Mechanical Engineer Location: Remote (PST time zone preferred) Team: Power Systems The Impact You’ll Make: 1AP is looking for a Senior Mechanical Engineer for packaging and thermal design of high power electronics in the areas of renewable energy, energy storage and more. You will work on mechanical architecture design, enclosure design and cooling of power semiconductors (air cooled and liquid cooled) in systems ranging from a few hundred of kilowatts to megawatts, from design concept to hand off to production. Key Responsibilities: - Create structural designs for mechanical packaging and other related mechanical parts including PCBA design supports - Generate drawings and taking care of BOMs,FAIs,ECOs and MCOs. - Perform DFM/DFA analysis, both internal and with external suppliers - Work with hardware, compliance, reliability and NPI engineers to meet electrical parameter targets, compliance, quality/reliability and manufacturing requirements for the products - Analyze and design cooling solutions for power electronics devices and other power electronics elements - Perform mechanical and thermal tests in the lab to validate concepts The Skills You Bring: - Bachelor’s or higher Degree in Mechanical Engineering, or a related field - Experience with CAD systems with minimum 2+years Solidworks experience - Good knowledge of 3D modeling and generation of CAD drawings - Familiar with different design skills including plastics injection molding, sheet metal, castings, extrusion, machining and rapid prototypes. - Experience in bringing a product to mass production and support for it. - Experience in thermal design in FEA software to include conduction, convection, and fluid dynamics for both air and liquid-cooled solutions - Good knowledge of heatsinks, fans, heat exchangers (liquid cooling), cold plates design - Capable of managing suppliers, vendors, and prototyping shops - Good communication and team work skills to work in a fast paced environment. Nice to Have: - Previous experience in a similar power electronics field in powers ranging from hundreds of Watts to 1MW - Experience in areas of PV (solar) inverters, EV chargers, battery storage, or similar technologies - Experience in low and high-volume production - Experience in mold/tooling optimization - Experience with Creo 3D modeling software and PLM systems Benefits and Perks: - Competitive Compensation Package - Remote Flexibility with 5-15% travel to sites as needed - Health Insurance: We offer 100% coverage of employee premiums under a Gold-level PPO plan. Dental & Vision Insurance: 50% of employee premiums are covered. - Retirement Plan: A 401(k) plan with a 6% employer match. Additional Information: Minimum salary of $155,000 to maximum salary of $170,000 + equity + benefits. The range provided is 1AP’s reasonable estimate of the base compensation for this role. The actual amount will be based on job-related and non-discriminatory factors such as location, experience, training, skills, and abilities. Consult with your Recruiter during the initial call to determine a more targeted range based on these job-related factors. About 1st Avenue Power: At 1st Avenue Power, we are on a mission to deliver simple, fast-to-deploy, customer-centric and intelligent power systems leveraging the abundance of solar to provide inexpensive and reliable clean energy to global customers from data centers to energy starved communities around the world. We envision a future where every community, business, and nation thrives on the limitless potential of clean energy, united in a shared commitment to a sustainable and equitable world. You will be working with Dr. Tom Buttgenbach, one of the most successful clean energy technology innovators and entrepreneurs who has been a driving force in making solar-based energy solutions the cheapest and most reliable energy option. Tom founded and led Avantus (formerly known as “8minute Solar Energy“), to become one of the largest and most profitable solar and energy storage companies in the United States and the largest in California, including delivering over 17% of Los Angeles’ power. When Tom sold his interest in Avantus’ development business to KKR in mid-2024, it had delivered over $1 billion in profit and secured over $10 Billion in power purchase agreements and project financings with a pipeline of over 30 GW of solar and 90 GWh of energy storage, capable of powering the homes of more than 20 million Americans day and night. Tom’s family office investment firm, 1st Avenue Capital, is building teams for the next generation of advanced solar power system architecture and AI to aggressively drive down the cost of and equitable access to clean and reliable energy.[1] 1st Avenue’s advanced large scale power systems are addressing the increasing inadequacy of the grid to meet the massively growing power demands of the digital economy, while its intelligent distributed solar utilities are leapfrogging the grid to provide equitable access to inexpensive, clean and reliable power to underserved communities around the world. 1AI Energy, the employing entity for 1st Avenue Power, and 1st Avenue Power are committed to a policy of Equal Employment Opportunity and will not discriminate against an applicant or employee based on race (inclusive of traits associated with race, including hair texture and protective hairstyles), color, religion, religious creed, national origin, ancestry, sex (including pregnancy, childbirth, and breastfeeding), age, veteran or military status, marital status, physical or mental disability, medical condition, genetic information, gender, gender identity, gender expression, sexual orientation, reproductive decision-making, or any other legally recognized protected class under federal, state, or local law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.. Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act (ADA), the California Fair Employment and Housing Act (FEHA), and local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on 1AI Energy or 1st Avenue Power. Please inform the company's personnel representative if you need assistance completing an application or to otherwise participate in the application process. Join our team and make a real difference in the world. [1: Additionally, 1st Avenue is in the business of acquiring projects where there has been a final notice-to-proceed or financial close.] California Pay Range $135,000—$170,000 USD

• Design and develop large-scale mechanical systems for water infrastructure projects. • Create 3D models using Autodesk Inventor, Autodesk Revit or other mechanical design software for use in design drawings. • Size and select hoists, actuators and associated waterworks mechanical systems. • Conduct engineering calculations and analysis to ensure structural integrity and mechanical performance according to industry standards and specifications. • Review and approve engineering drawings and vendor submittals. • Collaborate with multidisciplinary teams including Civil, Structural, and Electrical Engineers. • Ensure designs comply with applicable codes, standards, and client requirements. • Prepare technical reports, specifications, and documentation. • Support proposal development by providing technical input.

• Conduct site visits to assess the existing turbine and/or generator condition • Supervise signature tests on the unit before disassembly at site • Daily phone call with site team to answer questions and for problem anticipations • Provide additional work recommendation upon dismantling and inspection of existing components • Site record sheet review and approval • Non-conformity and general issue resolution • Conduct site visits during the critical phases of the project • Support commissioning and test phase • Reliability Issue resolution during warranty period • Provide Feedback of experience to the design team • Main site contact for operation and maintenance contracts

• Responsible for the design of hydro generator mechanical components for installed based projects • Provide technical support for supply chain and site activities related to hydro generators • Deliver design work packages for hydro generator projects using technical guidelines and reference projects • Collaborate with other engineering COEs (Center Of Excellence) worldwide • Participate and lead design review meetings with engineers, functions and consulting Engineers • Supervise draftsmen to deliver design calculations, technical specifications, drawings and BOM’s • Apply rules for reliability, quality, safety and cost