Senior Product Designer based in
San Francisco

Focusing on taking products from 0 to 1, working across B2B and B2C spaces,
and designing input-metrics-driven solutions.

My Work

About

I'm a Senior Product Designer passionate about creating impactful digital experiences. With over a decade of experience, I've helped shape products from startup to scale, working closely with cross-functional teams to deliver solutions that users love.

My approach combines data-driven insights with empathetic design, ensuring every decision serves both business goals and user needs.

I believe great design happens at the intersection of user research, strategic thinking, and creative execution. Whether it's building a design system or launching a new product, I bring a holistic perspective that connects design, engineering, and business.

Serhii Kyryliuk

Experience

Jan 2025 - NOW, San Francisco, CA

Workday — Product Designer (contract)

  • Revamping a design system and creating a design system website for Workday’s internal and external users, including agencies and contractors.

ApR 2021 - Jul 2024, San Francisco, CA

Spokeo — Senior Product Designer

  • B2B RPC Product: As design lead, I aligned 15+ stakeholders and led 2 designers to launch a B2B people search platform, achieving 25 new clients, 92% retention, 90% CSAT, and 70% daily engagement.
  • B2C IDP Product: I led the design of a new Identity Protection tier, integrating credit info and analytics, driving a 12% user increase, 15% retention boost, and 20% revenue rise through cross-team collaboration.
  • Growth Design: Collaborated closely with marketing to revamp 15+ SEM landing pages and 3 payment pages, leading to a 25% increase in conversion rates.
  • Design Systems: Contributed to the Spokeo Design System, increasing adoption by 34% and ensuring consistent user experience.
  • Mentorship: Mentored 5 designers, created 15+ guide documents for  internal processes and user testing.
  • User Research: Conducted 200+ usability tests and interviews to improve user experience for Spokeo products.

Feb 2020 - APR 2021, San Francisco, CA

Hallo — Lead Product Designer

  • Growth Design: I led the product redesign, collaborating with the CEO, CTO, dev, and sales teams. The redesign resulted in a 100x user growth (400 to 40,000) and a 31% increase in CSAT.
  • Design Systems: Led the creation of a design system, collaborating with developers to integrate reusable components, increasing development speed by 20%.
  • Mentorship: Led and managed a team of 3 product and graphic designers, fostering their growth and enhancing team collaboration.

Feb 2017 - AUG 2018, Kyiv, Ukraine

Big Four Client via Trinetix — Product Designer

  • Documents Digitalization Product: Led the design of a financial digitalization app using a trained recognition model, reducing manual entry errors by 85% and speeding up processing by 35%.
  • Legal Review Product: Led the design of a legal review app with automated alerts, improving response time by 30%, review speed by 25%, and ensuring accuracy and compliance.
  • Parking IOS Mobile App: Led the design of a parking app, reducing parking time by 30%, shift overlaps by 20%, and achieving 80% user satisfaction.
  • Design Systems: Developed 10 reusable components for a design system, implemented across all teams and vendors.

MAR 2016 - FEB 2017, Kyiv, Ukraine

OSD Group — Product Designer

  • Led end-to-end design for promotions and e-commerce websites, achieving an average 30% increase in conversion rates and a 20% boost in user engagement across all projects.

JuN 2015 - FEB 2016, Kyiv, Ukraine

Bet4Rate — Product Designer

  • Designed core pages, landing pages, referral sites, and payment flows for a sports prediction product, resulting in a 30% increase in user growth and enhancing overall user engagement.

AUG 2013 - JUN 2015, Kyiv, Ukraine

Upwork — Freelance Product Designer

  • Designed multiple landing pages, apps and did various graphic design projects.