Electric Supercar Contract Work

JUSTIN WANG

MECHANICAL ENGINEER

Work Experience

Seres / SF Motors - (2018 – 2024)

  • Electric Drive Units – Designed motor housings, lubrication, and cooling systems from ideation to commercialization.

  • Dynamometers – Tested, debugged, and repaired electric motors from prototype to production design.

  • Project Management – Aligned with other subsystems and negotiate with external customers and international vendors.

  • Resource Management – Scheduled and supported testing sessions for mechanical, electrical, and software teams.

 

Senior Mechanical Engineer (2019 – 2024)

  • Designed housings and components for electric drivetrain motors, gears, and batteries in CATIA V5, using solid and surface modeling, to be mass-manufactured with high-pressure die casting and lost foam casting methods.

  • Accomplished significant cost reductions in high-volume production by enhancing assembly and part design, optimizing manufacturing processes, and collaborating with international contract manufacturers.

  • Reduced assembly part count, standardized hardware, implemented innovative sealing techniques, and selected alternative off-the-shelf components.

  • Achieved successful delivery and provided ongoing support for our drivetrain package, which has been utilized in tens of thousands of SERES SF5 and AITO (Huawei) M5 cars on the road.

  • Collaborated with simulation engineers to facilitate their work by providing pre-processing models and conducting post-processing tasks such as optimization, correlation, and validation.

  • Utilized Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) within the ANSYS suite to conduct basic studies on stress, deflection, resonance, thermal, and flow.

  • Provided training and mentorship to interns, junior engineers, and technicians, fostering a positive and collaborative company culture.

Senior Test Engineer (2018 – 2019)

  • Developed and implemented Coordinate Measuring Machine (CMM) programs to automate the measurement and generation of detailed Geometric Dimensioning and Tolerancing (GD&T) reports for First Article Inspection (FAI) of electric drivetrain components.

  • Identified critical errors in position, runout, cylindricity, perpendicularity, flatness, and other GD&T parameters, providing proactive process feedback to volume suppliers to mitigate existing and potential manufacturing issues.

  • Led cross-functional collaboration by providing feedback to designers, guiding them to tighten critical tolerances and eliminate unnecessary specifications, resulting in improved performance, reliability, and reduced volume manufacturing costs.

  • Significantly shortened the time between design phase release by several months and saved tens of thousands of dollars by reducing outsourcing expenses.

Prototype Vehicle Engineer (jan 2018 – april 2018)

  • Fabricated electrical wiring harnesses and mechanical hardware mounts, successfully delivering a development "mule" vehicle within a three-month timeframe.

  • Diagnosed, debugged, and determined root causes of complex mechanical, electrical, and software challenges, ranging from vehicle system-wide problems to individual component-level intricacies.

  • Provided a robust testing platform for evaluating mechanical systems, power electronics, and control algorithms, resulting in a reduction of time and costs associated with early-stage product development.


Click below to see some Car and Garage related YouTube videos I’ve made.

Other Related Qualifications

  • Engineering Background – Comfortable reading and learning technical specifications, requirements, and capabilities of products.

  • Digital Content Production – YouTube experience, website and domain creation (Shopify, Etsy, Squarespace, Hover).

  • Automotive, Organization, and Tech Passion – Curiosity and interests aligned with Electric Supercar.

  • Building and manufacturing – Good at turning a wrench and prototype fabrication.