Senior System Administrator 702
$190k - $240kFreedom Technology Solutions Group, LLC
Join Our Mission-Focused Team — This Position Is Eligible for a $25,000 Welcome Bonus for Qualified Candidates! We are seeking a Senior System Administrator to join one of our Prime Contracts supporting the Government's Corporate Management Services (CMS) organization. In this role, you will help design, modernize, secure, and sustain the enterprise applications and platforms that keep the organization operating every day. Working alongside experts in software engineering, cloud computing, DevSecOps, systems engineering, user experience, and enterprise platforms, you'll help modernize legacy systems, automate business processes, integrate commercial technologies, and deliver innovative solutions that improve efficiency, reduce costs, and enhance the user experience. If you're looking for an opportunity where your work has broad enterprise impact, you'll find it here. Our diverse and growing team offers the chance to solve complex technical challenges, collaborate with talented professionals, and directly contribute to the technology and services that enable the Government's mission around the world. Primary Responsibilities Perform IAVA patching and reporting across enterprise systems. Maintain and administer Windows Server (various versions) and Linux server environments in a hybrid infrastructure. Provide troubleshooting, maintenance, and operational support for IT systems, including both on-premise and cloud-hosted environments. Execute patching, software maintenance, and upgrades for Linux and Windows systems. Implement and manage Windows Group Policy Objects (GPOs) and perform PowerShell scripting for automation and administrative tasks. Utilize AWS services, including EC2, Lambda functions, CloudFormation, and Cloud-native scripting to automate deployments and manage cloud infrastructure. Support infrastructure as code initiatives using Ansible and Terraform for automation, configuration management, and provisioning. Develop and maintain system scripts and automation tools to streamline operations and improve system reliability. Required Qualifications Fifteen (15) years of experience as an SA in programs and contracts of similar scope, type, and complexity is required. Bachelor's degree in a technical discipline from an accredited college or university is required. Five (5) years of additional SA experience may be substituted for a bachelor's degree. DoD 8570 compliance with Information Assurance Technical (IAT) Level I is required as specified in the individual TTOs Proficiency with maintaining various versions of Windows Server including hardening, patching, upgrading and disk management. Linux server experience including patching and software maintenance. Experience with IAVA patching and reporting Experience in maintaining and upgrades various types of installed software Skilled in problem solving and troubleshooting of computer systems and software Must be able to work during core hours of M-F 10am-2pm. Exceptions will be considered on a case‑by‑case basis Desired Qualifications D 8570 compliance with Information Assurance Technical (IAT) Level I Experience with PowerShell scripting language Technology stack of applications with which this role will interact Linux Windows Ansible Terraform AWS (EC2, Lamda functions, Cloud formation, Cloud native-scripting) PHP .NET C# Microsoft SQL Server Oracle The estimated salary range for this position is between $190,000-$240,000 (annualized USD). This range reflects the typical pay for the role and is one part of the company's comprehensive compensation package. Actual salaries are influenced by several factors, such as location, the individual's education, skills, experience, and competencies, as well as contract affordability and organizational needs. What’s in It for You? Flexible work environment A team mentality – work with friendly, like-minded professionals Work with innovative, cutting edge technologies Enjoy Extremely Competitive Compensation And Benefits A work-life balance you can count on Opportunities to grow and advance your career on our dime Amazing benefits including matching 401k, fully paid medical, and more Generous paid time off – including paid site closure days Competitive salary offerings Paid training and tuition reimbursement Referral bonuses Fully paid life and disability Annual logo wear allowance Company sponsored events (game nights, holiday party, summer party, happy hours) As an Equal Opportunity Employer, we do not discriminate on the basis of race, color, religion, sex, age, marital status, disability or veteran status Applicant Federal & E-Verify Postings VEVRAA Federal Contractor If you want to view the EEO Law poster, please choose your language: English - Spanish - Arabic - Chinese If you want to view the EEO Law Supplement poster, please choose your language: English - Spanish - Chinese If you want to view the Pay Transparency Policy Statement, please click the link: English Accessibility: If you need an accommodation as part of the employment process, please contact Human Resources at Phone: View phone number on click.appcast.io Email: View email address on click.appcast.io Equal Opportunity Employer, including disabled and veterans. #J-18808-Ljbffr Freedom Technology Solutions Group, LLC
- ...person mixed Contractor/Civilian SA team supporting 3rd party systems. • All supported systems are Linux hard boxes or VM's. •... ...and home directories. Required Skills: • LINUX Administration • Solid experience with STE/STN, DISA STIG compliance work...SeniorFor contractors
$168k - $250k
...information theft and augment protections for our customers systems. If you are looking to join a company that provides... ...consider joining our team! Peterson is seeking a talented Senior Systems Administrator . Provides day to day systems administration and support...Senior$96.2k - $192.3k
Accenture Federal Services in Annapolis Junction, MD is looking for an experienced Systems Administrator. The ideal candidate will provide support for IT systems, manage infrastructure, and troubleshoot issues. A minimum of ten years of experience in similar roles as well...Senior- Prodigy One, LLC. is seeking a System Administrator to support a large, complex network environment with distributed systems. The role involves installing applications, maintaining server configurations, and ensuring security posture across air‑gapped environments. Strong...Senior
- Metrea in the United States is seeking a Classified Systems Administrator to secure and maintain air-gapped IT infrastructure used by the IC and DoD. You will lead a mixed Linux/Windows environment with a strong ownership mentality. Responsibilities cover security hardening...Senior
- Constellation Technologies, Inc. is seeking a seasoned Systems Administrator in Maryland to support federal contract requirements. You will manage Windows Server 2019, Active Directory, virtualization and security best practices while collaborating with developers, testers...SeniorContract work
- Belay Technologies, Inc. is seeking a System Administrator to join our intel team in Maryland. The role provides system administration support for a large, complex, distributed network, with air-gapped environments and multiple domains. The candidate will work in a fast...Senior
- Columbia Technology Partners is seeking System Administrators to support the implementation, maintenance, troubleshooting, and optimization of mission-critical IT systems and infrastructure. The ideal candidate will provide operational support across servers, storage, networks...Senior
- CTI MD in Maryland seeks an experienced Systems Administrator to support federal contract requirements. You will maintain Windows Server and Active Directory, manage virtualization, and work with SALT, Ansible, Splunk, Puppet, and Nessus in a secure environment. The position...SeniorContract work
- General Dynamics Information Technology is seeking a Systems Specialist to support, maintain, and improve IT infrastructure. You will focus on system administration, troubleshooting, and user support to keep servers, apps, and security measures performing at peak levels...Senior
$170k - $175k
A leading technology consulting firm is seeking a Senior System Administrator with an active TS/SCI clearance and polygraph. The role involves implementing and maintaining IT systems, providing Tier 1 and Tier 2 support, and managing daily operations across various environments...Senior- Innovative Systems & Solutions in Annapolis Junction, MD is seeking a Senior System Administrator to support DoD IT infrastructure. The role requires TS/SCI clearance with polygraph and 10+ years of SA experience, managing UNIX and Windows environments. You will provide...Senior
- J&T in Annapolis Junction, MD seeks a Mid/Sr System Administrator to support a large distributed network. You will deploy, patch, and optimize air-gapped server and desktop environments, drive security compliance, and troubleshoot complex hardware/software issues to maximize...Senior
- J&T Business Consulting seeks a Mid/Sr System Administrator to support a large, distributed network in Annapolis, MD. You will manage Windows and Linux environments across air-gapped enclaves, deploying patches, ensuring security, and maintaining uptime while coordinating...Senior
- Innovative Systems & Solutions (ISSI) is seeking a Senior System Administrator (TS/SCI with Polygraph) in Annapolis Junction, Maryland. The role focuses on implementing, troubleshooting, and maintaining IT systems across client, server, storage, and network environments...Senior
- Innovative Systems & Solutions in Annapolis Junction, MD, is seeking a Senior System Administrator to support IT systems across client/server/storage/network environments for DoD and Federal customers. The role includes handling Tier 1/2 support, system maintenance, and...Senior
- Cornerstone Defense is seeking a Senior System Administrator to support secure enclave development networks in Annapolis Junction, MD. The role focuses on maintaining operability, implementing SOPs, and enforcing security baselines across Windows and Linux servers with...Senior
- General Dynamics Information Technology (GDIT) is seeking an Active Directory Systems Administrator to manage enterprise virtualization and secure compute environments onsite in Maryland. The role focuses on Windows/Linux server administration, vCenter operations, patching...Senior
- Power3 is looking for a System Administrator III in Annapolis Junction, MD. The candidate will provide support for implementation, troubleshooting, and maintenance of IT systems while managing system infrastructure. Responsibilities include Tier 1 and Tier 2 problem resolution...Senior
- BCT LLC is seeking a System Administrator III to support a large-scale Linux environment. The role requires an active TS/SCI with POLY and entails installation, operation, monitoring, and performance optimization of compute, network, memory, and storage components. Responsibilities...Senior
- Erias Ventures, LLC seeks engineers to support IT systems, troubleshoot, and maintain infrastructure across UNIX/Windows servers and storage environments. The role emphasizes secure, scalable IT operations and proactive problem-solving in a growth-oriented company. The...Senior
- ...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...SeniorVisa sponsorshipWork visa
- Innovative Systems & Solutions | Full time - Onsite Senior System Administrator - FFNN-8807 Annapolis Junction, United States | Posted on 03/17/2026 Innovative Systems & Solutions (ISS) works with a wide spectrum of talent to establish an atmosphere that stimulates creativity...SeniorFull timeTemporary workLocal areaImmediate start
$115k - $175k
...of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer-oriented Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is an onsite position. Primary Responsibilities Provides support...SeniorHourly payContract workWork experience placement$146k - $234k
Responsibilities Mid-level Network / Desktop Administrator to support and maintain enterprise network and end-user computing infrastructure... ...and remediate vulnerabilities in response to IAVAs, ensuring systems remain compliant with security baselines and STIGs. Use CLI and...SeniorContract workRemote workShift work$103.8k - $218.1k
## Senior System AdministratorHanover, MD, USApply NowFind out how well you match with this jobJob ID328668Job Title: Senior System AdministratorJob... ...used across the IC.**Responsibilities:**As a System Administrator, you will:* Build, configure, and deploy Docker containers...SeniorContract workFor contractorsWork experience placementFlexible hours$137k - $169k
...RESPONSIBILITIES Monitors and manages system resources, including CPU usage, disk usage... ...efficiency. Performs system security administration functions, including creating user profiles... .... Overview We are seeking a Senior Systems Administrator to join our Task Order...SeniorFull timeContract workTemporary workLocal areaShift work$235k - $270k
Annapolis Junction, MD Description Provides support for implementation, troubleshooting, and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and related processes. Provides support to IT systems including day‑to‑day operations, monitoring...SeniorHourly payTemporary workImmediate startFlexible hours$170k - $250k
Job Description The System Administrator III is a senior technical contributor responsible for designing, implementing, securing, and maintaining the organization’s core IT infrastructure. This role provides Tier 3 support for complex incidents, leads infrastructure projects...SeniorPermanent employmentContract workWork experience placementLocal area$114k - $164k
...has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies seeks a Mid-Level or Senior Level System Administrator (SA) to join our intel team. The selected individual will provide system administration support for a large, complex network...SeniorContract workWork experience placementFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior System Administrator 702. Be the first to apply!
- microsoft systems administrator Annapolis, MD
- remote systems administrator Annapolis, MD
- junior systems administrator Annapolis, MD
- application system administrator Annapolis, MD
- IT administrator Annapolis, MD
- systems administrator Annapolis, MD
- computer systems administrator Annapolis, MD
- enterprise administrator Annapolis, MD
- system admin Annapolis, MD
- hpc system administrator Annapolis, MD

