Full Stack Developer

Overview

As a freelance Full Stack Developer, I worked with multiple clients to build scalable web applications and microservices. I specialized in creating secure, performant systems that could grow with the business needs. Each project required careful architecture decisions to balance development speed, scalability, and cost.

Key Responsibilities

• ▸Designed and implemented microservices architecture using ASP.NET Core
• ▸Developed RESTful APIs with proper authentication and authorization
• ▸Implemented PostgreSQL database with Row-Level Security (RLS) for multi-tenant data isolation
• ▸Built authentication and authorization services supporting OAuth 2.0 and JWT
• ▸Created order management and customer management microservices
• ▸Set up automated CI/CD pipelines using GitHub Actions
• ▸Implemented comprehensive testing strategies including unit and integration tests
• ▸Optimized database queries and implemented caching strategies
• ▸Provided technical documentation and knowledge transfer to client teams

Key Achievements

• ▸Reduced deployment time from hours to minutes through automated CI/CD
• ▸Implemented RLS that ensured 100% data isolation between tenants
• ▸Improved API response times by 45% through query optimization and caching
• ▸Delivered all projects on time and within budget
• ▸Created reusable microservices patterns that accelerated future development

Technologies Used

Challenges & Solutions

• ▸Designing multi-tenant architecture that scales efficiently
• ▸Ensuring data isolation and security in shared infrastructure
• ▸Balancing feature development speed with code quality
• ▸Managing multiple client projects simultaneously