LinkedIn  ·  GitHub  ·  Dev.to  ·  📍 Coimbatore, India · 📫 ramkumar.kollimalayan@outlook.com

• 8+ years of software engineering experience
• Specialized in Angular, ASP.NET Core, and SQL Server
• Modernized enterprise platforms used across 78 global ports
• Delivered systems supporting 200+ concurrent users
• Led major framework migrations with zero downtime
• Published technical articles on Dev.to covering Angular, ASP.NET Core, and developer productivity.

Senior Full Stack Engineer with 8+ years of experience building and modernizing enterprise-scale Angular and ASP.NET Core platforms, including systems serving 200+ users across 78 global ports.

Recent highlights:

• Led full-stack modernization: Angular v10→v18, .NET Core 3.1→.NET 8, ABP v3.x→v8.x
• Architected custom JWT auth with HttpOnly cookies for AWS compatibility
• Implemented Azure AD SSO with continuous token validation and auto user sync
• Improved system performance by 30% through database query optimization

Most of my work lives in private enterprise repositories supporting production systems.

• Modular Angular architectures (v10–v18) that reduce tech debt and accelerate feature delivery
• High-performance REST APIs with optimized EF Core queries, OData support, and Swagger docs
• Enterprise auth systems using JWT, OAuth 2.0, Azure AD SSO, and role-based authorization for 200+ users
• Refactored legacy codebases — upgraded major frameworks with zero downtime, reduced manual workflows by 45%

Frontend: Angular (v10–v18) · TypeScript · HTML5 · CSS3 · Bootstrap · PrimeNG · RxJS · Chart.js
Backend: ASP.NET Core (.NET 8) · C# · Entity Framework Core · LINQ · Web API · RESTful APIs · ABP Framework
Database: SQL Server · Query optimization · Stored Procedures · Database Design · T-SQL
Auth & Security: JWT Authentication · OAuth 2.0 · Azure AD SSO · OpenIddict · Role-based access control
DevOps & Tools: Git · Azure DevOps · Visual Studio · VS Code · Postman · Swagger/OpenAPI · IIS
Development Practices: Agile/Scrum · API Integration · Code Reviews · Unit Testing · Performance Optimization
Additional: PHP · WordPress · WooCommerce · Elementor · jQuery · Figma · Adobe Photoshop

A web-based utility that helps developers choose correct HTTP status codes for REST APIs based on real-world scenarios.

Tech Stack: Angular · TypeScript · REST API Design

Why it exists: Teams struggle with API design decisions like 400 vs 422, 401 vs 403. This tool provides clear, scenario-based guidance.

Key benefits:

• ✅ Interactive decision tree for HTTP status codes
• ✅ Real-world scenario mapping
• ✅ Improves API consistency across teams

🔗 View on GitHub

I write about Angular, ASP.NET Core, and enterprise system design:

• 📝 Choosing the Right HTTP Status Code in REST APIs (Feb 2026)
• 📝 VS Code Extensions That Make You Unstoppable (Nov 2024)

Read more on Dev.to →

• Maintaining enterprise Angular applications serving 200+ users across 78 ports
• Exploring Azure certification (AZ-204)
• Optimizing EF Core queries and SQL Server performance
• Writing about real-world full-stack challenges

Most of my professional contributions are in private enterprise repositories. Public activity here represents personal projects, technical experiments, tooling, and articles.

💼 LinkedIn · ✍️ Dev.to · 📧 ramkumar.kollimalayan@outlook.com