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Experienced technical designer and product leader with 17+ years building consumer-facing experiences, leading teams, and shipping high-impact features at scale. I specialize in turning complex problems into simple, intuitive products and driving alignment across design, engineering, and product.

Founding Designer, AddGlow Jul 2023 - Dec 2024

  • Drove end-to-end product and design strategy, leading to a 24% sign-up rate and 19%-30% Day 30 retention, fueling user acquisition and engagement.
  • Built a scalable design library that ensured consistency across the product experience.
  • Designed and built key product features—including an email A/B testing framework, onboarding flows, and user profile pages—accelerating launch timelines and enabling faster experimentation.

Head of Design, Paper.xyz (acquired by thirdweb) Mar 2022 - Jun 2023

  • Designed a FIAT-onramp payment ecosystem for NFT purchases, increasing accessibility and expanding user reach beyond crypto-native audiences.
  • Shipped core Web3 tooling used by over one-third of blockchain developers, enabling builds across 700+ EVM chains
  • Developed a secure payout system that supported developers and creators in receiving sale proceeds.
  • Owned the product roadmap and defined success metrics, aligning internal stakeholders and prioritizing for impact.
  • Led wallet and checkout experiences that brought 500,000 users to Web3 and supported over $10 million in transactions.

Senior Design Manager, Twitch Apr 2015 - Nov 2021

  • Built and led a 12-person design team focused on Search, Discovery, and Chat—core features driving retention and engagement.
  • Partnered with leadership on product strategy and roadmap planning, aligning design needs with business goals.
  • Created a Product Development Process, reducing cross-functional misalignment and speeding delivery timelines.
  • Owned launch for new safety tools (Mod Dashboard, reporting features) that reduced creator churn and improved community trust.
  • Ran cross-functional design sprints to rapidly align teams around new initiatives and prototypes.

Product Designer, Twitch Aug 2013 - Apr 2015

  • Designed and developed the Twitch Xbox App UI, bringing Twitch to console audiences.
  • Led a full redesign of the Android app, improving mobile retention and feature discoverability.
  • Partnered with Microsoft, Oculus, Sony & Roku to expand Twitch across new platforms and onboard new viewers to Twitch.
  • Built TV app design systems that cut feature rollout time and scaled design across devices.
  • Designed Twitch's first merchandise store, contributing to a successful charity campaign.

Designer & Developer, Academia.edu Feb 2008 - Aug 2013

  • Rebuilt the frontend into modular, reusable components, significantly improving developer velocity.
  • Ran extensive user research to inform product direction and better serve the academic community.
  • Designed an onboarding flow that helped grow the platform from thousands to millions of users in a short few months.
  • Created a unified brand identity and design system, enhancing credibility and user trust.

Skills

Design Software

Figma • Adobe Creative Suite • Sketch • Illustrator • After Effects

Web Development

Cursor • VSCode • NextJS • ReactJS • Ruby on Rails • Tailwind CSS • HTML/CSS • Typescript • PostgreSQL

UXR & Prototyping

UserTesting • Balsamiq • A/B Testing frameworks • Surveys

Other

Product Strategy • Design Leadership • User Centered Design System • Hiring • Cross-Platform UX

This site was designed & built by me in NextJS, with Tailwind and Typescript. Hosted on Vercel.

2024 Jarques Pretorius