Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Systems Administrator

$115k - $175k

Envision Innovative Solutions

Riverstone Enterprise Solutions, an Envision Innovative Solutions Company, delivers mission-focused technology solutions to the Intelligence Community. Since 2008, we have supported critical national security programs by building high-performing engineering teams and developing innovative enterprise solutions. Our engineers work in a collaborative, zero-bureaucracy environment where expertise is valued, ideas are heard, and contributions directly drive mission success. Your adventure begins now—unleash your potential at Riverstone, we combine the 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 for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day‑to‑day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems. Provides support for the escalation and communication of status to agency management and internal customers. Configures and manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to improve reliability and performance. Required Skills Ten (10) years' experience as Systems Administrator including Linux, MongoDB, AWS, Kubernetes, Terraform and Ansible. Bachelor’s degree in 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 or higher is required. Security Clearance Requirement Current/Active TS/SCI with Full Scope Polygraph. Compensation The projected compensation range for this position is $115,000.00–$175,000.00. Differentiating factors may impact final salary/hourly rate, including but not limited to contract wage determination, relevant work experience, skills and competencies that align to the specified role, geographic location, education and certifications as well as Federal Government Contract Labor categories. Equal‑Opportunity Statement Riverstone Enterprise Solutions is an equal‑opportunity employer. All Qualified applicants will receive consideration for employment without regard to race, religion, color, national origin, citizenship, sex, sexual orientation, gender identity, veteran's status, age, disability or any other basis prohibited by law. #J-18808-Ljbffr Envision Innovative Solutions

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Systems Administrator in Annapolis, MD vacancy
  • $190k - $210k

     ...Location: Annapolis Junction, Maryland Type: Contract Job #3710 Title: Senior System Administrator Location: Annapolis Junction, MD Compensation Range: $190 -$210K *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview... 
    Senior
    Contract work
    Local area

    Cornerstone Defense

    Annapolis, MD
    1 hour ago
  • $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

    Accenture Federal Services

    Annapolis, MD
    2 days ago
  • 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

    Metrea

    Annapolis, MD
    4 days ago
  • Cornerstone Defense LLC is seeking an Expert System Administrator in Annapolis Junction, MD. Candidates must have an active TS/SCI clearance and a minimum of 15 years of experience in system administration. The role entails supporting the implementation and maintenance... 
    Senior

    Cornerstone Defense LLC

    Annapolis, MD
    3 days ago
  • $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

    Innovativesystems

    Annapolis, MD
    3 days ago
  • 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

    Innovative Systems & Solutions

    Annapolis, MD
    3 days ago
  • 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

    Innovative Systems & Solutions

    Annapolis, MD
    3 days ago
  • 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

    Annapolis, MD
    3 days ago
  • Prodigy One, LLC is seeking a System Administrator to support IT systems for state and federal customers in Annapolis Junction, MD. The role includes Tier 1 help desk, Tier 2 escalation, and ongoing maintenance of UNIX and Windows environments. The candidate must have... 
    Senior

    One Network Enterprises

    Annapolis, MD
    4 days ago
  •  ...(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

    Peraton

    Annapolis, MD
    15 hours ago
  • 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... 
    Senior
    Full time
    Temporary work
    Local area
    Immediate start

    Innovative Systems & Solutions

    Annapolis, MD
    3 days ago
  • $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... 
    Senior
    Contract work
    Remote work
    Shift work

    Peraton

    Annapolis, MD
    4 days ago
  • Que Technology Group, Inc., is seeking a Senior System Administrator to provide High Performance Computing (HPC) services in the form of HPC enhanced sustainment capabilities. Responsibilities include, but are not limited to: Provide support for implementation, troubleshooting... 
    Senior
    Temporary work
    Immediate start

    Que Technology Group

    Annapolis, MD
    1 day ago
  •  ...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... 
    Senior
    For subcontractor
    Remote work
    2 days per week
    1 day per week

    Peraton

    Annapolis, MD
    15 hours ago
  • $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... 
    Senior
    Contract work
    For contractors
    Work experience placement
    Flexible hours

    CACI International Inc.

    Annapolis, MD
    2 days ago
  • $128k - $160k

    Responsibilities & Qualifications RESPONSIBILITIES The Senior Systems Administrator is expected to be able to accomplish the following: Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. Performs... 
    Senior
    Full time
    Contract work
    Temporary work
    Local area
    Shift work

    TekSynap

    Annapolis, MD
    4 days ago
  • $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... 
    Senior
    Hourly pay
    Temporary work
    Immediate start
    Flexible hours

    Erias Ventures, LLC

    Annapolis, MD
    4 days ago
  • $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... 
    Senior
    Permanent employment
    Contract work
    Work experience placement
    Local area

    AV

    Annapolis, MD
    15 hours ago
  • $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 the... 
    Senior
    Flexible hours

    (EDO) Entertainment Data Oracle, Inc.

    Annapolis, MD
    2 days ago
  • $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... 
    Senior
    Local area

    LVMH Group

    Annapolis, MD
    15 hours ago
  • $190k - $240k

     ..., and transformation of more than 100 enterprise business systems that enable tens of thousands of government personnel, industry...  ...across multiple secure environments. We are seeking a Senior System Administrator for one of our PRIME CONTRACTS supporting mission-critical... 
    Senior
    Contract work
    For contractors
    Work at office
    Worldwide
    Monday to Friday
    Flexible hours
    Night shift

    Freedom Technology Solutions Group, LLC

    Annapolis, MD
    4 days ago
  • Reflexive Concepts is seeking a seasoned System Administrator III to join the team in Maryland. The role focuses on implementing, troubleshooting, and maintaining IT systems, spanning client/server/storage/network devices and mobile endpoints. You will provide Tier 1 and... 
    Senior

    Reflexive Concepts

    Annapolis, MD
    1 day ago
  • dstaffing is seeking experienced systems administrators to join our innovative IT team in Maryland. Candidates should have at least five years of experience in systems administration, providing support for IT system implementation, troubleshooting, and maintenance. We... 
    Senior

    dstaffing

    Annapolis, MD
    1 day ago
  • Freedom Technology Solutions Group seeks a System Administrator to join a new team in Annapolis Junction, MD. You will assist in engineering, design, installation, configuration, and maintenance for the CPPM program, modernizing existing systems that order, generate, produce... 
    Senior

    (EDO) Entertainment Data Oracle, Inc.

    Annapolis, MD
    1 day ago
  • Unisity, LLC is seeking a senior systems administrator to support a large, complex network with air-gapped segments. The role emphasizes uptime, security, and rapid response to varied operational demands across distributed domains. The candidate will install and manage... 
    Senior

    Unisity, LLC

    Annapolis, MD
    1 day ago
  • Leidos is seeking a Mid/Sr System Administrator to support a large, complex network environment with geographically distributed systems. You will install applications, administer systems, and ensure uptime while aligning with security and operational requirements. Join... 
    Senior

    Leidos

    Annapolis, MD
    4 days ago
  • 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

    Columbia Technology Partners, Inc

    Annapolis, MD
    1 day ago
  • Freedom Technology Solutions Group is seeking a System Administrator to join a new team in Annapolis Junction, MD. You will assist in engineering, design, installation, configuration, and maintenance for the CPPM program, modernizing systems that order, generate, produce... 
    Senior

    Freedom Technology Solutions Group, LLC

    Annapolis, MD
    1 day ago
  • Avalore.ai in Maryland seeks a seasoned Senior Systems Analyst to lead design, integration, and ongoing support of complex DoD IT systems. You will handle day-to-day operations, troubleshooting and escalation for multiple IT domains including server, storage, and network... 
    Senior

    Avalore.ai

    Annapolis, MD
    1 day ago
  • Ctrl+ is seeking a System Administrator (SA) 3 to own mission-critical IT systems in Columbia. You will troubleshoot, maintain, and enhance IT infrastructure, supporting client/server/storage/network and mobile devices. The role emphasizes Tier 3 troubleshooting and change... 
    Senior

    CTRL + LLC

    Annapolis, MD
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Systems Administrator. Be the first to apply!