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

Senior Tier III Systems Administrator

$137k - $169k

TekSynap

Responsibilities & Qualifications

RESPONSIBILITIES

Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. Performs system security administration functions, including creating user profiles and accounts. Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system-wide software and allocating mass storage space. Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources. May be assigned responsibility for less experienced staff.

REQUIRED QUALIFICATIONS

Active TS/SCI + CI Poly clearance Bachelor’s degree in Computer Science, Information Systems, Engineering, or related technical discipline (or equivalent experience). CompTIA Security+ At least one Advanced Platform Certification:

RHCSA

RHCE or Windows equivalent Minimum 8–12 years of progressively responsible systems administration experience. Demonstrated experience supporting enterprise, multi-user environments in DoD or Intelligence Community settings preferred. Experience operating in classified environments. Overview We are seeking a Senior Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior Systems Administrator maintains smooth operation of multi-user computer systems, including coordination with network engineers. TekSynap is a fast-growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment. We offer our full-time employees a competitive benefits package to include health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays. Additional Job Information

WORK ENVIRONMENT AND

PHYSICAL DEMANDS

The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions. Location: Annapolis Junction, MD Type of environment: Varies Noise level: Low Work schedule: Non-standard shift Amount of Travel: 20% PHYSICAL DEMANDS The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the duties of this job, the employee is regularly required to use hands to grip, handle, or feel; reach with hands and arms; and talk or hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is frequently required to lift up to 25 pounds and may lift up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus.

WORK AUTHORIZATION/SECURITY CLEARANCE

U.S. Citizenship Active TS/SCI + CI Poly clearance

OTHER INFORMATION

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. TekSynap is a drug-free workplace. We reserve the right to conduct drug testing in accordance with federal, state, and local laws. All employees and candidates may be subject to drug screening if deemed necessary to ensure a safe and compliant working environment.

WAGE INFORMATION

Target salary range: $137,000.00 - $169,000.00. The salary range displayed is an estimate and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements. The displayed salary is one component of the total compensation package for employees.

EQUAL EMPLOYMENT OPPORTUNITY

In order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as “protected status”). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company-sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment. TekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. If you believe you need a reasonable accommodation in order to search for a job opening or to submit an application, please contact View email address on click.appcast.io for assistance. #J-18808-Ljbffr TekSynap

Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior Tier III Systems Administrator in Annapolis, MD vacancy
  • 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
  • $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
    14 hours ago
  • Reflexive Concepts is seeking a seasoned System Administrator III to join the team in Maryland. The role focuses on implementing, troubleshooting...  ...storage/network devices and mobile endpoints. You will provide Tier 1 and Tier 2 support, manage system configurations, and... 
    Senior

    Reflexive Concepts

    Annapolis, MD
    1 day ago
  • $79.8k - $155.2k

     ...States Job Description GTSC seeks System Administrators (Level I, II, or III). Location Hanover, MD (All work is...  ...Level I (Entry/Intermediate) Provide Tier 1 and basic Tier 2 support for...  ...and system improvements Level III (Senior) Analyze and resolve complex, multi... 
    Suggested
    Flexible hours
    Shift work
    Rotating shift

    Government Technical Services Corporation

    Annapolis, MD
    2 days ago
  • Reflexive Concepts is seeking a skilled System Administrator III to join our team! Responsibilities Provide support for implementation, troubleshooting and maintenance of IT systems Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis,... 
    Suggested

    Reflexive Concepts

    Annapolis, MD
    1 day 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 Windows environments. You will provide Tier 1-2 support, monitor operations, perform... 
    Senior

    Innovative Systems & Solutions

    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 (ISSI) is seeking a Senior System Administrator (TS/SCI with Polygraph) in Annapolis Junction, Maryland. The role focuses on implementing...  ..., and network environments. You will guide Tier 1-2 support, manage UNIX/Windows administration,... 
    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...  ...customers. The role includes handling Tier 1/2 support, system maintenance, and performance... 
    Senior

    Innovative Systems & Solutions

    Annapolis, MD
    3 days ago
  • Innovative Systems & Solutions | Full time - Onsite Senior System Administrator - FFNN-8807 Annapolis Junction, United States | Posted on 03/17/2026 Innovative Systems...  ...Responsibilities ProvideTier 1 (Help Desk) and Tier 2 (Escalation) support, including... 
    Senior
    Full time
    Temporary work
    Local area
    Immediate start

    Innovative Systems & Solutions

    Annapolis, MD
    3 days ago
  • $115k - $175k

     ...Riverstone is seeking a motivated, career, and customer-oriented Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is...  .../storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem... 
    Senior
    Hourly pay
    Contract work
    Work experience placement

    Envision Innovative Solutions

    Annapolis, MD
    3 days ago
  • $235k - $270k

     ...troubleshooting, and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and related processes. Provides...  .../server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis... 
    Senior
    Hourly pay
    Temporary work
    Immediate start
    Flexible hours

    Erias Ventures, LLC

    Annapolis, MD
    4 days ago
  • $190k - $240k

     ...of more than 100 enterprise business systems that enable tens of thousands of government...  ...environments. We are seeking a Senior System Administrator for one of our PRIME CONTRACTS supporting...  ...and related infrastructure. Provide Tier 1 (Help Desk) and Tier 2 (Escalation)... 
    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
  • Freedom Technology Solutions Group seeks a System Administrator to join a new team in Annapolis Junction, MD. You will assist in engineering, design...  ..., and distribute physical products. Responsibilities include Tier 1/2 support, managing IT systems, and ensuring security... 
    Senior

    (EDO) Entertainment Data Oracle, 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...  ...physical products. Responsibilities include providing Tier 1 and Tier 2 support, managing day-to-day IT operations, assisting... 
    Senior

    Freedom Technology Solutions Group, LLC

    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...  ...server/storage/network and mobile devices. The role emphasizes Tier 3 troubleshooting and change control, with hands-on... 
    Senior

    CTRL + LLC

    Annapolis, MD
    3 days ago
  • $42.42 - $104.64 per hour

    Wyetech, LLC is seeking a Systems Administrator to support IT systems for federal government customers. Responsibilities include troubleshooting, maintaining systems, and providing Tier 1 and Tier 2 support. The ideal candidate has a Bachelor's degree and ten years of experience... 
    Senior
    Hourly pay

    Wyetech, LLC

    Annapolis, MD
    14 hours ago
  • Dover Networks LLC in Maryland seeks a Senior Systems Administrator with Top Secret/SCI and Full Scope Poly to support IT infrastructure, troubleshooting...  ...devices and mobile devices. Responsibilities include Tier 1 and Tier 2 support, system configuration, OS management (... 
    Senior

    Dover Networks LLC

    Annapolis, MD
    1 day ago
  • $150k - $205k

    Momentum Engineering is seeking a Cloud Systems Administrator to sustain and optimize cloud environments crucial for Intelligence Community missions. Responsibilities include providing Tier 1-3 support and troubleshooting complex Linux systems, working with technologies... 
    Senior

    Momentum Engineering

    Annapolis, MD
    1 day ago
  • $115k - $175k

     ...Solutions in Annapolis Junction, Maryland is seeking a motivated Senior Systems Administrator to support critical IT systems. This onsite position...  ...operating systems, troubleshooting issues, and providing tiered support. Candidates must have a Bachelor’s degree or equivalent... 
    Senior

    Envision Innovative Solutions

    Annapolis, MD
    2 days ago
  • Wyetech, LLC in Maryland is seeking a highly experienced System Administrator to implement, troubleshoot, and maintain IT systems across client/server/storage/network devices. The role includes Tier 1 and Tier 2 support, UNIX/Linux and Windows administration, and network... 
    Senior

    Wyetechllc

    Annapolis, MD
    1 day ago
  • Unisity, LLC in the United States seeks a Level 3 System Administrator to support the implementation, troubleshooting and maintenance of IT systems...  .... You will manage day-to-day operations and provide Tier 1 and Tier 2 support as part of a collaborative team. A TS/SCI... 
    Senior

    Socket.dev

    Annapolis, MD
    4 days ago
  • $2,500 per month

    Overview Prodigy One, LLC. is a systems and software engineering services firm providing...  ...Responsibilities We are seeking a System Administrator who will provide support for...  ...network devices, mobile devices, etc. Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem... 
    Immediate start

    One Network Enterprises

    Annapolis, MD
    4 days ago
  • $85k - $92k

    Systems Administrator, Tier 2 GTSC seeks a Systems Administrator, Tier 2 , Level 2. Location: Annapolis Junction, Maryland area Shift: Wed to Sun 2:00 PM to 10:00 PM Work Environment: All work is on‑site in a SCIF; not hybrid or remote. Clearance: Top Secret SCI with... 
    Worldwide
    Flexible hours
    Shift work

    Government Technical Services Corporation

    Annapolis, MD
    1 day ago
  • $215k - $275k

     ...troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these...  .../server/storage/network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification,... 
    Senior
    Hourly pay
    Extra income
    Temporary work
    Immediate start
    Flexible hours

    Erias Ventures, LLC

    Annapolis, MD
    3 days ago
  • $85k - $92k

    Government Technical Services Corporation is hiring a Systems Administrator, Tier 2, in Annapolis Junction, Maryland. This role includes providing technical support and coaching to other professionals in a secure on-site environment. Candidates must have a Top Secret SCI... 

    Government Technical Services Corporation

    Annapolis, MD
    1 day ago
  • $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
    50 minutes ago
  • As a Tier II Help Desk / Systems Administrator, you will provide advanced technical support to enterprise users by diagnosing, troubleshooting, and resolving hardware, software, desktop, and cloud infrastructure issues. You will support users worldwide through remote support... 
    Full time
    Remote work
    Worldwide
    Monday to Friday
    Shift work

    Omniscius Consulting

    Annapolis, MD
    4 days 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
  • 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

Do you want to receive more vacancies?

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