Senior Mechanical & Industrial Design Engineer, Hardware

Our hardware engineering team in Taiwan designs and builds the physical payment devices at the heart of that experience—products like the Stripe Reader S700 and Stripe Reader M2. We are expanding this team and are looking for an experienced Senior Mechanical & Industrial Design Engineer who can own both the structural engineering and the aesthetic form language of our next generation of payment terminals. This is a blended role: you'll be equally comfortable driving DFM on a plastic enclosure and sketching form concepts that express Stripe's design identity in hardware.

• Lead ideation and concept development through rapid hand sketching, digital sketching, and physical foam or 3D-printed models to explore form factors early in the product lifecycle.
• Define the visual and tactile design language of Terminal hardware—proportion, form, surface transitions, button feel, and overall product character.
• Produce photorealistic product renders using KeyShot or similar tools to communicate design intent to cross-functional teams and executive stakeholders.
• Define and manage CMF (Color, Material, Finish) specifications, working directly with suppliers to qualify target surfaces, textures, and coatings. 
• Manage packaging design for the products, working directly with suppliers to qualify the final deliverables and out-of-box experience. 
• Apply ergonomics and human factors principles to ensure products are intuitive and comfortable across a diverse range of users and environments.
• Maintain visual consistency and brand coherence across the Terminal hardware product family in alignment with Stripe's design identity.

• Design mechanical components and assemblies using SolidWorks/Creo, adhering to professional engineering standards.
• Review mechanical designs and drawings, assess manufacturability, and resolve technical problems.
• Lead and plan problem-solving activities, applying scientific approaches such as tolerance analysis, CAE/FEM simulations, DOE, and physical prototyping.
• Independently analyze and verify mechanical designs, identifying risks and proposing mitigations.
• Manage BOM cost and design schedules from a mechanical engineering perspective.
• Prepare mechanical engineering deliverables including BOMs, component specifications, and support FMEA activities.
• Design fixtures and calibration processes for high-precision mechanical assemblies.
• Verify and qualify components in first-article builds from suppliers, and participate in pilot production.
• Produce and maintain engineering documents including specifications, DFx guidelines, technical reports, and gate review packages.
• Partner with Quality and Reliability teams to ensure successful validation outcomes and drive continuous enhancement of hardware durability standards.
• Support product compliance and certification activities (e.g., PCI, regulatory certifications).

We're looking for someone who meets the minimum requirements listed below. If you meet these requirements, we strongly encourage you to apply. The preferred qualifications are a bonus, not a requirement.

• Bachelor's degree in Mechanical Engineering, Industrial Design, or a closely related field; a Master's degree in either discipline or Product Development is preferred.
• 5+ years of hands-on product design experience spanning both mechanical engineering and industrial design, with a portfolio of consumer or commercial hardware products.
• Demonstrated ability to design consumer-grade plastic enclosures for handheld products such as smartphones, tablets, or payment terminals, from concept through mass production.
• Ability to communicate design concepts through hand sketching or digital sketching tools at the speed of a design conversation.
• Solid understanding of manufacturing and mechanical production processes, with direct experience taking ID concepts through DFM and into tooling.
• Proficiency in mechanical CAD software (SolidWorks required; Creo a plus).
• Expertise in creating detailed 2D drawings and performing GD&T and tolerance analysis.
• Familiarity with mold design, FAI processes, and CPK analysis.
• Experience defining CMF specifications and collaborating with suppliers to achieve finish quality targets.
• Experience managing supplier and factory relationships.
• Strong written and spoken English and Mandarin communication skills.
• Willingness to travel internationally, including to Hong Kong and mainland China, as needed.

• Proficiency in rendering software (KeyShot strongly preferred; VRED or Blender also valued) to produce studio-quality visuals for internal reviews and marketing.
• Experience maintaining a coherent design language across a multi-SKU hardware product family or accessory ecosystem.
• Familiarity with ergonomics methodology—grip studies, anthropometric data, usability evaluations—applied to handheld device design.
• Experience with POS hardware, payment terminals, or consumer electronics peripherals.
• Knowledge of PCI hardware requirements, material properties, and associated manufacturing processes.
• Proficiency in thermal calculations and understanding of plastic material properties.
• Experience with mechanical simulation tools and metal part design.
• Ability to create compelling design presentations for cross-functional and executive audiences, clearly articulating the rationale behind design decisions.