Senior Systems Administrator
$160k - $175kEnvision Innovative Solutions
At Envision Innovative Solutions, we're more than a technology company-we're a team of innovators, problem-solvers, and mission-focused professionals dedicated to making a meaningful impact. Since 2006, we have delivered innovative technology, engineering, cybersecurity, and mission support solutions to government and commercial clients. Our people are our greatest strength. We foster a collaborative, and people-first culture where creativity is encouraged, professional growth is supported, and every team member has the opportunity to make a difference.
Envision is seeking a motivated, career-oriented, and customer-focused Senior Systems Administrator to join our team at Annapolis Junction, Maryland . This is an onsite position.
Primary Responsibilities:
- Provide support for implementation, troubleshooting and maintenance of IT systems
- Provide Tier 1 (Help Desk) problem identification, diagnosis and resolution of problems
- Manage the daily activities of configuration and operation of IT systems
- Provide assistance to users in accessing and using IT systems
- Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems (U) Provide 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.
- Provide support for the escalation and communication of status to agency management and internal customers
- Optimize system operations and resource utilization, and perform system capacity analysis and planning
- Provide in-depth experience in trouble-shooting IT systems
- Provide detailed analysis and feedback to agency management and internal customers for escalated tickets
- Provide support for the dispatch system and hardware problems and remains involved in the resolution process
- Configure and manage UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance
- Ten (10) years' experience as an SA in programs and contracts of similar scope, type, and complexity is required.
- Bachelors 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 bachelors degree.
- DoD 8570 compliance with Information Assurance Technical (IAT), Level I or higher is required.
- Current/Active TS/SCI with Full Scope Polygraph.
Envision 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.
$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- ...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
$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- 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
- 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
$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 (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
- NexOne, Inc. is seeking a senior Systems Analyst/Administrator with MILSATCOM expertise and a Top Secret clearance to support DoD systems. Responsibilities include analysis, training, systems administration, and maintenance of Windows environments, AD domains, and databases...Senior
- 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
- ...(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
- Bachelor’s degree in a technical discipline and 15 years of system administration experience. Five years of additional experience may be substituted for a BS. An active TS/SCI w/Poly is required. 5+ years of combined experience in network administration (mid-level) to include...SeniorRemote work
- 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
- 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...SeniorTemporary workImmediate start
- ...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
$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$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$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...SeniorFull timeContract workTemporary workLocal areaShift work$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...SeniorFlexible hours$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$190k - $240k
Senior System Administrator Join a team that powers the business enterprise behind the mission. Freedom supports the sustainment, modernization, and transformation of more than 100 enterprise business systems that enable tens of thousands of government personnel, industry...SeniorContract workFor contractorsWorldwideMonday to FridayFlexible hoursNight shift- 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
- 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
- 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
- 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
- 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
- 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
$135k - $216k
Peraton is seeking a PMO Senior Systems Administrator to join our Cyber Mission team in Annapolis Junction, MD. This position requires managing IT systems, providing crucial support to programs, and requires an active TS/SCI clearance. Candidates must have significant...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
- Leidos is seeking a Mid/Sr System Administrator in Maryland to join a dynamic team focused on National Security. The successful applicant will manage a complex network environment, ensuring optimal performance and security of systems. This role requires extensive experience...SeniorFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Systems Administrator. Be the first to apply!
- remote systems administrator Annapolis, MD
- systems administrator Annapolis, MD
- application system administrator Annapolis, MD
- system admin Annapolis, MD
- computer systems administrator Annapolis, MD
- IT infrastructure administrator Annapolis, MD
- server administrator Annapolis, MD
- microsoft systems administrator Annapolis, MD
- enterprise administrator Annapolis, MD
- hpc system administrator Annapolis, MD

