Systems Administrator L3

Power3; Fort Meade (MD); On-site; USD 175,000 - 225,000; Full time

Benefits offered by this job

Health premiums

Dental premiums

Vision premiums

HSA up to 3900

PTO 7 weeks

Automatic 401k

Federal Holidays

Tuition reimbursement

Ravens season tickets

Golf events

Job summary

Technology Resource Experts, LLC seeks an experienced Systems Administrator L3 to maintain and optimize the IT infrastructure. The role handles escalated issues, performs root cause analysis, and implements system enhancements with focus on core services and security.

Responsibilities include configuring servers, managing AD/DNS/DHCP, scripting for automation, and ensuring patching and backups. Requires TS/SCI with poly, enterprise experience, and strong troubleshooting skills.

Qualifications

• Active TS/SCI with polygraph required; last poly within 7 years.
• Cited experience as an L3 Systems Administrator in an enterprise environment.
• Expert knowledge of Windows Server and Linux.
• Strong networking knowledge: TCP/IP, DNS, and firewalls.
• Experience with virtualization platforms (VMware/Hyper-V).
• Proficient in scripting (PowerShell, Bash) for automation.
• Excellent problem-solving, analytical and troubleshooting skills.
• Effective communication and collaboration with teams and vendors.
• Level 3: BS + 15 years experience.

Responsibilities

• Install, configure, and maintain server OSs (Windows Server, Linux) in physical and virtual environments.
• Manage user accounts, security permissions, and access controls.
• Monitor performance and ensure availability, integrity, and security of hardware, servers, and processes.
• Administer core services: Active Directory, Group Policy, DNS, DHCP.
• Implement and manage backup and recovery strategies.
• Develop and maintain automation scripts (PowerShell, Bash).
• Manage system patching and updates for security and compliance.

Skills

TS/SCI with polygraph

L3 Systems Admin

Active Directory

Group Policy

DNS

DHCP

PowerShell

Bash

VMware

Hyper-V

Networking

Security

Education

BS + 15 years experience

Job description

Technology Resource Experts, LLC is looking for an experienced Systems Administrator to join their rapidly growing team!

The Systems Administrator L3 is responsible for the maintenance, support, and optimization of the company's IT infrastructure. This role involves resolving complex technical issues escalated from the Level 1 support team, performing root cause analysis, and implementing advanced system enhancements. The ideal candidate will have strong troubleshooting abilities, a deep technical understanding of enterprise systems, and the ability to act as a subject matter expert for core infrastructure.

Description:

• Install, configure, and maintain server operating systems (e.g., Windows Server, Linux) in physical and virtual environments.
• Manage user accounts, security permissions, and access controls.
• Monitor system performance and ensure the availability, integrity, and security of all hardware, server resources, and key processes.
• Administer core services, such as Active Directory, Group Policy, DNS, and DHCP.
• Implement and manage system backup and recovery strategies to ensure data protection.
• Develop and maintain scripts (e.g., PowerShell, Bash) to automate repetitive tasks and improve system efficiency.
• Manage system patching and updates to maintain security and compliance.

Qualifications

• An active TS/SCI with polygraph is required. Last Poly within past 7 years.
• Proven experience as an L3 Systems Administrator in an enterprise environment.
• Expert knowledge of enterprise operating systems, such as Windows Server and/or Linux.
• Strong understanding of networking concepts, including TCP/IP, DNS, and firewalls.
• Experience with virtualization platforms like VMware or Hyper-V.
• Proficiency in scripting languages for automation.
• Excellent problem‑solving, analytical, and troubleshooting skills.
• Effective communication and interpersonal skills for collaboration with team members and vendors.
• Level 3:
  • BS + 15 years experience

Technology Resource Experts, LLC offers the very best compensation packages and the flexibility to let our employees decide what’s most important to them. No vesting schedule, no annual requirements for perks — we believe you should have the freedom to choose the benefits that work best in your life.

Employee Freedom of Choice

Our focus is on people first. We offer comprehensive and flexible compensation packages that match the best the industry has to offer and can be customized to fit your needs.

Our Benefits:

• 100%company-paidhealth,dental, andvisionpremiums
• Automaticcompany contributedHealth Savings Account (HSA)upto$3,900for families
• Up to 7 weeksof Paid Time Off (PTO)
• Automatic 401kInvestment
• Paid11 Federal Holidays
• BlueCross BlueShieldHealth Insurance
• Tuition/TrainingReimbursement
• Access toRavensseason ticketsin club level
• Company-paidgolf events foryour timeandcourse fees

Technology Resource Experts provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, pregnancy, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

The projected compensation range for this position is $175K - $225K. There are differentiating factors that can impact a 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. In addition,Technology Resource Experts, LLCinvests in its employees beyond just compensation.Trexperts'benefits offerings include, dependent upon position, Health Insurance, Dental and Vision Coverage, Health Savings Account (HSA), Paid Time Off, Holiday Pay,Short Term and Long Term Disability,Life Insurance, 401(k) Plan, Safe Harbor 401k Investment, Learning and Development opportunities, Referral Bonuses and Flex Time.