Hi, my name is
I engineer backend systems across the full .NET ecosystem — from sustaining battle-tested legacy code to architecting modern, high-performance solutions with clean architecture and an unwavering commitment to problem-solving. My name is Abhay Kumar Mandal, and I build systems that perform under pressure.
A .NET backend engineer who bridges legacy and modern architectures — solving complex problems with clean design, production-grade code, and an obsession for continuous mastery.
I'm a backend engineer specializing in .NET — spanning legacy frameworks and modern platforms with equal rigor. I thrive on deep problem-solving and debugging complex system-level issues, approaching each challenge as an opportunity to build more resilient infrastructure. I hold a Bachelor's degree in Information Technology from Texas College of Management and IT, Sifal, Kathmandu.
More about me→“The best code is the code you don't have to write — but when you do, make it count.”
Full-spectrum .NET backend engineering — from maintaining legacy enterprise systems (.NET Framework, ASP.NET MVC) to architecting modern, scalable platforms (.NET 8+, ASP.NET Core, Blazor). I solve complex problems at the system level and build infrastructure that performs under pressure.
The teams I've led, the systems I've architected, and the production environments I've strengthened — from legacy migrations to greenfield platforms.
Codebee Nepal Pvt Ltd
Developing and maintaining production-grade systems using C#, ASP.NET Core, Entity Framework, and SQL Server. Building RESTful APIs and modern full-stack applications with .NET ecosystem — from legacy framework maintenance to modern .NET architecture. Focused on performance optimization, clean architecture, and delivering scalable, secure solutions.
Sunya Technology Pvt Ltd
Managed projects at Sunya Technology with a focus on software development and coordination, ensuring smooth delivery within timelines and quality benchmarks.
Robotics Association of Nepal
Led robotics and tech events at Robotics Association of Nepal. Coordinated teams and logistics for events, fostering innovation and technical skill development.
Robotics Association of Nepal
Interned at Robotics Association of Nepal focusing on robotics and event coordination. Gained hands-on experience in robotics technology and youth engagement.
Ujjwal Education
Taught students from grades 5 to 12 at Ujjwal Education. Conducted project-based learning in robotics using Arduino and Raspberry Pi Pico. Mentored students for robotics competitions, emphasizing STEM education and innovation.
Real-world backend systems, APIs, and platforms I have designed, built, and shipped — from database schema to deployment pipeline.
LiveA multi-tenant laundry management SaaS built for Nepal. Order management, customer database, role-based access, reports & analytics, and SMS notifications — all in one dashboard. Replaces paper-based systems for laundry businesses.
Live
LiveA centralized multi-application portal for HMC Nepal, integrating multiple business services — including claims management, member services, and administrative tools — into a unified dashboard with role-based access and real-time analytics.
What colleagues, managers, and collaborators say about working with me — the problems we solved and the systems we built together.
Deepak BistRobotics | Technology | Entrepreneurship | Innovation
“I've worked with Abhay Kumar Mandal, such a humble and extraordinary person. His dedication to technology and robotics is truly inspiring. He's not only incredibly skilled but also a great team player who's always ready to tackle challenges head-on.”
September 2024 · Senior to Abhay
Sushan KattelData Engineer | Business Data Consultant
“I worked with Abhay Kumar Mandal during their internship at Robotics Association of Nepal. They showed remarkable dedication, a strong willingness to learn, and a proactive approach to their tasks. Abhay quickly adapted to new challenges and made meaningful contributions to our projects.”
September 2024 · Mentor
Rishav RajResearcher | Robotics & AI
“Mr. Mandal consistently demonstrated exceptional dedication, professionalism, and a strong ability to lead and inspire others. They were instrumental in planning and executing successful events, ensuring every aspect ran smoothly and on time.”
January 2025 · Manager
Akash G C.NET Developer
“I had the pleasure of working with Abhay at CodeBee on multiple projects. He is a hardworking, intelligent, and fast-learning developer who consistently delivers quality work. He adapts quickly to new technologies, tackles complex problems with ease, and is a great team player.”
June 2026 · Senior to Abhay
Deep dives into backend architecture, .NET internals, cloud infrastructure, system design, and the engineering decisions that separate good systems from great ones.
Patterns and practices for building maintainable, high-performance REST APIs — from clean architecture to efficient data access.
Lessons learned building a SPA with Blazor WebAssembly — architecture, theming, and deployment to Azure Static Web Apps.
Have a backend challenge, a system to build, or an idea worth engineering? Let's talk.