Substation Relay Technician - Testing, Commissioning & Travel

R. R. CASSIDY INC; Texas; On-site; USD 70,000 - 110,000; Full time

Benefits offered by this job

401(k) matching

Medical, Dental, and Vision benefits

PPO, HSA, and FSA plans

Short/Long-term disability

Employee discounts

Job summary

R.R. Cassidy is seeking an experienced Substation Relay Technician to test, maintain, and troubleshoot protective relay systems in electrical substations.

The role requires a strong safety mindset and the ability to lead by example, with duties including testing panels, transformers, and control circuitry, and implementing relay test routines. The position involves traveling, overtime when needed, and working with SCADA/GOOSE/Modbus protocols to ensure system reliability and compliance with

Qualifications

• Experience testing, maintaining, and troubleshooting protective relay systems in substations.
• Ability to lead by example and maintain a strong safety culture.
• Willingness to travel and work overtime when needed.
• Proficiency with relay test software and tools.
• Working knowledge of electrical control circuits and protective relay logic.
• Experience with installation and maintenance of high‑voltage equipment.

Responsibilities

• Promote and model a strong safety culture, including accountability for safety practices of team members.
• Install, commission, test, and perform routine maintenance on protective relaying systems in substations.
• Conduct function testing on relay panels, transformers, breakers, and associated control circuitry.
• Create and follow procedures for testing, commissioning, and maintaining protective devices.
• Develop and execute relay test routines, macros, and verify system performance aligns with design parameters.
• Analyze relay logic, settings, and responses to simulated faults to confirm proper operation.
• Plan and implement testing and isolation procedures for scheduled outages.
• Install and test communication protocols and systems such as SCADA, GOOSE, Modbus, and fiber optics.
• Perform system analysis involving relays, transformers, AC/DC systems, and instrumentation.

Skills

Relay testing experience

Relay test software/tools

Electrical knowledge (control circuits

High voltage equipment experience

Strong written and verbalcommunication

Willingness to travel

Overtime flexibility

Physical ability to lift 70 lbs

Education

Associate or bachelor’s degree in Electrical/Electronic Technology or Engineering

Tools

Relay testing equipment

SCADA/GOOSE/Modbus protocols

Job description

About Us

R.R. Cassidy, a

About Us

R.R. Cassidy, a Quanta Services, Inc. (NYSE:PWR) company, founded in 1975 brings together more than 45 years of hands-on construction expertise and specialized equipment to handle a diverse range of sub-surface and pole setting projects. Our capabilities allow us to perform conventional work, but our focus and expertise are on the projects that present unique challenges.

Our footprint is throughout the southern half of the U.S. with a growing presence in the MidWest and other regions.

Joining our team means being part of an organization that values drive and inclusion. We focus on career development and reward excellence, recognizing each team member's unique contributions. We're at the forefront of powering modern life. Discover how your skills and dedication can make a real difference to us.

About This Role

R.R. Cassidy is searching for an experienced Substation Relay Technician. The Relay Technician is responsible for testing, maintaining, and troubleshooting protective relay systems in electrical substations with minimal supervision. This role involves using specialized relay testing equipment to ensure system reliability and compliance with engineering specifications. A strong safety mindset and the ability to lead by example are essential.

What You'll Do

• Promote and model a strong safety culture, including accountability for safety practices of team members.
• Install, commission, test, and perform routine maintenance on protective relaying systems in substations.
• Conduct function testing on relay panels, transformers, breakers, and associated control circuitry.
• Create and follow procedures for testing, commissioning, and maintaining protective devices.
• Develop and execute relay test routines, macros, and verify system performance aligns with design parameters.
• Analyze relay logic, settings, and responses to simulated faults to confirm proper operation.
• Plan and implement testing and isolation procedures for scheduled outages.
• Install and test communication protocols and systems such as SCADA, GOOSE, Modbus, and fiber optics.
• Perform system analysis involving relays, transformers, AC/DC systems, and instrumentation. Assist in troubleshooting distribution and transmission protection schemes and control issues.
  
  

What You'll Bring

• Valid driver’s license with an acceptable driving record.
• Ability to pass a pre-employment drug screen and criminal background check.
• Willingness to travel and work overtime when needed.
• Practical experience working with protective relay equipment in utility substations.
• Working knowledge of electrical control circuits and protective relay logic.
• Proficiency with relay test software and tools.
• Strong written and verbal communication skills.
• Experience with installation and maintenance of high-voltage electrical equipment such as circuit breakers, switchgear, and transformers.
• Associate or bachelor’s degree in Electrical/Electronic Technology or Engineering.
• Must be able to lift and carry up to 70 lbs.
• Ability to stand, walk, and climb ladders or equipment for extended periods.
• Capable of working in outdoor environments and various weather conditions.
  
  

What You'll Get

As a Quanta Services employee, we offer a wide range of benefits to fit your needs:

• 401(k) with immediate matching and vesting
• Comprehensive benefits packages including Medical, Dental, and Vision
• Choice of PPO, HSA, and FSA plans
• Short-term and long-term disability benefits
• Employee discounts on consumer goods
  
  

Equal Opportunity Employer

All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, national origin or ancestry, sex (including gender, pregnancy, sexual orientation, and/or gender identity), age, disability, genetic information, veteran status, and/or any other basis protected by applicable federal, state or local law.

We are an Equal Opportunity Employer, including disability and protected veteran status.

We prohibit all types of discrimination and are committed to providing access and equal opportunity for individuals with disabilities. For additional information or if reasonable accommodation is needed to participate in the job application, interview, or hiring processes or to perform the essential functions of a position, please contact us the Company’s Human Resources department.