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Fiverr Pro
English
$
USD
I will develop modern dot net core web apis and sql backends
Harshana D
About this gig
Enterprise-Grade .NET Core API Development
Are you looking for a secure, fast, and scalable backend for your web or mobile application? As a professional Software Engineer and Technical Consultant, I specialize in building robust APIs using the latest .NET technologies. I focus on clean architecture, high performance, and secure data handling.
What I offer in this Gig:
- Custom RESTful API Development: Built using ASP.NET Core with C#.
- Database Integration: Seamless connectivity with SQL Server or Oracle (using my deep PL/SQL expertise).
- Advanced Security: Implementation of JWT (JSON Web Token) and Identity Framework.
- Clean Code: Following SOLID principles and providing detailed code comments for easy maintenance.
- Performance Tuning: Optimized endpoints and efficient database queries for high-speed response times.
Why work with me?
- Consultant Mindset: I don't just write code; I understand business logic and help you design the best architectural solution.
- Full Transparency: I always include the source code in every delivery.
- Documentation: I provide clear API documentation (Swagger/OpenAPI) to make frontend integration a breeze.
Note: Every project is unique. Please message me before
Get to know Harshana D
Harshana D
Expert in DotNet Core APIs, SQL, and PLSQL Logic
- FromSri Lanka
- Member sinceOct 2025
Languages
English
I am a Full-Stack Developer specializing in high-performance backends. I build secure APIs and optimized database architectures for complex applications.
My Core Expertise:
.NET Core (C#): Scalable REST API development.
SQL Server (T-SQL): Efficient schemas & complex queries.
Oracle PL/SQL: Advanced Stored Procedures & business logic.
I focus on writing clean, maintainable code that handles heavy data loads efficiently. Whether you need a new system from scratch or performance tuning for an existing app, I deliver results.
Let's discuss your project!
FAQ
Do you provide the source code?
Yes, the full source code is included in every package. I believe in complete transparency and ensuring you have full ownership of your product.
Can you integrate the API with my existing SQL or Oracle database?
Absolutely. I have extensive experience with both SQL Server and Oracle PL/SQL. I can design the database from scratch or integrate the API with your existing enterprise data structures.
Will the API be secure and follow industry standards?
I implement JWT (JSON Web Token) for secure authentication and follow SOLID design principles to ensure the code is maintainable, scalable, and secure.
Do you provide documentation for the frontend team?
Yes, for the Standard and Premium packages, I provide Swagger (OpenAPI) documentation. This makes it incredibly easy for your frontend or mobile developers to connect to the backend.
I have a custom requirement. Can we discuss it first?
Definitely! I highly recommend messaging me before placing an order. As a technical consultant, I can help you refine your requirements to ensure we build exactly what your business needs.
