Toptal: Mechanical Engineer

We’re looking for a highly experienced Mechanical Engineer who can hit the ground running on a fast-paced, short-term remote engagement. This is a hands-on design role for someone who thrives under tight timelines and can move from onboarding to meaningful output within days, not weeks. You’ll be working deep in Siemens NX on plastics-focused design challenges, contributing directly to parts that are headed toward injection molding production.

What You’ll Do

• Deliver mechanical design work in Siemens NX with a focus on plastic components for injection molding
• Design and refine TPU overmolded parts
• Manage heat insert placement and integration into plastic housings
• Apply functional dimensioning and geometric tolerancing to ensure manufacturability
• Perform tolerance stack-up analysis to validate fit and function across assemblies
• Support IP-rated enclosure design and button/user interface component design

What You Bring

• Strong, hands-on experience with Siemens NX
• Proven track record designing injection-molded plastic parts
• Experience with TPU overmolding
• Practical knowledge of heat insert management and integration
• Solid grasp of functional dimensioning and tolerance stack-up analysis
• Experience with IP-rated design
• Experience with button/user interface design
• Ability to start immediately and ramp up quickly with minimal onboarding time