Jack Yeh, Designer in Sydney, New South Wales, Australia
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Jack Yeh

Verified Expert  in Design

Designer

Location
Sydney, New South Wales, Australia
Toptal Member Since
October 5, 2016

Jack is a senior product designer and front-end developer with extensive experience at growth-stage startups. He's designed products that are used by over 20 million users from 180+ countries each week. The growth Jack has unlocked has helped companies raise over $35 million in funding.

Product DesignUX ResearchPrototypingMobile App DesignSketchFigmaSaaSUser Experience (UX)UI DesignUX DesignUser ResearchiOSUsability TestingBrandingAdobe Suite

Portfolio

Work Experience

Freelance Product Designer | Front-end Developer

2012 - PRESENT
JCKY
  • Worked extensively with growth-stage startups, helping them reach more than 20 million WAUs and raise $35 million in funding.
  • Designed products in education, machine learning, biotech, and SaaS.
  • Designed and led user research projects to unearth customer insights and reach product-market fit. (Collaborated extensively with former Netflix Head of Research).
  • Designed growth strategies and experiments that improved signup rates by 60–210%.
  • Conducted in-person and remote user research, competitive analysis, and usability testing.
Technologies: CSS, HTML, JavaScript, React, Sketch, Figma

Lead Growth Designer

2017 - 2019
ClassDojo
  • Worked for ClassDojo, an SF-based edtech company (YC) which is actively used in 95% K-8 schools in the US, over 1 million classrooms in 180+ countries.
  • Led design on the growth team. Designed growth experiments that increased sign-up conversion by 60-210% for teachers, parents, and school leaders.
  • Solved system-level design problems for teachers, parents, school leaders, and students. Resulting products include Student Portfolios, School Insights, and the School Leader's app.
  • Led design on the Student Portfolios product.
  • Designed research projects to verify product hypotheses. Conducted school visits, user interviews, surveys, and user testing.
Technologies: CSS, HTML, JavaScript, React, Sketch, Figma

Co-founder | Creative Director

2014 - 2016
STEMN
  • Designed each of the platforms for researchers, students, and our aerospace institution partners.
  • Designed the UX, UI, brand strategy, marketing materials, and style guide.
  • Implemented Mixpanel, Segment, Google Analytics, and designed our internal analytics tool. Combined this data with qualitative user feedback to drive our design decisions and iterations.
  • Led user research, user interviews, user testing to inform product iterations.
Technologies: Google Analytics, Mixpanel, Mandrill, InVision, CSS, HTML, Adobe Illustrator, Adobe Photoshop

Design Engineer

2013 - 2014
German Aerospace Center (DLR)
  • Designed and built measurement and real-time synchronization software for the Oberpfaffenhofen Optical Ground Station.
  • Designed and developed image processing, data correction and consolidation software for the ALTAO research mission.
Technologies: R, MATLAB, C++, Adobe Creative Suite
2009 - 2012

Bachelor's Degree with Honors in Aerospace Design, Physics (Advanced)

The University of Sydney - Sydney, Australia

2011 - 2011

International Exchange Scholar in Aerospace Engineering

Purdue University - West Lafayette, IN, USA

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