Annapolis Junction, Maryland, United States · On-site
$92k–$167k/yr
Senior
Mid/Sr System Administrator Leidos has a new and exciting opportunity for a Mid/Sr System Administrator in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engi…
Skills: System Administration, Windows Server 2019, Active Directory, Troubleshooting, Security Management
Annapolis Junction, Maryland, United States · On-site
$148k–$267k/yr
Senior+$700M raised
In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of v…
Skills: Systems Engineering, Cybersecurity, DOD Systems, Vulnerability Assessments, Systems Architecture
Northrop Grumman Mission Systems, Inc.
Network Engineer 3 (TG)
Annapolis Junction, Maryland, United States · On-site
$169k–$266k/yr
Senior+
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Skills: Network design, LAN administration, CAN administration, WAN administration, Network performance monitoring
Northrop Grumman Mission Systems, Inc.
CNO Reverse Engineer (TG)
Annapolis Junction, Maryland, United States · On-site
$109k–$171k/yr
Senior
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Annapolis Junction, Maryland, United States · On-site
$70k–$190k/yr
Mid level
Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Software Engineer (SWE L2/3) to support our intel t…
Skills: Python, Software engineering, Algorithms, Cloud capability, UI development
Northrop Grumman Mission Systems, Inc.
Software Engineer 2 (TG)
Annapolis Junction, Maryland, United States · On-site
$203k–$318k/yr
Senior+
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Skills: Software Engineering, C, C++, C#, Java
Northrop Grumman Mission Systems, Inc.
System Engineer 2 (TG)
Annapolis Junction, Maryland, United States · On-site
$120k–$188k/yr
Senior
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Annapolis Junction, Maryland, United States · On-site
Senior
As the HVAC Master Mechanic, you will install, service and repair environmental-control systems in residences, department stores, office buildings, and other commercial establishments, utilizing knowledge of refrigeratio…
Annapolis Junction, Maryland, United States · On-site
Senior+
Our work depends on a Storage Engineer joining our team to support Government activities in Annapolis Junction, MD, Sterling, VA, or Colorado Springs, CO. As a Storage Engineer supporting the Government, you will be trus…
Skills: Storage engineering, Backup technologies, SAN administration, NetApp, Dell/EMC
Northrop Grumman Mission Systems, Inc.
Principal Cyber Software Test Engineer (TG)
Annapolis Junction, Maryland, United States · On-site
$99k–$155k/yr
Senior
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Skills: Cybersecurity, Software Testing, Test and Evaluation, Systems Engineering, Modeling and Simulation
Northrop Grumman Mission Systems, Inc.
Principal Cyber Systems Engineer (TG)
Annapolis Junction, Maryland, United States · On-site
$120k–$188k/yr
Senior
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Senior Principal Cyber Software Test Engineer (TG)
Annapolis Junction, Maryland, United States · On-site
$123k–$194k/yr
Senior+
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Skills: Cyber Software Testing, Test and Evaluation, Systems Engineering, Modeling and Simulation, Statistical Analysis
Annapolis Junction, Maryland, United States · On-site
$102k–$255k/yr
Senior$1.7B raised
Worker Type Regular Job Description The primary role of the Senior Network Engineer is to provide advanced network engineering and system administration support for local and globally distributed networks of varying size…
Skills: Network engineering, System administration, Linux, C, C++
Northrop Grumman Mission Systems, Inc.
Staff CNO Cyber Protection Reverse Engineer (TG)
Annapolis Junction, Maryland, United States · On-site
$169k–$266k/yr
Senior+
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Annapolis Junction, Maryland, United States · On-site
$99k–$155k/yr
Senior+
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Polygraph TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportuniti…
Skills: System Administration, Troubleshooting, IT Infrastructure Management, Network Configuration, UNIX
Annapolis Junction, Maryland, United States · On-site
$134k–$241k/yr
Senior+$700M raised
In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of v…
Skills: Systems Engineering, Cybersecurity, Vulnerability Assessment, Threat Identification, Weapons Systems
Desktop Systems Engineer - Active TS/SCI with CI Poly
Annapolis Junction, Maryland, United States · On-site
Senior
Our work depends on a Systems Engineer joining our team to support Government activities in Annapolis Junction, MD or Sterling, VA. As a Systems Engineer supporting the Government, you will be a part of a team charged wi…
Skills: Windows 10, Windows 11, Mac OSX, Active Directory, Group Policy
Infoblox Systems Engineer - Active TS/SCI with CI Poly
Annapolis Junction, Maryland, United States · On-site
Senior+
Our work depends on an Infoblox Systems Engineer joining our team to support Government activities in Annapolis Junction, MD, Sterling, VA, or Colorado Springs, CO. As an Infoblox Systems Engineer supporting the Governme…
Annapolis Junction, Maryland, United States · On-site
$112k–$222k/yr
Senior
At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the li…
Skills: SQL, Python, Azure Data Factory, Azure Synapse, Apache Spark
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
$92k–$167k/yr
Full-time
bachelor degree
Paid Time Off, 11 Paid Holidays, 401k With 6% Company Match, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling
Posted 39d ago
~40 hrs/week
Responsibilities
The system administrator will manage, maintain, and optimize complex server enclaves and network infrastructure to ensure operational efficiency. Responsibilities include installing applications, performing security management, patching, and resolving hardware or software issues in a fast-paced environment.
Requirements
Candidates must possess a Bachelor's degree in a technical field and at least 8 years of relevant experience, or equivalent experience. A TS/SCI with Polygraph clearance is required, along with proficiency in Windows Server, Active Directory, and various security and automation tools.
Full job description
Mid/Sr System Administrator
Leidos has a new and exciting opportunity for a Mid/Sr System Administrator in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
Job Summary:
The selected individual will provide system administration support for a large, complex network environment with geographically distributed systems. The role supports system engineering requests by delivering solutions that meet operational needs, and by upgrading, sustaining, and maintaining existing capabilities. The candidate must be comfortable working in a fast-paced environment that includes multiple air-gapped systems, each with its own domain and supporting infrastructure. The position also requires maintaining a complex IT environment involving multiple users, as well as associated storage and network infrastructure. This role requires an energetic, focused, and driven individual who can adapt quickly to changing priorities. The candidate must demonstrate strong system administration and troubleshooting skills and work effectively with the team to execute a variety of network-centric system administration tasks.
Responsibilities Include The selected individual will be responsible for installing applications, administrating systems and processes, and ensuring issues are identified and resolved in a timely manner. She/he will be responsible for ensuring server and desktop configurations are optimized and running continuously and efficiently. The selected individual will also perform security management and application performance optimization functions.
Additional responsibilities may include:
Administration/sustainment of a system that provides a web-based application for storing, sharing, and distributing information.
Creating and maintaining complex server enclaves, including analyzing system scanning reports, patching, cert renewals, vulnerability management assessments, and active directory configurations.
Identifying and correcting hardware and software issues.
Responding to system administration, operations, and maintenance problems, and developing re-work solutions.
Creating and maintaining documentation of complex server/network environments to ensure that clear, concise and accurate information is readily available for incident resolution.
Communicating with users and external support personnel regarding system outages and upgrades, and conferring with upper management regarding recommended resolution options.
Basic Qualifications
Bachelor’s Degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related technical field and at least 8 years of relevant experience. Additional experience may be substituted for a degree.
Must have experience as a systems administrator providing direct support to end users and technical staff (developers, testers, engineers, etc.).
Must be proficient with Windows Server 2019 and Active Directory.
Must have experience with software/hardware deployment, patches, operating systems, and basic system backup and restore functions.
Must have experience with/be familiar with SALT, Ansible, Splunk, Puppet, SolarWinds, Nessus.
Must have experience with and/or have knowledge of Red Hat and VMWare.
Must have a solid understanding of advanced security protocols and standards.
Must have experience with both Client and Server virtualization environments.
Must have experience with installation, configuration, troubleshooting, and reimaging hardware.
Must have a solid understanding of information security principles and practices.
Must be able to lift up to 50 lbs.
Must be able to support occasional day or short duration travel.
Clearance Required: Must have TS/SCI with Polygraph.
Preferred Qualifications
Proficiency with SQL Server.
SALT and Python scripting experience.
Experience supporting a software configuration management and development environment.
Experience working in an Agile Development Environment or on an Agile Team.
Knowledge of PKI systems which use HSMs to validate key and NTP for synchronization.
Knowledge of PowerShell and PowerCLI.
Experience in documenting and providing information for security accreditation and certification.
At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you – apply today.
careers.leidos.com/CONMD
CSSKEY
CONMD
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:
August 4, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $92,300.00 - $166,850.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Related keywords
System AdministrationWindows Server 2019Active DirectoryCybersecurityNetwork OperationsSIGINTCryptographic Key ManagementAir-gapped SystemsSaltAnsibleSplunkPuppetSolarWindsNessusRed HatVMWare
An industry & technology leader serving government & commercial customers with smarter, more efficient innovations
Industry
Defense and Space Manufacturing
Company size
10,001+ employees
Founded
1969
Headquarters
Reston, Virginia
LinkedIn followers
582,523
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
Your most important work is ahead, visit careers.leidos.com for our latest opportunities.
Offices: 1750 Presidents St, Reston, Virginia 20190, US · 11955 Freedom Drive, Reston, VA 20190, US · 1145 N 2nd St, Leavenworth, KS 66048, US · 9600 Great Hills Trail, Austin, TX 78759, US · 221 3rd St, Newport, RI 02840, US
How much do Engineering jobs in Annapolis Junction, MD pay?
Based on 636 listings with disclosed salaries, most engineering jobs in Annapolis Junction, MD pay between $99k–$260k per year. Individual offers vary with seniority, company size, and specialization.
How many Engineering jobs are open in Annapolis Junction, MD right now?
There are currently 800 open engineering positions in Annapolis Junction, MD listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Engineering roles in Annapolis Junction, MD?
Companies currently hiring include Captivation, Wyetech, LLC, Peraton, Leidos, SageCor Solutions, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Engineering jobs in Annapolis Junction, MD?
Yes — 109 of the 800 open engineering positions offer remote or hybrid work (4 remote, 105 hybrid).
How do I apply for Engineering jobs in Annapolis Junction, MD?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.