Senior Systems Administrator III - TS/SCI On-Site Leader
A&M Technologies, Inc.
A&M Technologies, Inc. in Suitland, MD is seeking a Senior Systems Administrator III to join the O&M team, supporting a high-availability federal environment. The role requires TS/SCI clearance, DoD 8140/8570 certification, and extensive experience with Windows, RHEL, VMware, storage, and disaster recovery; you will lead troubleshooting, mentor staff, and contribute to modernization. On-site, with strong emphasis on documentation, compliance, and after-hours support. #J-18808-Ljbffr A&M Technologies, Inc.
$10k
...Systems Administrator III (Senior) Location: Suitland, MD (On-Site) Clearance: Active Top Secret/SCI w/ CI Poly (Required) Certification: DoD 8140/8570 Compliant (Security+ CE or qualifying certification required) Employment Type: Full-Time Position Summary...SeniorWebsiteFull timeContract workTemporary workImmediate startFlexible hours- ...threats. Job Description Systems Administrator Maintains an organization'... ...that holds an active TS/SCI eligible clearance for a position... ...support to the infrastructure on site, this position will be a... ...include: Provide Tier I, II, and III system administration support...SeniorWebsiteWork at officeLocal areaRemote work
- RedTrace Technologies is seeking a Program Security Representative III to support SAP/SCI programs at the Pentagon, VA, on-site. The role requires TS SCI clearance and US citizenship, with responsibilities spanning policy, training, and day-to-day security operations....SeniorWebsite
$104.2k - $138.9k
...initiatives, including AI implementation! This is a hybrid role working on-site 3 days/week in Arlington VA area. Candidates must have a current TS/SCI clearance.The Senior System Administrator leads the administration, maintenance, security, and operational resilience...SeniorWebsiteRemote work3 days per week- Peraton is seeking a poly cleared Senior Infrastructure and Systems Administrator to support a government customer in Maryland... .... The position is full‑time, on‑site near College Park, MD, requiring US citizenship and an active TS/SCI with polygraph. #J-18808-Ljbffr PeratonSeniorWebsiteFull time
- ...Transform technology into opportunity a Network Computer Systems Administrator with GDIT. A career in enterprise IT means... .... ~ Security Clearance Level: Active TS/SCI with Polygraph ~ Location: 100% On-Site required ~ Strong knowledge of OSPF, RIP, and...SeniorWebsiteRemote work
$125k - $200k
Summary The MIL Corporation is seeking a Senior Network Engineer with TS/SCI, FS (Network Engineering, Associate)... ...currently requires a full on-site schedule. Schedule is subject to change... ...following minimum duties:Assisting the System AdministratorsAssisting the Lead Network...SeniorWebsiteFull timeContract work$124.09k - $161k
...Possess: Top Secret/SCI Clearance Level Must... ...Networking Hardware, Network Systems Certifications:... ...Computer Systems Administrator with GDIT. A career in... ...Clearance Level: Active TS/SCI with Polygraph ~ Location: 100% On-Site required ~ Strong...SeniorWebsiteFull timeTemporary workPart timeImmediate startRemote workWorldwideFlexible hours- Blue Sky Innovators is seeking a Part-Time Senior Engineer/Scientist to work on site in Arlington, VA. This role, which represents 25% of a full-time effort... ...years of experience in defense-related technologies. A TS/SCI clearance is required, and local travel will be...SeniorWebsiteFull timePart timeLocal area
- ...infrastructure, scripts, and tooling in GitLab. Qualifications include 5+ years in red team/security, BA/BS or equivalent, and IAT II/III certs. Expect on-site duties with TS/SCI clearance requirements and a strong emphasis on security #J-18808-Ljbffr OneZero SolutionsSeniorWebsite
- ...position working on-site at the U.S. Naval... ..., and mobile systems connected to local... ...local-area system administration functions. Support... ...Experience Level: Level III, with senior-level experience... ...clearance with SCI eligibility. Personnel... ...able to maintain TS/SCI access...WebsiteFor subcontractorLocal area
$73.45k - $132.78k
...exciting opportunity for a Systems Administrator in our INTEL SECTOR- Cyber &... ...and maintenance of a company site in Alexandria.Primary ResponsibilitiesThe... ...and take direction from senior System Administrators, at... ...Required: Must have TS/SCI with Polygraph.Preferred Qualifications...WebsiteFull timeWork at officeLocal areaImmediate startRemote workFlexible hours$100k - $125k
...provider is seeking an Incident Response Expert III in Arlington, VA. This role involves... ...strong analytical skills and an active TS/SCI clearance. Candidates should have over 8... ...opportunity to work on critical national security missions. #J-18808-Ljbffr Argo Cyber SystemsSeniorWebsite$10k
...Systems Administrator II (Mid-Level) - 3 SLOTS Location: Suitland, MD (On-Site) Clearance: Active Top Secret Clearance (SCI eligibility preferred) Certification: DoD 8140/8570 Compliant (... ...position will work closely with senior engineers to ensure mission systems...WebsiteFull timeContract workTemporary workImmediate startFlexible hours$89.6k - $204k
System Administrator (Entry Level to SME) TS/SCI with Poly REQUIRED Position Description CGI... ...performance under the guidance of senior administrators. CGI... ..., failover, and multi-site redundancy. • Manage... .... You’ll be supported by leaders who care about your health...WebsiteFor contractorsWork at officeLocal areaRelocation- J&T Business Consulting seeks a Systems Administrator in College Park, MD, to support systems with active TS/SCI clearance and a current polygraph. The role requires extensive SA experience across Windows, Linux, Unix, with emphasis on Ubuntu, VM deployment, and security...Senior
- J&T is seeking a skilled IT Administrator to lead SharePoint environments (on-prem and online) and SQL clusters in a secure, growing federal-like environment. The role requires TS/SCI with CI Poly or willingness to complete polygraph, and strong skills in PKI, load balancers...Senior
- ...Business Consulting in College Park, MD, US is seeking a Systems Administrator for a full-time, on-site role. You will maintain and optimize systems and... ...experience, Ansible, NetBox, and SLURM, plus an active TS/SCI clearance. The ideal candidate will have OS expertise...WebsiteFull time
- Apply for Systems Administrator at J&T Business Consulting in College Park, MD, US. This full‑time on‑site position offers great opportunities for career growth. Responsibilities... ...NetBox, and SLURM cluster management. Active TS/SCI security clearance with a current...WebsiteFull time
- A consulting firm for defense solutions is seeking a Systems Engineer III based in Alexandria, VA. You will lead system design and provide technical... ...degree and have at least six years of experience. A current TS/SCI clearance is required, along with various relevant...Senior
- Invictus International Consulting, LLC is seeking a Systems Engineer III in Alexandria, VA. This role demands strong leadership in systems engineering... ...methodologies is essential. The position requires a current TS/SCI clearance and relevant certifications. #J-18808-Ljbffr...Senior
- ...Software seeks a Lead Information System Security Officer (ISSO) to... ...Agency (DIA). This position is on site in the Washington DC, MD, & VA... .... This position requires a TS/SCI + CI Polygraph clearance.... ...DoD 8570/8140 IAM Level II or III ce1iification (e.g., CISSP, CISM...WebsiteFull time
- Kinsley Power Systems is seeking a seasoned Systems Engineer to support DoD-aligned efforts in the NCR region.... ...network design, and AI-enabled modernization with TS/SCI environments. Primary duties are executed on-site in the Fort Washington area with potential VA/NCR travel...SeniorWebsite
- ...Washington, D.C. - Active TS/SCI Clearance with Polygraph Required... ..., D.C.???? Full-Time | On-site | Position Contingent Upon... ...of mission-critical systems. The Cybersecurity Lead is the senior authority on all aspects... ...- DoD 8570/8140 IAT Level III)CASP+ (CompTIA Advanced Security...WebsiteFull time
- The One 23 Group is seeking a Senior System Administrator to provide Tier I/II/III systems administration and IT operations support within classified environments at the Pentagon. This role encompasses responsibilities such as managing server and client operations, performing...SeniorWebsite
- FWI is seeking an Administrative Assistant/Staff Officer in Arlington to... ...staff packages, and provide senior-level administrative support... ...environment. Qualified candidates have TS/SCI clearance with a CI polygraph... ...skills. This on-site role offers Monday-Friday hours...SeniorWebsiteMonday to Friday
- LTC Solutions, LLC is seeking a Senior Naval Logistics Integration (NLI) / Marine Logistics... ...naval logistics integration efforts on-site at the Pentagon in Arlington, VA. This contingent... ..., full-time role requires an active TS/SCI clearance and experience across HQMC,...SeniorWebsiteFull time
- ...Incident Responder (Advanced) to lead a small team of senior and mid‑level analysts. This on‑site role involves hands‑on threat detection, threat intelligence... ...defense for highly secure government enclaves (TS/SCI/SAP). The ideal candidate has TS/SCI clearance, DoD 85...SeniorWebsite
- ...Job Description Job Description Senior Windows Systems Administrator (TS/SCI Required) Location: On‐Site (U.S. Government Facility) Clearance: Active Top Secret Clearance with SCI (TS/SCI) — Mandatory Employment Type: Full‐Time About the Role We’...SeniorWebsiteFull time
- System High Corporation invites qualified professionals to join as an Activity... ...Representative II, supporting SAP, SCI, and collateral activities on-site in Arlington, VA. You will perform day... ...control, and access validation under a TS/SCI framework. Ideal candidates have...SeniorWebsite
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