• Slide background 1 - Defitra M
    Welcome To My Website !
    Defitra M
  • Slide background 2 - Full Stack Web Developer
    Creative - Professional
    Full Stack Web Developer

About Me

Foto Defitra Muhamad Yasin

Defitra M

Full Stack Web Developer

First, Solve The Problem And Write The Code

Hello, I'm a Backend and Full Stack Developer.

More than 7 years of experience in building web products end-to-end. Currently focused on backend development (PHP Laravel, Node.js) and database optimization, REST/GraphQL APIs, as well as caching and performance tuning, while remaining proficient in the frontend stack (HTML, CSS, JavaScript, React/Next.js). Experienced in both monolithic and microservices architectures, often serving as the team's go-to troubleshooter. Able to quickly adapt to new technologies and languages, ready to meet the needs of dynamic projects. Currently expanding my expertise into AI Engineering, with a focus on LLMs, RAG, vector databases, prompt engineering, AI agents, and integrating AI capabilities into real-world applications. I leverage my existing backend and full-stack experience to design and build AI-powered solutions, from API and data pipelines to application integration and deployment.

7

Year Experience

100++

Projects Done

Portfolio

RepoMind (AI Codebase Analytics)

FastAPI · RAG · LLM · Prompt Engineering

Screenshot Realtime Chat

Realtime Chat

Node.js · NextJS · WebSocket

Screenshot Realtime Chat

Sistem POS

NextJS · NodeJS · MariaDB

Screenshot Sistem POS

Apindo Jabar

Laravel · PostgreSQL

Website Apindo Jabar

E-Commerce Platform

ReactJS · NodeJS · Midtrans

Screenshot E-Commerce

Konveksi V4

Laravel · MariaDB

Screenshot Konveksi V4

POS Apotek

Laravel · MariaDB

Screenshot POS Apotek

WEB BAZNAS

Laravel · MariaDB

Screenshot proyek

WEB RUMAH SAKIT

Laravel · MariaDB

Screenshot proyek

Skills

85

Create System Document Design

85

Web Development (Laravel, React, Node, Python)

50

Mobile APP Development (Swift 3, React Native)

85

REST API Development

85

RabbitMQ

30

AI Engineer

I am available for Freelance

Resume

  • Present

  • PT AIDO Health

    Fullstack Developer

    Developing and maintaining healthcare systems and internal operational platforms.

    • Developed and maintained 5+ Node.js microservices for healthcare operations.
    • Designed and implemented REST APIs and backend business logic for hospital workflows.
    • Improved application maintainability through code refactoring and modular architecture improvements.
    • Optimized backend performance using caching strategies and asynchronous processing.
    • Improved frontend systems built with React.js and Next.js.
    • Collaborated with clinical teams including doctors, nurses, radiology, and laboratory divisions.
    • Managed CI/CD deployment pipelines using Jenkins.
    • Utilized Docker for scalable deployment environments.
    • Participated in production troubleshooting and incident resolution.
    • Tech Stack : Node.js, PostgreSQL, React.js, Docker, Jenkins, Redis, RabbitMQ, OpenCode AI

    Sep 2025 to Now

  • PT KedaiPangan Sejahtera

    Backend Developer

    Developed and maintained enterprise systems for ecommerce and manufacturing operations.

    • Developed and maintained 20+ microservices using Node.js.
    • Built scalable backend services for ecommerce, customer management, production execution, and sales systems.
    • Designed ERD structures, middleware architecture, and backend service integrations.
    • Maintained legacy systems using Lumen, CakePHP, and Laravel.
    • Improved backend performance and application stability through optimization and refactoring.
    • Supported frontend integration for systems built using Next.js and Ant Design.
    • Automated deployments using Jenkins CI/CD pipelines.
    • Managed Docker-based deployment environments.
    • Collaborated with cross-functional teams using Git and Bitbucket workflows.
    • Tech Stack : Node.js, Laravel, Lumen, PHP Cake, MariaDB, MongoDB, Redis, Next.js, Docker, Jenkins

    Nov 2021 to Sep 2025

  • Freelancer

    Full Stack Developer

    Built custom business systems independently for multiple industries including POS, manufacturing, education, inventory, and hospitals, etc.

    • Developed full-stack applications using Laravel, Node.js, React.js, and PostgreSQL.
    • Designed system architecture and technical specifications based on client requirements.
    • Built responsive frontend interfaces using React.js, Next.js, Bootstrap, and Ant Design.
    • Integrated third-party services and external APIs.
    • Developed real-time chat systems using WebSocket.
    • Built ERP and manufacturing systems with inventory, payroll, production, and reporting modules.
    • Managed deployment and maintenance on VPS environments

    JULY 2018 to NOW

  • PT CAI Plumbing (Remote)

    Full Stack Web Developer

    Developed and maintained ERP systems for operational business processes

    • Developed backend and frontend modules using Python Flask.
    • Managed PostgreSQL database systems.
    • Tech Stack : Python Flask, PostgreSQL

    Aug 2021 - Nov 2021

  • PT Teknologi Digital Abadi (Remote)

    Full Stack Developer

    Developed monolithic systems for the police sector.

    • Developed backend and frontend modules using Python Flask.
    • Managed PostgreSQL database systems.
    • Tech Stack : Python Flask, PostgreSQL

    Dec 2020 - May 2021

  • PT Solusi Karya Digital

    Full Stack Developer

    Developed custom business applications for external clients

    • Developed monolithic systems using CodeIgniter 3.
    • Built iOS mobile applications using Swift 3.
    • Managed PostgreSQL database systems.
    • Tech Stack : CodeIgniter 3, Swift 3, PostgreSQL

    Aug 2019 - Apr 2020
  • Education

  • Diploma degree

    Lp3i Sukabumi
    2017 - 2019