Senior Electrical Engineer - End-to-End Electronics Design

Mainspring Energy; Menlo Park (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Mainspring Energy is seeking a Senior Electrical Engineer, Electronics Design to own end-to-end electrical hardware and PCBA designs powering the Linear Generator. You will design and validate low-voltage systems, lead cross-functional reviews, and drive hardware reliability in a fast-paced startup environment.

Join a world-class team to push innovations in power generation control architecture, collaborating across HV/LV domains and with external suppliers to scale manufacturability and

Qualifications

• 8+ years of electrical design experience with Bachelor's degree (7+ years with Master's).
• Hands-on design, troubleshooting, and realization of low-voltage hardware (<60V).
• Proficient in PCBA schematic capture and PCB design tools (Altium preferred).
• Strong analog/mixed-signal fundamentals (op-amps, ADCs, filtering).
• DFMEA, tolerance analysis, derating concepts.
• Proven ability to drive projects from requirements to production.
• Collaborative communication across diverse technical teams.

Responsibilities

• Low-Voltage Hardware Design: Design low-voltage (<60V) electrical systems and PCBAs.
• Bring-Up & Validation: Own bring-up, validation, and qualification of hardware designs.
• Technical Reviews: Lead cross-functional design reviews for requirements and approvals.
• Complex Diagnostics: Debug and troubleshoot hardware issues across field deployments and labs.
• Design for Reliability: Work with reliability engineers to improve robustness.
• Manufacturing Collaboration: Align with NPI and suppliers for DFM/DFT.
• Cross-Domain Integration: Define cabling and embedded firmware support.
• Team Growth: Mentor peers within a world-class engineering team.

Skills

Low-Voltage Design

PCB Design

Schematic Capture

Analog/Mixed-Signal

DFMEA

Project Leadership

Collaboration

Education

Bachelors in Electrical Engineering

MS in Electrical Engineering

Tools

Altium

Job description

Mainspring Energy is seeking a Senior Electrical Engineer, Electronics Design to own end-to-end electrical hardware and PCBA designs powering the Linear Generator. You will design and validate low-voltage systems, lead cross-functional reviews, and drive hardware reliability in a fast-paced startup environment.

Join a world-class team to push innovations in power generation control architecture, collaborating across HV/LV domains and with external suppliers to scale manufacturability and