Senior Systems Engineer
Company: MANTECH
Role summary
Senior Systems Engineer is a full-time role at MANTECH in Chantilly, Virginia, United States (on-site). Posted 2026-10-02. Salary: USD 98,000–163,100 per year. Experience level: 5-10. No degree required.
- Job title
- Senior Systems Engineer
- Company
- MANTECH
- Location
- Chantilly, Virginia, United States
- Work arrangement
- on-site
- Employment type
- full-time
- Category
- Software Engineering
- Salary
- USD 98,000–163,100 per year
- Experience level
- 5-10
- Degree required
- No
- Date posted
- 2026-10-02
Here's a fantastic opportunity with MANTECH, a company that's been at the forefront of defense technology since 1968. They're looking for a Senior Systems Engineer, and you don't even need a degree for this role! The salary is very competitive, and you'll be working on impactful projects that truly make a difference.
Job description
Description & Requirements
Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!
MANTECH seeks a motivated, career and customer-oriented Senior Systems Engineer to join our team in Chantilly, VA . The position is onsite .
Responsibilities include but are not limited to:
Provide Tier III IT Systems support for customer Linux or Red Hat Enterprise Linux (RHEL) server environments
Install, configure, maintain, and optimize Linux and RHEL Server environments to ensure reliable and secure infrastructure
Diagnose and resolve the performance, security, and/or technical challenges related to the platforms listed above
Monitor performance, capacity, and backups; perform test restores and implement system updates, patches, and improvements
Investigating and resolving operational problems in conjunction with other engineering and technical personnel
Lead the development and documentation of system processes and train team members to ensure operational consistency and knowledge transfer
Writing Standard Operating Procedures (SOPs) to accomplish repeatable tasks
Working on project teams responsible for engineering and packaging releases to integrate within the customer’s production IT environment
Contribute to strategic planning, solve complex technical problems, and lead Linux and RHEL engineering projects or functional teams when required
Participating in processes throughout all phases of the ITIL Service Lifecycle, including submitting Change Requests
Performing requirements analysis, requirements gathering, and integration for all platforms listed above
Willingness to occasionally work after normal duty hours (nights and weekends) to support system maintenance or service outages
Minimum Qualifications:
Bachelor’s degree with 5+ years of relevant Linux or RHEL experience, an Associates degree with 8+ years of experience, or a High School Diploma with an 11+ years of experience may be substituted for a Bachelor's degree
Hands-on experience or knowledge with configuration and implementation at command-line interface, of Linux or RHEL Server technologies within an on-premise infrastructure
Experience with Active Directory, Domain Name System (DNS), and Dynamic Host Configuration Protocol (DHCP)
Experience performing Linux and RHEL server upgrades, migrations, and deployments
IAT Level III/DoD 8140 Advanced certification, e.g., SecurityX or CASP+ within 6 months of hire
DoD 8570 Computing Environment certification within 6 months of hire
Preferred Qualifications:
Red Hat Certified System Administrator (RHCSA) certification
Experience with scripting languages such as Bash, Python, or Perl to automate system tasks
Familiarity with configuration management tools like Ansible to maintain system baselines
ITIL v.3 Foundations or later certification highly desired
Experience using a Service Desk ticketing system, such as TrackIT or ServiceNow
Previous customer service experience strongly desired
Clearance Requirements:
Must have a current and active Top Secret clearance, and be willing and able to obtain a CI polygraph
Physical Requirements:
The person in this position must be able to remain in a stationary position 50% of the time
Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations
The projected compensation range for this position is $98,000.00-$163,100.00. 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.
General information
Requisition #
R70010
Locations
USA-VA-Chantilly
Posting Date
08/15/2026
Security Clearance Required
Top Secret
Remote Type
Onsite
Time Type
Full time