OT/IT Support Engineer

Commonwealth Fusion Systems LLC

Milpitas (CA)

On-site

USD 95,000 - 120,000

Full time

4 days ago

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Benefits offered by this job

Health Insurance

401(k) Matching

Paid Time Off

Equity

Job summary

Commonwealth Fusion Systems LLC in Milpitas, CA is hiring an OT/IT Support Engineer. This hands-on role blends shop-floor OT infrastructure with end-user desktop support, serving as the on-site tech contact to keep engineers and operators productive.

You will install and maintain network gear, manage assets, support AV systems, and collaborate with IT and manufacturing teams to securely integrate OT networks with enterprise systems.

Qualifications

3–5+ years in hands-on technical support or site infrastructure.
Experience supporting Windows, macOS, and Linux environments.
Knowledge of network switches, cabling, and patch panels.
Familiarity with IaC tools like Terraform and Ansible.

Responsibilities

Maintain OT/IT shop-floor infrastructure and on-site workstations.
Install and configure network gear in coordination with IT Security.
Provide deskside support for Windows, macOS, and Linux.
Maintain asset tracking and lifecycle of IT/OT hardware.
Support AV and conference room equipment.
Collaborate with manufacturing and control systems teams to integrate OT networks.

Skills

Windows support

macOS support

Linux support

Networking basics

Cable management

On-site troubleshooting

Education

Bachelor's degree in IT/CS

Tools

Terraform

Ansible

Cisco switches

Ubiquiti equipment

Juniper devices

Edge firewalls

Job description

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We're in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

Join the power movement as a OT/IT Support Engineer

We are looking for a versatile, hands-on OT/IT Support Engineer to join our team at our Milpitas site. This is a blended hands‑on role, split between managing shop‑floor OT infrastructure and providing direct end‑user desktop assistance. You will serve as the primary on‑site technical point of contact, ensuring our engineers, technicians, and operations teams have reliable, high‑performing workstation technology, while also maintaining and scaling the physical network and compute infrastructure that powers our testing and manufacturing operations (Operational Technology / OT).

If you thrive in high‑tempo environments where no two days are the same, equally comfortable running cables, configuring network switches on the shop floor, fixing a user's workstation issue or creating a monitor to track network utilization, this is the role for you.

What you'll do:

OT & Industrial Infrastructure Maintenance: Deploy, monitor, and maintain local site server cabinets, industrial network switches, patch panels, cabling, power equipment (UPSs), and edge compute nodes supporting test rigs and manufacturing lines
Network & Systems Setup: Perform physical installation and basic configuration of networking gear (switches, access points, edge firewalls) in coordination with central Network and IT Security teams
On‑Site Deskside Support: Provide white‑glove hardware and software troubleshooting for local staff, including onboarding, endpoint deployment (Windows, Mac, Linux), workstation peripheral setup, and rapid incident resolution
Site Tech Asset Management: Maintain accurate asset tracking, hardware inventory, rack elevations, and lifecycle management for all IT/OT endpoints and spare hardware at the Milpitas facility
AV & Conference Room Support: Ensure conference rooms, display systems, and audio/video equipment are operational and updated
Cross‑Functional Collaboration: Partner with manufacturing engineers, control systems teams, and corporate IT to safely integrate operational technology (OT) networks with core enterprise systems
Process & Documentation: Create clear end‑user documentation, standard operating procedures (SOPs), and site network layout diagrams
A hybrid problem solver who enjoys interacting with users face‑to‑face while staying deeply connected to core OT/IT infrastructure
Self‑starters who take ownership of a physical site, maintaining high standards for organized cabling, hardware staging, and overall technical workspace presentation
Strong communicators capable of explaining complex technical topics clearly to both non‑technical staff and high‑level engineering teams

What we’re looking for:

Experience: 3-5+ years in a hands‑on technical support, IT systems administration, or site infrastructure engineer role
OS Support: Deep familiarity with supporting and troubleshooting Windows, macOS, and basic Linux (Ubuntu/RedHat) environments. Kubernetes experience is a plus
Infrastructure & Cabling: Demonstrated hands‑on experience racking/stacking servers, patch panel punching, cat6 ethernet cabling, clean cable management, and hardware troubleshooting
Infrastructure as Code: Familiarity with Terraform, Ansible and using those patterns to scale out repeatable systems
Networking Fundamentals: Strong working knowledge of TCP/IP, VLANs, subnetting, DHCP, DNS, and basic CLI network switch configuration (Cisco, Ubiquiti, Juniper, or similar)
Identity & Endpoint Management: Experience with Active Directory, Okta, and modern endpoint management tools
Physical Presence & On‑Site Capability: Ability to work 100% on‑site in Milpitas, CA

Must‑have Requirements:

Ability to lift up to 50 lbs occasionally
Perform activities such as stooping, climbing, standing, sitting for extended periods of time
Willingness to travel or work required nights/weekends/on‑call occasionally
Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics

At CFS, we excel in fast‑paced environments, driven by our values of integrity, execution, impact, and self‑critique. As we grow, we’re eager to bring on mission‑driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

Salary range for this full‑time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations.

Benefits include: