System Administrator (All Levels)
Adaptic
Where Systems Meet Mission: Join us as a System Administrator!
At Adaptic, our System Administrators don't just maintain systems—they keep mission-critical environments running, secure, and optimized. Supporting the DoD and Intelligence Community, you'll work on infrastructure that directly enables real-world operations.
Whether you're early in your career or leading system administration efforts across complex environments, we're looking for System Administrators at all levels who thrive on solving problems, improving performance, and ensuring reliability where it matters most.
Your Impact
You'll support and enhance mission systems across their lifecycle—ensuring stability, performance, and security in dynamic environments. Day-to-day, that can look like:
- Supporting implementation, troubleshooting, and maintenance of IT systems across mission environments
- Managing system infrastructure, including servers, storage, networks, and endpoints
- Monitoring system performance and resolving issues across client/server and distributed environments
- Providing Tier 1 and Tier 2 support, including troubleshooting and escalation of complex issues
- Configuring and maintaining UNIX/Linux and Windows operating systems
- Installing, patching, and upgrading system software to maintain security and performance
- Troubleshooting hardware, software, and network-related issues across integrated systems
- Supporting system enhancements to improve reliability, scalability, and efficiency
- Managing system resources and performing capacity planning and optimization
- Collaborating with engineering teams to support system integration and architecture needs
- Communicating system status, issues, and resolutions to internal stakeholders and leadership
Qualifications
- All positions require an active TS/SCI with polygraph
- Experience supporting and maintaining IT systems in Linux/Unix and/or Windows environments
- Strong troubleshooting skills across systems, applications, and infrastructure
- Experience with system monitoring, patching, and performance optimization
- Understanding of networking concepts and system interdependencies
- Ability to work independently and as part of a team in fast-paced environments
- A degree in Computer Science, Information Technology, or a related field (or equivalent experience)
Nice to Have
- Experience with virtualization technologies (e.g., VMware, ESXi)
- Familiarity with automation or scripting (e.g., Bash, Python, PowerShell)
- Experience with configuration management tools (e.g., Ansible, Puppet, Salt)
- Exposure to cloud environments or hybrid infrastructure
- Experience supporting mission or high-performance computing environments
Stability first. Performance always . Apply now to learn more about our extensive benefits and customizable compensation packages.
$145k - $172k
...SECURITY CLEARANCE AT THE TS/SCI POLYGRAPH LEVEL IS REQUIRED Serve as the operational backbone of high-stakes IT systems where reliability and performance matter most... ..., Required Skills Operating System Administration: Strong hands-on experience installing, configuring...SuggestedHourly payContract workWork experience placementImmediate startFlexible hours- ...DoD 8570 compliance with Information Assurance Technical (IAT), Level II or higher is required ~**Experience with DevOps, AWS... ...support for implementation, troubleshooting and maintenance of IT systems Provide Tier 1 (Help Desk) problem identification, diagnosis...SuggestedContract workWork experience placementLocal area
$114k - $164k
...a finalist in 2021! Belay Technologies is seeking a System Administrator to join our intel team. You will work on a fast paced-team providing... ...8570 compliance with Information Assurance Technical (IAT) Level I is required Must be able to work core hours of 10AM-2PM...SuggestedContract workWork experience placementMonday to FridayFlexible hours$10k
...Bachelor’s degree in technical field such as System Engineering, Computer Science,... ...preferred. Must have experience as a systems administrator providing direct support to end users... ...The pay range for this job, with multi-levels, is a general guideline only and not a guarantee...SuggestedContract workTemporary workImmediate start$10k
...polygraph Must be a US Citizen This position is open to multiple levels of years of experience; two (02) years within the last five (05) years must be directly related to Systems Administration: o Level 04 requires a minimum fifteen (15) years of experience...SuggestedContract workTemporary workImmediate start$70 - $88 per hour
...Security Clearance with Polygraph is required System Administrator – Skill Level 2 Are you a Linux-savvy systems professional looking to take your career to the next level? We're looking for a talented and motivated System Administrator (Level 2) to join our team...Hourly payFull timeTemporary workImmediate startRelocation packageFlexible hours- ...What You Will Do: As a System Administrator Level 2 at Independent Software, you will support the implementation, troubleshooting, and maintenance of mission-critical Information Technology (IT) systems supporting national defense and intelligence operations....Full time
- ...support all our customers. With certified experts consulting our clients, we can address the customer’s mission. SA-1 System Administrator Level 1 Provides support for implementation, troubleshooting and maintenance of information Technology (IT) systems....
- ...Job Description Job Description What You Will Do: As a System Administrator Level 2, you will provide hands-on support for the implementation, troubleshooting, maintenance, and optimization of enterprise IT systems supporting mission-critical operations. You will...
- ...us support all our customers. With certified experts consulting our clients, we can address the customer’s mission. System Administrator Level 3 • Provide support for implementation, troubleshooting and maintenance of IT systems •...
- ...Job Description Job Description What You Will Do: At Independent Software, as a System Administrator Level 2, you will support the implementation, administration, maintenance, and troubleshooting of IT systems in a secure technical environment. You will manage...
- ...MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in the Annapolis Junction, MD Responsibilities... .... Provide support to computer systems and component level Trade-Off Analysis & Analysis of Alternatives and contribute...Flexible hours
$205k - $215k
...Systems Engineering Position Citizenship Requirement: Must be a U.S. Citizen Clearance Requirement: TS/SCI clearance with polygraph... ...user's requirements, concept of operations documents, and high level system architecture to develop system requirements specifications...Contract workWork experience placementLocal area- ...System Engineer Level 3 Jovian Concepts, LLC is looking to hire a System Engineer Level 3 for a great opportunity in the Annapolis Junction... ...tuning. Deliver training and technical guidance to administrators, operators, and cross-functional engineering teams while ensuring...
$131k - $161k
...complex CNE services, creating integration patterns between legacy systems and new HPC, and ensuring solutions maintain security controls... ...on several different factors including, but not limited to: level of position, complexity of job responsibilities, geographic location...Contract workWork experience placementLocal areaShift work- ...MANTECH seeks a motivated, career- and customer-oriented Cloud System Administrator to join our team in Annapolis Junction, MD. Our team... ...compliance with security standards. Provide expert-level troubleshooting for complex technical issues. Collaborate...Work at office
$155k - $255k
...Job Description Job Description Description: DarkStar Intelligence is seeking a System Administrator Level 2 to support the implementation, troubleshooting, and maintenance of critical Information Technology (IT) systems in a mission-focused environment. This role...Local area$92.3k - $166.85k
...About the Opportunity Leidos is seeking an experienced Senior System Administrator to support the implementation, operation, troubleshooting,... ...$92,300.00 - $166,850.00 The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation...Local areaImmediate start$114k - $190k
...21! Belay Technologies is seeking a System Admin to join our intel team. The selected individual will provide system administration support for a large, complex network environment... ...be within last 6 years ~ Preferred Level: Mid or Senior ~ Clearance Requirement:...Full timeContract workWork experience placementFlexible hours- ...virtual machines running in a cloud infrastructure (Amazon AWS). - Evaluates systems for IAVA compliance and applies necessary security updates/patches. - Performs command line system administration tasks on virtual machines. - Handles regular system backups and...Temporary workLocal area
- ...Bachelor's degree in a technical discipline from an accredited college or university is required. Five (5) years of additional system administration experience may be substituted for a bachelor's degree. Must be able to work Wed-Sun 2pm-10pm Hardware Experience...Contract workWork experience placementLocal areaRemote workWorldwide
- ...motivated, career-driven, and customer-focused Sr. Linux/VMWare System Administrator to join our team in Laurel, MD. This position supports... ...of relevant System Administration experience Senior level Linux Systems Administration experience is required Experience...Work at office
$120k - $157.5k
...System AdministratorBelay Technologies is seeking a System Administrator to join our Intel team. The System Administrator will provide Linux systems administration and... ...as JMS, TIBCO, ActiveMQ, Artemis, or Kafka.IAT Level I or applicable IA baseline certification in Linux...Contract workWork experience placementFlexible hours$115k - $190k
.../SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance. Are you a Mid-Level Systems Engineer who is ready for a new challenge that will launch your career to the next level? Tired of being treated...Full timeContract workRemote workWork from homeRelocation package$105k
...you passionate about shaping secure, IT systems in classified environments? Do you want... ...team at APL! We are seeking a Linux System Administrator to join the Weapons and Countermeasures... ...owned devices. Hold an Interim Secret level security clearance and can ultimately obtain...Temporary workWork experience placementInterim roleRemote workRelocation packageFlexible hours$118.1k - $200.76k
...Manage OS patching, kernel dependences, and system performance tuning. Support... ...Assist with migration, deployment, and administration of Linux workloads in cloud environments... ...incentives may be available based on position level and/or job specifics. About BAE Systems...Full timeWork at officeLocal areaWorldwide$86.54 - $110.58 per hour
...Job TitleLinux Systems AdministratorOverviewEverWatch is a government solutions company... ...systems and workstationsKnowledge of System Administration interdependencies specific to RHEL 8 and... ...and workstationDoD 8570-Compliant IAT Level II or III Certification, such as...Hourly payContract workLocal area- ...Mid-Level Systems Engineer 2HB Incorporated is seeking a Mid-Level Systems Engineer in order to support its government customer in Annapolis Junction, MD. This is a full-time position, and requires a TS/SCI/Full Scope Polygraph Clearance. Description: 2HB is seeking...Full time
- Description: This team helps vet and onboard DIB companies with the variety of services the CCC Partnerships Team offers. Essential Duties and Responsibilities: Perform basic Linux tasks to include SSH to remotely connect to a linux machine, install software...Full timeRemote work
$110k - $130k
...Job Description Job Description Job Title Mid‑Level Systems Integration Engineer (Linux, Unix, C) Why IDS? IDS believes in resolving... ...experience with Linux systems • Experience in systems administration, network administration, application administration, or IT...Local areaFlexible hoursShift work
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