Signal Technician

City-of-Carrollto; Trinity Mills (TX); On-site; USD 52,000 - 76,000; Full time

Job summary

City of Carrollton is seeking a Technician to assist in installing, repairing, and maintaining electronically controlled traffic signals, street lighting, and school zone flashers. The role responds to emergencies and requires working with limited supervision.

Candidate must have basic electronics knowledge, good problem-solving skills, and the ability to read schematics and blueprints. A high school diploma and related experience are required, with potential for certification-based advancement.

Qualifications

• High School Diploma or GED required.
• One year of related traffic signal installation experience required.
• Equivalent combinations of education/experience accepted.
• Preferred certifications listed in the job posting are a plus.

Responsibilities

• Performs line locates for underground traffic signal and lighting equipment.
• Assists with inventorying materials and equipment.
• Maintains and repairs traffic signal components and lighting.
• Programs and places message boards for events or emergencies.
• Installs and repairs traffic signal equipment and school zone flashers.
• Inspects signals at intersections for proper operation.
• Responds to trouble calls and documents resolutions.
• Reads plans, schematics, NEC and MUTCD.
• Maintains daily work and maintenance records.
• Works with Supervisor to implement safe work procedures.

Skills

Basic electronics

Electrical troubleshooting

Reading schematics/blueprints

Problem solving

Computer & software usage

Safety awareness

Traffic signal systems knowledge

Reading and interpreting MSDS/NEC/MUTC

Education

High School Diploma or GED

1 year traffic signal installation experience

Tools

Schematics & blueprints tools

Job description

Job Description

Posted Tuesday, April 14, 2026 at 6:00 AM

DEPARTMENT/DIVISION: Public Works

REPORTS TO: Traffic Operations Supervisor

SUMMARY: Responsible for assisting in the installation, repair, and maintenance of electronically controlled traffic control devices, arterial street lighting and school zone flashers; responds to emergency situations regarding signals, flashers and downed stop signs; assists in training signal crew members. Work is performed with limited supervision.

ESSENTIAL JOB FUNCTIONS:

• Performs line locates for underground traffic signal and lighting equipment as needed.
• Assists with the inventorying of materials and equipment.
• Assists with performing maintenance on message boards, generators and other traffic signal and control equipment as needed.
• Programs and places message boards for special events or emergencies, as needed.
• Assists in the installation, troubleshooting and repair of school zone flashers and City-owned and maintained street lighting.
• Installs, troubleshoots and repairs traffic signal equipment.
• Inspects traffic signal equipment at operational intersections to ensure signals and school zone flashers are operating as programmed.
• Assists with responding to trouble calls on equipment malfunctions; identifies problem; repairs or replaces faulty equipment; documents trouble call and problem resolution
• Routinely patrols streets to identify traffic signals that may need repair.
• Assists with performing routine maintenance on traffic control devices and other equipment.
• Reads and interprets product safety data sheets, plans, schematics, blueprints and other diagrams; such as technical manuals, NEC and MUTCD.
• Replaces parts such as load switches, relays and flashers and documents process.
• Makes recommendations and carries out plans with Supervisor approval.
• Implements safety procedures at job sites.
• Performs manual traffic and pedestrian counts.
• Completes work orders summarizing daily work tasks.
• Cleans work sites and restores landscaping to original condition upon project completion.
• May be required to remove debris, fallen trees and limbs; replace streets signs during or after hazardous weather or other emergencies.
• Prepares and maintains a variety of daily work, maintenance history and work order records related to division repairs and operational activities.
• Participates in training signal crew members on work procedures and practices.
• Participates in/on a variety of meetings, committees, and/or other applicable groups to receive and/or convey information.
• Responds to emergency and on-call situations.
• Performs other duties as assigned.

KNOWLEDGE, SKILLS, AND ABILITIES:

• Knowledge of basic electronic and electrical principles
• Knowledge of safe work methods
• Skilled in reading and interpreting schematics and blueprints
• Skilled in troubleshooting and resolving problems related to traffic signals and roadway lighting.
• Knowledge of electrical codes, electronic circuits and circuit logic.
• Knowledge of the Manual of Uniform traffic Control Devices.
• Skilled in applying independent judgment, personal discretion, and resourcefulness in interpreting and applying guidelines
• Skilled in operating applicable tools and equipment of the trade
• Skilled in performing routine repair and maintenance activities
• Skilled in performing basic construction activities
• Skilled in performing manual labor
• Skilled in observing safety rules and regulations
• Skilled in operating a computer and related software applications
• Skilled in communicating effectively with a variety of individuals
• Able to read and interpret schematics, blueprints, and other diagrams; such as technical manuals, NEC and MUTCD.
• Skilled in in troubleshooting and resolving electronics related problems.
• Skilled in oral and written communication
• Skilled in basic mathematical calculations
• Skilled in planning and coordinating work site activities
• Ability to maintain accurate and complete records
• Ability to change ballast, capacitors, bulbs and fuses in roadway lighting.
• Ability to work with voltages that vary 120/240, 240/480, & straight 480
• Must be able to identify colors

MINIMUM QUALIFICATIONS:

• High School Diploma or G.E.D
• One year of related traffic signal installation experience

OR

• An equivalent combination of education, experience and training that provides the required knowledge, skills and abilities.

PREFERRED

• Work Zone Safety Certification
• IMSA Signals Level I
• Class A CDL

WORKING CONDITIONS:

• Frequent climbing, balancing, reaching, sitting, standing, walking, stooping, kneeling, crouching, talking, seeing, hearing, driving and manual dexterity.
• Occasional lifting and carrying of over 100 pounds.
• Work is typically performed in standard office and outdoor environments, with potential exposure to adverse weather conditions.
• Work is performed in high and precarious places and near moving mechanical parts.
• Must be able to work in a bucket truck at heights up to 60'.
• Potential exposure to risk of electrical shock, vibration, fumes and airborne particles.
• Regular and consistent attendance for assigned work hours, on call and overtime is essential.

CONDITIONS OF EMPLOYMENT:

• Must possess a valid motor vehicle driver license.
• Must pass pre-employment drug test.
• Must pass criminal history check.
• Must pass motor vehicle records check.
• Class A CDL within 6 months of employment
• Work Zone Safety Certification within 1 year of employment
• IMSA Signals Level I Certification within 1 year of employment