Engineering E-3 Sponsorship Jobs in California

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.

Job Overview

Mainspring Energy seeks a Commissioning Operations Engineer to design and implement resilient, clean power solutions for Commercial & Industrial customers. This involves customer engagement, site visits, and configuring & starting up custom systems based on Mainspring's linear generators. This new role offers an opportunity to shape future workflows and is ideal for analytical engineers comfortable in dynamic settings. The Linear Generator is a complex system requiring a strong understanding of operations, systems engineering, and data analysis. We are looking for a driven and inquisitive individual to excel in this interdisciplinary position.

Responsibilities

- Operate and test our Linear Generator units after new site installations to allow seamless integration into Mainspring’s growing LGen fleet
- Travel to customer sites and project locations to support new installations, site acceptance tests, and customer demonstrations
- Enhance current commissioning procedures to improve testing efficiency and shorten timelines
- Troubleshoot and root cause operation issues with our linear generators in collaboration with other engineering teams such as Mechanical, Electrical, and Software & Controls
- Work directly with our commissioning technicians to facilitate repairs, retrofits, and provide operational training on our generators
- Analyze data, generate reports and communicate results from commissioning to our customers, internal project managers, and with engineering teams to facilitate learnings
- Build and refine automation scripts, commissioning toolkits, and data-driven processes that streamline onboarding, testing, and fault recovery

Qualifications

- Bachelor’s degree in mechanical engineering, electrical engineering, physics, or equivalent
- Experience in project management
- Strong organizational and communication skills
- Understanding of electrical power distribution and control systems
- Proficiency in at least one programming language (e.g. Python, C++, MATLAB)
- Knowledge of industrial communication protocols (e.g., Modbus, Ethernet/IP)
- Strong analytical and problem-solving skills, with the ability to troubleshoot complex technical issues efficiently
- Demonstrates flexibility in approach and willingness to take on new challenges
- Detail-oriented and comfortable working in a fast-paced environment
- Enjoy working with complex systems and collaborating in interdisciplinary teams
- Willingness and ability to travel nationwide up to 50% of the time

Bonus Qualifications

- Master’s degree in Engineering or related field and/or 3+ years of applicable experience
- Hands-on experience in industrial equipment installation/commissioning, including interpreting schematics and technical specifications
- Familiarity with microgrid controls solutions, devices, programming, technical challenges, constraints, energy management systems, and controls architecture is preferred
- Experience working directly with customers in a technical or engineering capacity

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.

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.

Along with the base salary, Mainspring offers 10% bonus target + pre-IPO stock options + benefits. This position is remote. The salary will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee.