Human Machine Interface Jobs (NOW HIRING)

Salary : $74,950.72 - $88,181.60 Annually
Location : One Government Center, Toledo, OH
Job Type: Full-Time
Job Number: 2026-00132
Department: Public Works
Division: Water Treatment
Opening Date: 07/02/2026
Closing Date: Continuous
Description
*** Positions available at multiple divisions ***
POSITION SUMMARY:
The Systems Specialist is responsible for the operation, maintenance, and oversight of the Water Treatment and/or Water Reclamation Plant(s) distributed control network of Programmable Logic Controllers (PLC), Supervisor Control and Data Acquisition (SCADA) system, Human -Machine-Interface (HMI) devices, Variable Frequency Drives (VFDs), databases, data communications systems, telemetry, and other automated processes. Under direction performs work of considerable difficulty in organizing, analyzing and controlling computer operating systems software, database systems software, and related libraries to facilitate the automation of water treatment and/or water reclamation operations performs related work as required.
ESSENTIAL JOB FUNCTIONS:

• Operates and maintains automation systems for the Division of Water Treatment and/or Water Reclamation's treatment plant (Plant) distributed control network of Programmable Logic Controller (PLC) processors, SCADA computers, Human Machine Interface (HMI) devices, Variable Frequency Drives, (VFDs), databases, data communications systems, and other automated processes.
• Troubleshooting, repair, and/or replacement of complex electrical & electronic controls, relay logic, instrumentation, process meters, gas detectors, and their associated interaction with PLC's (including the division's distributed control network and the electrical grid (including the Plant's backup electrical generation system)
• Develops, writes, and implements software policies and procedures to preserve the system's integrity
• Assists in preparing and monitoring budget
• Installs new versions of system software and implements hardware upgrades to maintain system current with industry standards
• Implements tables, table spaces and procedures pertaining to the file management of databases and operating systems files
• Performs and/or manages upgrades and new installations
• Implements application and database security arrangements to control access to user data and applications programs
• Oversees cyber-security
• Develops and maintains documentation of system configurations
• Maintains function and upgrades of security camera and Plant access systems
• Purchases and writes proposals and cost justifications for software acquisitions
• Tunes and configures operating systems and database systems
• Performs capacity planning to determine what hardware and software changes are needed to provide better service
• Reviews new products and determines future feasibility
• Determines long-term needs to drive strategic planning
• Schedules and prioritizes jobs and they relate to the utilization of computer resources
• Answers end-users questions to specific problems and provides information about system capabilities
• Provides technical information to answer programmers' questions about software problems
• Trains users in how to physically operate equipment to ensure proper operation
• Interfaces with software and hardware vendors to acquire current releases and system corrections.

REQUIRED KNOWLEDGE, SKILLS AND ABILITIES:
Knowledge of:

• automation systems, PLC's, SCADA systems, Human -Machine-Interfaces, switches and instrumentation devices, VFD's, databases, data communications systems, telemetry, and other automated processes.
• computer conde configuration scripts and PLC ladder logic.
• Microsoft Office (Excel, Access, Word), multiple web browsers, the internet and intranets,
• treatment plant processes
• hand tools and measuring devices used in the troubleshooting of electrical and electronic circuitry, fiber optic cables, CAT6 communication cables & wireless radio telemetry systems.
• operating systems and installation procedures
• database systems and installation procedures
• software design
• hardware systems
• systems interrelationships
• local area networks
• backup and recovery procedures.
• water treatment and water reclamation operations and maintenance

Skill in:

• analyzing and correcting computer hardware and software problems
• verbal and written communication
• operating a personal computer
• writing computer programs and system interfaces

Ability to:

• scan and interpret vast quantities of computer code, configuration scripts, and PLC ladder logic in a timely manner
• establish and maintaining effective working relationships with others
• type 30 WPM

REQUIRED EDUCATION, EXPERIENCE, AND CERTIFICATIONS:

• Graduation from an accredited college or university with an Associate's' s Degree in Computer Science, Electrical Engineering, Industrial Automation & Electronics, Robotics, or a closely related area
• Three (3) years of responsible experience in programmable logic controller (PLC) programming, design, installation, or troubleshooting and communications in a distributed control network environment of PLC processors, SCADA systems, network routers & gateways and telecommunications in an industrial environment
• Must possess a Class I Water Supply or Water Reclamation Professional Operator license or Operator in Training certification or an equivalent certification from another state within one (1) year of appointment*.

*An applicant with an equivalent certification from another state must obtain reciprocity from the State of Ohio EPA before their application will be considered.
PREFERRED EDUCATION, EXPERIENCE AND CERTIFICATIONS:

• Prior experience working at a large (>10 MGD, maximum design flow) water or wastewater treatment plant is preferred

PHYSICAL DEMANDS:
The physical demands described within this job description must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
The incumbent will be frequently required to use various office equipment (e.g. computer, fax machine, telephone) as well as a variety of hand and power tools for working with electrical equipment around the plant. The incumbent will frequently stand and walk around the plant with the occasional need to drive a company vehicle to various sites. The incumbent must be comfortable working at heights including being lifted in a boom truck and climbing a 100 foot water tower. Th incumbent will be required to reach, stoop, twist, kneel and otherwise physically maneuver to reach equipment as needed. color vision, seeing and hearing are essential abilities for this position.
WORK ENVIRONMENT:
The work environment described within this job description will be encountered while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
The incumbent will primarily work indoors with occasional need to work outdoors or travel to various worksites around the plant. The incumbent will occasionally encounter slippery surfaces, low to moderate background noise, fumes, or odors as well as various high or low temperatures and cramped workplaces around the various areas of the Plant. The incumbent may be exposed to some hazardous materials or electrical equipment and will need to use personal protective equipment such as gloves when handling such materials. The position will frequently require availability to work extended work hours.
If you need assistance or an accomodation, or if you have questions about completing the online application, please contact the Department of Human Resources at (419) 245-1500.
Class Code: System Specialist (1456)
The City of Toledo provides excellent health and retirement benefits for its employees.
Health Insurance
The City of Toledo is a self-funded medical plan provider that offers a broad network of health services options for its employees. The City also offers a multi-tiered prescription drug plan and dental and vision care services.
Employees are required to pay a monthly premium depending on the employee's selection of single, single plus one, or family coverage. Coverage is also afforded for qualifying domestic partners, depending on the employee's bargaining unit. Monthly co-premiums are determined by collective bargaining agreement or Municipal Code.
Group Life Insurance
City employees are covered by a group life insurance plan depending on collective bargaining agreement or Municipal Code.
Ohio Public Employees Retirement Plan
The City is a member of the Ohio Public Employees Retirement Plan (OPERS). All employees who are paid in whole or in part by the state of Ohio, a county, municipality, or any other political subdivision of state or local government in Ohio must become members of OPERS unless they are covered by another state retirement system in Ohio.
OPERS is a pension plan providing fixed retirement benefits every month based on a formula that rewards years of service. The City contributes 14.00% of the employee's annual base salary and employees contribute 10.00% of their annual base salary.
For more information about OPERS, click on this link: https://www.opers.org/
Deferred Compensation & 401(K)
The City of Toledo offers a voluntary governmental 457(b) deferred compensation plan, which is a retirement savings plan that allows eligible employees to supplement any existing retirement/pension benefits by saving and investing pre-tax dollars through salary deferral.
Contributions and any earnings are tax-deferred (both federal and state income taxes) until money is withdrawn. Withdrawals are taxed at ordinary income levels.
For more information about the Ohio Deferred Compensation click on this link: https://www.ohio457.org/iApp/tcm/ohio457/index.jsp
401(k)
The City of Toledo offers a voluntary pre-tax savings contributions retirement plan. The plan is commonly referred to as a 401(k).
Under the 401(k) plan, an employee's retirement savings contributions are deducted from the employee's paycheck before taxation. The City does not make contributions on the employee's behalf. (Contributions are tax-deferred until withdrawn during retirement). Annual contributions to the 401(k) plan are limited to a maximum pre-tax annual contribution, as established by Internal Revenue Service regulations.
Roth 401(k)
The City of Toledo also offers a voluntary post-tax savings contributions retirement plan. This plan is commonly referred to as a Roth 401(k) Plan.
Under a Roth 401(k) Plan, an employee's retirement savings contributions are deducted from the employee's paycheck on a post-tax basis. Annual contributions to the Roth 401(k) plan are limited to a maximum post-tax annual contribution, as established by the Internal Revenue Service.
01
What is your highest level of education?

• Doctorate or Professional Degree
• Master's Degree
• Bachelor's Degree
• Associate's Degree
• Some College
• High School Diploma or G.E.D.
• 11th Grade
• 10th Grade
• 9th Grade
• 8th Grade
• None of the above

02
If you have an Associate's Degree, or higher, please list the major and any concentrations of your degree.
03
Please briefly describe your experience with the design, installation, and troubleshooting of communications in a distributed control network environment of PLC processors, SCADA systems, network routers & gateways in an industrial environment.
Required Question