Freelancer profile translated to English.

Description

Senior Fullstack Developer | AI & Mobile Expert (5+ years of experience)

Specializing in creating robust architectures with NestJS, Next.js, and React Native, I help companies integrate AI solutions (OpenAI, Gemini, Claude) and develop scalable products.

My strengths:

AI Expertise: LLM integration, RAG, and process automation (LangChain, OpenAI API).

Mobile & Web: Cross-platform application development (iOS/Android/Web) serving over 10,000 users.

Performance: Architecture optimization (+40% performance on complex tools).

Fullstack & DevOps: Complete mastery of the product lifecycle, from design systems (Storybook) to deployment (Vercel, Render, AWS/GCP/Azure, CI/CD).

Let's talk about your project to transform your ideas into high-performing technical solutions.

Industry field of expertise

Languages

French
Fluent
English
Fluent
Spanish
Conversational
Kazakh
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Mirello
Founder & AI LLM Fullstack Mobile & Web Developer
HEALTH AND WELLNESS
November 2025 - Today (7 months)
Paris, France
Responsible for the complete product cycle: end-to-end development, testing, deployment
Integration of Gemini API, OpenAI
OpenAI Langchain React Native Gemini REST
Karavan (ex ImmiGuide)
Founder & Fullstack Developer
LOGISTICS AND SUPPLY CHAIN
December 2023 - January 2025 (1 year and 1 month)
Nice, France
Development of a complete cross-platform e-commerce platform with a scalable backend in Node.js (NestJS) and Websockets.
Microservices Architecture with MongoDB, PostgreSQL, and RabbitMQ for smooth data and queue management.
Responsible for the complete product cycle: from user research and UX/UI design to managing deployments on Azure Cloud.
Implementation of monitoring and automated notification systems to ensure application stability.
Integration of AI components (OpenAI, Google Gemini) for automation and improved user experience.
NestJs React Native AWS MongoDB OpenAI
Trace Software International (Group Trace) Company
Web Developer
ENERGY AND UTILITIES
September 2023 - Today (2 years and 9 months)
Paris, France
• Develop features from scratch (frontend + backend: API creation, controllers, services, repositories for each module),
•Message queue RabbitMQ, API Gateway, Redis, TDD with Cypress, Jest, Vitest
•Participation in evolutionary maintenance, technical documentation writing, agile backlog management in Jira, Confluence
•Development of an electrical diagram builder application, improving performance by 40% (React, Python);
•Design and development of micro frontends (React, Redux-Saga), serverless architectures with design patterns
•Collaboration with product and design teams to ensure an optimal user UX experience;
NestJs Next.js Redis redux Jest