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DevSecOps Engineer, Senior - TS​/SCI Clearance Security Clearance

Job in King of Prussia, Montgomery County, Pennsylvania, 19406, USA
Listing for: Lockheed Martin
Full Time position
Listed on 2026-02-20
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: DevSecOps Engineer, Senior - Active TS/SCI Clearance to Start with Security Clearance
Job Number 717368

Description:

The coolest jobs on this planet... or any other... are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds' hardest engineering problems.

Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. The Space Security Division within Lockheed Martin Space's Mission Solutions business area is seeking a talented and dedicated Systems Engineer-IT to become a member of an Agile team focused on IT Infrastructure (Systems Administration, Networking, & Hardware) in the Foxtrot Program Area.

Are you a Senior Dev Sec Ops  Engineer for something different? In this role you will:
Have access to growth opportunities where you can make a difference to a very important mission. Be involved in cloud and Kubernetes system administration
Build upon inner-sourced infrastructure-as-code and contribute to shared repositories across organizations
Support internal research and development (IRAD)
Design new capabilities
Support system security accreditation and process optimization
Demonstrate your great work ethic, communication skills, creativity and problem-solving skills to make a lasting difference. This is a level 3, early to mid career role where successful Applicants will:
Typically possess a minimum of 3 years of professional experience having received a Bachelors Degree from an accredited college/university in a related discipline, or additional experience/combined education in lieu of degree Selected candidate must have a TS/SCI security clearance prior to start.

Basic Qualifications:

- Current DoD IAT Level II certification (i.e. Sec+ CE)
- Active TS/SCI clearance with the ability to obtain and maintain a Poly
- 3+ years of hands-on experience in Dev Ops/Dev Sec Ops  engineering (infrastructure-as-code, CI/CD, automation).
- Strong proficiency with cloud platforms (AWS, Azure, or GCP) and container orchestration (Kubernetes, Open Shift).
- Strong Linux experience - daily administration of Red Hat, Ubuntu, or similar distributions, Bash/Python scripting, package management, system hardening, and troubleshooting.
- Excellent problem-solving skills and the ability to work independently and in cross-functional teams
- Strong documentation skills-producing design docs, test plans, operating instructions, and post-mortem reports.
Desired

Skills:

- 5 + years of progressive Dev Sec Ops  or systems-engineer experience, especially in defense, aerospace, or mission-critical domains.

- Experience with Git Ops workflows (Argo CD, Flux) and service mesh security (Istio, Linkerd).
- Hands-on with CI/CD platforms (Jenkins, Git Hub Actions, Git Lab CI, Azure Dev Ops) and pipeline hardening.

- Experience with Prometheus/Grafana, Splunk, ELK, or similar stacks
- Experience implementing NIST Risk Management Framework (RMF) and NIST SP 800-53 controls
- Experience in software development (Java, Go, .NET) to better understand code-level security.
- Experience in agile team leadership or customer interaction #LMSpace Dev Ops
#Space Security
Security Clearance Statement:
This position requires a government security clearance, you must be a US Citizen for consideration.
Clearance Level: TS/SCI w/Poly
Other Important Information You Should Know
Expression of Interest:
By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.
Ability to Work Remotely: Onsite Full-time:
The work associated with this position will be performed onsite at a designated Lockheed Martin facility.
Work Schedules:
Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.
Schedule for this Position: 9x80 every other Friday off
Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.
At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and…
Position Requirements
10+ Years work experience
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