System Administrator / Tier II Support

Arcfield; Greenwood Village (CO); Hybrid; USD 69,000 - 120,000; Full time

Job summary

Arcfield is seeking a System Administrator / Tier II to support IT services and manage infrastructure in a hybrid Colorado-based environment. The role balances end-user support with backend system administration, requiring proactive problem solving and strong communication.

Responsibilities include managing Active Directory, patching, and coordinating with vendors on IT initiatives, while ensuring security and availability in a fast-paced setting.

Qualifications

• 2–4 years' experience with BS/BA or 0–2 years with MS/MA or 8–10 years with HS.
• DoD 8570 - IAT Level II certification (e.g., Sec+, CISSP) is required.
• Active TS/SCI clearance with ability to obtain a Polygraph.
• Proficient in Windows OS and AD; virtualization and networking knowledge.
• Experience with Linux and scripting (PowerShell, Bash, Python).

Responsibilities

• Serve as IT support contact via phone, email, ticketing, or in person.
• Install, configure, and update end-user OS, apps, and security software.
• Diagnose hardware, software, and network issues on desktops and printers.
• Maintain hardware/software asset inventory.
• Provide onboarding IT setup for new hires.
• Educate users on password management, backups, and software use.
• Document tickets and resolutions for future troubleshooting.
• Manage Active Directory, group policies, and user accounts.
• Monitor system performance for high availability.
• Collaborate with internal teams and vendors on IT initiatives.
• Plan system upgrades, patches, and firmware updates.
• Escalate to senior staff when needed.
• Maintain customer-service mindset in problem-solving.
• Install, configure, and maintain IT infrastructure.
• Monitor security vulnerabilities and respond to incidents.

Skills

Windows OS

Active Directory

Networking TCP/IP

PowerShell

Bash

Python

Linux

Troubleshooting

Security best practices

Communication

Independence

Education

BS/BA or MS/MA or HS with extensive experience

Tools

VMware

Hyper-V

On-Premise Software Center Configuration Management

Exchange

Active Directory (tooling)

Job description

Responsibilities

System Administrator / Tier II Support is a hybrid role that blends technical support for end-users and the administration of IT systems. This position is responsible for ensuring smooth day-to-day operation of IT services, providing frontline technical support to end-users, and managing the organization’s IT infrastructure. The individual will troubleshoot technical issues, perform routine maintenance, and implement system upgrades to ensure optimal performance and security.

The ideal candidate is a problem-solver with strong communication skills and a deep understanding of IT operational processes who thrives in a fast-paced environment where they can balance both user support and infrastructure management. The candidate should be able to work independently and/or with minimum guidance.

Key Responsibilities

• Serve as a point of contact for IT support requests, responding to incoming inquiries via phone, email, ticketing system, or in person.
• Install, configure, and update end-user operating systems, applications, and security software using Microsoft On-Premise Configuration Management
• Diagnose and resolve hardware, software, and network-related issues for desktops, laptops, and printers.
• Maintain inventory of hardware and software assets.
• Provide onboarding support, including setting up and configuring devices, user accounts, and email systems for new employees.
• Educate and train end-users on basic technology tasks such as password management, data backup, and software usage.
• Document help desk tickets, issue resolutions, and repetitive problems to enable efficient troubleshooting and to inform future preventative measures.
• Manage Active Directory, group policies, and user accounts, ensuring appropriate access permissions.
• Monitor system performance and ensure high levels of availability and reliability.
• Work with internal teams and external vendors to implement new IT initiatives, projects, or solutions.
• Plan and apply system upgrades, patches, and firmware updates to maintain compliance and security standards.
• Escalate unresolved issues to senior IT staff or vendors when necessary.
• Maintain a positive customer-service approach to problem-solving and issue resolution.
• Install, configure, and maintain IT infrastructure.
• Monitor and respond to security vulnerabilities or incidents, ensuring systems are protected from breaches or cyber threats.

Qualifications

Required Skills and Competencies

• 2 to 4 years of experience with BS/BA or 0 to 2 years with MS/MA or 8-10 years of experience with HS.
• DoD Approved 8570 - IAT Level II (e.g., Sec+, CISSP, etc.)
• Must possess and be able to maintain an active TS/SCI clearance with the ability to obtain a Polygraph.
• Ability to work independently
• Proficiency with Windows operating systems.
• Strong understanding of desktop hardware troubleshooting.
• Understanding of information security best practices.
• Knowledge of Active Directory, Office administration, and email Exchange systems.
• Knowledge of virtualization technologies (e.g., VMware, Hyper-V).
• Familiarity with networking protocols (e.g., TCP/IP, DHCP) and hardware (e.g., routers, firewalls, switches).
• Exceptional problem-solving, analytical, and multitasking abilities.
• Clear and effective written and verbal communication skills, with a service-oriented attitude.
• Basic understanding of scripting and automation (PowerShell, Bash, Python).
• Experience with Linux systems

Physical Demands

• Ability to lift and carry IT equipment weighing up to 50 lbs.
• Availability for on-call support as needed, including occasional after-hours and weekend support.
• Willingness to travel to additional office locations. (travel 10% or less of time)
• Flexible hours with 9/80 schedule that covers core hours of 9:00AM to 3:00PM

Desired Skills and Competencies

• Experience with Linux system administration.
• Experience with Voice over IP phone systems.
• Experience with Microsoft On-Premise Software Center Configuration Management

Equal Pay Act

This is the projected compensation range for this position. 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 (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, Arcfield ’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long-Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.Min: $68,812.50Max: $119,651.59

EEO Statement

We are an equal opportunity employer and federal government contractor. We do not discriminate against any employee or applicant for employment as protected by law.