Cybersecurity Systems Administrator

5 days ago


Maryland, United States ManTech Full time
Secure Our Nation, Ignite Your Future

ManTech is a leading provider of technology solutions and services to U.S. defense, intelligence, and federal civilian agencies. With over 53 years of experience, we specialize in delivering comprehensive cyber, data collection and analytics, enterprise IT, systems engineering, and software application development solutions that support national and homeland security.

Key Responsibilities:
  • Design and implement virtual environments using VMware ESX and VCenter Administration
  • Administer hardware and software systems in support of developing and testing information technology systems
  • Manage Linux systems and ensure their security and integrity
  • Configure and maintain storage and file systems, including NFS, EXT3/4, and XFS
  • Develop and deliver technical presentations, briefings, and program documentation to senior program management
Minimum Qualifications:
  • Self-starter with a minimum of 10 years of experience in systems administration of hardware and software in support of developing and testing information technology systems
  • Minimum 5 years of combined experience in Linux administration
  • Minimum 2 years of experience in writing scripts using Bash, Shell, Python, and Perl
  • Proficiency in working with network devices, including routers, switches, gateways, and hubs
  • Minimum 5 years of experience with computer networking protocols, including TCP, IP, UDP, DHCP, and DNS
  • Experience working with a team to introduce and integrate new technologies into existing production environments
  • Minimum 5 years of experience with integrated processing environments, such as a Storage Area Network
Clearance Requirement:
  • Active TS/SCI clearance with Polygraph
Preferred Qualifications:
  • Experience with DevOps tools, such as Docker, Kubernetes, SALT, and Puppet
  • Experience with cross-domain solutions or Nifi

ManTech is an equal opportunity employer and does not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.



  • Maryland, United States GradBay Full time

    Job Description**Job Title:** Cybersecurity Systems Administrator**Job Summary:** GradBay is seeking a highly skilled Cybersecurity Systems Administrator to join our team. As a key member of our IT department, you will be responsible for ensuring the security and integrity of our systems and networks.Key Responsibilities:System Security: Implement and...


  • Maryland, United States Lockheed Martin Full time

    About the RoleWe are seeking a highly skilled Linux Systems Administrator to join our team at Lockheed Martin. As a key member of our Cybersecurity Intelligence Team, you will be responsible for providing system administration support to our operations team.Key ResponsibilitiesProvide system administration support to the Cybersecurity Intelligence Team,...


  • Maryland, United States Castalia Systems Full time

    Job SummaryCastalia Systems is seeking an experienced CNO Analyst/Programmer to support our government customer on a cutting-edge contract. As a member of our team, you will contribute to the development of innovative cybersecurity tools and solutions.Key ResponsibilitiesDesign and develop custom software for cybersecurity toolsDevelop end-to-end data flow...


  • Belcamp, Maryland, United States Idea Entity Full time

    Job DescriptionJob Title: Cybersecurity Systems ArchitectJob Summary:We are seeking a highly skilled Cybersecurity Systems Architect to join our team at Idea Entity. As a key member of our organization, you will be responsible for designing, implementing, and maintaining scalable and reliable platform systems to support our business-critical applications and...


  • Maryland, United States National Security Agency (NSA) Full time

    Join the National Security Agency (NSA) as a vital contributor in the field of cybersecurity. We are seeking skilled professionals who are passionate about defending our nation's critical infrastructure against evolving cyber threats. Role Overview: As a Cybersecurity Systems Analyst, you will play a crucial role in various aspects of security, including:...


  • Maryland, United States Synergy ECP Full time

    About Synergy ECPFounded in 2007, Synergy ECP is a leading provider of cybersecurity, software, and systems engineering services to the U.S. intelligence and defense communities. Our expertise in data transport solutions, software, and systems engineering enables us to deliver critical and innovative capabilities to high-level decision makers, enhancing our...


  • Maryland, United States ARSIEM Corporation Full time

    ARSIEM Corporation is seeking a Systems Administrator to provide essential support for our government clientele.Clearance Requirement: An active TS/SCI clearance with a polygraph is mandatory. Candidates must be U.S. Citizens.Key Responsibilities:Deliver systems administration assistance to the Red, Hunt, and Blue teams engaged in national Cybersecurity...


  • Maryland, United States ARSIEM Corporation Full time

    ARSIEM Corporation is seeking a Systems Administrator to provide essential support for our government clientele.Clearance Requirement: An active TS/SCI clearance with a polygraph is mandatory. Candidates must be U.S. Citizens to be considered.Key Responsibilities:Deliver systems administration assistance to various teams engaged in national Cybersecurity...


  • Woodlawn, Maryland, United States IT Concepts Full time

    About the RoleWe are seeking a highly skilled Cybersecurity Systems Engineer to join our team at IT Concepts. As a key member of our organization, you will play a critical role in ensuring the security and integrity of our information systems.Key ResponsibilitiesDevelop and implement risk management frameworks to identify and mitigate potential security...


  • Belcamp, Maryland, United States Idea Entity Full time

    Job Title: Cybersecurity Platform Systems EngineerWe are seeking a highly skilled Cybersecurity Platform Systems Engineer to join our team at Idea Entity. As a key member of our engineering team, you will be responsible for designing, implementing, and maintaining scalable and reliable platform systems that support our business-critical applications and...


  • Patuxent River Estates, Maryland, United States Resource Management Concepts, Inc. Full time

    Position OverviewResource Management Concepts, Inc. (RMC) is dedicated to providing top-tier professional services across government and commercial sectors. Our mission focuses on delivering outstanding management and technology solutions that prioritize the safety and preservation of individuals and the environment in the United States.We are currently...


  • Patuxent River Estates, Maryland, United States Sabre Systems Inc. Full time

    About the RoleSabre Systems Inc. is seeking a highly skilled Cybersecurity Engineer to join our team. As a key member of our organization, you will play a critical role in ensuring the security and integrity of our systems and data.Key ResponsibilitiesParticipate in the formulation of processes and policies necessary for the execution of system security...


  • Maryland, United States Lockheed Martin Full time

    Job OverviewThis position is part of Lockheed Martin's Cyber & Intelligence team, where we develop innovative solutions for the defense and security sectors.Key ResponsibilitiesProvide systems administration support to the operations team on the Cybersecurity Intelligence Team (CIT) TTO, focusing on normalization of cyber security data and automation of...


  • Woodlawn, Maryland, United States IT Concepts Full time

    About the RoleWe are seeking an experienced Information Security System Engineer to join our team at IT Concepts. As a key member of our cybersecurity team, you will play a critical role in ensuring the security and integrity of our systems and data.Key ResponsibilitiesDevelop and implement risk management frameworks to identify and mitigate potential...


  • Maryland City, Maryland, United States Leidos Full time

    About the RoleWe are seeking a highly skilled Cybersecurity Systems Architect to join our team at Leidos. As a key member of our team, you will be responsible for designing and implementing secure Microsoft architectures to support our customer's mission needs.Key ResponsibilitiesProvide hands-on architecture and systems integration in support of Cyber Range...


  • Baltimore, Maryland, United States Baltimore City Community College Full time

    Job SummaryBaltimore City Community College's Business & Technology Department is seeking a qualified candidate for the position of Assistant Professor for Cybersecurity Digital Forensics. The successful applicant will have administrative experience and be qualified to provide instruction in courses such as Network Intrusion and Penetration Testing,...


  • Maryland City, Maryland, United States Johns Hopkins Applied Physics Laboratory (APL) Full time

    About the RoleWe are seeking a highly skilled Cybersecurity Hunt Specialist to join our team at the Johns Hopkins Applied Physics Laboratory (APL). As a Cybersecurity Hunt Specialist, you will play a critical role in proactively hunting, monitoring, analyzing, and responding to infrastructure threats, contributing to Computer Network Defense, and creating...


  • Maryland, United States Lockheed Martin Full time

    Job OverviewThis position may be eligible for a sign-on bonus up to $25K for external hires.What We're DoingJoin Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity.As a Linux Systems Administrator, you'll be empowered to create new realities and pioneer solutions that break boundaries.Collaborate with...


  • Maryland City, Maryland, United States The Johns Hopkins University Applied Physics Laboratory Full time

    About the RoleWe are seeking a highly skilled Cybersecurity Specialist to join our team at The Johns Hopkins University Applied Physics Laboratory. As a key member of our organization, you will play a critical role in ensuring the security and integrity of our information systems and technologies.Key ResponsibilitiesSecurity Operations: Develop and implement...


  • Aberdeen Proving Ground, Maryland, United States Soft Tech Consulting Full time

    About the RoleWe are seeking a highly motivated and self-directed Systems Administrator to join our team at Soft Tech Consulting, Inc. As a key member of our IT team, you will be responsible for providing expertise and support in the design, implementation, and maintenance of our enterprise IT infrastructure.Key ResponsibilitiesEnsure the availability and...