High Voltage Technician

STEM Boomerang; Austin (TX); On-site; USD 70,000 - 110,000; Full time

Benefits offered by this job

Health insurance (100% employer-paid)

Job summary

Stellios Technologies in Austin, TX, is hiring a High Voltage Technician to build, wire, insulate, and operate the electrical systems that power our advanced hardware.

This hands-on role covers wiring harness fabrication, HV cable termination, potting, and the assembly of HV power supplies and modulators up to one million volts. Safety, reproducibility, and working with engineers are essential. No degree is required.

Qualifications

• Must have real, hands-on high voltage experience.
• No degree is required.
• Three good years beats a longer but passive career.
• Experience at labs, power electronics, or automotive HV environments is valued.

Responsibilities

• Wiring harness fabrication, routing, labeling, and strain relief.
• HV cable termination, splicing, and insulation work.
• Assemble HV power supplies, modulators, and pulsed power hardware up to 1 MV.
• Test with hipot, megger, and partial discharge; document results.
• Troubleshoot arcing or failure to reach voltage and coordinate with engineers.

Skills

High voltage experience

Hands-on

Wiring

Safety discipline

Tools

Wiring diagrams

Job description

Austin, United States | Posted on 10/13/2026

Stellios Technologies is building advanced high power microwave andenergy systems for defense, aerospace, and energy.

We are hiring a High Voltage Technician to build, wire, insulate, and operate the electrical systems that power everything we make.

This is a hands-on build role. You will have tools in your hands and energized hardware in front of you, on real systems that run up to a million volts.

What You Will Own And/Or Support

Wiring harness fabrication, routing, dressing, labeling, and strain relief across the whole machine

High voltage cable termination, potting, splicing, and standoff and bushing installation

Epoxy encapsulation, potting, insulation systems, and the surface prep and cure discipline that makes them hold

Assembly of high voltage power supplies, modulators, and pulsed power hardware up to one million volts

Capacitor banks, energy storage assemblies, charging systems, and the safety hardware around them

Transformer, magnetics, and inductor assembly and installation

Grounding, bonding, shielding, and corona control on hardware that does not tolerate sloppy work

Setting up and operating energized systems for test — safely, repeatably, and with the interlocks and grounding discipline the job requires

Hipot, megger, partial discharge, and continuity testing, and keeping honest records of what you measured

Troubleshooting when a system arcs, tracks, flashes over, or simply will not come up to voltage

Working directly with the engineers who designed the hardware, and telling them when a design cannot be built the way it was drawn

Requirements

Who we are looking for:

You must have real, hands-on high voltage experience. This is not an entry level role and there is no substitute for having done it.

The kinds of places this experience comes from:

National labs and accelerator facilities such as SLAC, and their contractors

Power supply and power electronics manufacturers such as TDK-Lambda

Pulsed power, directed energy, and defense primes and neo-primes

Electric vehicle and automotive high voltage manufacturing such as Tesla

Industrial and medical X-ray, semiconductor equipment, and utility or substation work

No degree is required. We care what you have personally built, wired, potted, energized, and fixed. A strong technician with three good years beats a coasting one with fifteen.

You need to work from wiring diagrams, schematics, cable and harness drawings, and assembly instructions without an engineer standing over you.

You must have the safety discipline this work demands. Lockout tagout, grounding sticks, interlocks, and the habit of never trusting a system you have not personally grounded.

This role requires access to U.S. export controlled information. Candidates must qualify as a U.S. person under applicable export control laws, including U.S. citizens, U.S. nationals, lawful permanent residents, refugees, and asylees.

This role is on site in Austin.

• 100% Employer-Paid Health Insurance Premiums
• Competitive PTO and paid company holidays
• Equity Package with meaningful ownership potential
• Competitive base salary commensurate with experience and expertise