Illustrated portrait of Sammy Musyoki

Route 254

Nairobi → Production

Open to collaborations and full-time roles

SammyMusyoki

I design and build complete products, from the API to the app in your pocket. Full-stack engineer at Mdadda, and co-founder and CEO of SpotRentt, which I'm building end to end.

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Work

6 projects

Mdadda

Software engineer, full stack2025 – Present

Mdadda

A platform for hiring trusted, trained domestic workers in Kenya. Helpers certify through an in-app academy, then get matched with households through vetted placement agencies.

  • One FastAPI backend powering six web and mobile apps across nine user roles.
  • A guided hiring workflow with live video interviews, AI-drafted contracts with e-signing, and M-Pesa and Paystack payouts.
  • Machine-learning shortlists, and real-time messaging that keeps contact details on the platform.
  • FastAPI
  • PostgreSQL
  • Next.js
  • Expo
  • LiveKit
  • M-Pesa
Visit site
SpotRentt

Co-founder & CEO2026 – Present

SpotRentt

Rental search for Nairobi where every listing shows when it was last confirmed vacant, with dedicated apps for renters, landlords and movers. Now in early access.

  • Architected and built the whole platform: a FastAPI API, three Expo apps and two Next.js web apps.
  • Map search on PostGIS and H3, with exact addresses unlocked through M-Pesa STK push.
  • Passkey sign-in, rotating tokens and an edge-deployed landlord portal on Cloudflare.
  • FastAPI
  • PostGIS
  • Expo
  • Next.js
  • Cloudflare
  • M-Pesa
Visit site
Fibroid Embolization Kenya

Software developer2023 – 2024

Fibroid Embolization Kenya

A patient-education platform that helps Kenyan women understand uterine fibroids and their treatment options, built for the Fibroid Embolization Kenya initiative.

  • React
  • TypeScript
View code
Happiness Beyond

Full-cycle developer

Happiness Beyond

A donations platform connecting rural communities with resources and supporters, with secure online giving through Stripe.

  • Next.js
  • TypeScript
  • Stripe
Nativecn-ui

Open-source contributor2024

Nativecn-ui

Open-source, copy-and-paste UI components for React Native apps. I designed and contributed the DropDown component.

  • React Native
  • TypeScript
Visit site View code
CodeWeavers Africa

Open-source contributor2024

CodeWeavers Africa

A developer community platform. I built user registration and email verification in the Django REST API and migrated the frontend to Next.js.

  • Django REST
  • Next.js
  • TypeScript
View code

Experience

4 stops so far

  1. 2026 – Present

    Co-founder & CEO

    SpotRentt

    • Lead product and engineering for a rental platform built on verified vacancies.
    • Designed the architecture and built every app myself, from the FastAPI backend to the renter, landlord and mover experiences.

  2. 2025 – Present

    Software Engineer, Full Stack

    Mdadda

    • Build and run the platform end to end: the API, the household, agency and admin web apps, and two mobile apps.
    • Own payments, real-time messaging, video interviews and the training academy.

  3. 2023 – 2025

    Software Developer

    Independent & open source

    • Delivered web platforms for a health initiative and a community non-profit.
    • Contributed to Nativecn-ui and CodeWeavers Africa, and earned HackerRank's Software Engineer and Frontend Developer (React) certifications.

  4. 2020 – 2024

    Student

    Kenyatta University

    • Studied at Kenyatta University while teaching myself full-stack development.

  5. Next stop

    Your team →

Stack

15 tools · 4 areas

Frontend

  • TypeScript
  • React
  • Next.js
  • Tailwind CSS

Mobile

  • React Native
  • Expo
  • NativeWind

Backend

  • Python
  • FastAPI
  • PostgreSQL
  • Celery & Redis

Platform

  • M-Pesa Daraja
  • LiveKit
  • WebSockets
  • Cloudflare

Writing

1 post

All writing →

Contact

Let's build what's next.

Planning a new platform, scaling a product, or looking for a full-stack engineer to join your team? Tell me what you're building and where I can help.

sammymusyoki328@gmail.com
Download CV