Banner Image

All Services

Programming & Development Programming & Software

C# API Integration

$26/hr Starting at $220

I’m Logic Legacy, a dedicated and experienced C# developer specializing in API integration and backend solutions that help businesses connect, automate, and scale efficiently. With a strong technical background and a focus on clean, reliable, and maintainable code, I ensure every integration runs smoothly and securely , no shortcuts, no instability, just results that work. My approach is always professional, transparent, and built on delivering what truly matters: seamless communication between systems and consistent performance.


What I offer?

✅ Custom C# API integrations (REST, SOAP, JSON, XML) for third-party platforms and internal systems.

✅ Development of secure and optimized backend services with .NET or .NET Core.

✅ Real-time data synchronization and automated workflows between applications.

✅ Troubleshooting, debugging, and performance optimization of existing integrations.

✅ Implementation of authentication standards like OAuth2, JWT, and API key management.

✅ Integration of payment gateways, CRMs, ERPs, and other cloud-based services.


Why choose me?

✅ I understand that reliability is everything when it comes to API communication.

✅ Each project is handled with professional code structure, version control, and documentation.

✅ You’ll get a developer who listens, communicates clearly, and delivers on time.

✅ I test every endpoint and handle exceptions gracefully to ensure zero data loss or downtime.

✅ My clients appreciate the stability and long-term support I provide after project delivery.


I treat every project like my own , ensuring it’s scalable, efficient, and future-proof. Whether you need to integrate complex APIs or build new ones from scratch, I focus on crafting robust solutions that simplify your workflow and enhance your digital ecosystem. 


With Logic Legacy, your integration won’t just work , it’ll work perfectly.

About

$26/hr Ongoing

Download Resume

I’m Logic Legacy, a dedicated and experienced C# developer specializing in API integration and backend solutions that help businesses connect, automate, and scale efficiently. With a strong technical background and a focus on clean, reliable, and maintainable code, I ensure every integration runs smoothly and securely , no shortcuts, no instability, just results that work. My approach is always professional, transparent, and built on delivering what truly matters: seamless communication between systems and consistent performance.


What I offer?

✅ Custom C# API integrations (REST, SOAP, JSON, XML) for third-party platforms and internal systems.

✅ Development of secure and optimized backend services with .NET or .NET Core.

✅ Real-time data synchronization and automated workflows between applications.

✅ Troubleshooting, debugging, and performance optimization of existing integrations.

✅ Implementation of authentication standards like OAuth2, JWT, and API key management.

✅ Integration of payment gateways, CRMs, ERPs, and other cloud-based services.


Why choose me?

✅ I understand that reliability is everything when it comes to API communication.

✅ Each project is handled with professional code structure, version control, and documentation.

✅ You’ll get a developer who listens, communicates clearly, and delivers on time.

✅ I test every endpoint and handle exceptions gracefully to ensure zero data loss or downtime.

✅ My clients appreciate the stability and long-term support I provide after project delivery.


I treat every project like my own , ensuring it’s scalable, efficient, and future-proof. Whether you need to integrate complex APIs or build new ones from scratch, I focus on crafting robust solutions that simplify your workflow and enhance your digital ecosystem. 


With Logic Legacy, your integration won’t just work , it’ll work perfectly.

Skills & Expertise

.net Core Api DeveloperApi Connector C#Api Development C#Api Integration ExpertApi Integration SpecialistBackend Api IntegrationC# .net Api IntegrationC# Api AutomationC# Api CodingC# Api ConfigurationC# Api DeveloperC# Api EndpointC# Api IntegrationC# Data IntegrationC# External ApiC# Microservice IntegrationC# Rest ApiC# Soap ApiC# Third-party IntegrationC# Web ApiCustom Api IntegrationJson Api IntegrationRest Api IntegrationWeb Api DeveloperXml Api Integration

0 Reviews

This Freelancer has not received any feedback.