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I will develop and modernize web applications for you
Jonathan Blanco
About this gig
Are you looking for a reliable backend or full-stack developer to build, migrate, or improve your web application?
Im a professional software engineer specialized in .NET with real-world experience developing business-critical systems, ERPs, and custom web platforms.
What I can help you with:
- Development of custom web applications using .NET / ASP.NET Core
- Backend APIs and business logic
- Database design, optimization, and migrations (SQL Server)
- ERP modules and internal business systems
- Desktop-to-web system migrations
- Performance optimization and bug fixing
- Integration with third-party services and payment gateways
- Deployment to IIS / cloud environments
- Clean, scalable, and maintainable code
How I work:
- I analyze your business needs before writing a single line of code
- I focus on scalability, performance, and clean architecture
- I communicate clearly and keep you updated throughout the project
- I deliver solutions designed to grow with your business
Technologies:
- Backend: .NET, ASP.NET Core, C#
- Frontend: JavaScript, HTML, CSS
- Database: SQL Server
- Deployment: IIS, CI/CD pipelines (optional)
Message me before ordering so we can define the best solution for your project
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Get to know Jonathan Blanco
Jonathan Blanco
- FromArgentina
- Member sinceFeb 2021
Languages
English, Spanish
I am a software developer with 5 years experience, I have worked a lot with the .Net environment , building web apis or making web applications MVC, but also I have worked with different technologies such as Javascript, SQL, Jquery, Bootstrap, CSS,HTML
My Portfolio
FAQ
Do you work with existing systems?
Yes. I frequently work on existing applications, including maintenance, improvements, refactors, and new features.
Can you migrate a desktop system to web?
Absolutely. I have experience migrating desktop ERPs and internal systems to modern web platforms while improving performance and usability.
Do you provide database design and optimization?
Yes. I handle database modeling, queries, indexes, performance tuning, and data migrations using SQL Server.
Can you deploy the application?
Yes. I can deploy your application to IIS or cloud environments and help with configuration and best practices.
Do you use clean architecture?
Yes. I follow clean, scalable architectures to ensure maintainability and long-term growth.
Do you offer custom quotes?
Yes. If your project doesn’t fit perfectly into a package, contact me and I’ll prepare a custom offer.
