Senior Relay & Protection Technician – Automation

Telex LLC; Missouri; On-site; USD 70,000 - 120,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) retirement plan

Employee share ownership plan

Paid time off and holidays

Job summary

Telex LLC is seeking a Senior Protection and Control Technician to lead testing and commissioning for substation projects. This role emphasizes protective relaying, testing protocols, and troubleshooting across DFRs, SCADA, and automation systems.

You will collaborate with engineering teams and clients to ensure high-quality execution, provide guidance to junior technicians, and support development of standardized procedures.

Qualifications

• 1-5 years field experience in relay testing, calibration, or substation commissioning without direct supervision.
• Strong understanding of three‑phase power systems and protection schemes.
• Proficiency with Omicron, Doble, Vanguard, and related test equipment.
• Skilled in RTS, Test Universe, Protection Suite, and Accelerator.
• Strong troubleshooting and communication skills.
• Valid driver's license and ability to travel.

Responsibilities

• Perform commissioning, installation, and maintenance of protective relaying equipment, DFRs, SCADA systems, and automation systems.
• Conduct end‑to‑end relay testing using Doble Protection Suite, Omicron Test Universe, and RTS.
• Execute functional and scheme testing including reclosing, breaker failure, logic schemes, and communication‑assisted protection.
• Troubleshoot protocols such as DNP3, Modbus, and 8979 using Wireshark, Accelerator, and ASE 2000.
• Support development of standardized testing procedures.
• Collaborate with clients, vendors, and engineering teams to ensure reliable project outcomes.
• Provide guidance to junior technicians when needed.

Skills

Protective relaying

Relay testing

Troubleshooting

Team collaboration

Mentoring juniors

Tools

Omicron Test Universe

Doble Protection Suite

RTS

Accelerator

ASE 2000

Vanguard

Job description

Telex LLC is seeking a Senior Protection and Control Technician to lead testing and commissioning for substation projects. This role emphasizes protective relaying, testing protocols, and troubleshooting across DFRs, SCADA, and automation systems.

You will collaborate with engineering teams and clients to ensure high-quality execution, provide guidance to junior technicians, and support development of standardized procedures.