Infrastructure Services Mainframe Supervisor (IT Systems Admin – Senior/Specialist)
State of Washington
Posted: March 6, 2026 (12 days ago)
Added to FreshGovJobs: March 18, 2026 (0 days ago)
This job has been posted for 1-2 weeks. Still a good time to apply.
City of Seattle
Seattle City Light
Location
Seattle, Washington, 98104
Salary
$54.81 - $82.28
per hour
Type
Full-Time
More Other jobs →Closes
This job involves managing and upgrading the computer systems that keep Seattle's power grid running smoothly and securely, including servers, networks, and security measures in power plants and substations.
The role focuses on ensuring these systems are reliable, compliant with regulations, and ready for modern updates to handle electricity distribution efficiently.
It's a great fit for someone with hands-on experience in IT infrastructure who enjoys working with teams in a utility environment to support essential public services.
Seattle City Light, a department of the City of Seattle, is one of the nation’s largest municipally owned utilities in terms of the number of customers served.
Over the years we have worked very hard to keep Seattle's electricity affordable, reliable, and environmentally sound.
Today, City Light is a recognized national leader in energy efficiency and environmental stewardship.
Seattle City Light is currently investing in power grid modernization with multiple OT computer system projects for power grid management and control that address substation, distribution and power plant facility operation and automation.
The OT infrastructure platform is fundamental to successful grid modernization.
City Light OT infrastructure in power plants and substations is in the process of being upgraded and expanded to successfully deliver grid modernization that is planned with the OT/UT Roadmap.
This position supports the staffing resources that are needed for expanding SCL OT infrastructure.
The role of this position is to apply advanced knowledge, skills and practical experience with servers, workstations, networking, data communications, cyber security and NERC Critical Infrastructure Protect (CIP) standards to develop, operate and maintain the highly available 24x7 OT infrastructure that includes:
This position will report to the Manager of OT Infrastructure & Compliance for the Power System Automation (PSA) Unit in the Utility Technology (UT) Division.
As an experienced Infrastructure Integrator, ensure the delivery of supportable and reliable OT infrastructure that meets the SCL required service levels for control and situational awareness.
This role will be responsible for OT implementation as well as operations and maintenance support.
OT infrastructure changes require precise collaboration with OT/UT application teams, control room dispatchers, communications, cyber security, substation and power plant engineering and regulatory compliance stakeholders.
The responsibilities of this position include but are not limited to following duties.
Required Qualifications:
In addition to the skills and experience mentioned below, a successful applicant will have experience that reflects a commitment to creating fair and equitable outcomes and has:
Education:
Bachelor's degree in Engineering, Technology, Computer Science, Technology Management, or a closely related field, or a combination of education and experience which provides an equivalent background required to perform the work.
Experience: At least five (5) years of progressively responsible experience in an Operational Technology Infrastructure environment.
This could include experience in regulatory compliance, information assurance, security operations, systems engineering and security policy development/administration for Operational Technology and/or SCADA system environments, preferably in an electric utility.
License, Certification and Other Requirements
You must hold a current valid state issued driver’s license from any US state to be verified prior to start date. Out of state license holders will be required to obtain a WA state license within 30 days of hire.
Desired Qualifications - You will be successful if you have the following experience, skills, and abilities:
Technical Knowledge Requirements:
Experience with:
Preference will be given for applicants who possess the Desired Qualifications:
Please note this job advertisement is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.
Emergency Response Commitment:
Seattle City Light is committed to reliable service during emergencies.
Through our Emergency Response Program, each employee is assigned a role—usually aligned with their regular duties—to support emergency operations.
Your participation is vital to helping the utility stay prepared and serve our community when it matters most.
The full salary range for this position is $56.81 to $82.28 per hour.
Application Process
Please submit the following with your online application:
Incomplete resumes may not be considered.
Who May Apply: This position is open to all candidates that meet the qualifications. Seattle City Light values diverse perspectives and life experiences.
Applicants will be considered regardless of race, color, creed, national origin, ancestry, sex, marital status, disability, religious or political affiliation, age, sexual orientation, or gender identity.
Seattle City Light encourages people of all backgrounds to apply, including people of color, immigrants, refugees, women, LGBTQIA+, people with disabilities, veterans, and those with diverse life experiences.
Job offers are contingent on the verification of credentials and other information required by the employment process, including the completion of a background check.
The background check will involve a criminal history check, which includes conviction and arrest records in compliance with the Seattle’s Fair Chance Employment Ordinance, SMC 14.17and the City of Seattle Personnel Rule 10.3.
A driving history review may be conducted in compliance with SMC 4.79.020. Applicants will be provided an opportunity to explain or correct background information.
The City of Seattle offers a comprehensive benefits package including vacation, holiday, and sick leave as well as medical, dental, vision, life and long-term disability insurance for employees and their dependents.
More information about employee benefits is available on the City's website at: https://www.seattle.gov/human-resources/benefits/employees-and-covered-family-members/most-employees-plans.
Want to know more about Seattle City Light? Check out our web page: https://www.seattle.gov/city-light/about-us/careers.
Check your resume before applying to catch common mistakes