Senior Mechanical Systems Architect

Mainspringenergy; Edison (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Mainspring Energy seeks a Senior Staff Mechanical Engineer to shape technical direction across multiple teams within the Linear Generator platform. You will guide system-level design decisions, resolve cross-functional tradeoffs, and establish validation strategies and data-driven guidance for high-consequence decisions.

Ideal candidates demonstrate advanced technical ownership, operate with autonomy, align stakeholders, and improve decision quality across projects while balancing performance,

Qualifications

• This role requires advanced technical ownership across mechanical systems and programs.
• Demonstrated ability to lead cross-functional design decisions and tradeoffs.
• Experience developing hardware for energy systems and validated design curves.

Responsibilities

• Lead technical direction for broad mechanical projects with high ambiguity and program impact.
• Guide architecture and subsystem-level design decisions across teams.
• Frame complex problems, identify tradeoffs, and align stakeholders on paths forward.
• Establish validation, test, and data strategies for major technical decisions.

Skills

Technical leadership

Cross-functional

System-level design

Risk assessment

Data-driven decisions

Stakeholder alignment

Education

BS/MS/PhD in Mechanical Engineering

Tools

FMEA

System modeling

Finite element analysis

Job description

Mainspring Energy seeks a Senior Staff Mechanical Engineer to shape technical direction across multiple teams within the Linear Generator platform. You will guide system-level design decisions, resolve cross-functional tradeoffs, and establish validation strategies and data-driven guidance for high-consequence decisions.

Ideal candidates demonstrate advanced technical ownership, operate with autonomy, align stakeholders, and improve decision quality across projects while balancing performance,