IT Infrastructure Engineer - Windows/Linux, Virtualization

Challenge Manufacturing Holdings, Inc; United States; On-site; USD 90,000 - 130,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Health Savings Account

Flexible Spending Accounts

Short-Term Disability

Basic Life Insurance

Long-Term Disability options

Employer 401k Match

ESOP shares

Tuition reimbursement

Referral Bonus Program

Challenge Incentive Program

Paid time off

Job summary

Challenge Manufacturing Holdings, Inc. is seeking a detail-oriented Systems Engineer to join our IT Infrastructure team in Walker, MI. This role designs, implements, and supports core server infrastructure across Windows Server and Linux, managing AD, DNS, DHCP, Exchange, PKI, System Center, and virtualization.

You will monitor health, optimize performance, ensure security, maintain documentation, and participate in on-call rotations, with an 8:00 am–4:30 pm M-F schedule at our corporate office.

Qualifications

• Associates degree required in IT/CS or related field.
• 3+ years of network/support experience.
• Proven Windows Server and Linux administration experience.
• Hands on experience with AD, DNS, DHCP, Group Policy, Exchange, PKI, and System Center.
• Experience with virtualization tech (Nutanix AHV, Hyper-V).
• Experience with security tools (SentinelOne, Cisco Umbrella, Duo, Cisco ISE).
• Familiarity with SAN infra and performance monitoring.
• Experience with SCCM and Intune.
• Strong troubleshooting and communication skills.
• Proficiency with Microsoft products.
• Able to manage multiple priorities and work after-hours as needed.

Responsibilities

• Design and engineer infrastructure solutions to meet project and operational requirements.
• Build, configure, patch, and maintain Windows and Linux servers according to best practices.
• Administer and optimize Active Directory, DNS, DHCP, Group Policy, Exchange, PKI, and System Center.
• Implement and support virtualization platforms (Nutanix AHV, Hyper-V) and manage SAN storage.
• Monitor system health, track KPIs, perform tuning, and capacity planning.
• Develop and maintain technical documentation, standards, and processes.
• Diagnose and resolve hardware, software, and connectivity problems quickly.
• Ensure systems are secure through regular patching and SIEM-based threat hunting.
• Oversee backups and data integrity; ensure availability.
• Prepare audit reports and support compliance requirements.
• Recommend automation to improve efficiency; reduce manual tasks.
• Administer Microsoft licensing and email security to prevent threats.
• Collaborate with other departments and participate in on-call rotations.

Skills

Windows Server administration

Linux administration

Active Directory

DNS

DHCP

Group Policy

MS Exchange

PKI

System Center

Virtualization (Nutanix AHV/Hyper-V)

SAN storage

Scripting (PowerShell, Bash, Python)

Security tooling (SentinelOne, Cisco I

Troubleshooting

Education

Associate degree in Information Technology, Computer Science, or related field

Bachelor’s degree preferred

Tools

Nutanix AHV

Hyper-V

Microsoft System Center

Active Directory

DNS

DHCP

Exchange

PKI

SIEM platforms

Job description

Challenge Manufacturing Holdings, Inc. is seeking a detail-oriented Systems Engineer to join our IT Infrastructure team in Walker, MI. This role designs, implements, and supports core server infrastructure across Windows Server and Linux, managing AD, DNS, DHCP, Exchange, PKI, System Center, and virtualization.

You will monitor health, optimize performance, ensure security, maintain documentation, and participate in on-call rotations, with an 8:00 am–4:30 pm M-F schedule at our corporate office.