Sr. Principal DevOps Engineer (AHT)

We are seeking a Sr. Principal DevOps Engineer to lead the design, implementation, and continuous improvement of our CI/CD pipelines and runtime environments. You will own our GitLab-based delivery platform, drive automation across build/test/deploy, and mentor engineers while partnering closely with development, quality assurance, and operations teams.

This position will be based in Aurora, CO. Key Responsibilities Own and evolve GitLab CI/CD pipelines for multiple services and environments. Architect, implement, and maintain robust CI/CD workflows (build, test, security, deployment, rollback).

Design and maintain Docker image build processes (Dockerfiles, multi-stage builds, image scanning, registries). Support and optimize containerized runtime environments, including Docker Swarm and/or other orchestration platforms. Define and enforce branching strategies, merge request workflows, and release practices in GitLab.

Integrate quality gates into pipelines (unit tests, integration tests, Cucumber/BDD, static analysis, security scanning). Monitor pipeline performance and reliability; identify bottlenecks and drive continuous improvement. Implement configuration-as-code for pipeline definitions and deployment workflows (GitOps mindset).

Collaborate with development and QA to ensure safe, repeatable, and observable releases. Mentor and coach engineers on DevOps practices, tooling, and automation patterns.

Basic Qualifications Bachelor's degree with 8+ years of relevant experience, OR Master's degree with 6+ years of relevant experience is required. 4 additional years of experience is required in lieu of a degree. Must have an active U.S.

Government Top Secret security clearance at time of application, current and within scope, with the ability to obtain and maintain SCI approval/access. Experience as a DevOps Engineer (or similar), including demonstrated senior-level responsibilities. Hands-on experience with GitLab and GitLab CI (pipeline YAML, runners, environments, variables).

Experience with Docker (image builds, runtime configuration, registries, best practices). Solid understanding of source control and release management (branching, tagging, versioning, hotfix flows). Strong scripting/automation skills (e.g., Bash, Python, or similar).

Experience working in Linux environments. Familiarity with Agile ways of working and collaborating via tools like Jira/Confluence. Excellent communication skills and the ability to collaborate and influence technical direction.

Demonstrated team player mindset and experience mentoring other engineers. Preferred

Qualifications: Bachelors' STEM degree is highly preferred. Experience deploying and managing applications on Docker Swarm or similar orchestration platforms. Experience with infrastructure-as-code tools such as Ansible.

Experience integrating Cucumber (or other BDD frameworks) into CI/CD pipelines. Experience implementing security and compliance checks in CI/CD (SAST/DAST, dependency scanning, container scanning). Knowledge of observability tooling (e.g., Prometheus, Grafana, ELK/EFK) and release monitoring.

Background in pipeline optimization (parallelization, caching, artifact management, cost/performance tuning). Experience building and deploying applications in Rust and/or C++, including integrating Cargo or CMake workflows into GitLab CI. Primary Level Salary Range: $142,200.00 - $213,400.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions.

Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives.

In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates.

Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO.

U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. Existing Applicants: Need to update your contact information or email address?

Once logged in, click on Candidate Home in the upper right corner and scroll to the bottom of that screen to see buttons for: Update Contact information to update your legal name, address, and phone number Edit Account Settings to edit your email address We are a pioneering company. With careers across all areas: air, cyber, land, sea and space - our 90,000 employees work as one to defend and define the future.

Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will give you every opportunity to do your best work. Working together with people from many backgrounds, personal passions and disciplines, we share a drive to push the boundaries of science, technology and engineering to meet the ever evolving needs of our customers worldwide.