Infrastructure Administrator I

Job DescriptionJob Description

What if the work you did every day kept an entire engineering firm running?

At HR Green, our IT team is the backbone of everything we do. From the engineers designing bridges to the planners shaping communities, they all depend on reliable infrastructure to do their best work. That's where you come in.

We're looking for an Infrastructure Administrator I to join our IT team and grow into a critical role supporting our enterprise environment. This is a hands-on, learn-by-doing position, and it's built for someone who's ready to dig in, ask good questions, and take real ownership over time.

Why this role is worth your attention

This isn't a helpdesk job with a fancy title. You'll be working across a broad, enterprise-grade infrastructure stack, covering everything from networking and servers to cloud platforms and security. You'll start by learning the environment, then take on real responsibilities, and over time, own critical systems yourself.

What you'll be doing

You'll work across a wide range of infrastructure areas, including:

• LAN/WAN networking, routers, switches, and UPS devices
• Windows and ESX server environments, including email, Active Directory, file, and print servers
• Citrix XenDesktop and VMware virtualization platforms
• Microsoft SQL Server and associated applications
• Microsoft Azure, Office 365, Exchange Online, and SharePoint Online
• Authentication and authorization systems, including Active Directory, SSO, Azure AD, ADFS, and MFA
• Enterprise storage, backup, and recovery infrastructure
• Network, server, and workstation security, including firewalls and intrusion detection
• Mobile Device Management (MDM) systems
• Infrastructure monitoring and batch scripting

Day-to-day, you'll be:

• Troubleshooting and resolving escalated Service Desk tickets
• Supporting workstation imaging, distribution, and inventory tracking
• Managing hardware, software, and firmware upgrades across platforms
• Performing server and network security audits
• Documenting infrastructure configurations and developing support procedures
• Assisting with capacity planning, system monitoring, and performance reporting
• Supporting IT infrastructure projects alongside the IT Architect
• Providing overflow phone/queue support for the Service Desk when needed

There will be an on-call rotation shared across the IT team, along with occasional after-hours work for planned changes. Travel between offices is expected at about 10 to 15%, with rare visits to the data center as needed.

You might be a great fit if...

• You're a natural troubleshooter who enjoys figuring out why something isn't working
• You want a role where the scope grows as you do
• You communicate well, both with technical colleagues and with non-IT staff who just need help
• You take pride in building reliable systems, not just putting out fires
• You're comfortable being on-call and know that critical infrastructure doesn't follow a 9-to-5

What you bring

• Bachelor's degree in an IT-related field, or equivalent work experience
• 3+ years of IT support or network-related experience
• Familiarity with Windows workstation and server environments (Windows 7/10 and Server 2008 through 2019)
• Hands-on hardware troubleshooting experience
• Strong verbal and written communication skills
• Solid analytical and problem-solving instincts
• Valid driver's license for occasional travel between offices

, but not required:

• Networking training or experience (CCNA, Network+)
• A+ or Microsoft MCITP certification
• VMware experience

Why HR Green

Our people are the heart of our success. We're ranked No. 168 on Engineering News-Record's Top 500 Design Firms list in 2025 and recognized as a Best Place to Work, and we've earned that by building a culture where employees feel supported, challenged, and valued.

We offer a comprehensive total rewards package, including:

• Employee ownership opportunities
• Hybrid and flexible work schedule
• Performance-based bonus program
• Traditional and Roth 401(k) with immediate vesting of employer match
• Tuition reimbursement for continued learning
• Two paid volunteer days per year
• Medical, dental, and vision coverage
• Parental leave
• Fitness membership reimbursement and onsite gym
• Ergonomic workstation setup and covered parking
• Visit our website for detailed total rewards information: https://www.hrgreen.com/careers/total-rewards/

If you're ready to grow your career in a place where your work actually matters, we'd love to connect.

This job description is not exhaustive. The job holder may be required to follow any other instructions and to undertake any other duties requested by their supervisor. HR Green reserves the right to change this job description.

Compensation Range

$74,000.00 - $115,000

The expected compensation range for this position is displayed in accordance with the Minnesota Omnibus Labor and Industry Policy Bill Article 7 Section 2. The final agreed-upon compensation is based on a number of factors, including but not limited to: individual education, qualifications, skills, prior work experience, competencies, and geographic work location. The total annual compensation package may consist of a base salary and eligibility to participate, after a qualifying period, in our performance and discretionary incentive bonus program(s).

The expected compensation range for this position is displayed in accordance with the Minnesota Omnibus Labor and Industry Policy Bill Article 7 Section 2 and the Illinois Salary Transparency amendment to the Equal Pay Act of 2003. The final agreed-upon compensation is based on a number of factors, including but not limited to: individual education, qualifications, skills, prior work experience, competencies, and geographic work location. The total annual compensation package may consist of a base salary and eligibility to participate, after a qualifying period, in our performance and discretionary incentive bonus program(s).

HR Green is proud to be an affirmative action/ equal opportunity employer. All qualified applicants will receive consideration for employment without regard to , , , , or expression, , , genetics, , , veteran status, or other classification protected by applicable federal, state or local law.