Senior Process Manufacturing Engineer

Company Overview
Mainspring Energy is revolutionizing power generation with the world's most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid-scale operations. The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near-zero NOx emissions.
Backed by top-tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we're quickly scaling for international expansion.
Inspired by our vision of the affordable, reliable, net-zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we're hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers.
We are looking to build relationships with people who share our values:
Pragmatic Optimism. Building a new category of world-class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth.
Excellence without Ego. We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world-class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors.
Proactive Collaboration. The integration and cross-disciplinary nature of Mainspring's business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers.
More information can be found at
Job Overview
Mainspring Energy is at the forefront of developing cutting edge products and is seeking for a Process Manufacturing Engineer to support our Manufacturing Operation in Monterrey by driving optimization of production processes, drive continuous improvement initiatives, and ensuring efficient line design and balance. This role will focus on increasing throughput, enhancing efficiency, and supporting product changes to ensure smooth implementation in production. The ideal candidate will have a strong background in industrial and manufacturing engineering, problem-solving skills, and a data-driven mindset to enhance operational performance. Join our team if you are ready to bring your expertise to the forefront of manufacturing technology, contributing to the success of our linear generator startup. Your critical contribution will be rewarding and directly enable Mainspring's aggressive growth targets. Responsibilities

• Identify and implement continuous improvement initiatives to optimize production efficiency, reduce waste, and improve overall performance.
• Design and optimize production lines, ensuring effective workflow, material flow, and labor utilization.
• Conduct line balancing studies to improve productivity and reduce bottlenecks.
• Analyze and improve manufacturing processes using Lean, Six Sigma, and other industrial engineering principles.
• Collaborate with cross-functional teams (operations, quality, design engineering) to support changes to products and processes.
• Develop and maintain standard work procedures, work instructions, and process documentation.
• Support the introduction of new products and engineering changes by ensuring seamless integration into existing production processes.
• Use time studies, simulation tools, and data analysis to make informed recommendations for process improvements.
• Drive automation and digitalization initiatives where applicable to enhance efficiency.
• Support cost reduction initiatives through material, labor, and process optimization.

Qualifications

• Bachelor's or Master's degree in Industrial Engineering, Mechanical Engineering, Manufacturing Engineering, or a related field.
• 5+ years of experience in manufacturing engineering, with a focus on manufacturing assembly processes.
• Experience with continuous improvement, lean manufacturing, and Six Sigma methodologies.

Skills & Competencies

• Strong knowledge of process optimization, line balancing, and production efficiency.
• Ability to conduct time studies, process flow analysis, and capacity planning.
• Familiarity with manufacturing automation, digital tools, and Industry 4.0 concepts is a plus.
• Proficiency in CAD software and data analysis tools.
• Strong analytical and problem-solving skills with a data-driven mindset.
• Excellent communication and collaboration skills to work with cross-functional teams.
• Experience in high-mix, low-volume or high-volume manufacturing environments is preferred.
• Familiarity with precision measuring systems, laser alignment tools, and GD&T principles.
• Willing and able to travel internationally up to 15%

$60,000 - $95,000 a month 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. 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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