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Fiverr Pro
English
$
USD
I will fix and troubleshoot dot net core web API and angular bugs
Business Box
Level 1
Vetted by Fiverr Pro
Business Box was selected by the Fiverr Pro team for their expertise.
About this gig
Need an experienced ASP.NET Core & Angular developer to fix bugs, develop new features, or maintain your existing application?
I'm a Senior .NET Full-Stack Developer with 10+ years of experience building and maintaining scalable web applications, SaaS platforms, REST APIs, and enterprise software.
I can help you fix existing issues, develop new features, improve performance, integrate APIs, and maintain your production application with clean, secure, and maintainable code.
What I Can Help With:
- ASP.NET Core & C# bug fixing
- ASP.NET Core Web API development
- Angular bug fixing and feature development
- Angular routing, forms, components & CRUD
- REST API development & integration
- Entity Framework Core & Dapper
- SQL Server queries, stored procedures & optimisation
- Authentication & authorization
- JWT, OAuth2 & API security
- Performance optimization & code refactoring
- Third-party API integrations
- Azure & AWS deployment
- Legacy .NET application modernisation
- Production troubleshooting & maintenance
Get to know Business Box
Business Box
WE BUILD SOFTWARE THAT GROWS YOUR BUSINESS
Level 1
Business Box is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
Website Development
- FromIndia
- Member sinceMay 2019
- Avg. response time1 hour
- Last delivery6 days
Languages
English, Hindi, French
I’m a Senior .NET / ASP.NET Core Full-Stack Developer with 10+ years of experience building scalable web applications, SaaS platforms, REST APIs, and enterprise solutions.
Expertise: C#, .NET 8/9/10, ASP.NET Core, Web API, SQL Server, EF Core, Angular, React, TypeScript, Azure, AWS, Microservices, and Clean Architecture.
I can help with custom development, bug fixes, API integrations, performance optimisation, application modernisation, and cloud deployment. I focus on clean, secure, scalable, and maintainable solutions.
My Portfolio
FAQ
Can you fix bugs in an existing ASP.NET Core or Angular application?
Yes. I can investigate issues with ASP.NET Core, C#, Web API, Angular, Entity Framework Core, and SQL Server, identify the root cause, and implement a reliable fix.
Can you add new features to my existing application?
Yes. I can develop and integrate new ASP.NET Core APIs, Angular features, CRUD functionality, authentication, third-party integrations, and database functionality while following your existing architecture and coding standards.
Can you work with an existing or unfamiliar codebase?
Absolutely. I regularly work with existing applications and can understand the architecture, dependencies, APIs, database flow, and business logic before making changes.
Do you provide long-term ASP.NET Core and Angular support?
Yes. I offer ongoing development and maintenance for SaaS, enterprise, and business applications, including bug fixes, feature development, performance optimization, refactoring, and production support.
Can you fix ASP.NET Core Web API and integration issues?
Yes. I can troubleshoot REST APIs, API integrations, authentication, authorization, JSON responses, database connectivity, third-party APIs, and backend/frontend integration issues.
Can you optimize SQL Server and Entity Framework Core performance?
Yes. I can investigate slow queries, inefficient EF Core queries, stored procedures, database bottlenecks, indexing, and backend performance issues and recommend appropriate improvements.
Can you work with Git and existing codebases?
Yes. I am comfortable working with existing repositories using GitHub, GitLab, or Bitbucket and following your current code structure and standards.
Should I message you before placing an order?
Yes, please. Messaging before ordering helps me understand your requirements, suggest the right package, and give an accurate timeline, ensuring smooth delivery.
Do you provide ongoing support after delivery?
Yes. I provide post-delivery support and can continue working on updates, fixes, and improvements as part of long-term collaboration.
Can you handle urgent fixes?
Yes. For urgent issues, you can select the Extra Fast Delivery option or message me to confirm availability.
