Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Relay Technician - Utility & High-Voltage Protection - Union

Asplundh Electrical Testing, LLC

Description

About the Role

At Asplundh Electrical Testing , safety is not a priority—it is our foundation. The Senior Relay Technician plays a critical role in ensuring the safe, reliable operation of medium‑ and high‑voltage utility substations through advanced protective relay testing, commissioning, and maintenance activities.

This position is ideal for professionals with a utility background who have hands‑on experience testing and commissioning transmission and distribution protection systems . You will serve as a technical lead in the field, guide crews through complex outage work, and reinforce Asplundh’s reputation for safety, precision, and service excellence.

We are experiencing strong growth and are immediately hiring Senior Relay Technicians with deep expertise in protection and control, relay schemes, and substation energization . If you enjoy solving complex protection challenges, leading safe work execution, and influencing system reliability at scale, we’d like to speak with you.

As a NETA‑accredited, independent electrical testing and engineering organization , Asplundh Electrical Testing sets the benchmark for technical excellence and unwavering safety across the utility, renewable energy, data center, and industrial sectors .

Candidates must be authorized to work in the United States for any employer at the time of hire. This position is not eligible for visa sponsorship.

What You’ll Do

  • Lead job briefings and safety tailboards, reinforcing a “Safety First, Always” field culture
  • Perform protective relay testing, calibration, troubleshooting, and commissioning on medium‑ and high‑voltage systems
  • Test and validate transmission and distribution protection schemes , including:
    • Distance, differential, overcurrent, breaker failure, and bus protection
  • Verify control and protection circuits for:
    • Power transformers
    • Medium‑ and high‑voltage circuit breakers
    • Feeder relays
    • Capacitor banks and reactors
  • Support outage planning, switching coordination, energization, and restoration activities
  • Perform event analysis, relay target review, and disturbance investigations
  • Lead and mentor onsite technicians; coordinate work execution with project managers, system operators, and utility customers
  • Create and maintain accurate test reports, as‑left settings, and field documentation
  • Participate in job walks, project estimating, and customer technical discussions
  • Serve as a technical resource and trainer for developing relay technicians

Travel Requirements:
Work is performed at customer sites throughout the assigned region. Regular regional travel is required, with opportunities for extended assignments outside the region as needed.
✔ Company vehicle provided for regional work‑related travel.

What You Bring
  • 5+ years of hands‑on experience in protective relaying for utility substations
  • Demonstrated experience testing medium‑ to high‑voltage (5kV–500kV) protection systems
  • Strong working knowledge of microprocessor‑based relays
  • Experience with modern relay test platforms
  • Solid understanding of utility safety rules, energized work practices, and lockout/tagout procedures
  • Ability to interpret:
    • Protection diagrams
    • AC/DC schematics
    • Wiring and logic drawings
  • Valid driver’s license; ability to work outdoors, travel, and lift up to 70 lbs
Education & Credentials
  • NETA Level III or IV Certification preferred for Senior roles
    (Candidates at other NETA levels are encouraged to apply for opportunities across the organization)
  • Experience with:
    • Circuit breakers
    • Power transformers
    • Switchgear
    • RTUs and substation communications
  • Technical degree, apprenticeship, or military electrical training
  • OSHA 10 or OSHA 30
  • Valid driver’s license with a clean driving history

What We Offer

At Asplundh Electrical Testing, we invest in the well‑being of our people. Eligible employees enjoy a comprehensive benefits package designed to support their health, financial security, and work‑life balance, including:
  • Medical, dental, and vision coverage starting on day one
  • Retirement plan to help you secure your future
  • Company‑provided life insurance for added peace of mind
  • Supplemental life insurance options, including spouse and child coverage
  • A variety of voluntary Aflac supplemental insurance programs
  • Long‑term disability coverage
  • Pre‑paid legal plan
  • Employee Assistance Program (EAP) to support personal and professional well‑being
  • Paid time off to recharge and refresh
  • Paid holidays
  • Access to employee discount programs and helpful resources
*Benefits listed above are available to eligible employees. Eligibility requirements and plan provisions apply

Please note:   For roles that fall within union‑represented territories, certain benefits and employment terms may differ from what’s listed here. In those cases, the applicable local union agreement will guide the specific benefits and provisions. We’re committed to transparency and will walk you through what applies to your location during the hiring process.

Who We Are

Asplundh Electrical Testing (AET) has been a leading provider of independent electrical testing services since 1981. Headquartered in Foxboro, MA, with regional offices across the country, AET specializes in substation commissioning, acceptance testing, and maintenance for clients in electrical transmission, distribution, and generation. As a NETA-certified company and a member of Asplundh Engineering Services—a subsidiary of Asplundh Infrastructure Group—AET is committed to delivering reliable, high-quality services at competitive prices.

An Asplundh Company

As part of the Asplundh family, AET benefits from extensive resources and a century of experience. Together, we provide utilities with comprehensive end-to-end services, from design to construction, testing, and maintenance, ensuring reliability and peace of mind.

Our Commitment

At AET, we believe in tackling challenges together with our customers, leveraging our collective experience and resources to achieve success in every project.




Benefits
We offer a competitive range of benefits to support our employees’ health, well-being, and financial security. Medical, dental, and vision benefits are available to all eligible employees on the first day of employment. For more information on the benefits available for this role, please contact the recruiter or hiring manager.

Individuals with a disability who desire a reasonable accommodation can contact the ADA Coordinator by calling View phone number on click.appcast.io. We partner with the Department of Homeland Security/U.S. Customs and Immigration Service to e-Verify all newly hired employees.

An Equal Opportunity Employer.

Please note:
  • All job offers are subject to pre-employment drug screening and a background check.
  • Unless otherwise noted, we do not sponsor employees for work authorization in the U.S. for this position.
Notice to Agencies: We only accept resumes from recruiters, employment agencies, or staffing services if a Service Agreement has been signed and we have requested recruitment/staffing services for the specific position. Any unsolicited resumes will become the property of the company, and no fees or compensation will be paid to the recruiter, employment agency, or staffing service.
Vacancy posted 12 hours ago
Similar jobs that could be interesting for youBased on the Senior Relay Technician - Utility & High-Voltage Protection - Union in Los Angeles, CA vacancy
  •  ..., safety is not a priority—it is our foundation. The Senior Relay Technician plays a critical role in ensuring the safe, reliable operation of medium‑ and high‑voltage utility substations through advanced protective relay testing, commissioning, and maintenance activities... 
    Union
    Senior
    Apprenticeship
    Immediate start

    Asplundh Careers

    Los Angeles, CA
    3 days ago
  • Asplundh Electrical Testing is seeking a Senior Relay Technician to lead testing, commissioning, and maintenance of protection systems in medium- and high-voltage substations. You’ll guide crews through outages and mentor onsite technicians while ensuring safety and quality... 
    Senior

    Asplundh Engineering Services, LLC

    Los Angeles, CA
    1 day ago
  • $71.75k - $107.62k

     ...maintenance execution, solve complex utilities and equipment, and mentor...  ...utilities. Education: High School Diploma/GED, associate...  ...up to site-authorized voltage, reading P&IDs/schematics/single...  ...candidates, regardless of their protected characteristics. If you have... 
    Senior
    Hourly pay
    Temporary work
    Apprenticeship
    Shift work
    Afternoon shift

    AstraZeneca

    Los Angeles, CA
    12 hours ago
  • $113k - $141.53k

     ...Engineering Department, the High Voltage Engineering team...  ...position is open to non‑senior candidates who are...  ...Interconnection Providers (utilities) to design collector...  ...‑CADD Experience in relay system testing. Experience...  ...other characteristic protected under applicable law.... 
    Senior
    For contractors
    Remote work
    Worldwide

    AES Corporation

    Los Angeles, CA
    2 days ago
  •  ...Traffic Control Technician Connecting People to Possibility...  ...leads the way in utility and energy infrastructure...  ...safety precautions to protect motorists and construction...  ...You'll Have ~ High School diploma or equivalent...  ...Join and maintain Union membership Our Commitment... 
    Union
    Permanent employment
    Temporary work
    For contractors
    Local area

    CENTURI CONSTRUCTION GROUP Inc

    Glendale, CA
    1 day ago
  • $140k - $200k

     ...underground tunnels to high altitude balloons. Silvus...  ...skilled and motivated Senior R&D Systems Engineer to...  ...Management: Utilize modern requirements management...  ...expression, marital, civil union or domestic partnership...  ...or mental disability, protected veteran status, genetic... 
    Union
    Senior
    Permanent employment
    Work at office
    Local area
    3 days per week

    Silvus Technologies

    Los Angeles, CA
    2 days ago
  • $140k - $200k

    Senior R&D Software Engineer - Networked Electronic Warfare THE COMPANY...  ...from underground tunnels to high altitude balloons. Silvus...  ...or expression, marital, civil union or domestic partnership status...  ...physical or mental disability, protected veteran status, genetic information... 
    Union
    Senior
    Local area
    Remote work

    Silvus Technologies

    Los Angeles, CA
    1 day ago
  •  ...Description Job Description Senior Field Service Technician  WET (Design) / WET...  ...power distribution and protection Programmable logic...  ...transformers, contacts, relays, fuses, circuit protection...  ...maintenance, and repair of high voltage induction and synchronous... 
    Senior
    Apprenticeship

    WET

    Los Angeles, CA
    5 days ago
  •  ...Position Overview The Senior Manager, Wayside...  ...of various union contracts for compliance...  ...or the ability to utilize an alternative...  ...including AC and DC high/low voltage systems, substations, rectifiers, relays, overhead catenary...  ...training and/or use of protective devices and... 
    Union
    Senior
    Contract work
    For contractors
    Work at office
    Local area
    Shift work
    Weekend work

    Los Angeles County Metropolitan Transportation Authority (CA...

    Los Angeles, CA
    2 days ago
  • $35 - $60 per hour

     ...Electrical Field Service Technician NETA II / III / IV | NICET EPT | or Equivalent...  ...testing of medium- and high-voltage equipment across utility, industrial, and data center environments...  ...Circuit breakers Protective relays and protection systems Execute... 
    Hourly pay
    Daily paid
    Traineeship
    Monday to Friday

    Step Up Recruiting

    Los Angeles, CA
    3 days ago
  • $175k - $200k

     ...Design and size medium voltage electrical systems for...  ..., drives, and protection devices considering efficiency...  ...of digital protection relays. Size and specify...  ...reactive power planning for utility interconnection....  ...teamwork skills. ~ Highly self-motivated with the... 
    Senior
    Flexible hours

    Critical Energy Systems

    Hawthorne, CA
    1 day ago
  • $25 - $35 per hour

     ...experienced Field Service Technician responsible for...  ...this role requires a high level of productivity...  ...Demonstrate proficiency in low voltage (LV) and high voltage...  ...the use of personal protective equipment from the...  ...Kingdom, and the European Union and in the cloud, and... 
    Union
    Hourly pay
    Contract work
    Local area
    Remote work
    Night shift

    XOS

    Los Angeles, CA
    4 days ago
  • $25.88 - $38.1 per hour

     ...and a desire to protect it for future...  ...Field Service Technician who will support...  ...and accessories. Utilize available...  ...provide feedback to senior technicians or...  ...spirit and maintain high-quality work...  ...Skills Low Voltage & Electrical Systems...  ...the European Union and in the cloud... 
    Union
    Hourly pay
    Full time
    Contract work
    Temporary work
    Part time
    Work experience placement
    Local area
    Remote work
    Shift work
    Night shift
    Afternoon shift
    Early shift

    Rivian

    Los Angeles, CA
    3 days ago
  •  ...Senior Instrumentation & Controls Engineer - West Region Business...  ...Assessments and Master Plans to advise utilities on how best to upgrade or...  ...plan and the B&V Credit Union. Professionals may also be...  ...veteran status, pregnancy status or other status protected by law.... 
    Union
    Senior
    For contractors
    Work experience placement
    Work at office
    Local area
    Remote work
    Flexible hours

    Black & Veatch

    Los Angeles, CA
    1 day ago
  • $104.31k - $139.08k

     ...79 FLSA Exempt / Union Represented This...  ...Client Trust Account Protection Program (CTAPP),...  ...the Role The CTAPP Senior Accountant plays...  ...duties. Duties involve highly complex and...  ...financial systems utilizing a variety of professionally...  .... Receive and relay detailed... 
    Union
    Senior
    Contract work
    For contractors
    Work at office
    Remote work
    Flexible hours

    State Bar of California

    Los Angeles, CA
    12 hours ago
  •  ...Service Power Generation Technician/Mechanic to join our...  ...maintenance/repairs utilizing diagnostic tools Maintain...  ...abilities. High Voltage / Low Voltage experience...  ...origin, age, religion, union affiliation, sexual orientation...  ..., or other status protected by law. Job Info... 
    Union
    Apprenticeship
    Work experience placement
    Relocation package

    Cummins

    Santa Fe Springs, CA
    2 days ago
  •  ...Compliance Expert! Cathodic Protection Technician Launch Your Career....  ...sites, and become part of a highly specialized field that is always...  ...advancement opportunities into senior technical or leadership...  ...a plus. Familiarity with DC voltage or Ohm's Law is helpful, but... 
    Daily paid
    Seasonal work

    Tanknology

    Glendale, CA
    12 hours ago
  •  ...revenue, Centuri leads the way in utility and energy infrastructure...  ...leadership What You'll Have High School Diploma or equivalent...  ...card Join and maintain Union membership Our Commitment to...  ...disability, or any other status protected by federal, state or local law... 
    Union
    For contractors
    Local area

    NPL Construction

    Glendale, CA
    3 days ago
  • $32 - $45 per hour

     ...Fire Alarm Service Technician We are seeking a skilled Fire Alarm...  ...experience with programming low voltage systems including fire alarm,...  ...a ladder, scaffolding and high lift equipment up to 60 feet,...  ...veteran status, disability, protected medical condition as defined... 
    Senior
    Weekly pay
    For contractors
    Local area
    Flexible hours

    HCI Systems

    Pasadena, CA
    1 day ago
  • Boutique Recruiting is seeking a Senior Tenant Improvement Superintendent in Los Angeles. This role involves overseeing some of the most...  ...track record in project management, and an existing network of union subcontractors. This position offers a dynamic culture, a standard... 
    Union
    Senior
    For subcontractor

    Boutique Recruiting

    Los Angeles, CA
    2 days ago
  • $36 - $39.89 per hour

     ...function and procedures. Utilizes correct lead placement for...  .... Answers telephone and relays messages. Establishes and...  ...: Regular Employee Group/Union Affiliation: B01|SEIU|Local...  ...veteran status, or any other protected characteristic or status. For... 
    Union
    Work experience placement
    Work at office
    Local area
    Shift work

    Kaiser Permanente

    Los Angeles, CA
    2 days ago
  •  ...Senior Mechanical Assembler WET (Design) – Burbank, CA At WET...  ...proper termination, labeling, and protection Perform plumbing and pipe...  ...technical documentation ~ High level of proficiency with hand...  ...this for pay transparency, union/non-union alignment, or tweak... 
    Union
    Senior

    WET Design

    Burbank, CA
    4 days ago
  • $32.47 - $35.81 per hour

     ...supervisors, leads and seniors. Assume other activities...  ...Education ~ High school diploma or...  ...Registration ~ Phlebotomy Technician II Certificate (...  ...Employee Group/Union Affiliation: B01|SEIU|...  ...veteran status, or any other protected characteristic or status... 
    Union
    Work experience placement
    Work at office
    Local area
    Shift work
    Afternoon shift

    Kaiser Permanente

    Los Angeles, CA
    3 days ago
  • $39.69 per hour

     ...Saturday, 9pm start Benefits: Union, Medical, Dental, Vision,...  ...The Maintenance Mechanic utilizes work orders for the requisition...  ...Education and Experience: ~ High School Diploma or General Education...  ...status, or any other basis protected by applicable law. In addition... 
    Union
    Hourly pay
    Full time
    Immediate start
    Shift work

    Reyes Beverage Group

    Los Angeles, CA
    3 days ago
  • $20.44 - $30.65 per hour

     ...Description Sr. Specimen Technician - Hospital - Los...  ...Associate, Senior is responsible for...  .../tracking data utilizing all available reports...  ...laboratory. Relays client concerns to...  ...Education ~ High School Diploma or...  ...Disability/Vets or any other legally protected status.
    Senior
    Full time
    Part time
    Work experience placement
    Work at office
    Remote work
    Monday to Friday
    Flexible hours

    Quest Diagnostics Incorporated

    Los Angeles, CA
    12 hours ago
  • $23 per hour

     ...bargaining agreement. This is a union position, and as such will...  ...spaces assigned to technician. Maintain an energy management...  ...MINIMUM REQUIREMENTS: ~ High School diploma or equivalent...  ...any trait or characteristic protected by applicable federal, state,... 
    Union
    Hourly pay
    Full time
    Local area

    ABM Industries

    Los Angeles, CA
    2 days ago
  • $34.65 - $42 per hour

     ...Central Office (RT/CO) facilities. Utilize company‑assigned electronic...  ...experience. Education High school diploma required. Preferred...  ...bargaining unit and represented by a union; union membership and/or dues...  ..., or any other characteristic protected by federal, state, or local... 
    Union
    Hourly pay
    Permanent employment
    Full time
    Temporary work
    For contractors
    Work at office
    Local area
    Remote work
    Work from home
    Shift work
    Weekend work

    Page Mechanical Group Inc

    Glendale, CA
    3 days ago
  •  ...industry is seeking an Interim Senior Accountant to support the...  ...revenue accounting experience highly desired. EEO Notice Vaco by Highspring...  ..., status as a veteran, union membership, ethnicity, gender,...  ...political affiliation, or any other protected characteristics as required by... 
    Union
    Senior
    Interim role
    Local area

    Vaco

    El Monte, CA
    4 days ago
  •  ...Location Meadow Glen - 4201 W Union Hills Drive Business We...  ...for you! The Maintenance Technician skilled requirements within...  ...~ This position requires a High School Diploma/GED. 3-4 years...  ...Employer: Minorities/Religion/Sex/Protected Veterans/Disability/Sexual... 
    Union
    Live in
    Weekend work

    Brookfield Properties

    Glendale, CA
    7 days ago
  • $65k - $90k

     ...power national ambitions and enable a high-energy society. We were incubated by Founders...  .... About This Role We’re looking for a Senior Helpdesk Technician to support our growing team in a fast‑...  ...disability or any other legally protected status. Compensation and Benefits The... 
    Senior
    Full time
    Weekend work

    General Matter

    Los Angeles, CA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Relay Technician - Utility & High-Voltage Protection - Union. Be the first to apply!