Jiaxin Lei
VersuniPhilips

In-house Product Design at Versuni (Former Philips Domestic Appliance)

Contributing across research, interaction design, prototyping, and validation within a confidential smart cooking project.

Philips dual-basket air fryer with open drawers

Duration

  • 5 months

Skills

  • Product Strategy
  • Product Design
  • User Research
  • Prototyping

Role

  • Product / UX Designer
  • Research, Workflow Prototyping

Team

  • 4 UX / Product Designers
  • Physical Product Design Team
  • Project Managers
  • Engineer Team
  • UX Researchers

Overview

In-house Product Development at Versuni

My second internship gave me the opportunity to work in an in-house product environment and experience how a product evolves through a real development process.

I joined an ongoing confidential smart cooking project after its first prototype and usability study, contributing across research, UX definition, prototyping, testing, and refinement.

My Role & Contribution

Project Ownership

Research & Alignment

I helped synthesize insights from the first usability study, participated in workshops to define UX fundamentals, and conducted competitive research on existing smart cooking products.

Interaction & UI Direction

I took stronger ownership in translating the team’s UX direction into concrete screen-based experiences, shaping interaction flows, information hierarchy, and the overall visual direction of the interface.

Prototype & Validation

My screen designs were implemented into a testable appliance prototype and used in subsequent usability studies. I then contributed to refining the experience based on feedback from both internal and external testing.

Project timeline

Where I Joined the Process

Project timeline from first prototype through second usability study, with a marker showing where I joined at insight synthesis

Insight Synthesis

Turning Early Feedback into Design Directions

Synthesizing the first round of feedback

Clustered findings from the initial usability study to identify recurring patterns and discussion areas.

Defining UX fundamentals

Joined workshops to align on the overall use flow, the role of each touchpoint, and the product’s interaction principles and tone of voice.

Building a shared market reference

Explored existing smart cooking products to extract interaction patterns and design takeaways that informed the concept direction and supported cross-team alignment.

Competitor product comparison board with quick study tags
Hands-on testing of competitor cooking products
Hands-on testing & user interviews for competitor analysis

Design Iteration

Turning Early Feedback into Design Directions

Together with team, I defined the visual and interaction direction for the appliance UI, exploring how information, feedback, and controls could work within the physical constraints of the screen.

Iterations informed by user testing
Visual example: Portfolio-safe dummy UI, redesigned using a publicly available product as a visual substitute.

Design Validation

Validating the direction

The selected direction was implemented in a testable prototype and evaluated in a moderated user test, focusing on usability, interaction clarity, and confidence during cooking tasks.

What we tested

Focused on whether users could understand the interaction flow, identify key information, and confidently move through cooking tasks.

What we observed

The test highlighted where information hierarchy, guidance, and system feedback needed to be clearer during multi-step interactions.

How it informed the design

Findings were brought back into the design process to refine interaction details and improve clarity before further development.

Tablet and sticky notes from a moderated user test
Notes from user test

Reflection

Compared with my consultancy experience, working in-house gave me a closer view of how design decisions evolve through a real product lifecycle. I learned to balance usability with hardware, engineering, business, and implementation constraints while taking broader ownership from research through validation.