Senior/Staff Mechanical Engineer, Power Electronics
- Salary
- $120,000 - $220,000 per year
- Level
- Staff
- Work type
- On-site · Scotts Valley
Not stated in the posting: visa.
Open. First seen 15 October 2026.
About the role
What to Expect
Heron Power's standard text
Heron Power is a startup company building cutting-edge power electronics for the 21st-century grid. We aim to debottleneck the growth of electricity generation and consumption with scalable, innovative, and less costly hardware solutions, accelerating the electrification of everything.
Our first goal is to build better converters (inverters & rectifiers) to connect large-scale renewables, storage, and loads to the grid. Heron’s leadership team is made up of seasoned veterans who have designed and shipped gigawatts of power conversion products over the past decade.
Heron Power's standard text
We understand that no one individual knows everything. We will all learn a lot together and from each other. We strive to build a collaborative, enriching environment conducive to personal, technical, and career growth. You can expect to work in a dynamic and collaborative environment, driven by first principles engineering, solving difficult problems.
Job Overview
As a Mechanical Engineer, you will design, develop, and validate cutting-edge medium-voltage power electronics systems. You will design a wide range of associated parts and assemblies using a first principles design approach. Your role will involve performing a variety of tasks, including CAD, analysis, prototyping, testing, and hands-on work. You will collaborate closely with electrical, test, and manufacturing engineering teams, as well as external suppliers. You will own your designs from concept through high-volume production.
How You Will Contribute
- Design mass-manufacturable parts and assemblies for power converters, such as enclosures, plastics, heatsinks, insulators, transformers, connectors, PCBAs, bolted joints, and adhesive joints
- Own parts and assemblies from initial concept to high volume production
- Design with a first principles approach, optimizing parts through analysis (e.g. structural, thermal, tolerance)
- Create 3D designs and 2D drawings using CATIA V6/3DX
- Perform hands-on work such as prototyping and testing
- Collaborate with different engineering disciplines, including mechanical, electrical, manufacturing, and reliability teams, as well as external partners and suppliers
What You Will Bring
We have a short list of must-have requirements. We prioritize a strong grip on first principles, hands-on skills, and a sense of initiative. Domain-specific knowledge and experience will help determine the career level for each hire.
Must-Have Requirements
- Bachelor's degree in mechanical engineering, mechatronics, or similar
- 4+ years of full-time industry experience
- Demonstrated exceptional ability designing mechanical parts or assemblies
- Demonstrated exceptional ability working with 3D CAD (bonus if there is experience with CATIA V6/3DX)
- Strong engineering fundamentals including a basic understanding of electronics
- Experience designing electromechanical parts or assemblies
- Experience with high volume manufacturing and processes such as fastening, sheet metal bending, stamping, injection molding, diecasting, extruding, and dispensing
- Excellent communication and interpersonal skills
- Ability to work independently and as part of a team
- Strong problem-solving skills and attention to detail
Nice-to-Haves
- Experience designing power electronics converters
- Experience with PCBAs, connectors, fuses, and other electronic components
- Experience with FEA, CFD, multi-physics modeling, or associated software (Ansys, MATLAB, Python, Simulink, StarCCM, etc.)
- Experience with GD&T and tolerance analysis
- Experience with reliability and validation testing, as well as DFMEAs
- Experience with product lifecycle management (PLM) and controlled release processes
- Experience with medium voltage (34.5kV) or grid-related products, such as converters, switchgear, circuit breakers, insulation, and shielding
If you are passionate about technology and enjoy working in a fast-paced environment, we would love to hear from you. Join us in accelerating the electrification of everything Heron Power.
Heron Power provides competitive compensation (salary and equity) and benefits. The salary for this role ranges from $120,000 to $220,000 per year.
What this role asks for
Particular to this role
ANSYS · CATIA · FEA · GD&T
Rare in Heron Power's other 38 open postings.
Standard for embedded / hardware roles
Python
Common in embedded / hardware postings at any company.
84% of this description is written for the role. The rest is Heron Power's standard text, folded away below.
Read against Heron Power's other open postings on this site.
The team: Engineering HIRES STEADILY
This role is one of 28 open in Engineering. 13 were posted in the last 30 days and the oldest in February: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Embedded Systems (16 of 28), Python (13 of 28), MATLAB (9 of 28), PCB Design (8 of 28), Simulink (8 of 28), CATIA (6 of 28), Test Automation (6 of 28)
OTHER ROLES ON THIS TEAM
- Senior/Staff Power Electronics Engineer posted Oct 13
- Senior/Staff Electronics Design Engineer posted Oct 13
- Senior/Staff Manufacturing Engineer posted Oct 9
- Senior/Staff Software Engineer, Connected Systems posted Oct 9
- Intern, Power Electronics Controls Engineer (Spring 2027) posted Oct 7
- Intern, Medium Voltage Test Engineering posted Sep 30
- Intern, Electronics Design Engineer, Summer 2027 posted Sep 30
- Intern, Electrical Engineering (Compliance) - Spring 2027 posted Sep 29
- Electrical Engineer - Manufacturing Test posted Sep 26
- Hardware Validation Systems Developer posted Sep 25
- Test Engineer – Power Electronics posted Sep 25
- Electrical / Electronics Design Engineer - PCBA Test Automation posted Sep 25
- R&D Engineering Technician posted Aug 27
- Technical Program Manager - Power Electronics posted Aug 25
- Reliability Engineering Lead posted Aug 20
- Software Engineer/Senior Software Engineer posted Aug 13
- Senior/Staff Mechanical Engineer, Industrial Enclosures posted Aug 6
- Intern, Automation Controls Engineer (Spring 2027) posted Jul 31
- Staff Engineering Program Manager posted Jul 29
- Staff/Senior Staff Software Engineer posted Jul 13
- Electronics Design Engineer posted Jun 12
- Intern, Power Electronics Engineer, Spring/Summer 2027 posted Jun 12
- Intern, Mechanical Engineer (Spring/Summer 2027) posted Jun 1
- Intern, Hardware Test Engineering (Spring/Summer 2027) posted May 11
- Engineering Technician posted Apr 23
- Intern, Power Electronics Engineer, Power Magnetics, Spring 2027 posted Feb 24
- Staff/Senior Staff Compliance Engineer posted Feb 24
From the team and dates on Heron Power's own job board.
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