{"schemaVersion":"jobsearcher.job.v1","id":"b353e08e8201b1c1adc86a2a","url":"https://jobsearcher.com/jobs/b353e08e8201b1c1adc86a2a","canonicalUrl":"https://jobsearcher.com/jobs/b353e08e8201b1c1adc86a2a","title":"Senior Systems Engineer","description":"MANTECH seeks a motivated, career, and customer-oriented Senior Systems Engineer to join our team in Chantilly, VA .\n\nYou will help troubleshoot and fix a cyber security testing environment while developing its replacement. By leveraging your strong technical background, you will support the improvement and sustainment of mission-driven IT solutions that enable secure enterprise operations. This role provides the opportunity to cross train in additional IT areas (e.g., networking, cyber security, etc.).\n\nResponsibilities\n\nTroubleshooting and fixing a 1.0 cyber security testing environment, while developing a 2.0 cyber security testing environment\n\nImproving performance and increasing security of 1.0 and 2.0 environments\n\nWorking with other groups on the same program to troubleshoot issues, apply fixes, improve performance, and increase environment security\n\nWorking with other system engineers, system administrators, and security engineers to develop and maintain robust diagrams for cyber defense capability test environments\n\nEvaluating and recommending technology upgrades to support performance improvements and alignment with industry best practices\n\nMonitoring and analyzing performance and faults while proposing solutions for system optimization and collaborating with stakeholders to coordinate technical information\n\nHelping security engineers resolve issues and document solutions in SNOW\n\nMinimum Qualifications\n\nBachelor’s degree or 4+ years of additional work experience in lieu of a degree\n\n3+ years of experience in IT, system engineering, and/or system administration\n\nIAT Level II certification or higher (Security+, etc.) or the ability to obtain certification within 6 months of hire\n\nExperience creating, maintaining, and communicating complex IT documentation\n\nExperience developing, administering, and troubleshooting systems that handle government data while ensuring they meet all cyber security requirements\n\nExperience with technologies supporting large-scale enterprise deployments or data centers and inventorying complex systems and networks\n\nPreferred Qualifications\n\nExperience implementing and supporting complex, multi-component software solutions across a large environment\n\nExperience deploying enterprise security software including firewalls, intrusion prevention systems (IPS), and virtualization platforms\n\nKnowledge of Windows and Linux systems, WSUS and PDQ, ServiceNow (SNOW), Tenable/Trellix, ESXi servers, TCP/IP networking, 802.1x, and core network security principles\n\nClearance Requirements\n\nAn active TS/SCI with polygraph is required for this position\n\nPhysical Requirements\n\nMust be able to remain in a stationary position 50% of the time\n\nNeeds to occasionally move about inside the office to access file cabinets, office machinery, etc.\n\nFrequently communicates with co-workers, management, and customers, which may involve delivering presentations\n\nMust be able to exchange accurate information in these situations\n\n#J-18808-Ljbffr","company":"Hackajob","rawCompany":"hackajob","city":"Chantilly","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-07-11T03:13:53.994Z","occupations":[{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1244.00","title":"Network and Computer Systems Administrators","slug":"network-and-computer-systems-administrators"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541519","title":"Other Computer Related Services","slug":"other-computer-related-services"},{"code":"541513","title":"Computer Facilities Management Services","slug":"computer-facilities-management-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Systems Engineer","description":"MANTECH seeks a motivated, career, and customer-oriented Senior Systems Engineer to join our team in Chantilly, VA .\n\nYou will help troubleshoot and fix a cyber security testing environment while developing its replacement. By leveraging your strong technical background, you will support the improvement and sustainment of mission-driven IT solutions that enable secure enterprise operations. This role provides the opportunity to cross train in additional IT areas (e.g., networking, cyber security, etc.).\n\nResponsibilities\n\nTroubleshooting and fixing a 1.0 cyber security testing environment, while developing a 2.0 cyber security testing environment\n\nImproving performance and increasing security of 1.0 and 2.0 environments\n\nWorking with other groups on the same program to troubleshoot issues, apply fixes, improve performance, and increase environment security\n\nWorking with other system engineers, system administrators, and security engineers to develop and maintain robust diagrams for cyber defense capability test environments\n\nEvaluating and recommending technology upgrades to support performance improvements and alignment with industry best practices\n\nMonitoring and analyzing performance and faults while proposing solutions for system optimization and collaborating with stakeholders to coordinate technical information\n\nHelping security engineers resolve issues and document solutions in SNOW\n\nMinimum Qualifications\n\nBachelor’s degree or 4+ years of additional work experience in lieu of a degree\n\n3+ years of experience in IT, system engineering, and/or system administration\n\nIAT Level II certification or higher (Security+, etc.) or the ability to obtain certification within 6 months of hire\n\nExperience creating, maintaining, and communicating complex IT documentation\n\nExperience developing, administering, and troubleshooting systems that handle government data while ensuring they meet all cyber security requirements\n\nExperience with technologies supporting large-scale enterprise deployments or data centers and inventorying complex systems and networks\n\nPreferred Qualifications\n\nExperience implementing and supporting complex, multi-component software solutions across a large environment\n\nExperience deploying enterprise security software including firewalls, intrusion prevention systems (IPS), and virtualization platforms\n\nKnowledge of Windows and Linux systems, WSUS and PDQ, ServiceNow (SNOW), Tenable/Trellix, ESXi servers, TCP/IP networking, 802.1x, and core network security principles\n\nClearance Requirements\n\nAn active TS/SCI with polygraph is required for this position\n\nPhysical Requirements\n\nMust be able to remain in a stationary position 50% of the time\n\nNeeds to occasionally move about inside the office to access file cabinets, office machinery, etc.\n\nFrequently communicates with co-workers, management, and customers, which may involve delivering presentations\n\nMust be able to exchange accurate information in these situations\n\n#J-18808-Ljbffr","datePosted":"2026-07-11T03:13:53.994Z","dateModified":"2026-07-11T03:13:53.994Z","hiringOrganization":{"@type":"Organization","name":"Hackajob","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Chantilly","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"b353e08e8201b1c1adc86a2a"},"url":"https://jobsearcher.com/jobs/b353e08e8201b1c1adc86a2a"}}