Nairobi, Kenya · Available for contracts

Patrice Oyende

Full-Stack Developer & Founder, AbelleGroup.

I architect and engineer high-performance mobile applications, secure backend APIs, and digital platforms across East Africa. As the founder of AbelleGroup Studio, I build solutions for fintech (M-Pesa STK Push, Paystack), proptech (CribSeek), and mobile health — taking ideas from concept to production-grade deployment.

View my work Get in touch

abellepatrice@gmail.com

patrice

Applications Shipped

Payment Integrations

2026

Africa Forward, UoN

Years Building

Expertise

Solid engineering.

I build web and mobile systems for startups that require bulletproof logic, real-time sync, and regional integration.

Security Scoping

Deny-by-default access controls, JWT integrations, and verified remediation against API vulnerabilities.

Offline-First Mobile

Reliable queue synchronization, query caching, maps, and state survival across application crash cycles.

Flagship Work

Featured platforms.

Flagship · PropTech

CribSeek

Full-stack housing and rentals platform for the Kenyan market — backend, mobile app, and admin dashboard solo build.

NestJSReact NativeExpoNext.jsM-Pesa

Key Deliverables

›Full-stack architecture across NestJS, React Native, and Next.js
›Integrated M-Pesa and Paystack payment processing
›Real-time messaging and notification system
›Selected: Africa Forward Youth & Innovation Week 2026, UoN

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Contract · Health Tech

DTLC Health Partner App

Mobile health and fitness platform. Delivered security auditing and functional testing across the entire application stack.

Node.jsExpressSupabaseReact NativeExpo

Key Deliverables

›Comprehensive security audit across the full codebase
›Push notification pipeline testing and verification
›Functional testing across core health-tracking features

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Flagship · Mobile Gaming · Offline

Gaming Picnic

100% serverless, offline-first mobile gaming suite packing 30+ party, strategy, trivia, and conversation games into a single pass-and-play app. Verified Android release APK available for direct download.

React NativeExpo RouterTypeScriptZustandChess.js

Key Deliverables

›30+ games built-in (Chess, Ludo with bots, Imposter, Mafia, Sheng Slang Quiz, Charades)
›100% offline-first architecture — zero backend, zero ads, and zero data connection required
›Pass-and-play multiplayer with privacy handoff screens and local timers
›Direct release APK build ready for immediate download and installation

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The stack