Open to product partnerships and ambitious builds

MISSA CONSTANT

Missa Constant BAIH — Full-stack product engineer

I design and ship multi-tenant SaaS, mobile products, and payment-ready platforms for real markets.

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Selected builds

Products shipped into the wild

01
Kally
2025
Founder / Full-stack
Multi-tenant appointment SaaS with public booking, team calendars, and Stripe billing.
Open project
02
Chooz
2024
Lead engineer / Product
Paid voting and event ticketing platform built for Côte d'Ivoire.
Open project
03
Toos
2024
Full-stack / Mobile
Social money-pool app on App Store & Play for group fundraising.
Open project
04
Blanble
2025
Founder / Full-stack
NFC digital business cards — tap once, share a full vCard.
Open project

Capability map

A stack tuned for shipping

Backend

NestJS
Node.js / TypeScript
Prisma / Drizzle
PostgreSQL
PHP / custom MVC
FastAPI
Socket.io
RabbitMQ

Frontend

React / Next.js
Tailwind CSS
Angular
Vite
i18n systems

Mobile

React Native / Expo
NativeWind
Background location / audio
FCM / push

Payments & Ops

Paystack / Wave / PayDunya
Stripe
Docker / Coolify
S3 / MinIO
Multi-tenant SaaS

Trajectory

Where the work has lived

2022 — Present · Abidjan, CI

Founder & Product Engineer

Sarrux

Building and operating product lines across voting, SMS, crowdfunding, NFC, booking, and commerce — from architecture to App Store release.

2019 — 2021 · Remote

Full-stack developer

Independent / Product studio

Shipped web and mobile systems for clients and personal products, specializing in APIs, dashboards, and payment integrations.

Contact

Tell me what you want to build