Senior Systems Engineer

General information

Requisition #

R69975

Locations

USA-DC-Washington

Posting Date

08/13/2026

Security Clearance Required

TS/SCI

Remote Type

Onsite

Time Type

Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Senior Systems Engineer to join our team for the DOE NNSA PRI contract in Washington DC. This role offers the opportunity to contribute to critical national security efforts within a leading organization. This is an onsite position.

Responsibilities include, but are not limited to:

• Perform full incident lifecycle from escalation to resolution and problem management; prepares and delivers presentations to colleagues, subordinates, and government representatives.
• Assures the proper use of current or requested testing and documentation techniques; produces, reviews substantive and complex documentation reflecting detailed knowledge of areas as identified in the statement of work.
• Triage, collect troubleshooting information, apply known solutions; create, direct, and resolve requests
• Perform routine system operations such as health checks, administer backup and restores, execute configuration changes
• Conduct system analysis and provide input to Microsoft engineering continuous improvement process.
• Participate in prime & customer change control / engineering management processes; document changes to all systems; coordinate and complete deployments and upgrades with Azure Engineering and the customer.
• Develop automation for most common tasks; maintain pre-production and production environments and associated code repository.

Minimum Qualifications:

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or a related field and 15 years of related experience; or Master's Degree in Cybersecurity, Computer Science, Information Technology, or a related field and 12 years of related experience.
• IAT Level 2 certification(s)
• Experience with Sentris and MS Windows Based Applications in Mid-to-Large Environments; experience with Active Directory Domain Services
• Exchange 2019, SharePoint Server 2019, SQL Server 2019, Skype for Business 2019
• Experience managing a schedule and communicating scheduling requirements to management, multi-tasking/ prioritizing responsibilities and responding rapidly to changing conditions in a fast-paced environment
• Excellent communication skills, with the ability to convey technical information to diverse audiences.
• Ability to successfully pass Pre-Employment Drug Screening.

Clearance Requirements:

• Must have a current/active TS/SCI security clearance with eligibility for SAP.
• Periodic Review within 5 years or enrolled in Continuous Evaluation.

Physical Requirements:

• Must be able to remain in a stationary position up to 75% of the time
• Must be able to move about inside the office to access file cabinets, office machinery
• The person in this position frequently communicates with co-workers, management, and
• customers, which may involve delivering presentations.
• Must be able to exchange accurate information in these situations

The projected compensation range for this position is $179,300.00-$318,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.