About

Designer, researcher, and a big believer in starting small.

Portrait of Joseph Githumbi

I'm Joseph, a product designer based in Nairobi with 6+ years of experience helping companies craft customer-centric products through research-driven design.

I've designed for banking at KCB, fintech with Pezesha, agritech with Vet Mkononi and non-profits like Sote Hub. The common thread is listening closely to users, shipping a focused first version, and improving it with real feedback.

Away from design, I'm a big Formula 1 fan. If you're cheering for Oscar Piastri too, we should talk.

Experience

Where I've worked

  1. – Present

    2 yrs 5 mos

    KCB GroupCurrent

    UI/UX Designer · Contract

    Designing digital banking products, from self-service onboarding on the KCB app to a nano-SME lending product that disbursed KES 100M+ to 50,000+ businesses in its pilot.

  2. –

    9 mos

    Vet Mkononi

    Product Designer · Contract

    Led end-to-end design of a mobile app connecting farmers and pet owners with vets.

    Read the case study →
  3. –

    1 yr 9 mos

    Pezesha

    UI/UX Designer · Full-time

    Led research and design for the Pezesha Marketplace, lifting loan applications by 48%, and co-designed a merchant finance platform for NCBA Bank.

  4. –

    1 yr 3 mos

    Sote Hub

    Technical Lead · Full-time

    Trained entrepreneurs to launch 100+ websites with no-code tools and redesigned the hub’s site, growing traffic 35% in 60 days.

    Read the case study →
  5. –

    1 yr 10 mos

    Pezesha

    Junior Developer · Contract

    Built and maintained production web apps alongside the engineering team.

Education

Taita Taveta University BSc Mathematics and Computer Science

What I do