I will develop rest API, optimize database, and fix backend bugs

A
abmshawonislam
A
abmshawonislam
A B M Shawon
develop rest API, optimize database, and fix backend bugs
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develop rest API, optimize database, and fix backend bugs

About this gig

Struggling with critical backend errors, broken APIs, or slow database queries?


I am Shawon, a Senior Backend Architect leading an engineering team. We specialize in building robust RESTful APIs, diagnosing root-cause backend bugs, and optimizing database performance for high-traffic production applications.


Core Tech Stack:

Node.js Ecosystem: Express.js, NestJS, Fastify, TypeScript

PHP Frameworks: Laravel, Symfony, Core PHP

Python: FastAPI, Django REST Framework

Databases & Caching: PostgreSQL, MySQL, Redis, MongoDB

Tools & Cloud: Docker, Postman, Swagger, AWS, Nginx


What We Deliver:

1. Urgent Bug Fixing: Resolve 500/502 server crashes, broken logic, and syntax errors.

2. Custom REST & GraphQL APIs: Secure endpoints integrated with JWT, OAuth2, and webhooks.

3. Database Tuning: Analyze slow queries, index missing keys, and resolve deadlocks.

4. Clean Architecture: Dockerized setup, detailed Swagger documentation, and postman tests.


Lets eliminate your technical bottlenecks. Please message me with your error logs or requirements before ordering!

  • Platform

    • Custom

  • Website type

    • E-Commerce store
    • Business
    • Saas
    • Job board
    • Portal

  • Programming language

    • JavaScript
    • PHP
    • Python
    • TypeScript
    • HTML & CSS
    • Bootstrap
    • React
    • Laravel
    • Flash
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Get to know A B M Shawon

A B M Shawon

Senior Software Architect for SaaS, AI and Web Apps

5.0(3)
  • FromBangladesh
  • Member sinceSep 2019
  • Last delivery9 months

  • Languages

    English
I am Shawon, a Senior Software Architect leading a technical squad. With 8+ years of experience, we help startups and CTOs build and secure scalable platforms. Core Focus: • SaaS & Web Apps (Next.js, Node, Laravel, Python) • Custom AI Agents & Workflows (n8n, LangChain) • Cybersecurity & OWASP Penetration Testing • Backend REST APIs & Database Optimization • Web Scraping & Data Pipelines We deliver clean, enterprise-grade architecture with fast velocity. Message me to discuss your system architecture!

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