Full Stack Developer

Building reliable, scalable web products.

Production-ready web applications with clean APIs, robust databases, and thoughtful UI. Focused on performance, security, and maintainability.

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Node.js Express MongoDB Docker

What I Deliver

Clear, fast, and maintainable systems that scale.

API Architecture

Design secure, versioned REST APIs with authentication, rate limiting, and observability.

Database Design

Model and optimize relational and NoSQL databases with indexing, queries, and performance tuning.

Full-Stack Delivery

Deliver end-to-end features with frontend integration, CI/CD, and production monitoring.

Selected Work

Representative work across fintech, logistics, and SaaS.

Fintech API + Admin

Payment Ops Dashboard

Delivered a role-based admin dashboard with audit logs and transaction reporting.

  • Node.js
  • Express
  • MongoDB
Logistics Tracking

Fleet Visibility Platform

Built event-driven tracking with caching and optimized queries for high-frequency updates.

  • REST APIs
  • Redis
  • MongoDB
E-commerce Admin + Orders

Ecommers Platform

Built a role-based Node.js/Express store with product catalog, cart, and order management.

  • Node.js
  • Express
  • MongoDB
Education Landing + Admin

CA Coaching Bangladesh

Built a landing page with manual payment flow and admin verification for student enrollments.

  • Node.js
  • Express
  • Manual Payment
Fintech Wallet + Bill Pay

Wallet App

Built a secure wallet platform with PIN + OTP bill pay, cash in/out, and admin controls.

  • React
  • Node.js
  • MongoDB
Healthcare Inventory + Billing

Pharmacy Management System

Built a PHP + MySQL system for managing medicines, sales, and billing operations.

  • PHP
  • MySQL
  • CRUD
AgriTech ML Recommendation

Crop Recommendation System

Built a machine learning model to recommend suitable crops based on soil and climate inputs.

  • Python
  • Machine Learning
  • Data Science
EdTech SaaS

Learning Suite

Developed subscription workflows, analytics dashboards, and automated onboarding.

  • Node.js
  • Stripe
  • MongoDB

Core Technologies

Modern, production-ready full stack foundations.

Programming Languages

C | C++ | Java | Python | PHP | JavaScript

Database

MySQL | SQLite | PostgreSQL | MongoDB

API Development

RESTful APIs | Debugging | Performance Optimization

Tools

Git | VS Code | NetBeans | Colab | Jupyter | Docker | CI/CD

Problem Solving

Complex Production Bug Fixing | Root Cause Analysis

Operating Systems

Windows | Linux

Frontend

HTML | CSS | JavaScript | React.js | Next.js | Vue.js | TypeScript

Backend

Node.js | PHP (Laravel) | Python (Django) | Java

Auth

JWT | OAuth | Sanctum

Security

Web Security Best Practices

About Me

Full-stack engineer and Computer Science graduate specializing in Node.js, PHP, and Python. Skilled in software development, data science, and cybersecurity, with a passion for building secure, scalable, and AI-driven solutions. Experienced in designing APIs, optimizing performance, and delivering reliable web products while collaborating effectively with dynamic teams and focusing on measurable outcomes.

I value clean architecture, security-minded engineering, and measurable outcomes, balancing technical rigor with clear, proactive communication.

Foysal Ahmad

Let's build something impactful.

Open to full-time, contract, and freelance work. Send a message and I'll reply within 24 hours.

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