RK DEVELOPMENT
Excellence & Innovation
Main Professional Website : https://riisalthkraa.github.io/RKDEVELOPPEMENT/ Fully Functional Applications
Available for new projects

Expert Developer en
Custom Applications
Construction • Education • Healthcare

Design and development of technologically advanced professional applications.
Smart solutions integrating AI strategically to maximize your efficiency.

9
Complete Applications
450K+
Lines of Code
18
Months of Development
25+
Technologies
View My Projects Contact Me

Scroll

What I Offer

Professional Services

Development of complete software solutions tailored to your business needs

Healthcare Applications

Digital health solutions with AES-256 encryption and multi-provider AI. Discover CareLink: complete family management, ML predictions and automatic medical document analysis.

  • Electronic medical records
  • GDPR compliance & security
  • Intuitive interface for professionals
Expertise

Construction Applications

Complete solutions for construction professionals. AutoCalc OptiDevis: AI cost prediction, 100+ features, 140 automated tests, 100% offline mode. Transform your site management.

  • ML predictive cost AI
  • 100% offline mode
  • 140 automated tests

Educational Applications

Intelligent learning platform with AI. Cap'taine: 2000+ exercises CP-3ème, 13 mini-games, multi-provider AI chatbot, ML progress analysis. Free and 100% local.

  • 2000+ interactive exercises
  • Complete gamification (55 badges)
  • Integrated multi-provider AI

PC Diagnosis & Repair

Technological innovation with Augmented Reality. FixMate: 3D AR guides, Digital Twin, AI failure prediction (85% accuracy), 60+ automated tools. The future of IT troubleshooting.

  • Unique 3D AR guides
  • AI prediction 85% accuracy
  • 3D Digital Twin of PC

Interactive Fiction

Immersive narrative experiences with advanced game mechanics. 2 complete gamebooks, 40h+ gameplay, 20+ endings per story. Deep branching narrative and unique systems.

  • Deep branching narrative
  • Custom game systems
  • Immersive interface

Advanced Web Applications

Technologically advanced web solutions with integrated AI. Modern architecture, optimized performance, premium user experience. Cutting-edge technologies for exceptional results.

  • Modern responsive design
  • Performance & optimisation
  • Compatible tous navigateurs
17 months of intensive development

Global Technical Summary

July 2024 - November 2025: Development of 8 complete professional applications

404,617
Total Lines of Code
8,500+
Development Hours
25+
Frameworks & Languages
8
Major Applications

Complete Technical Stack

Frontend & Desktop

React 18 • TypeScript • Tailwind CSS • Material-UI • Electron • React Native • Expo

Backend & API

Node.js • Python • PHP Laravel • FastAPI • REST API • WebSocket • SQLite • PostgreSQL

Artificial Intelligence

OpenAI GPT-4 • Claude (Anthropic) • Google Gemini • Ollama • TensorFlow.js • XGBoost • Predictive ML

Tools & Quality

Git • Turborepo • Jest • Testing Library • 140+ Automated Tests • CI/CD

4
Desktop Applications (Electron)
2
Web Applications (Laravel, React)
1
Mobile Application (React Native)
2
Interactive Games (Python, JavaScript)
My Achievements

Portfolio

Discover my professional projects and creations

FREE Showcase Application
CareLink

CareLink

Digital Health

Revolutionize your family health management! Free desktop application with 4 AI providers (GPT-4, Claude, Gemini, Ollama), AES-256 military-grade encryption and ML predictions. Analyze your medical documents automatically, track 50+ health indicators. 39,487 lines of code - Professional technology accessible to everyone.

4 AI Providers ML Predictions AES-256 50+ Features
39K LOC
85% Complete
4 AI Providers
Discover CareLink
FREEMIUM
FixMate

FixMate

Professional Management

The future of PC diagnosis is here! Unique in the world with 3D AR guides and Digital Twin of your computer. AI predicts your failures with 85% accuracy. 60+ automated tools save you hundreds of euros in repairs. 43,687 lines - Unprecedented technological innovation!

3D AR Guides Failure Prediction Digital Twin 60+ Features
43K LOC
80% Complete
AR Unique
Discover FixMate
LIFETIME LICENSE 300€
AutoCalc OptiDevis

AutoCalc OptiDevis

Construction Management

Transform your construction management! AI predicts your costs accurately (Machine Learning), 100% offline for total security. 100+ professional features, multi-company, 28 themes, 140 automated tests guaranteeing maximum reliability. 154,144 lines - The most complete construction solution on the market for €300 lifetime!

Predictive AI 100% Offline 140 Tests 100+ Features
154K LOC
95% Complete
28 Themes
Discover AutoCalc OptiDevis
100% FREE WEB + DESKTOP VERSION
Cap'taine

Cap'taine

Education & AI

Give your children the best - 100% FREE! Revolutionary educational assistant CP-3ème with 2000+ interactive exercises, 13 captivating mini-games. 4-provider AI chatbot, complete gamification (55 badges), personalized ML analysis. Available web AND desktop, 100% local and private. 45,789 lines - Smart education accessible to everyone for free!

Multi-Provider AI 2000+ Exercises 55 Badges 100% Local
45K LOC
100% Complete
13+ Mini-Games
FREE 2 GAMES
Interactive Stories

Narrative Gamebooks

Interactive Fiction

Dive into 2 FREE narrative epics! The Nameless Ronin (Feudal Japan) and The Seal of Five (Dark Fantasy). 40h+ of intense gameplay, ultra-deep branching narrative, 20+ endings per game. Unique combat and progression systems. Discover stories that leave a mark - 100% free, 100% passion!

Python + JS 40+h Gameplay 20+ Endings 100% Free
2 Complete Games
40+h Content
20+ Endings
Discover the Games
Other Achievements

Additional Projects & In Development

Other applications and projects currently being finalized

Royaume des Sandwiches

Free Showcase Website

Professional website created free of charge for a local merchant. Modern and responsive design to showcase products and services. Example of free community service.

HTML/CSS/JS Responsive 100% Free
Visit the Site

Decoded

Symbolic Analysis

Interactive platform for symbolic analysis of The Economist annual covers (2017-2026). 3D animations with Three.js, sacred geometries, parallax effects and immersive occult design.

Three.js 3D Animations Immersive Design
Explore Decoded

JANUS v5.1

Cosmological Simulation

Interactive simulator of the JANUS bimetric cosmological theory with DESI 2024-2025 data. Real-time 3D visualization of 60+ galaxies, physics paradigm comparison, dynamic controls.

Three.js WebGL Advanced Physics
Explore JANUS

AppForge

In Development - 70%

No-code/low-code application generator with AI. Create complete applications via visual interface and intelligent assistance. Advanced microservices architecture.

React + TypeScript Laravel AI GPT-4
🚧 Expected completion Q1 2026

MatchPro AI

In Development - 65%

Intelligent networking platform for professionals. Automatic AI matching, semantic profile analysis, personalized recommendations. Multi-tenant SaaS.

React Native FastAPI Sentence Transformers
🚧 Expected completion Q2 2026

LocaMalin

In Development - 60%

Intelligent rental management platform with AI rent prediction, market analysis, complete administrative automation. PostgreSQL + advanced ML.

Laravel PostgreSQL Predictive ML
🚧 Expected completion Q2 2026
Technical Stack

Skills & Technologies

Modern and proven technologies for high-performance and scalable applications

Frontend

React
TypeScript
CSS3 / SCSS
JavaScript ES6+
Responsive Design

Backend & Database

Node.js
SQL / NoSQL
Firebase
PostgreSQL
REST API

Tools & Methodologies

Git / GitHub
Agile / Scrum
Testing (Jest, etc.)
CI/CD
UI/UX Design

Areas of Expertise

Artificial Intelligence
Security & GDPR
Construction Management & Entreprise
Business Algorithms
Educational Applications

Main Skills

Frontend Development 95%
Software Architecture 90%
UI/UX Design 88%
Medical Applications 92%
About

VIEY David

Expert Developer • Bloodmistik

Passionate developer specialized in creating technologically advanced custom applications, with expertise in construction, education and healthcare. 17 months of intensive development (July 2024 - November 2025) resulting in 8 complete professional applications totaling more than 404,000 lines of code.

My approach combines technical excellence and artificial intelligence used strategically (GPT-4, Claude, Gemini, Ollama). Expertise in predictive Machine Learning, 3D Augmented Reality, AES-256 military-grade encryption, and innovative architectures. All my applications are truly functional and deployed.

Technological innovations: Multi-provider AI with automatic fallback, 3D AR guides unique in the world for PC repair, intelligent predictions via ML (health, failures, construction costs), 100% offline mode with synchronization. Quality guaranteed by 140+ automated tests on my main applications.

Strategic AI

Artificial intelligence used intelligently and precisely

Technological Innovation

3D AR, predictive ML, advanced architectures

Real Applications

All my apps are functional and deployed

VIEY David - Expert Developer
Transparent Pricing

Pricing & Services

Competitive prices for quality professional solutions

Custom Development

Hourly Rate

45€ /heure
  • Custom Development
  • Professional and tested code
  • Complete Documentation
  • Technical Support Included
  • Unlimited Modifications
Request a Quote

Essential Showcase Website

Perfect to start

800€ package
  • Modern responsive design
  • 3 à 5 pages
  • Contact Form
  • Basic SEO optimization
  • Optimized mobile version
  • Delivery within 15 days
Start my project

Pro Showcase Website

Complete and efficient

1500€ package
  • Premium customized design
  • 7 à 12 pages
  • Animations & interactions
  • Advanced SEO + Analytics
  • Integrated Blog
  • Multi-language (option)
  • 1 year hosting included
Request a Quote

E-commerce Website

Complete online store

2500€ starting from
  • Unlimited product catalog
  • Cart & secure payment
  • Stock & order management
  • Admin dashboard
  • Automated emails
  • Complete training
Request a Quote
Popular

Web Application

Complete business solution

On quote
  • In-depth needs analysis
  • Scalable architecture
  • Secure database
  • Administration interface
  • AI integration possible
  • Automated tests
  • Maintenance and support
Request a Quote

Mobile Application

iOS & Android

On quote
  • React Native (cross-platform)
  • Native iOS/Android design
  • Offline mode possible
  • Publication on stores
  • Backend included if necessary
Request a Quote

Desktop Application

Windows, Mac, Linux

On quote
  • Electron (multi-platform)
  • Optimized performance
  • Simplified installation
  • Offline operation
  • Automatic updates
Request a Quote

Maintenance & Support

Monthly package

150€ /month
  • Bug fixes
  • Security updates
  • Priority technical support
  • Regular backups
  • 5h de modifications/month
Subscribe

All prices exclude VAT. Free personalized quote within 48h. Installment payment possible for projects over €2000. Satisfaction guaranteed or refund.

Let's talk about your project

Contact

Have a project? Let's discuss your needs together

Contact Information

Location

France • Available remotely

Availability

Open to new projects

Ready to get started?

Contact me to discuss your project and get a personalized quote.

  • ✓ Quick response (24-48h)
  • ✓ Free and detailed quote
  • ✓ Personalized advice
  • ✓ Complete support

Send Me a Message

Describe your project and I will get back to you as soon as possible.

Send an Email

Why choose me?

  • Custom solutions adapted to your needs
  • Expertise in medical and professional applications
  • Quality code and complete documentation
  • Support and maintenance guaranteed
  • Respect for deadlines and budget