Senior Python Developer Jobs in Leesburg, VA (NOW HIRING)

TITLE: Sr. DevSecOps Engineer

LOCATION: Sterling, VA (Relocation assistance considered)

CLEARANCE REQUIRED: Active TS/SCI with CI Polygraph

EMPLOYMENT TYPE: Full-Time, Onsite

POSITION SUMMARY

MGS is seeking a Sr. DevSecOps Engineer to design, implement, and sustain CI/CD pipelines, test automation frameworks, and DevSecOps workflows within secure cloud environments in support of national security missions. In this role, you will drive automation, integration, and quality assurance across iterative development projects, ensuring platform reliability and security compliance. Working alongside engineering, cybersecurity, and infrastructure experts, you will troubleshoot complex issues, develop integration interfaces, and implement improvements that directly enable mission delivery.

RESPONSIBILITIES (not limited to):

• Design, implement, and maintain CI/CD pipelines, test automation frameworks, and DevSecOps workflows within cloud-based environments.
• Support cloud architecture and system design, with a preference for AWS.
• Develop and maintain integration interfaces using Python, PowerShell, and Groovy.
• Decompose and manage tasks using Agile methodologies and Jira story development.
• Build and maintain robust test plans; perform system testing, validation, and troubleshooting to ensure operational readiness.
• Administer and maintain system components, API gateways, and catalogs.
• Implement and maintain DevOps automation using Ansible, Terraform, Jenkins, GitLab, Active Directory, IdAM, and LDAP.
• Support containerized environments utilizing Rancher, Kubernetes, or similar technologies.
• Quickly assess and apply customer security requirements and processes.
• Create and maintain technical documentation and operational procedures.

REQUIRED SKILLS AND QUALIFICATIONS

• Must possess an active DoD TS/SCI security clearance with CI Polygraph.
• Must meet DoD 8140 requirements, including Security+ CE certification.
• Bachelor's or master's degree in a STEM field. Experience may be acceptable in lieu of a degree.
• 10+ years of experience with CI/CD, test automation, and DevSecOps on iterative development projects.
• Experience with cloud architecture and system design, preferably AWS.
• Experience developing integration interfaces using Python, PowerShell, and Groovy.
• Experience with DevOps tooling including Ansible, Terraform, Jenkins, GitLab, Active Directory, IdAM, and LDAP.
• Experience with API gateways and catalogs.
• Familiarity with Agile methodologies and task decomposition using Jira.
• Familiarity with containerized development environments including Rancher and Kubernetes.

DESIRED SKILLS AND QUALIFICATIONS

• Experience with Model-Based Systems Engineering (MBSE) infrastructure and tools.
• Experience configuring and instrumenting monitoring and visualization tools such as Grafana and Splunk.
• Experience implementing and integrating ServiceNow solutions.
• Experience supporting virtualization technologies and application streaming or layering techniques.
• Experience leading from a total system perspective across cloud services, infrastructure, and security domains.
• Experience configuring and administering SharePoint, IBM Engineering Lifecycle Management (ELM), Teamwork Cloud/Cameo, and Tableau.

*Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information.*

ABOUT US

At MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, inclusion, and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: inclusion, integrity, and a commitment to excellence.

MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.