Engineering Technician – Energy & Battery Systems

Critical Loop; United States; On-site; USD 95,000 - 115,000; Full time

Benefits offered by this job

Equity ownership through stock options

Comprehensive health coverage (medical

Dental and vision) through an HRA

Retirement savings plan

Unlimited paid time off

Job summary

Critical Loop is seeking an experienced Engineering Technician to join our Product Development team, supporting the build, integration, and testing of next-generation energy hardware. This hands-on role moves between the shop floor and test environment, wiring prototypes from drawings and diagnosing issues with engineers.

You will work on-site in Long Beach/Torrance, perform HV/LV wiring, set up bench and HIL test equipment, and capture traceable data while maintaining safety standards and

Qualifications

• 5+ years hands-on experience as an Engineering Technician or similar role.
• Experience building/testing precision electromechanical hardware in energy/BESS, EV/battery, automotive, aerospace, or industrial hardware.
• Experience reading engineering drawings, electrical schematics, wiring diagrams, GD&T, BOMs, and work instructions.

Responsibilities

• Build, wire, and assemble prototype electromechanical skids, control cabinets, switchgear, and subassemblies from engineering drawings, schematics, work orders, and work instructions.
• Perform HV/LV wire routing, harnessing, crimping, terminations, connector installation, fastening, and torquing to specification.
• Set up and operate bench and hardware-in-the-loop (HIL) test equipment, including inverters, load banks, DAQ systems, sensors, oscilloscopes, power meters, and power analyzers.
• Execute development and validation testing and capture clean, accurate, and traceable test data for engineering.
• Read and interpret electrical drawings, wiring diagrams, mechanical drawings, GD&T, BOMs, and work instructions.
• Identify build and test issues, troubleshoot problems, and work directly with engineering to determine root causes and next steps.
• Verify and redline drawings and work instructions based on actual build and test experience.
• Document nonconformances and provide clear feedback that improves future designs, builds, and processes.
• Maintain organized lab tools and instrumentation and ensure required calibration is current.
• Follow established safety practices when working around high‑voltage and high-energy systems, including LOTO, arc‑flash PPE, and ESD requirements.
• Partner closely with Electrical & Controls Engineering, Production/Build, Test, Quality, and Field Service teams.

Skills

Engineering Technician

Read drawings

Electrical harnessing

Test instrumentation setup

Safety compliance (LOTO)

Tools

DAQ systems

Oscilloscopes

Power analyzers

Load banks

Soldering tools

Job description

Critical Loop is seeking an experienced Engineering Technician to join our Product Development team, supporting the build, integration, and testing of next-generation energy hardware. This hands-on role moves between the shop floor and test environment, wiring prototypes from drawings and diagnosing issues with engineers.

You will work on-site in Long Beach/Torrance, perform HV/LV wiring, set up bench and HIL test equipment, and capture traceable data while maintaining safety standards and