Mission-Critical System Administrator (TS/SCI Required)
EverWatch
EverWatch is seeking a seasoned System Administrator to support mission-critical networks and modernize our security infrastructure. You’ll manage multi-OS environments, virtualization, and cloud services while driving performance monitoring and incident resolution. The role requires 8+ years in a systems administration capacity, experience with VMware/Hyper‑V, AWS/Azure, and scripting. A TS/SCI clearance with polygraph is required; roles are based in US locations including Annapolis Junction #J-18808-Ljbffr EverWatch
- Open Systems Technologies Corporation (OST) seeks System Administrators for mission-critical operations in Maryland and Utah. Candidates should have strong Linux administration... ...with teams. The ideal candidate has TS/SCI clearance and experience with various Linux...Suggested
$151k - $170k
...for a highly experienced Senior Linux System Administrator / System Engineer to support an important mission environment in Maryland. This role requires expertise in Linux system... ...than 10 years of experience, active TS/SCI with Polygraph certification, and strong...Suggested$81.74 - $91.35 per hour
...solutions company is seeking a Database Administrator in Annapolis. The role involves... ...and security. Candidates should possess TS/SCI clearance, relevant educational qualifications... ...1.35 per hour. Join a team focused on critical mission objectives in a supportive environment...SuggestedHourly pay$150k - $225k
...services firm in Maryland is seeking a Database Administrator to ensure database integrity and security for mission-critical programs. Responsibilities include daily... ...Oracle Database Administrator and hold an active TS/SCI clearance. The role offers a competitive salary...Suggested- ...Manufacturing Co is seeking a Database Administrator to support national defense efforts.... ...optimizing performance, and supporting mission-critical applications. The ideal candidate will... ...significant relevant experience, hold an active TS/SCI clearance, and possess strong skills...Suggested
- Independent Software, Inc. is seeking a System Administrator Level 2 in Maryland to support mission-critical telecommunications systems. You will provide operational monitoring, system administration, and troubleshooting for infrastructure that supports national defense...
- Role, Inc. is looking for System Administrators in Maryland to support mission-critical operations. Candidates should have strong Linux administration skills... ..., and collaboration in dynamic environments, requiring an active TS/SCI with Polygraph clearance. Benefits include 3...
- ...Services (CESI), a By Light company, seeks a Network Operations System Administrator for Fort Meade, MD. This full-time on-site role monitors... ...incident response, and ensures high availability of mission-critical systems 24x7x365 with a weekend shift and two accompanying...Full timeShift workWeekend workWeekday work
- LufCo is seeking a Systems Administrator in Annapolis Junction, MD. This full-time position offers a chance to drive automation for mission success while supporting IT systems and pushing secure access solutions forward. Candidates should have a Bachelor's degree in a...Full time
- ...engineering professionals to explore exciting opportunities at the intersection of talent and technology. With a focus on hiring top-tier, TS/SCI-cleared individuals, this innovative firm offers a diverse range of contract opportunities across multiple domains, including...Contract work
- Peraton is seeking an Enterprise Infrastructure Support Systems Administrator to join their Cyber Mission business unit in Jessup, MD. This full-time role... ..., and work with the team to meet complex user requirements. Enhanced employee benefits, including 25 days of PTO...Full time
- ACTIVE DIRECTORY SYSTEMS ADMINISTRATOR Type of Requisition... ...: Top Secret SCI + Polygraph Clearance... ...Trust/Other Required: None Job Family... ...work will help keep critical operations secure... ...to a mission that protects our... ...CLEARANCE: Active TS/SCI clearance with...Temporary workImmediate startRemote workWorldwideFlexible hours
$147.29k - $199.28k
PKI SYSTEMS ADMINISTRATOR Own your opportunity to support national... ...work will help keep critical operations secure and... ..., contributing to a mission that protects our nation... ...and security requirements Support full lifecycle... ...) CLEARANCE: Active TS/SCI clearance with a favorable...Temporary workFlexible hours- Metrea seeks a Classified Systems Administrator to support, maintain, and secure air‑gapped, mission‑critical IT infrastructure for the IC/DoD. The role requires ownership, multitier support, and hands... ...COMSEC procedures. An active TS/SCI clearance with FS Polygraph is...
- ...Generation Desktop (NGDE) Systems Administrator Own your opportunity... ...work will help keep critical operations secure and... ..., contributing to a mission that protects our... ...principal level. Active TS/SCI clearance with a... ...Workforce certification requirements (e.g., Security+ CE)....Remote work
- Independent Software, Inc. is seeking a System Administrator Level 2 to support mission-critical telecommunications and infrastructure systems in Annapolis, Maryland... ...DoD 8570 IAT Level II certification and an active TS SCI clearance. #J-18808-Ljbffr Independent Software,...
$155k - $213k
DCCA, based in Maryland, is seeking a System Administrator 3 to support its mission-critical operations. The ideal candidate will have an active TS/SCI clearance with Polygraph and extensive experience in IT systems management. This role involves providing support across...$70k - $120k
System Administrator Level 2 (TS/SCI with Polygraph Required) Annapolis Junction, United States | Posted on 07/11/2026 We are seeking a System Administrator... ...operations, and the ability to work in a shift-based mission-critical environment. Key Responsibilities Install,...Contract workMonday to FridayShift workNight shift- ...performance, security incidents, and integration issues. Requirements Active TS/SCI clearance with polygraph eligibility. 3+ years of... ...experience administering Linux and Windows Server systems in a secure, mission‑critical environment. Proficiency with AWS services and...
- CACI International Inc. seeks a Senior System Administrator to support the MWIII Bridge program, delivering enterprise... ...providing after-hours support as needed for mission-critical systems. A TS/SCI with Polygraph clearance is required. #J-18808-Ljbffr CACI International Inc.
- Momentum Engineering, Inc. is seeking a Cloud Systems Administrator to manage and enhance cloud environments leveraging open-source technologies... ...Community operations. Candidates must hold an active Top Secret/SCI clearance and have a Bachelor's degree in a relevant...Hourly pay
- ...for a Network Operations (NetOps) System Administrator located in Fort Meade, MD. The... ...availability, security, and performance of mission-critical systems. The ideal candidate... ...incident response activities. A TS/SCI security clearance is required for this position. #J-18808-...
$135k - $216k
Peraton, located in Maryland, is hiring a PMO Senior Systems Administrator to support mission-critical IT systems. This role involves management of IT infrastructure... ...in modern operating systems, and must hold a TS/SCI clearance. Peraton offers competitive salary ranges...- ...is your opportunity to support mission‑critical systems that make a real difference across... ...Community. Cloud Systems Administrator 2 Annapolis Junction, MD Required Qualifications Bachelor’s degree... ...disciplines will be considered Active TS/SCI clearance with current...
- ENDPOINT MANAGEMENT SYSTEMS ADMINISTRATOR YOUR IMPACT Own your... ...work will help keep critical operations secure and... ...directly contributing to a mission that protects our... ...SUCCEED EXPERIENCE REQUIREMENTS: Email Services Systems... .... CLEARANCE: Active TS/SCI clearance with a...Remote work
- ...experienced Senior Linux System Administrator / System Engineer to... ...a high-visibility mission environment within the... ...Community. This role requires deep expertise in... ...experience and an active TS/SCI with Polygraph.... ..., supporting mission-critical infrastructure, and implementing...
- ...Software, Inc. is seeking a Systems Administrator to support secure... ...in a technical field is required, along with relevant certifications. Active TS SCI clearance is essential. Embrace... ...innovation while contributing to critical national security missions. #J-18808-Ljbffr...
$100k - $140k
...life: We are looking for a Linux System Administrator to join a mission critical software development effort that provides... ...within the Federal Government is required. Bachelors degree in a technical... ...basis. An active US Government TS/SCI security clearance with Polygraph...Summer holidayImmediate start- ...passionate and skilled Linux Systems Administrator to provide system management,... ...and execution, supporting HPE’s mission‑critical customers with pre‑installation... ...of HPE’s computing solution. TS/SCI with Full Scope Poly clearance required. US citizenship required....Full timeWork experience placement
- USER PROFILE MANAGEMENT SYSTEMS ADMINISTRATOR YOUR IMPACT Own your... ...work will help keep critical operations secure and... ..., contributing to a mission that protects our... ...baselines and hardening requirements Identify and remediate... .... CLEARANCE: Active TS/SCI clearance with a...
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