Built with Path
Rey Mungai

Rey Mungai

Designer in Nairobi, Kenya

About

Product design leader with 11+ years building and shipping digital products at scale; including M-PESA, where I designed statement verification for 50M+ users. I have led design teams of junior and mid-weight designers, built design systems that hold quality across multiple squads, and worked in regulated and infrastructure-constrained environments where some of the the biggest design problems are trust and access.

Experience

2025 — Current

Founder & Design Lead at Suluhu Studio

Founded and run a design and product studio serving founders across Kenya, Nigeria, and South Africa. Advise client teams on raising design maturity and build AI-native products.

2023 — 2025

Senior Product Designer, Platform at KOKO Networks

Owned UX across the full customer lifecycle for a clean cooking platform serving 1M+ households. Introduced Design QA and documentation systems to reduce rework.

2021 — 2023

Senior Product Designer at Safaricom PLC

Designed digital statement verification for M-PESA’s 50M+ users, significantly reducing support tickets. Owned design system governance across a distributed, multi-team organisation.

2020 — 2021

Senior Product Designer at YLabs

Co-designed and launched Bohoka, a mobile-first mental health platform for youth in Rwanda. Conducted co-design workshops and behavioural testing in low-connectivity settings.

2020 — 2020

UX/UI Designer at Kwara

Redesigned SACCO digital banking onboarding for members with low prior digital banking exposure. Improved onboarding conversion post-launch.

2019 — 2020

Product Design Lead at Ajua Inc.

Led UX and product design for a customer-experience intelligence platform. Built the company's first design system and structured handoff documentation.

2017 — 2019

Product Designer at Jumia Group

Shipped e-commerce interfaces across multiple African markets. Introduced A/B testing to core conversion funnels.

Projects

Kauli

An AI diagnostic product designed and built end-to-end using Claude API, Replit, Vercel, and Airtable.

Daro

A cohort education programme for founders designed with behavioural change as the primary success measure.

Education

2026 — Current

Certificate in Behavioural Science in Public Policy at World Bank Group

2022

Certificate in UX Research at Scale at University of Michigan

2021

Certificate in Design Thinking for Business Strategy at University of Sydney

2015

Certificate in Audio Production at Music Technology Academy

2013 — 2014

Certificate in JavaScript & Android Development at eMobilis Institute

Skills

Product DesignDesign SystemsDesignOpsInteraction DesignInformation ArchitectureMobile-first UXPrototypingA/B TestingUsability TestingFigmaFramerSQLAI Product Building