Mechanical Design - Plastics

ABOUT BUYMYEV

buymyEV is an electric two-wheeler (2W) mobility company building battery-electric commuter scooters (L1/L2 category).

We are in an active build phase across product development, manufacturing, R&D infrastructure and org scaling, with a

pipeline of 3–4 vehicle models targeting an annual production of 50,000–100,000 units and global expansion plans over the

next 2–3 years.

ROLE SUMMARY

We are looking for a Mechanical Design Engineer with strong hands-on expertise in plastic component design to own the

design, development and industrialization of plastic and composite parts for our electric scooter platforms — including

body panels, fascia, under-body components, storage/utility parts, and functional brackets/housings. The role sits at the

intersection of design, DFM/DFA, tooling and supplier development, and is critical to hitting cost, quality and program

timelines across multiple vehicle programs.

KEY RESPONSIBILITIES

• Design and develop injection-molded plastic components (body panels, fascia, mudguards, under-cowl, glove box,

storage compartments, battery/controller housings, brackets) for 2W EV platforms using CAD tools

(Creo/CATIA/SolidWorks/NX).

• Own part-level design from concept through PPAP — concept sketches, surfacing, tolerance stack-up, DFM/DFA,

mold-flow analysis inputs, and design validation.

• Select appropriate resins/grades (PP, ABS, PP-TD/GF, PC-ABS, PA-GF, TPE/TPU) based on functional, aesthetic,

UV/weathering and cost requirements.

• Work closely with tool designers and tooling vendors on mold design reviews, gate/runner/ejection strategy, parting

lines, draft angles, and shrinkage compensation.

• Drive design for snap-fits, ribs, bosses, living hinges and assembly features to eliminate fasteners and reduce assembly

time/cost.

• Coordinate mold trials, first-article inspection, and resolve warpage, sink marks, flow lines, weld lines and other

molding defects with vendors.

• Collaborate with Industrial Design, Styling, Electrical, Body-in-White and Testing teams to ensure fit, finish, and

functional integration on the full vehicle.

• Support GD&T, tolerance analysis and mating-part studies to ensure panel gaps, flushness and NVH targets are met.
• Plan and review validation testing — UV/weathering, thermal cycling, vibration, impact, and material property testing
• with test labs.
• Manage BOM cost, part weight and material cost targets; identify value-engineering opportunities across programs.
• Own supplier/vendor technical interactions for plastic parts — RFQs, design reviews, tooling timelines and PPAP sign-

off.

• Maintain design documentation, drawings, ECNs and part release records in line with the product development / stage-

gate process.

Requirements

REQUIRED QUALIFICATIONS & EXPERIENCE

• B.E./B.Tech in Mechanical, Automobile, Production, Plastics or Polymer Engineering (M.Tech is a plus).
• 3–8 years of experience in mechanical design of plastic components, ideally within automotive, two-wheeler, or

consumer durables/EV OEMs or their Tier-1 suppliers.

• Demonstrated experience designing injection-molded exterior and interior plastic parts through to mass production

(multiple part/program launches).

• Strong working knowledge of plastic materials, additives, and their behavior under thermal, UV and mechanical

loading.

• Hands-on proficiency in 3D CAD (Creo/CATIA/SolidWorks/NX) and 2D drafting/GD&T as per ASME Y14.5.
• Practical exposure to mold design principles, mold-flow analysis (Moldflow or similar) and tooling processes.
• Experience working directly with tooling vendors and molders, including mold trials and defect troubleshooting.
• Familiarity with a formal stage-gate/PDP (product development process) and APQP/PPAP documentation.
• Good understanding of vehicle-level integration — panel fits, gaps, NVH and durability considerations.

PREFERRED / GOOD TO HAVE

• Prior experience specifically on electric two-wheelers or automotive body panels.
• Exposure to FEA basics for plastic part structural checks.
• Knowledge of sustainable/recycled plastic materials and their application in mobility products.
• Experience working in a fast-paced startup or new-program environment with tight timelines.