SCI Clearance with CI poly.
• 10+ years of DevSecOps/Infrastructure automation experience.
• Strong AWS and DevSecOps pipeline expertise across multiple environments.
• Experience with STIG compliance and secure coding practices.

Responsibilities

• Collaborate with customers and internal teams to design and implement automatic technical solutions across multiple classification environments, working independently or as part of the team to address complex technical requirements.
• Develop CI/CD pipelines from scratch in GitLab CI and Jenkins with integrated security scanning and STIG compliance validation, providing expert guidance to development teams on pipeline troubleshooting and implementing DevSecOps best practices.
• Create and maintain Infrastructure as Code (IaC) templates primarily using CloudFormation to architect highly available, resilient, and secure DevSecOps tool infrastructure across AWS environments (GovCloud, C2S, TC2S) while ensuring STIG compliance and guiding junior engineers on IaC best practices.
• Lead advanced troubleshooting efforts by analyzing system and application logs using Linux command-line tools, conducting root cause analysis for complex issues, and developing mitigation strategies for service degradation.
• Provide expert security guidance to development teams on secure coding practices, STIG compliance, vulnerability remediation, and other best practices in support of their ATO efforts.
• Mentor junior engineers through code reviews, technical guidance, and knowledge sharing while maintaining technical documentation, promoting best practices, and fostering continuous team improvement.

Skills

DevSecOps

CI/CD pipelines

Linux

AWS

Terraform

CloudFormation

Ansible

Jenkins

GitLab CI/CD

Python

Tools

Jenkins

GitLab CI/CD

Artifactory

SonarQube

Prisma Cloud

Job description

Cornerstone Defense is seeking an experienced Sr. DevOps Engineer III to design, implement, and maintain secure software development and deployment pipelines across Reston, VA; College Park, MD; and DC area bases.

You will integrate security into the development lifecycle, enabling high-quality, reliable software delivery in a demanding environment. You will lead Terraform/CloudFormation IaC, CI/CD workflows in GitLab and Jenkins, and guide junior engineers while ensuring STIG compliance and