Senior Cyber Security Engineer

MANTECH•Denver, CO

8h•$114,600 - $190,200•Onsite

About The Position

MANTECH is seeking a motivated, career- and customer-oriented Senior Cyber Security Engineer to join its team in Chantilly, Virginia, or Denver, Colorado. The role supports specialized cybersecurity systems for government intelligence customers. The engineer works directly with customers on cybersecurity tool onboarding and troubleshooting, and provides Tier 2 and Tier 3 maintenance, engineering, and system administration support across deployed technologies. The position is onsite and requires an active TS/SCI with Polygraph clearance.

Requirements

Bachelor's degree or at least 4 years of relevant experience in lieu of a degree.
Experience with firewalls, routers, switches, and load balancers.
Knowledge of Windows and Linux systems administration, general operating system security practices, TCP/IP networking, and network security concepts.
Knowledge of and proficiency in AWS technologies.
Must have or be willing to obtain an IAT Level II certification within 3 months of hire.
Excellent written and oral communication skills, strong analytical and problem-solving skills, and ability to thrive in a dynamic, agile environment.
Active TS/SCI with Polygraph clearance.

Nice To Haves

Understanding of federal cybersecurity guidance, including NIST SP 800-37 (RMF) and NIST SP 800-137 (ISCM).
Experience with programming languages such as Python, Go, Java, JavaScript, or Node.js.
Ability to work in a fast-paced environment, manage multiple tasks simultaneously, and interact with various levels of senior management.
On-the-job training availability for RedSeal, Forward Networks, and other specialized cybersecurity tools.

Responsibilities

Work with customers on cybersecurity tool onboarding, updates, and troubleshooting, providing support by phone, email, or messaging services.
Provide Tier 2 and Tier 3 maintenance and engineering support, and administer specialized cybersecurity applications, including installation, configuration, maintenance, patching, and backup and restore operations.
Collaborate with engineers to troubleshoot and build proof-of-concept network topologies, and analyze customer feedback to support process improvement.
Support Assessment and Authorization (A&A) activities related to cybersecurity technologies and identify potential conflicts with enterprise tool implementation.
Recommend remediations for tool conflicts and suggest ways to automate repetitive project tasks and metrics collection using scripts.
Update project documentation and identify workflow efficiencies based on a thorough understanding of customer requirements.
Perform other project and corporate duties as assigned to support customer mission requirements.