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Ny Ando AndrianasoloNA

Ny Ando Andrianasolo

Javascript & Python Backend Developer

€125/day
Paris, FR
0-2 years
JavaScript
Python
Nest JS
Node.js
FastAPI

Average response time: 1 hour

Freelancer profile translated to English.
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About Ny Ando

Backend Web Developer specializing in JavaScript/TypeScript (NestJS) and Python (FastAPI), I work on products with high performance, security, and real-time constraints (REST API, WebSocket, microservices).

I have recently worked on:

- Microservices for an online betting/casino platform: betting logic, transactions, provider integration (payment/games), scaling and resilience;
- A responsive web dashboard for real-time monitoring of EV charging stations: modular frontend architecture, REST integration, UX/performance optimization, and data centralization via TanStack Query.

What I can bring:

- Design & development of secure, maintainable, and fast REST/WebSocket APIs
- Microservices / event-driven architecture (RabbitMQ), caching (Redis), SQL databases (MySQL/PostgreSQL)
- Third-party integrations (payment, external services), observability, and production reliability
- Agile/Scrum (Jira), Git, Docker work

Stack: NestJS, TypeScript, Node.js, FastAPI, React (Vite), MySQL, Redis, RabbitMQ, Docker, WebSocket, Git.

  • Malagasy

    Native or bilingual

  • French

    Conversational

Remote only
Primarily works remotely

Experience

  • VICTUS
    Nest JS Backend Developer
    VIDEO GAMES AND ANIMATION
    December 2025 - Today (6 months)
    Tananarive, Madagascar
    Context
    Development of backend microservices for an online betting and casino games platform (sportsbook, live betting, slots), with high demands on performance, security, and availability.

    Key Missions

    • Design, development, and maintenance of secure, robust, and low-latency REST and WebSocket APIs
    • Implementation of bettingbusiness logic (oddsmanagement, validation, settlement) andfinancialtransactions
    • Integration ofpayment providers and game**providers (casino** )
    • Optimization of service scalability (high load) and resilience (fault tolerance)
    • Implementation of observability and automation tools for operational monitoring and compliance

    Achievements (Impact)

    • Delivery of thebetting core processingservice with a response time< 100 ms
    • Reduction of fraud risks by 70% through a business rules engine and automated controls
    • Improvement of availability to 99.95% thanks to a WebSocket architecture redesign (stability, reconnection, load management)
    • Automation ofcompliancereports: saving approximately 15hours/month

    Technical Environment
    NestJS, TypeScript, MySQL, Redis, RabbitMQ, Docker, WebSocket, Git
    Docker RabbitMQ Redis
  • Groupe VISEO
    React Developer & Web Integrator
    AUTOMOBILE
    June 2025 - December 2025 (6 months)
    Tananarive, Madagascar
    Context
    Development of a responsive web dashboard dedicated to the management, control, andreal-time monitoringof electric vehicle charging stations.

    Key Missions

    • Development and maintenance of a responsive user interface with advancedstate management
    • Design of a modular frontend architecture based onreusablecomponents
    • Integration and consumption of **data streams via REST APIs (connection**, synchronization, refresh)
    • Optimization ofUXand performance (loading times, responsiveness, stability)

    Achievements (Impact)

    • Delivery of a real-time dashboard for monitoring,analysis, and planningof charging sessions
    • Notable improvement in interface fluidity and responsiveness (better state and refresh management)
    • Centralization and reliability of client-side data thanks to TanStack Query (caching, invalidation, controlled refetching)

    Technologies
    React (Vite), TanStack Query, JavaScript (ES6+), FastAPI, Git
    React.js FastAPI Websocket
  • Entreprise familliale
    FastAPI & AI Backend Developer
    CIVIC AND SOCIAL ORGANIZATIONS
    January 2025 - July 2025 (6 months)
    Tananarive, Madagascar
    AI Product Recommendation System for Family Business: FastAPI API + AI (scikit-learn/Gemini) personalizes product suggestions based on purchase history. Boosted sales by 18% for a family SME. React dashboard for family use. PostgreSQL/pgvector backend.
    FastAPI Python Websocket HuggingFace Transformers Scikit-learn

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Education

  • Computer Science Bachelor's Degree in IT Integration and Development
    Higher Institute of Information Technology
    2025
    Licences Informatiques en Intégration et Développement Informatique
  • Baccalaureate in Series D
    Ny Sekolintsika Analamahitsy
    2021
    Baccalauréat en Série D
Check out Ny Ando's education

Skill set

Websocket
Microservices Architecture

Categories