Hello there! I'm

ANDRIANALISOA
Joséphin Sylvère

BackendDeveloper

Passionate backend developer crafting robust and scalable solutions. Transforming ideas into powerful applications that drive business success.

Joséphin Sylvère - Backend Developer
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WHAT I DO

01

Backend Development

Building robust and scalable server-side applications with modern technologies like Node.js, NestJS, and Express.

Node.jsNestJSExpress
02

Database Design

Designing efficient database schemas and optimizing queries for maximum performance and data integrity.

PostgreSQLMongoDBRedisMySQL
03

API Development

Creating secure, well-documented APIs that serve as the backbone of modern web applications.

REST APIGraphQLJWTSwagger

TECH SKILLS

Javascript
TypeScript
React
Tailwindcss
Node.js
Express
NestJS
PostgreSQL
MySQL
MongoDB
GraphQL
Docker

MY PROJECTS

EcoPlay

EcoPlay

An interactive and educational web game that simulates real-life financial situations

Built with:
NoteVerse API

NoteVerse API

A powerful and intuitive API for managing notes efficiently

Built with:
Portfolio Website

Portfolio Website

Modern personal portfolio with animations

Built with:
Task Manager

Task Manager

Modern task organization platform

Built with:
File tracking management

File tracking management

Organizes and secures documents, tracks file progress

Built with:
Vehicle parts sales management

Vehicle parts sales management

Manages vehicle parts sales, ensures accurate stock updates

Built with:

EXPERIENCE

Aug 2025 - Present
Current

Backend Developer Intern

Innov-T
Fianarantsoa, Madagascar
Full-time Internship

Backend development intern at an early-stage fintech startup, building scalable APIs and supporting system architecture using Node.js and Express. Collaborated with senior developers to implement features while following best practices in security, performance, and clean code.

Key Achievements

  • Developed and maintained RESTful API endpoints using Express.js
  • Integrated JWT authentication for secure user sessions and implemented role-based access control (RBAC)
  • Assisted in database design
  • Worked closely with frontend developers to ensure seamless API integration (React)
  • Documented API endpoints using Swagger/OpenAPI for better team collaboration

Technologies Used

Node.jsExpress.jsJWTREST APIsGitSwaggerPostman
June 2025 - Present
Current

Co-Founder

TechZero
Remote
Part-time

Co-founder of a fintech startup in the launch phase. Involved in defining the vision, structuring the team, and preparing the first projects.

Key Achievements

  • Created the legal and organizational structure of the startup
  • Set up technical foundations and selected technologies
  • Developed initial internal prototypes
  • Prospected potential clients and partners

Technologies Used

Leadership
June 2025 - Present
Current

Frontend Developer

ITT Madagascar
Remote
Part-time

Specialized in transforming UI/UX designs into responsive web applications and integrating frontend components with backend APIs. Focus on pixel-perfect implementation and optimal user experience.

Key Achievements

  • Converted Figma mockups into responsive React components
  • Integrated RESTful APIs with error handling and loading states
  • Improved website performance
  • Collaborated with designers to ensure design consistency across platforms

Technologies Used

ReactNext.js
August - November 2024

FullStack Developer. Internship

DIRMIM
Fianarantsoa, Madagascar
Full-time

Developed a comprehensive case management application with real-time tracking capabilities. Integrated Telegram Bot API for automated notifications and case status updates, enabling efficient document workflow management.

Key Achievements

  • Built complete case tracking system managing documents
  • Implemented Telegram bot integration for real-time notifications
  • Designed intuitive dashboard with search and filtering capabilities

Technologies Used

ReactLaravelInertiaMySQL
September - November 2023

FullStack Developer. Internship

CUF
Fianarantsoa, Madagascar
Full-time

Developed a digital archive management system for document storage, organization, and retrieval. Implemented secure file handling, search functionality, and user access controls for institutional document management.

Key Achievements

  • Created archive system managing digital documents
  • Implemented advanced search with metadata filtering and categorization
  • Built secure file upload/download system with role-based access
  • Delivered user training and documentation for system adoption

Technologies Used

ReactPHPMySQL

Ready to bring your project to life?

Whether you have a question or a project in mind, I'd love to hear from you and discuss how we can work together.

GET IN TOUCH

Let's work together

I'm always open to discussing new opportunities, creative projects, or just having a chat about technology and innovation.

Contact Information

Location

Fianarantsoa, Madagascar

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