Senior Systems Engineer

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

• 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

• 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

• Must have a current and active Top Secret clearance, and be willing and able to obtain a CI polygraph

• 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