System Administrator TS/SCI Poly
$87.1k - $157.45kLeidos
Job Summary Leidos is looking for a System Administrator to support our Intellectual Sector’s Cyber & Analytics Business Area (CABA) in Alexandria, VA. The role involves daily system administration and O&M support of a complex, geographically distributed network environment, with a primary focus on sustaining and maintaining the company site in Alexandria. Primary Responsibilities Handling IT Help Desk calls and emails, ensuring all interactions are handled timely and professionally. Utilizing enterprise monitoring solutions to identify and respond to alarms affecting the environment. Troubleshooting and correcting hardware, software and network connectivity issues with guidance from senior System Administrators. Providing technical assistance to partner work groups and maintaining inter‑departmental relations. Communicating with users and publishing status of system outages as needed. Proactively notifying customers about significant infrastructure delays that could impact business operations. Managing information assurance vulnerability alerts (IAVAs) and performing system security scans in accordance with System Security Plans. Initiating IAVA responses, completing remediation, and applying security updates to IT and network systems. Contributing to documentation for incident resolution and maintaining accurate records. Supporting IT enhancements and undertaking project work as required. Required Qualifications BS with 4‑8 years of experience or Masters with 2‑6 years; experience may substitute for a degree. Experience with complex IT equipment (e.g., network switches, routers, LANs, cabling, Windows/Linux, VMware). Knowledge of data center design and configuration (rack, power, placement). Familiarity with IT system optimization, monitoring and troubleshooting. Documentation of technical processes. Hands‑on IT customer service experience. Clear, concise communication and detailed status reporting. Adherence to best practices, maintenance windows and change control procedures. Strong analytic abilities and meticulous work ethic. Independent thinker capable of working alone and within a team. Availability for on‑call support during off‑hours as needed. Ability to travel up to 10% of the time. Willingness to report to the Annapolis Junction, MD office at least once per month. Clearance required: TS/SCI with Polygraph. Preferred Qualifications Experience with security standards, software architectures or network security technologies (PKI, SSP, vulnerability assessment). Support experience in a software configuration management and development environment. Experience working in an Agile environment. Pay Range Pay Range $87,100.00 – $157,450.00. The Leidos pay range for this job level is a guideline only and does not guarantee compensation. Additional factors such as responsibilities, education, experience, and market data may influence a final offer. Benefits Paid Time Off and 11 paid holidays 401(k) with 6% company match and immediate vesting Flexible schedules and discounted stock purchase plan Technical upskilling and education/training support Parental paid leave Health and wellness programs, income protection, paid leave and retirement benefits EEO Commitment All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity, veteran or military status, or any other basis prohibited by law. Leidos will also consider qualified applicants with consistent criminal histories under relevant laws. #J-18808-Ljbffr Leidos
$1,500 - $3,000 per month
...goals with flexibility. Tulzi offers secure network systems and software engineering solutions in both the public... ...development life cycle. Clearance Required: TS/SCI with poly Title: System Administrator III Location: Annapolis Junction, MD System...SuggestedHourly payTemporary workLocal area- ...Amentum is seeking a System Administrator 2 to provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution... ...Windows and Linux as an end user Clearance Required: TS/SCI Poly Minimum Education: Bachelor's degree in a technical...SuggestedHourly payContract workLocal area
$1,500 - $3,000 per month
...personal and family goals with flexibility. We offer secure network systems and software engineering solutions in both the public and... ...cycle. Clearance and Position Details Clearance Required: TS/SCI with poly Title: Lustre Engineer- Software Integration Engineer IV...SuggestedHourly payFull timeTemporary workLocal area- Job Title & Location System Administrator II - TS/SCI w/poly clearance | Annapolis Junction, MD Overview CyberTrend’s leadership has 40 years of experience in the industry, and the company continues to serve as a technology leader on many defense projects and programs....SuggestedFull timeFor contractorsLocal area
$119k - $161k
...Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be... ...Yes Job Description: Cloud System Administrator Own the opportunity as a Cloud System... ...skills • Security Clearance Level: TS/SCI w/Poly • Required Skills and Abilities: Strong...SuggestedTemporary workImmediate startRemote workWorldwideFlexible hours$25k
SYSTEM ADMINISTRATOR -Linux/MongoDB/AWS- 10 yrs of Experience - TS/SCI w/Poly clearance is required Job Description System Administrator -Linux/MongoDB/AWS - 10 yrs of Experience - TS/SCI w/Poly Required Provides support for implementation, troubleshooting and maintenance...Contract workTemporary workRemote workShift work- Amentum is seeking a System Administrator 2 to provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution... ...of Windows and Linux as an end user Clearance Required: TS/SCI Poly Minimum Education: Bachelor’s degree in a technical...Hourly payFull timeContract workLocal area
- ...Power 3 Solutions and it's partners are looking to hire a System Administrator Level 2 for a great opportunity in the Annapolis Junction area. A current and active TS/SCI Clearance with a Maryland Polygraph is required. No CCA's will be accepted at this time....Local area
$25k
SYSTEM ENGINEER - Linux/Scripting/Red Hat - 20+ yrs of Experience - TS/SCI w/Poly clearance is required - ID Posted On 05/13/2026 Job Information Technology Work Experience... ...Linux CLI Experience performing System Administration including installation, configuration, and...Contract workTemporary workWork experience placementRemote workShift work$125k - $145k
A specialized technology firm in Annapolis Junction, MD is seeking a System Administrator with an active TS/SCI w/ Poly to ensure effective operational support for their IT and monitoring systems. The ideal candidate will manage enterprise tools and perform critical upgrades...$39.11 - $52.9 per hour
...Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be... ...No Job Description: Account Systems Administrator Transform technology into opportunity... ...Entry • Security Clearance Level: TS/SCI w/Poly • Preferred Skills: Ticketing System...Hourly payTemporary workWork at officeImmediate startRemote workWorldwideMonday to FridayFlexible hoursShift work$119.5k - $275k
...Description HPE is seeking a passionate and skilled Linux Systems Administrator to provide system management, daily monitoring and... ...enablement of HPE’s computing solution. Security Clearance TS/SCI With Full Scope Poly Clearance REQUIRED Citizenship US citizenship is...Full timeWork experience placementWork at office- ...Front Line Engineer to support the NSA. The ideal candidate will have extensive experience in system administration and LAN management, along with an active TS/SCI Full Scope Poly clearance. Responsibilities include configuring system software, providing technical support...Shift workNight shift
$107.74k - $138k
...Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able... ...Yes Job Description: Restore System Administrator Transform technology into opportunity... ...& Certifications: Active TS/SCI with Polygraph. Must be 8570 compliant...Temporary workWork at officeImmediate startRemote workWorldwideFlexible hoursShift work$87.1k - $157.45k
...Leidos has a new and exciting opportunity for a System Administrator in our Intel Sector's Cyber & Analytics Business Area (CABA) . Our... ...at least once per month. ~ Clearance Required: Must have TS/SCI with Polygraph. Preferred Qualifications: Experience...Work at officeLocal areaImmediate startRemote workFlexible hours- Account Systems Administrator Transform technology into opportunity as a Account Systems Administrator with GDIT. A career in enterprise IT... ..., Word, Excel), DataEntry Security Clearance Level: TS/SCI w/Poly Preferred Skills: Ticketing System, Active Directory, Customer...Work at officeMonday to FridayShift work
$25k
TEST ENGINEER - Linux/Scripting/Splunk- 5 + yrs of Experience - TS/SCI w/Poly clearance is required- HPC Posted On 05/15/2026 Job... ...requirements. Capabilities Independently test and validate HPC systems in accordance with test plans to ensure that system requirements...Contract workTemporary workWork experience placementRemote workShift work- A technology-focused defense contractor in Annapolis Junction, MD is seeking a System Administrator II with TS/SCI clearance. This role encompasses responsibility for implementation, troubleshooting, and maintenance of IT systems, including providing essential Tier 1 and...For contractors
- HRB is looking for a System Administrator III located in Annapolis Junction, MD. The role requires TS/SCI clearance and involves managing IT systems, providing day-to-day support, and optimizing system performance. Ideal candidates will have ten years of experience in...
- Stanley Reid & Company is seeking a System Administrator for a role based at Ft. Meade, Maryland. Ideal candidates will have a Bachelor's Degree... ...over 5 years of relevant experience. The position demands a TS/SCI clearance with a Full-Scope Polygraph. The company offers a...Hourly pay
- Job Title Restore System Administrator Job Type Regular Clearance Must currently possess: Top Secret SCI + Polygraph Must be able to obtain: Top Secret SCI + Polygraph Public... ...support skills Security clearance level: TS/SCI with Polygraph Shift: Tuesday-Saturday...Remote workShift work
- Virtualization Systems Administrator Your impact: Own your opportunity to support national defense. Your work will help keep critical operations... ...requirements (e.g., Security+ CE, etc.) Clearance: Active TS/SCI clearance with a favorable polygraph Hands‑on experience...
- Basic Qualifications Bachelor’s degree in System Engineering, Computer Science,... ...in planning and leading Systems Active TS/SCI security clearance with current polygraph... ...Skills Bonus The Systems Engineer -Splunk Administrator will support a critical mission of consequence...For contractors
$147.29k - $199.28k
...Currently Possess: Top Secret SCI + Polygraph Clearance Level... ...), Windows Desktop Operating Systems Certifications: None... ...& DEPLOYMENT SYSTEMS ADMINISTRATOR YOUR IMPACT Own your... ..., etc.) CLEARANCE: Active TS/SCI clearance with a favorable...Temporary workImmediate startRemote workWorldwideFlexible hours$119k - $161k
...Currently Possess: Top Secret SCI + Polygraph Clearance... ...: ACTIVE DIRECTORY SYSTEMS ENGINEER Designs and defines... ...policy architecture and administration • Analytical and creative... ...• Security clearance level: TS/SCI w/Poly • US citizenship required...Temporary workImmediate startRemote workWorldwideFlexible hours$170k - $230k
...Currently Possess: Top Secret SCI + Polygraph Clearance Level... ...: Skills: Linux, System Improvements, System... ...Job Description: SYSTEMS ADMINISTRATOR SME - LINUX Grow your impact... ...operating systems • Active TS/SCI with polygraph • US citizenship...Long term contractContract workTemporary workImmediate startRemote workWork from homeWorldwideFlexible hours$100k - $140k
...Description A day in the life: We are looking for a Linux System Administrator to join a mission critical software development effort that... ...on an ad hoc basis. An active US Government TS/SCI security clearance with Polygraph Bonus Skills Experience...Summer holidayImmediate start$25k
SOFTWARE ENGINEER - Kubernetes/Linux- 5+ yrs of Experience - TS/SCI w/Poly clearance is required - ID Posted On 05/15/2026 Job Information... ...who will be responsible for collaborating with Product Owners, System Engineers, and Project Software Engineers to design, develop,...Contract workTemporary workWork experience placementRemote workShift work$147.29k - $199.28k
...Currently Possess: Top Secret SCI + Polygraph Clearance Level... ...: Skills: Critical Systems, Enterprise IT, Enterprise Monitoring, System Administration, System Monitors Certifications... ...CE, etc.) CLEARANCE: Active TS/SCI clearance with a favorable polygraph...Temporary workImmediate startRemote workWorldwideFlexible hours$106k - $168k
DCCA is seeking a Systems Administrator 2 with an active TS/SCI security clearance to provide support to the Software Team. The ideal candidate will have at least ten years of system administration experience and a Bachelor’s Degree in a related technical field. The position...
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