Programmable Logic Controller Jobs in Phoenix, AZ

Description/Duties This recruitment will be used to fill two (2) vacancies at either the Utilities Systems Analyst I or Utilities Systems Analyst II level. First review of applications will be on Tuesday, February 17, 2026, and weekly thereafter as needed. Utilities Systems Analyst I ($81,814.93 - $118,687.71) A Utilities Systems Analyst I provides technical support for the Utilities Department Supervisory Control and Data Acquisition (SCADA) system

The incumbent's duties include programming, modifying, and testing graphic interfaces for use by the Water Treatment Plant Operators as well as creating and running reports. Other duties include: utilizing advanced graphics and programming concepts, tools, and technologies such as Visual Basic and 3D graphics animation to develop Operator control interfaces; utilizing Programmable Logic Controller (PLC) programming languages such as Ladder, Function Block, Structured Text, and Sequential Function Chart logic to develop control programs; installing, configuring, and maintaining workstations, laptops, and other peripherals both stand alone and connected to the Utilities network; assisting in evaluating hardware, software, and peripherals for new and existing facilities; testing and modifying new and existing applications used for operational interfacing with PLC's; verifying Process and Instrumentation (P&ID) and electrical drawings for accuracy, and verifying that drawings agree with control descriptions and plant specifications; creating SCADA Human Machine Interface (HMI) graphics and associated database; developing and implementing SCADA alarm functions; troubleshooting the system and correcting problems; developing daily, weekly, monthly, and yearly reports as required by management and plant personnel; and developing SCADA documentation and performing related duties as required. Incumbents are required to carry out assignments without detailed instruction or guidance.

The Utilities Systems Analyst I differs from the Utilities Systems Analyst II because of the development work that is performed by the latter in the creation of programs for new plants/sites and PLC programming. This class is FLSA exempt-computer professional. Utilities Systems Analyst II ($90,180.90 - $130,824.93) A Utilities Systems Analyst II is responsible for ensuring the security, integrity, and availability of industrial control systems within the City

This includes monitoring, managing, and securing the network and systems that control critical industrial operations and requires expertise in both Information Technology (IT) and Operational Technology (OT) security practices, as well as an understanding of the specific needs and risks related to Industrial Control Systems (ICS). The incumbent provides technical support and expertise in programming of the Supervisory Control and Data Acquisition (SCADA) system; develops programs, installs upgrades, maintains, and repairs the Programmable Logic Controls (PLC) at the Water Treatment Plants, pump stations, wells, lift stations, and sulfide treatment stations using Function Block Programming and Human Machine Interface (HMI) design; develops, creates, modifies, and tests graphic interfaces for use by the Utility Control Center and Plant Operators; evaluates, tests, and reviews vendor products; assists in installing, maintaining, troubleshooting, repairing, and modifying SCADA system hardware and software (examples: Ethernet networks, servers, workstations, routers, switches, network communication devices, and PLCs); verifies Process and Instrumentation (P&ID) and electrical drawings for accuracy, and verifies that drawings agree with control descriptions and plant specifications; interfaces with engineers, contractors, vendors, and City personnel to determine how PLC software should control the plant and what type of HMI is needed; maintains documentation regarding SCADA network; and develops daily, weekly, monthly, and yearly reports as required by management and plant personnel. The Utilities Systems Analyst II classification provides on- call support during non-business hours including evenings, weekends, and holidays and performs related duties as required.

Incumbents are required to carry out assignments without detailed instruction or guidance. The Utilities Systems Analyst II differs from the Utilities Systems Analyst I because of the development work that is performed in the creation of programs for new plants and sites. The Utilities Systems Analyst II class differs from the Utilities Systems Analyst III by the latter having a greater involvement in the network architecture and broader scope of knowledge.

This class reports to a Utilities Control Systems Supervisor who reviews work through reports, conferences, and the evaluation of results achieved. This class is FLSA exempt-computer professional. Please refer to the link below for the full job description and additional information regarding assignments, preferred qualifications, and essential functions.

Qualifications & Requirements Employee Values: All employees of the City of Mesa are expected to uphold and exhibit the City's shared employee values of Knowledge, Respect, and Integrity. Utilities Systems Analyst I Minimum Qualifications Required. Any combination of training, education, and experience equivalent to graduation from an accredited college or university with an Associate's Degree in Computer Science, Information Technology, Engineering, or related field.

Good (1 - 3 years) work experience in information systems, including work with SCADA or Utility Network experience. Special Requirements. Must possess a valid Class D Arizona Driver's License by hire or promotion date.

Substance Abuse Testing. Due to the safety and/or security sensitive nature of this classification, individuals shall be subject to pre-employment or pre-placement alcohol, drug and/or controlled substance testing as outlined in City policy and procedures. Preferred/Desirable Qualifications.

Experience in the installation, maintenance, calibration, and repair of electronic (solid-state) controls, instrumentation, and related equipment is highly desirable. Utilities Systems Analyst II Minimum Qualification(s) Required. Any combination of training, education, and experience equivalent to graduation from an accredited college or university with an Associate's Degree in Computer Science, Information Technology, Engineering, or related field.

Considerable (3 - 5 years) work experience in information systems including work with SCADA or Utility Network experience. Special Requirement(s). Must possess a valid Class D Arizona Driver's License by hire or promotion date.

Substance Abuse Testing. Due to the safety and/or security sensitive nature of this classification, individuals shall be subject to pre-employment or pre-placement alcohol, drug and/or controlled substance testing as outlined in City policy and procedures. Preferred/Desirable Qualification(s).

Experience in the installation, maintenance, calibration, and repair of electronic (solid-state) controls, instrumentation, and related equipment is highly desirable. Link to Job Description Utilities Systems Analyst I https://apps.mesaaz.gov/jobdescriptions/Documents/JobDescriptions/cs4727.pdf Utilities Systems Analyst II https://apps.mesaaz.gov/jobdescriptions/Documents/JobDescriptions/cs4980.pdf