Karl Gerard Tekam Kouam

I build robust systemsand unforgettable games.

Full-Stack Software Engineer & Game Developer — building web, mobile, and backend software, and games, with the same rigor.

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About

I build production-grade software — web apps, mobile apps, backend systems — and I build games, each its own craft, using Unity, React, Next.js and Django.

Services

What I can build for you.

Studios and startups bring me in when the product has to work for real users from the first day. Pick the closest fit, or bring me the whole project.

Game development
Games that feel good in the hand and hold up with real players and real money: smooth animation, real-time multiplayer, and game logic that stays consistent for every player.
You get
- Unity games for mobile and desktop
- Web games and live displays (PixiJS, GSAP, Three.js)
- Casino and betting games: keno, crash, lottery draws, live odds
- Real-time multiplayer backends
- Unity
- C#
- PixiJS
- GSAP
- Three.js
- WebSockets
See it inRoisbet games
Web apps & platforms
Your users get an app that works on launch day, and your team gets the back-office to run it. I have built e-learning, booking and marketplace platforms end to end.
You get
- Customer-facing web apps and SaaS
- Admin dashboards and back-offices
- Payments, notifications, roles and permissions
- SEO-ready, bilingual sites
- Next.js
- React
- TypeScript
- Django
- PostgreSQL
See it inLDN Ilios Rihenien
Mobile apps
One Flutter code base for Android and iOS, and the backend that keeps orders, accounts and payments in sync.
You get
- Android and iOS apps in Flutter
- Multi-app products (customer, partner, rider)
- Push notifications and live tracking
- Store-ready builds
- Flutter
- Dart
- Django REST
- Firebase
See it inAvol
Backend, architecture & infrastructure
APIs and servers sized for the traffic you expect, then deployed, backed up and monitored, so the product still runs six months after launch.
You get
- REST APIs and background jobs
- Architecture for scale and real time
- Docker deployments, CI/CD, TLS, backups
- Self-hosted or cloud, your choice
- Python
- Django
- Celery
- Redis
- Docker
- Nginx
See it inLDN Bolo

How we work together

01
Scope
We agree on the goal, the users and what “done” means. You get a clear plan and estimate.
02
Build in short iterations
You see working software every week and steer while it is cheap to change.
03
Launch and follow-up
Deployment, monitoring and handover documentation, then maintenance if you need it.

Tell me about your project

Career

Where I've worked.

Game & Full-Stack Developer — Roisbet
October 2025 — Present
Yaoundé, Cameroon
- Build the live draw displays of the betting catalogue: a real-time keno board animated with PixiJS 8 and GSAP, a 3D Loto 5/90 draw studio, and Spin2Win.
- Develop the crash game “Pilot” and the live odds board of AfriKGoal, where prices must update instantly and stay consistent for every player.
- Ship Unity game clients for the casino catalogue and a real-time multiplayer Ludo game, with Next.js for the web front ends that host them.
Software Engineer — Seed
November 2024 — October 2025
Yaoundé, Cameroon
- Developed a 3D multi-game platform in Unity that brings Ludo, Monopoly and Scrabble into one fantasy universe, with custom characters, superpowers and visual effects.
- Built Ilios end to end, web client and admin dashboard (React, TypeScript, Firebase): advertisers plan campaigns by screen, district and time slot; admins approve them, with real-time notifications to both sides.
Web Developer Intern — EDC Cameroon
July 2023 — September 2023
Yaoundé, Cameroon
- Designed and developed a website mockup for Electricity Development Corporation (EDC) using HTML, CSS (Bootstrap), and JavaScript.

Selected Work

Things I've built.

E-learning platform
LDN — École de Destinée
The complete online school of a leadership academy: learning paths, cohorts, quizzes, verifiable certificates, live classes and community, paid with mobile money.
- React
- TypeScript
- Django
- PostgreSQL
- Celery
- LiveKit
- Docker
Read the case study
Mobile apps · Food delivery
Avol
Food delivery for Cameroon: a customer app, a restaurant app and a rider app in Flutter, on one Django API.
- Flutter
- Dart
- Django REST
- PostgreSQL
- Firebase Cloud Messaging
- Docker
Read the case study
Web platform · Advertising
Ilios
Self-service booking for a network of digital ad screens in Yaoundé: advertisers plan campaigns by screen, district and time slot; the operator approves and schedules them.
- React
- TypeScript
- Firebase
- Cloud Functions
- shadcn/ui
Read the case studyLive
Backend & back-office · Marketplace
Bolo
Backend and operations back-office of a home-services marketplace in Cameroon: missions, worker vetting, quotes and invoices, real-time notifications.
- Django
- DRF
- PostgreSQL
- Redis
- Celery
- Channels
- React
Read the case study
Personal product · EdTech
Rihenien
My own product: a gamified way to learn JavaScript, Python and C, with a lesson journey, an in-browser code editor, XP, streaks and leagues.
- Next.js 16
- React 19
- TypeScript
- Tailwind CSS
- Zustand
- Monaco
Read the case studyLive
Game · Unity
Metoan
Game-jam puzzle duel on a checkered board: complete squares to score, maximise your gains and block your opponent before they take over.
- Unity
- C#
Private repository

Where it started

Early projects

School and learning projects, kept here to show the path.

2024MboaLingoFlutter app for collaborative translation and learning of local dialects, with a Flask REST API.Flutter · Flask
2024VidShare (Source)Video-sharing front end in React and Material UI on top of the YouTube API.React · Material UI
2023DrawApp (Source)JavaFX drawing tool: create, fill and move shapes, and read their measurements.Java · JavaFX
2023Flappy Bird (Pygame) (Source)One-button arcade game written from scratch in Python.Python · Pygame
2023Monty (Source)Stack-and-queue bytecode interpreter in C.C
2023Simple Shell (Source)UNIX command interpreter in C (team project): execution, PATH lookup, builtins.C · Linux
2023EDC website mockup (Source)Responsive website mockup for Electricity Development Corporation (internship).HTML · Bootstrap
2023printf (Source)Re-implementation of C's printf: variadic functions and format specifiers.C
2022Snake (Source)My first game: the classic snake, in Python.Python · Pygame

Toolbox

What I work with.

Languages

C
C++
C#
Java
JavaScript
TypeScript
Python
Dart

Frameworks & Libraries

React
Next.js
Node.js
Bootstrap
Tailwind CSS
Flask
Django
Flutter
Pygame
JavaFX
Unity

Databases

SQL
PostgreSQL
MySQL
MongoDB
Redis
Firebase

Tools & Platforms

Git
Linux
VS Code
Visual Studio
Android Studio

Education

How I got here.

July 2023 — February 2025
ALX Africa
Software Engineering Program
Online
September 2019 — September 2024
National Advanced School of Engineering of Yaoundé (ENSPY)
Engineering Degree in Software Engineering and Game Development
Yaoundé, Cameroon
September 2018 — June 2019
Baccalauréat C
High School Diploma in Mathematics and Physics
Yaoundé, Cameroon

Certifications

My Certifications.

Reach me directly

I build robust systemsand unforgettable games.

What I can build for you.

Game development

Web apps & platforms

Mobile apps

Backend, architecture & infrastructure

How we work together

Where I've worked.

Game & Full-Stack Developer — Roisbet

Software Engineer — Seed

Web Developer Intern — EDC Cameroon

Things I've built.

LDN — École de Destinée

Avol

Ilios

Bolo

Rihenien

Metoan

Early projects

What I work with.

Languages

Frameworks & Libraries

Databases

Tools & Platforms

How I got here.

ALX Africa

National Advanced School of Engineering of Yaoundé (ENSPY)

Baccalauréat C

My Certifications.

Software Engineering Program — Back-end Specialization

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