Role overview
Job description
As an End of Line Technician, you will play a critical role in the assembly, testing, validation of our next-generation linear generator technology. You will perform mechanical and electronics assembly, diagnostics, retrofits, functional testing, core validation, emissions testing, and electronics box (eBox) testing, in collaboration with our contract manufacturer.
Collaborate: Partner with cross-functional operation and test teams in a dynamic, fast-paced production and test environment, and provide support for LGen owned by Mainspring
Mechanical & Electronics Assembly: Assemble mechanical and electromechanical generator components and subassemblies following established procedures, identifying opportunities for process improvements
Troubleshoot, Repair & Retrofit: Diagnose and repair mechanical systems and electronic control/power electronics boxes, perform in-house and field retrofits as needed, and implement design updates with engineers
Testing & Validation: Execute comprehensive testing, including core validation, emissions testing, eBox testing, and general generator system functional testing across lab, production, and limited field environments
Inspect & Document: Perform thorough inspections, document test results, failures, retrofit actions, and corrective measures, providing actionable feedback to the engineering team
Continuous Improvement: Contribute to process improvements focused on safety, throughput, retrofit efficiency, and operational effectiveness in a high-tempo environment
Minimum 3 years of hands-on mechanical assembly and/or repair experience; experience in fast-paced manufacturing, automotive, power generation, or heavy equipment environments is a plus
Experience with electronics diagnostics, troubleshooting, and retrofit implementation, including control boxes, sensors, wiring harnesses, and connectors
Knowledge of or experience with product validation, emissions testing, and eBox testing is a strong plus
Proven ability to manage multiple tasks, adapt to changing priorities, and maintain a strong commitment to safety and quality
Proficiency with precision measurement tools (micrometers, bore gauges, gauge blocks) capable of measurements down to 0.001”
Familiarity with software tools, data logging, and test documentation systems is a plus
Forklift or heavy equipment operation experience is a plus
Fluent in English and Spanish
About this listing
- Source: Mainspring Energy's official careers site (via Lever) · last confirmed on the source 3 Nov 2026
- Posted 22 Oct 2026
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What they are looking for
Skills & requirements
Qualification
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability
Department · Manufacturing & Operations - Monterrey, Mexico
Hiring company
Mainspring Energy
Power generation for data centers, utilities, industrial & enterprise applications. Fuel-flexible, fast to deploy, high-efficiency, low NOx power.
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