Stafl Systems · 2 hours ago
Senior Mechanical Engineer
South San Francisco, CA
Full-time
Hybrid
Senior Level
$140K/yr - $182K/yr
5+ years expStafl Systems is dedicated to advancing all applications of lithium-ion battery technology to achieve a clean energy future. The Senior Mechanical Engineer will be instrumental in the design, simulation, analysis, and testing of mechanical components for electric vehicle powertrains, contributing to innovative EV technology throughout the product lifecycle.
BatteryElectronicsManufacturing
Responsibilities
Lead all aspects of design, validation, and manufacturing for batteries for electric vehicles (aircraft, off-road, marine)
Evaluate new manufacturing technology and equipment to enable scaling and continuous improvement of in-house battery production
Develop test plans and design validation methods for battery system failure modes
Perform trade off analysis and DOEs to optimize designs for performance and cost
Use SolidWorks CAD and PDM to manage and collaborate on part and assembly lifecycles
Simulate structural, thermal, and fluid models using SimScale, correlating results to physical testing
Collaborate with interdisciplinary electrical, software, systems, and project management team to deliver high confidence products
Qualification
Required
5+ years of mechanical engineering experience
Demonstrated experience working with battery technologies used in multiple cell applications or in high voltage applications
A proven history of taking projects from concept through development, test, and certification into production
Experience with rapid-prototyping development processes to create functional prototypes and jigs
Design experience using manufacturing methods such as; CNC Machining, Injection Molding, Sheet Metal Bending, 3D Printing
Joining methods, such as ultrasonic welding, wire bonding, laser welding, TIG, MIG, IP67 Sealing methods
Experience evaluating and establishing relationships with CM's & Suppliers
Experience with preforming source inspections
Ability to review technical work and provide guidance and actionable feedback
Ability to clearly communicate technical issues in succinct language with non-technical team members and stakeholders
BS or MS / MEng in Mechanical Engineering
Preferred
Experience designing consumer products, e-mobility, automotive or aerospace applications
Demonstrated knowledge in manufacturing processes
Familiarity with PDM and PLM systems
Ability to mentor engineer of various career levels
Exhibits ownership and thrives in a fast-paced, rapidly changing environment
Benefits
Comprehensive Benefits Package – including Health, Dental, Vision, and Life Insurance (99% of premiums covered)
401(k) Plan – with employer match up to 5%
Paid Time Off – 3 weeks of accrued vacation time
Paid Sick Leave – 2 weeks of accrued sick leave
Paid Parental Leave – 4 weeks of fully paid leave
Company Holidays – paid holidays in line with our company holiday schedule
Unpaid Personal Leave – flexible options available
PTO Nomination Program – recognize teammates with extra time off!
Team Outing Program – Sub-department events designed to connect and recharge, including a half-day off and a company-sponsored allowance!
Catered Team Lunches – enjoy delicious, company-provided meals together or individually
Fully Stocked Kitchen – snacks, drinks, and more to keep you fueled
Commuter Benefits – Uber Business Account access, free EV charging, and more
Professional Development – budget for training and development
Company Team Building Events – weekly, monthly, and seasonal gatherings
Flexible Work Options – While our culture emphasizes in-person collaboration, hybrid flexibility is available after the introductory period to support focused work or personal needs
Safety Shoe Stipend – support for required gear
Bereavement Leave – 1 week fully paid
Jury Duty Leave – 1 week fully paid
Company
Stafl Systems
Stafl Systems provides battery management systems and telematics solutions for electric and hybrid electric vehicles.
51-200 employees
H1B Sponsorship
Stafl Systems has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2024 (1)
2023 (1)
Funding
Current Stage
Growth StageTotal Funding
unknownKey Investors
WindSail Capital Group
2024-06-27Series Unknown
Recent News
2025-02-16
Business Wire
2024-04-22
2023-12-22
Company data provided by crunchbase