Senior Mechanical Engineer: Battery & BMS Design (Onsite)

FISICA; Strathearn (CA); On-site; USD 100,000 - 186,000; Full time

Benefits offered by this job

Competitive salary and benefits

Generous paid time off

401k with 6% match

Strong work-life balance

Tuition Reimbursement

Paid paternal leave

Job summary

Fisica, Inc. in Simi Valley, CA is seeking a Senior Specialist, Mechanical Engineer to lead design and testing of mechanical and electro‑mechanical battery systems.

You will drive full‑cycle development from concept through production and work closely with electrical engineers on BMS concepts in a hands‑on environment. You will collaborate with customers in weekly reviews, develop test procedures, and perform root‑cause analyses across multiple programs while ensuring safety and compliance.

Qualifications

• Bachelor’s degree in mechanical or electrical engineering with 6 years of experience.
• SolidWorks 3D CAD with 3D visualization; CREO a plus; ASME Y14.5 knowledge.
• Experience with FEA (Ansys) for thermal, shock and vibration analyses.
• Ability to design, test and document mechanical systems; strong writing skills.
• Security clearance ability; U.S. citizenship required.

Responsibilities

• Full-cycle development of battery and charger products from concept to production.
• Design, develop, analyze, and test battery and charger products for rugged use.
• Support BMS designs and provide feedback on customer proposals.
• Collaborate with customers; present work in meetings and design reviews.
• Develop testing approaches; create procedures and documentation; perform battery testing.
• Conduct failure and root-cause analyses.
• Support multiple programs simultaneously.

Skills

Battery design

FEA simulation

3D CAD visualization

Technical writing

Customer collaboration

Electrical grounding

Education

Bachelor's degree in Mechanical Engineering

6 years of experience

Tools

SolidWorks

CREO

ANSYS

MS Office

Job description

Fisica, Inc. in Simi Valley, CA is seeking a Senior Specialist, Mechanical Engineer to lead design and testing of mechanical and electro‑mechanical battery systems.

You will drive full‑cycle development from concept through production and work closely with electrical engineers on BMS concepts in a hands‑on environment. You will collaborate with customers in weekly reviews, develop test procedures, and perform root‑cause analyses across multiple programs while ensuring safety and compliance.