Ajay Kumar
Full Stack .NET Developer
About
3 years of experience building scalable enterprise applications (10,000 users). Expert in Core Microservices and performance engineering with a track record of reducing API latency by 65%.
Skills & Expertise (35)
Work Experience
.NET Core Web API Developer
Navsoft
Feb 2026 - Present
Developed and maintained scalable backend services using ASP.NET Core Web API for a system enabling product sales, service management (washing/trucking), and invoice generation. Implemented core business logic for order processing, workflows, and billing while integrating with SQL Server using Entity Framework Core. Ensured API performance, security, and robust error handling. Collaborated with frontend teams and optimized queries to improve overall system performance.
.Net Developer
Microwave Computing & Consulting Pvt Ltd
Apr 2023 - Jan 2026
Architected and developed high-performance enterprise applications using .NET 8, ASP.NET Core, and Angular 16, supporting 8,000 daily active users with 99.9% uptime. Designed and implemented a microservices-based REST API ecosystem with JWT authentication, OAuth 2.0, and Redis caching, reducing response times from 2.1s to 700ms. Integrated WhatsApp Business APIs with webhook-based callbacks, processing 30,000 messages/month with 99.5% delivery success. Built Azure Blob Storage-based adaptive bitrate video streaming solutions supporting 5,000 concurrent sessions with sub-500ms buffering. Developed intelligent skip-logic engines using rule-based decision trees and state machines, reducing form completion time by 40%. Optimized PostgreSQL and SQL Server databases via indexing, partitioning, and query analysis, improving report performance by 300%. Mentored junior developers on clean code, SOLID principles, and performance optimization.
.NET Developer Trainee
ICA Private Limited
Oct 2022 - Mar 2023
Contributed to full-stack development of ASP.NET Core Web APIs and React-based applications using repository pattern and dependency injection. Developed responsive and accessible UI components using Angular Material and Bootstrap 5. Implemented unit and integration testing using xUnit and Moq, achieving 85% test coverage. Worked in Agile Scrum teams, participating in sprint planning, code reviews, and retrospectives.
Education
Bachelor of Technology (B.Tech) – Computer Science & Engineering - ARNI University
2017 - 2021 · Afghanistan
Certifications
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Availability Details
Visa Status
H1B
Relocation
Open to Relocation
Skills (35)
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