Systems Administrator
Gilder Search Group
Mid/Sr System Administrator - Senior Level preferred Open Systems Technologies Corporation is looking for a Systems Administrator to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a highly complex and fast-paced program. The selected candidate will be responsible for performing daily system administration and O&M support activities in support of a complex network environment with geographically distributed systems. The position entails the daily sustainment of existing computing and network systems at various locations, with a particular focus on the set-up and maintenance of an off-site location. 8/12/26: There are 3 immediate vacancies right now! i.e. 3 new candidates will be able to start immediately after their security processing is complete. Mid/Senior Sys Admin - must be cleared with the MD Customer, must have FS poly, last poly must be within last 6 years Job Summary The selected individual will provide system administration support for a large, complex network environment with geographically distributed systems. The role supports system engineering requests by delivering solutions that meet operational needs, and by upgrading, sustaining, and maintaining existing capabilities. The candidate must be comfortable working in a fast-paced environment that includes multiple air-gapped systems, each with its own domain and supporting infrastructure. The position also requires maintaining a complex IT environment involving multiple users, as well as associated storage and network infrastructure. This role requires an energetic, focused, and driven individual who can adapt quickly to changing priorities. The candidate must demonstrate strong system administration and troubleshooting skills and work effectively with the team to execute a variety of network-centric system administration tasks. Responsibilities Include The selected individual will be responsible for installing applications, administrating systems and processes, and ensuring issues are identified and resolved in a timely manner. She/he will be responsible for ensuring server and desktop configurations are optimized and running continuously and efficiently. The selected individual will also perform security management and application performance optimization functions. Additional responsibilities may include: Administration/sustainment of a system that provides a web-based application for storing, sharing, and distributing information. Creating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations. Identifying and correcting hardware and software issues. Responding to system administration, operations, and maintenance problems, and developing rework solutions. Creating and maintaining documentation of complex server/network environments to ensure that clear, concise and accurate information is readily available for incident resolution. Communicating with users and external support personnel regarding system outages and upgrades, and conferring with upper management regarding recommended resolution options. Basic Qualifications Bachelor's Degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least 8 years of relevant experience. Additional experience may be substituted for a degree. Must have experience as a systems administrator providing direct support to end users and technical staff (developers, testers, engineers, etc.). Must be proficient with Windows Server 2019 and Active Directory. Must have experience with software/hardware deployment, patches, operating systems, and basic system backup and restore functions. Must have experience with/be familiar with SALT, Ansible, Splunk, Puppet, SolarWinds, Nessus. Must have experience with and/or have knowledge of Red Hat and VMWare. Must have a solid understanding of advanced security protocols and standards. Must have experience with both Client and Server virtualization environments. Must have experience with installation, configuration, troubleshooting, and reimaging hardware. Must have a solid understanding of information security principles and practices. Must be able to lift up to 50 lbs. Must be able to support occasional day or short duration travel. Preferred Qualifications Proficiency with SQL Server. SALT and Python scripting experience. Experience supporting a software configuration management and development environment. Experience working in an Agile Development Environment or on an Agile Team. Knowledge of PKI systems which use HSMs to validate key and NTP for synchronization. Knowledge of PowerShell and PowerCLI. Experience in documenting and providing information for security accreditation and certification.
BENEFITS
Our company OST has been operating since 1996 and have various contracts with Government agencies. We offer a comprehensive benefit package that includes 3 weeks paid time off, 2 weeks Holiday pay, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end of year profit sharing paid out in 401k. #J-18808-Ljbffr Gilder Search Group- ...defined problem space. We bring Public and Private, Civilian and Military expertise to every case. We are hiring a Cloud Systems Administrator to work in Annapolis Junction, MD . Position location is subject to change based on central MD client's needs....SuggestedLocal areaRemote workWork from homeFlexible hours
$100k - $200k
...Mid/Sr System Administrator (TS/SCI Clearance with Full Scope Polygraph Required) Annapolis, United States | Posted on 09/18/2026 Clearance Requirement: Active TS/SCI with Polygraph Salary Range: $100,000 – $200,000 / year (dependent on experience, education,...SuggestedLocal area- ...Zohorecruit is hiring a Mid/Sr System Administrator in Annapolis, MD to support a distributed network across air-gapped enclaves. The role emphasizes security compliance, patching, and incident response for Windows and Linux systems. You will manage Active Directory...Suggested
$135k - $216k
ResponsibilitiesManages team that provides technical assistance to computer system and network users. May also have oversight for a data center. Provides 24/5 technical support for computers and associated networks. Implements policies and procedures regarding how problems...SuggestedContract workShift work- System Administrator LOCATION Annapolis Junction, MD 20701 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a proactive and detail-oriented System Administrator to join our team and help maintain the stability...SuggestedTemporary workFor contractorsImmediate startFlexible hours
- ...years of IT experience, including Windows and Linux Network Administration experience + a BS (or 15+ years of experience without a degree... ...spanning five key disciplines: Network Management Information Systems Security Engineering Requirements: ACTIVE TS/SCI with full...
- Member of a cross-functional team providing Windows systems administration/engineering expertise and guidance for a critical enterprise-wide messaging system used in the Information Transport Service (ITS) program. Responsible for platform hosting and performance providing...Local area
- System AdministratorVetegrity is looking for System Administrators with 10+ years of experience. This position also requires a TS/SCI with a Full Scope Polygraph. See additional required skills belowJob Duties:- Provide support for implementation, troubleshooting and maintenance...Temporary workLocal area
$110k - $130k
...customers and licenses DF and geolocation solutions to multiple OEMs. Position Summary We are seeking an experienced Classified Systems Administrator to support, maintain, and secure our mission-critical, high-consequence classified IT infrastructure. In this role, you will...Full timeTemporary workWork at officeMonday to FridayFlexible hoursShift work$116k - $124k
...Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Mid-Level System Administrator to join our intel team. The SA2 will provice support for implementation, troubleshooting and maintenance of Information...Contract workWork experience placementFlexible hours$202.3k - $273.7k
...Programming Language) Certifications: None Experience: 15 + years of related experience US Citizenship Required: Yes Job Description: SYSTEMS ADMINISTRATOR Advance how our customers operate while you advance your career. Join GDIT as a Systems Administrator and build an impactful...Temporary workImmediate startRemote workWorldwideFlexible hours$10k
Description Columbia Technology Partners is seeking a System Administrator 3 to support the implementation, maintenance, and optimization of IT systems across complex enterprise environments. This role focuses on sustaining mission-critical infrastructure, leading advanced...Temporary workFor contractorsLocal area$69.6k - $142.7k
Job Title: Systems Administrator II Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local The Opportunity Provide frontline IT support and...Full timeContract workFor contractorsWork experience placementLocal areaRemote workFlexible hours$140k - $170k
...significant impact by supporting critical national security infrastructure? T-Rex Solutions is looking for a fully cleared System Administrator 2 to join our dynamic team in Annapolis Junction in support of the Intelligence Community. Provides support for implementation...Work experience placementImmediate start- ...support solutions to the Intelligence Community. We are seeking a motivated, career-oriented, and customer-focused Senior Systems Administrator to join our team at Annapolis Junction, Maryland. PRIMARY RESPONSIBILITIES Provide support for implementation, troubleshooting...Immediate start
- Description Athenix Solutions Group is looking for a System Administrators a variety of roles to maintain and provide technical support for diverse software and hardware systems assisting in the defense of our nation. We have roles for SAs to work individually or as part...Remote work
- ...We appreciate the individuality of the people around us. * This position can be either W2 Contract or FTE JOB SUMMARY: The System Administrator III provides advanced system administration, maintenance, and support for government clients within Trace3’s Federal, State,...Contract workLive inWork at officeLocal areaFlexible hours
$65 - $100.96 per hour
...and solutions, we strengthen defenses and control environments to preserve continuity and ensure mission success. Job Title Systems Administrator Commitment To Non-Discrimination All qualified applicants will receive consideration for employment without regard to...Hourly payContract workLocal area$99k - $225k
...and work. Innovate with intention Build mission-ready tech that protects the nation. Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. We’re looking for a system administrator with customer...Full timeContract workPart timeWork at officeLocal areaRemote work- *This position is contingent upon contract award Markesman Group is seeking System Administrator to join our team at Annapolis Junction, Maryland. This role in a high-stakes CYBER organization demands a TS/SCI clearance with FS Poly and strong systems management and cybersecurity...Contract workLocal area
$10k
...experience that is rare within our industry. Responsibilities Provide support for implementation, troubleshooting and maintenance of IT systems Manage the daily activities of configuration and operation of IT systems Provide Tier 1 (Help Desk) problem identification,...Hourly payFull timeContract workTemporary workWork experience placementSummer workImmediate start$150k - $175k
Worker Type Regular Job Description Job Summary The primary role of the System Administrator is to manage and support mission-critical IT infrastructure. This role involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems. You’ll...Permanent employmentContract work- ...unable to sponsor an employment Visa. What You’ll Be Doing (We don't love the bullet points, but we love the work!) As the System Administrator, you'll get to be responsible for providing network management and systems administration support to maintain the Agency’s High...Visa sponsorshipWork visa
$75k - $150k
...employee-owned and proudly ranked among Virginia’s Best Places to Work year after year! We are looking for an enterprising System Administrator to develop and implement Windows- and Linux-based engineering solutions within a government software hosting facility. This...Full timeContract workTemporary workCasual workFlexible hours$2,500 per month
Prodigy One, LLC. is a systems and software engineering services firm providing more than 45 years of service to state and federal customers... ...selections. Job Description: We are seeking for an System administrator 2 who will provides support for implementation,...Immediate start$140k - $180k
...modernization, and transformation of more than 100 enterprise business systems that enable tens of thousands of government personnel,... ...Bonus for Qualified Candidates! We are seeking a System Administrator for one of our PRIME CONTRACTS supporting mission-criticalenterprise...Contract workWork at officeWorldwideMonday to FridayFlexible hoursNight shift- Respond to user inquiries via phone, email, chat, or ticketing systems. Log and track support requests using help desk ticketing system. Diagnose and resolve basic technical issues related to hardware, software, and network connectivity. Provide step-by-step guidance to...TraineeshipAfternoon shift
- AWS cloud resources, including EC2, S3, VPC, IAM, and other core services. SaltStack, Ansible, Bash and Python Windows Server 2019 and 2022 environments, Linux distributions (e.g., RHEL8/9, Amazon Linux 2023) within AWS. Fifteen (15) years’ experience as a SA in programs...
- Overview Position Title: Systems Administrator Location: Annapolis Junction, MD Reports To: Program Manager / Team Lead Job Type: Full-time Clearance Requirement: Active TS/SCI with Polygraph Summary Drive automation and modernization to truly impact mission success...Full timeContract workFor contractorsWork at officeLocal areaImmediate startFlexible hours
$240k - $265k
...on bringing innovative solutions to the difficult mission problems facing our customers. Description We are seeking a System Administrator who shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software...Hourly payExtra incomeTemporary workImmediate startFlexible hours
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