End of Line Technician - Power Gen Testing (Onsite, RSUs)

Mainspring Energy, Inc.; Menlo Park (CA); On-site; USD 39,000 - 51,000; Full time

Benefits offered by this job

RSUs (equity)

Benefits

Job summary

Mainspring Energy, Inc is seeking an End of Line Technician to join the Product Testing team in Menlo Park. You will assemble, test, diagnose, and retrofit next-generation linear generators, with emphasis on reliability, emissions performance, and field readiness.

In this role, you will collaborate across teams, perform precise mechanical and electronics work, document results, and contribute to continuous improvement while maintaining safety and quality in a fast-paced environment.

Qualifications

• 3+ years of hands-on mechanical assembly/repair experience
• Experience in fast-paced manufacturing, automotive, power generation, or heavy equipment environments
• Electronics diagnostics, troubleshooting, and retrofit implementation experience
• Knowledge of core validation, emissions testing, and eBox testing is a strong plus
• Willingness for limited field work, including on-site testing or retrofit support
• Proven ability to manage multiple tasks and prioritize safety and quality
• Proficiency with precision measuring tools (to 0.001'')
• Familiarity with software tools, data logging, and test documentation systems
• Forklift or heavy equipment operation experience
• California Class A CDL is a plus

Responsibilities

• Collaborate with cross-functional build and test teams in a dynamic production and test environment, with limited on-site field activities
• Mechanical & Electronics Assembly: build components and subassemblies following procedures, identify improvement opportunities
• Troubleshoot, Repair & Retrofit: diagnose and repair mechanical/electronic systems, perform in-house and field retrofits, implement design updates
• Testing & Validation: conduct core validation, emissions, eBox, and general generator testing across labs and field environments
• Inspect & Document: perform inspections, document test results and corrective actions, provide feedback to engineers
• Continuous Improvement: drive safety, throughput, retrofit efficiency, and overall operational effectiveness

Skills

Hands-on assembly

Electronics diagnostics

Retrofits & troubleshooting

Core validation & emissions

Field work readiness

Multi-tasking

Precision measurement

Data logging

Forklift experience

CDL (CA)

Job description

Mainspring Energy, Inc is seeking an End of Line Technician to join the Product Testing team in Menlo Park. You will assemble, test, diagnose, and retrofit next-generation linear generators, with emphasis on reliability, emissions performance, and field readiness.

In this role, you will collaborate across teams, perform precise mechanical and electronics work, document results, and contribute to continuous improvement while maintaining safety and quality in a fast-paced environment.