Senior System Administrator
$190k - $240kJobr
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 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 The Benefits You Get with Freedom 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. #J-18808-Ljbffr
$229.5k - $310.5k
...Job Title Systems Administrator SME Responsibilities Provide support for implementation, troubleshooting, and maintenance of IT systems. Manage daily configuration and operation activities of IT systems. Identify, diagnose, and resolve system problems. Assist users in...Senior$115k - $175k
...agility 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$190k - $240k
...Overview 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...SeniorFlexible hours$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- Amentum is seeking a System Administrator 2 in Maryland to provide Tier 1 and Tier 2 support for PKI tools. This role involves troubleshooting, testing new releases, and ensuring compliance with DoD certifications. Ideal candidates should have a background in both Windows...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- IntelliGenesis LLC is seeking a highly experienced System Administrator in the United States Maryland area. The role requires a TS/SCI clearance, a polygraph, and 15 years of SA experience in related programs and contracts. You will support IT systems, dispatch hardware...Senior
- LVMH Group is seeking a Senior Systems Administrator for the Planning and Engineering Department in Maryland. The successful candidate will support the DC network, maintain production systems, and utilize their extensive knowledge in logistics processes. Key responsibilities...Senior
$175k - $205k
Envision Innovative Solutions is hiring a Principal Systems Administrator in Annapolis Junction, Maryland. This role involves supporting IT systems, managing operations, and providing technical assistance to users while ensuring system integrity and optimal performance....Senior$150k - $180k
Amentum is seeking a System Administrator 2 to provide advanced help desk support, focusing on PKI tools. This position requires a minimum of 10 years of experience as a System Administrator and a Bachelor’s degree in a technical field. The role involves troubleshooting...Senior- Fuse Engineering LLC is looking for an experienced IT Support Specialist to provide comprehensive support for IT systems. The role includes troubleshooting, maintenance, and management of system infrastructure while ensuring compliance with security protocols. You will...Senior
$229.5k - $310.5k
Praxis Engineering is seeking a Systems Administrator SME in Maryland to support implementation and maintenance of IT systems. Candidates should have strong experience with Linux and a Bachelor's degree in a technical discipline. This position offers a competitive salary...Senior- ARSIEM Corporation in Annapolis Junction, MD is seeking a System Administrator 2 to support a government client. The role involves hands-on administration of UNIX and Windows systems, incident handling, and Tier 1/2 support across IT infrastructure. Ideal candidates will...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
- A national security technology provider is seeking an experienced systems administrator in Maryland. The role involves implementing and managing research infrastructure systems, performing system administration tasks, and supporting customer operations. Candidates should...Senior
$115k - $175k
Envision Innovative Solutions is looking for a motivated Senior Systems Administrator at Annapolis Junction, Maryland. This role involves managing IT infrastructure, troubleshooting systems, and ensuring the integrity of both UNIX and Windows operating systems. The ideal...Senior$190k - $240k
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...SeniorContract workFor contractorsWork at officeFlexible hoursNight shift- Be a member of a system administration team responsible for the design, deployment, installation, configuration and maintenance of Linux/UNIX-based server systems and software. Be able to learn quickly and work independently as well as collaborate with team and project...Senior
- ...(2) years of demonstrated experience in modern operating systems and network architectures. Information Assurance - Must have... ...attractive bonus plan. Responsibilities We are seeking a Senior System Administrator to provide enterprise-focused engineering support to a...Senior
$100k - $115k
...technical planning, testing, and execution of complex system upgrades, including operating systems,... ...advisories) and ensure timely remediation. Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching...Senior- Senior Systems Administrator Location: On‑Site at Customer Location (Annapolis Junction, MD) Clearance Required: TS/SCI with Poly Are you ready to take your systems administration expertise to the next level and support mission‑critical operations? BigBear.ai is seeking...Senior
- Innovative Systems & Solutions | Full time - Onsite Senior System Administrator - FFPP-8804 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
$190k - $210k
Title: Senior System Administrator Location: Annapolis Junction, MD Compensation Range: $190 - $210K Clearance: Active TS/SCI w/ Polygraph needed to apply. Company Overview Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities...Senior- ...lieu of a degree. Experience with Windows and Linux server system administration as well as network engineering. Experience designing, developing... ...and solutions. Ability to work complex projects as a senior contributor within a development team consisting of customer...SeniorFor subcontractorRemote work2 days per week1 day per week
$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$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- ...MANTECH seeks a motivated, career- and customer-oriented Sr Cloud System Administrator to join our team in Annapolis Junction, MD. Our team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation...SeniorWork at office
- Location: Annapolis Junction, Maryland Category: Systems Administrator Level: Mid-Senior Travel Required: No Remote Type: No Clearance: TS/SCI w/ Polygraph Position is contingent upon contract award Position Requirements Provide support for implementation, troubleshooting...SeniorContract workTemporary workImmediate startRemote work
$113.9k - $127.3k
...your potential, and making a difference every day. Together, we belong to something beautiful. Your role at Sephora As a Senior Systems Administrator, for the Planning and Engineering Department you will be responsible to support our DC network to identify, resolve, and...SeniorLocal area$107k - $143k
Overview Job Title: Senior System Administrator Location: Arnold AFB, TN Job Family Code: P - IT/Cyber Security / Network Systems Function/Branch: Engineering/Infrastructure Directorate: Engineering & Tech Support Position Type: Regular, Full-Time Pay Type: Exempt...SeniorFull timePart timeH1bLocal area
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