SYSTEM ADMINISTRATOR –Unix/Windows - 5+ yrs of Experience - TS/SCI w/Poly clearance is required- RC - 319

Halogen Engineering Group, Inc; New York (NY); On-site; USD 149,000 - 158,000; Full time

Benefits offered by this job

CareFirst Insurance

Guardian Insurance

Vision Plan

401K Retirement Plan

Life Insurance, AD&D, Disability

Paid Time Off

Job summary

Halogen Engineering Group, Inc. is seeking a System Administrator with UNIX/Windows expertise to support IT systems, troubleshoot issues, and manage infrastructure. The role requires TS/SCI with Poly, 5+ years of experience, and is based in Columbia, MD with on-site work.

Salary ranges from 149,000 USD to 158,000 USD annually. Duties include day-to-day operations, problem resolution, and coordinating with agency management and customers.

Qualifications

• Five (5) years of SA experience in programs/contracts of similar scope, type, and complexity is required.
• Bachelor's degree in a technical discipline from an accredited college or university is required.
• Five (5) years of additional SA experience substituted for a bachelor's degree.

Responsibilities

• Provides support for implementation, troubleshooting and maintenance of IT systems.
• Manages IT system infrastructure and related processes.
• Supports day-to-day operations, monitoring and problem resolution for client/server/storage/network devices, mobile devices, etc.
• Provides Tier I (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution.
• Communicates status to agency management and internal customers.
• Configs and manages UNIX and Windows OS and installs/loads OS software; troubleshoots and enhances reliability and performance.

Skills

UNIX administration

Windows administration

Troubleshooting

Tier I support

Tier II escalation

Education

Bachelor's degree in technical discipline

Five years of SA experience substituted for degree

Tools

Server hardware

Network devices

Job description

SYSTEM ADMINISTRATOR –Unix/Windows - 5+ yrs of Experience - TS/SCI w/Poly clearance is required- RC - 319

Posted On 10/12/2026

Job Information

Technology

Work Experience 10-15 Years

149K - 158K

City Columbia

State/Province Maryland

21044

Job Description

System Administrator – Unix/Windows- 5+ yrs of Experience - TS/SCI w/Poly Required

Halogen Engineering Group is looking for a System Administrator who can p rovide 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 I (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. Provides support for the dispatch system and hardware problems and remains involved in the resolution process. 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.

Location:Columbia, MD

Travel Required: No

Shift: Day

Remote Type: Onsite

Security Clearance: Current TS/SCI

Polygraph: Required

Salary Range

The projected compensation range for this position is 149K - 158K (annualized USD).

Salaryis determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

Requirements

Capabilities

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 I (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,

Provides support for the dispatch system and hardware problems and remains involved in the resolution process.

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

Provide Tier I (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis and resolution of problems

Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network

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

Qualifications

Five (5) years of experience as a SA in programs and contracts of similar scope, type, and complexity is required.

Bachelor's degree in a technical discipline from an accredited college or university is required.

Five (5) years of additional SA experience substituted for a bachelor's degree.

CareFirst Insurance

Medical Plans

• Three available medical plans–2 Platinum PPO Plans ($0 Deductible) and 1 HSA Plan ($1500 deductible)
• Halogen pays 100% Medical Premium Costs up to $25,000
• CareFirst Wellness Rewards Program

Guardian Insurance

• Halogen pays 50% of the plan costs

Vision Plan

• Halogen pays 100% of the plan costs

401K Retirement Plan

10% contribution paid by the company, automatically vested and paid in each pay period.

Life Insurance, AD&D, Short and Long Term Disability Coverage

Paid Time Off

Based on performance and billable hours

Halogen Engineering Group does not discriminate in employment on the basis of race, color, religion, sex (including pregnancy and gender identity), national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service, or other non-merit factor.