Rajat Singh
Engineering scalable systems, not just applications
I build high-performance web systems that solve real business problems. With 12+ years of experience across enterprise environments and global freelance projects, I specialize in designing scalable architectures, optimizing performance, and delivering reliable solutions that last. My focus is on creating systems that are not only functional but efficient, maintainable, and ready to grow — with a long-term vision of building impactful SaaS products.
Get in TouchWork Experience
Enterprise & Product Engineering
Senior Software Engineer
2019 — Present- Designed and developed scalable web applications using .NET and modern frontend technologies for complex business workflows.
- Improved system performance and efficiency by up to 40%, significantly enhancing user experience and system reliability.
- Worked on multi-layer architectures including APIs, authentication systems, and enterprise-grade integrations.
- Led end-to-end development from system design to deployment, ensuring maintainability and scalability.
Freelance & Global Clients
Full Stack Developer
2013 — Present- Delivered high-quality web solutions across industries, focusing on performance, scalability, and fast execution.
- Built complete systems from scratch including frontend, backend, and database design.
- Solved critical production issues and optimized existing systems for better performance.
- Maintained strong long-term client relationships through consistent delivery and clear communication.
Technologies I work with
Core Technologies
- ▹ C#
- ▹ .NET Core
- ▹ ASP.NET MVC
- ▹ Entity Framework
- ▹ Web API
Frontend & UI
- ▹ React | Angular
- ▹ TypeScript
- ▹ JavaScript (ES6+)
- ▹ HTML5/CSS3
- ▹ Knockout.js
- ▹ Ant Design
Architecture & Systems
- ▹ REST APIs
- ▹ Microservices Architecture
- ▹ Authentication & Authorization
- ▹ Multi-Tenant Systems
- ▹ System Design
Database & Storage
- ▹ MSSQL
- ▹ MySql
- ▹ SQL Optimization
- ▹ Database Design
- ▹ Stored Procedures
Tools & Platforms
- ▹ Git
- ▹ SVN
- ▹ Docker
- ▹ Azure
- ▹ CI/CD Pipelines
Other Experience
- ▹ jQuery
- ▹ AJAX
- ▹ WordPress
- ▹ PHP
Featured Projects
Workflow Automation Platform (In Progress)
Designing a modular and scalable workflow automation system aimed at simplifying operations for service-based businesses. Focused on flexibility, usability, and real-world problem solving.
Custom Business Platforms
Developed multiple custom web platforms handling complex workflows, data processing, and integrations — built with a strong focus on performance and long-term scalability.
High-Performance Web Portals
Optimized and maintained large-scale web portals with measurable improvements in speed, system efficiency, and user retention.
Company Registration System
Designed and implemented a secure authentication and identity management system supporting role-based access control, multi-tenant architecture. Focused on scalability, security, and seamless user experience across applications.
About Me
I’m a Full Stack Software Engineer with over 12 years of experience building scalable and reliable web applications. My work focuses on solving real-world business problems through clean architecture, efficient systems, and practical engineering decisions. I’ve worked across both enterprise environments and global freelance platforms, consistently delivering solutions that improve performance, stability, and usability. I approach development with a systems mindset — thinking beyond features to understand how everything connects, scales, and evolves over time. Currently, I’m focused on moving towards product development and building SaaS solutions that create real impact. My goal is simple: build systems that matter, and build them right.
