Senior DevSecOps Engineer (Systems Engineer III)

Job Description

Job Description

This position requires an ACTIVE DoD security clearance. Applicants who do not currently hold an active clearance will not be considered.

At PMAT , we work on mission critical systems that directly support the warfighter, designing, building, and securing modern digital capabilities across cloud, data, and software environments. Our teams tackle complex, real-world challenges where delivery matters more than theory, and innovation is driven by curiosity, collaboration, and purpose. 

In this role, you’ll contribute to secure software engineering, DevSecOps, and systems integration across DoD environments, working alongside engineers and operators to deliver resilient, forward-leaning solutions in support of national defense. 

About the role: PMAT is seeking a Senior DevSecOps Engineer (Systems Engineer – Level III) to support the engineering and integration of mission-critical software capabilities across containerized, virtual-machine, cloud-based, and PaaS environments. In this role, you’ll work across complex DoD environments and multiple security domains, supporting secure software delivery, DevSecOps pipelines, systems interoperability, and capabilities designed to operate in challenging DDIL, afloat, and ashore environments. 

Responsibilities:  

• Support full-lifecycle software development across containerized, virtual-machine, and cloud-based architectures. 

• Support software engineering and delivery across Unclassified, Secret, and Top Secret security domains. 

• Configure and integrate automated security testing tools within CI/CD pipelines, including SAST, DAST, SCA, and container scanning. 

• Support DevSecOps pipelines and associated security quality gates within highly regulated DoD environments. 

• Engineer, integrate, and troubleshoot interoperable software systems supporting critical defense platforms. 

• Support software capabilities operating within DDIL, afloat, and ashore PaaS environments. 

• Support interoperability across Navy ACS, USMC CHE, and architectures designed for Five Eyes (FVEY) partner interoperability. 

• Work within Agile software development environments to support the delivery and integration of mission capabilities. 

About Us:   PMAT is an innovative small business founded with a passion for developing forward-leaning solutions from exceptional people that increase the mission's capability. We focus on designing and building impactful digital solutions that utilize modern cloud, data, and software concepts. Our passion is working on complex and progressive challenges such as edge platform computing, containerizing legacy platforms, distributed data platforms, or heterogeneous data analysis. 

We recruit, retain, and foster a team motivated to pursue passions, investigate new ways of doing things, and embody an innovative and entrepreneurial spirit. We believe in being curious about every element of a problem and experiment relentlessly. We foster continuous learning in an environment that encourages positive collaboration and expands our capabilities. We tap into collective intelligence, acknowledging that the most brilliant people may not be in the room.  Above all else, we believe that delivering and demonstrating is more potent than a sheet of paper. We are passionate about mission-centric design and delivering effective capabilities to and for the warfighter. 

Whether you’re an experienced engineer or just beginning your career, you’ll work alongside experts who are committed to solving mission-critical problems. If you’re passionate about using your skills to make a real difference, apply today and become part of a team that’s shaping the future of defense technology! 

Required Skills and Experience:  

• Minimum 7+ years of demonstrated full-lifecycle software development experience for containerized, virtual-machine, and cloud-based architectures across multiple security domains (Unclassified, Secret, Top Secret) using Agile methodologies. 

• Minimum 4 years of demonstrated DevSecOps experience configuring automated security testing tools (SAST, DAST, SCA, and container scanners) as CI/CD quality gates within highly regulated, Government-mandated pipelines such as Overmatch Software Armory (OSA) or equivalent DoD enterprise DevSecOps environments. 

• Minimum 3 years of demonstrated experience engineering, integrating, and troubleshooting interoperable software systems within critical defense platforms in Denied, Disrupted, Intermittent, and Limited-bandwidth (DDIL), afloat, and ashore PaaS environments, including but not limited to Navy ACS, USMC CHE, and architectures designed for Five Eyes (FVEY) partner interoperability. 

Education and Certification Requirements:  

• Bachelors degree, STEM or related field; experience in lieu of degree 

Citizenship and Clearance requirements:  

• U.S. Citizenship required 

• No dual citizenship 

• Active Top Secret clearance w/ SCI eligibility required 

• Active Top Secret/SCI clearance preferred 

Location/Address:  

• Onsite 

• San Diego, California 

• Within laboratories and vessels, including Sensitive Compartmented Information Facilities (SCIFs). 

Work Environment:   PMAT offices as needed. In some cases, work in a government facility may be required. Travel may be required for customer engagement, team coordination, and potentially for business development. 

PMAT is an equal-opportunity employer. We believe in hiring a diverse workforce and sustaining an inclusive, people-first culture. We are committed to non-discrimination on any protected basis, such as disability and veteran status, or any other basis covered under applicable law.