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End Line Inspector Jobs (NOW HIRING)

Mainspring Energy

End of Line Technician

Menlo Park, CA · On-site

$28 - $37/hr

As an End of Line Technician, you will play a critical role in the assembly, testing, validation ... Inspect & Document: Perform thorough inspections, document test results, failures, retrofit actions ...

Mainspring Energy

End of Line Technician

Menlo Park, CA · On-site

$28 - $37/hr

As an End of Line Technician, you will play a critical role in the assembly, testing, validation ... Inspect & Document: Perform thorough inspections, document test results, failures, retrofit actions ...

Anduril Industries

Perform incoming inspection, in-process inspection and end of line inspection. * Support Material review board processes. * Propose, develop and implement quality assurance policies and procedures ...

SpaceX

Quality Inspector (Valves)

Hawthorne, CA

$35 - $44/hr

You will perform in-process and end-of-line inspections to verify that all key performance and design characteristics are met or exceeded during flight hardware manufacturing. You will be working ...

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How much do end line inspector jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for end line inspector in the United States is $18.66, according to ZipRecruiter salary data. Most workers in this role earn between $17.31 and $18.27 per hour, depending on experience, location, and employer.

What is an end line inspector?

End Line Inspectors are quality control professionals responsible for examining finished products at the end of the manufacturing process to ensure they meet specified standards. They inspect items for defects, verify measurements, and check for compliance with safety and quality regulations. Their work helps prevent defective products from reaching customers and plays a crucial role in maintaining a company’s reputation for quality. End Line Inspectors often document their findings and may work closely with production teams to address recurring issues.

What are the key skills and qualifications needed to thrive as an end line inspector?

To thrive as an End Line Inspector, you need strong attention to detail, knowledge of quality control processes, and often a high school diploma or equivalent. Familiarity with inspection tools, measurement instruments, and quality management systems like ISO standards is typically required. Dependability, problem-solving ability, and effective communication are key soft skills that help identify and address defects efficiently. These skills ensure products meet quality standards and reduce defects, contributing to customer satisfaction and operational efficiency.

What are some common challenges faced by end line inspectors, and how can they be addressed?

End Line Inspectors often face challenges such as maintaining high attention to detail during repetitive tasks, meeting production deadlines, and effectively communicating quality concerns to the production team. To address these, it's important to take regular short breaks to stay focused, develop a systematic inspection routine, and foster strong relationships with team members for efficient resolution of issues. Continuous training on quality standards and proactive communication with supervisors can also help manage workload and improve inspection accuracy.

What is the difference between End Line Inspector vs Quality Control Inspector?

AspectEnd Line InspectorQuality Control Inspector
CertificationsOften requires industry-specific certifications, such as NDT or quality assurance trainingTypically requires certifications like ISO auditor or quality management system training
Work EnvironmentPrimarily inspects products at the end of production lines, often in manufacturing plantsWorks across various stages of production, including incoming materials, in-process, and finished goods
Industry UsageCommonly used in manufacturing, automotive, and electronics industriesWidely used across manufacturing, aerospace, and consumer goods sectors

While both roles focus on ensuring product quality, End Line Inspectors specifically evaluate finished products at the end of the production line, whereas Quality Control Inspectors may perform inspections at multiple stages throughout the manufacturing process. Understanding these differences helps employers and job seekers target the right roles in the industry.

What cities are hiring for End Line Inspector jobs?

Cities with the most End Line Inspector job openings:

What states have the most End Line Inspector jobs?

States with the most job openings for End Line Inspector jobs include:

What are popular job titles related to End Line Inspector jobs?

For End Line Inspector jobs, the most frequently searched job titles are:

Infographic showing various End Line Inspector job openings in the United States as of August 2026, with employment types broken down into 79% Full Time, 16% Part Time, 1% Temporary, and 4% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $38,809 per year, or $18.7 per hour.

End of Line Technician

Menlo Park, CA • On-site

Mainspring Energy
Clean Energy Power Generation • 201 - 500 employees
Learn more about Mainspring Energyexternal

$28 - $37/hr

Full-time

Re-posted 9 days ago

Job description

About Mainspring

Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.

The core values that ground our work, guide our decisions, and connect us together:

  • Pragmatic Optimism
  • Excellence without Ego
  • Proactive Collaboration
Job Overview 

Mainspring is seeking a motivated and technically skilled End of Line Technician to join our growing Product Testing team. This role is ideal for individuals who thrive in a fast-paced, hands-on environment, enjoy mechanical and electromechanical work, and are energized by troubleshooting, testing, and continuous improvement.

As an End of Line Technician, you will play a critical role in the assembly, testing, validation, and occasional field deployment 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, primarily in-house, with limited field work to support on-site testing or retrofit activities.

Responsibilities
  • Collaborate: Partner with cross-functional build and test teams in a dynamic, fast-paced production and test environment, and provide support for limited on-site field activities
  • 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
Qualifications
  • Minimum 3 years of hands-on expereince with mechanical assembly and/or repair
  • 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 core validation, emissions testing, and eBox testing is a strong plus
  • Willingness and ability to perform limited field work, including occasional on-site testing or retrofit support
  • 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
  • Possession of a California Class A Commercial Driver's License (CDL) is a plus
$28 - $37 an hour
This position is onsite at our Menlo Park HQ. The hourly rate will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee. Along with the base hourly, Mainspring offers pre-IPO stock options + benefits + bonus.

Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don't meet all posted requirements for a particular role, we'd still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.

In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. 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.

This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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