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Fiverr Pro
English
$
USD
I will develop rest API integrations, webhooks and backend solutions
Ryan L
About this gig
I specialize in backend development, REST APIs, PostgreSQL databases, ERP integrations, and automation workflows.
I help businesses connect systems, automate processes, and build scalable backend solutions with clean and reliable architecture.
My services include:
REST API Development
API Integration
PostgreSQL & SQL Optimization
Webhooks & Automation
ERP Integration
Backend Development (.NET / Node.js)
Database Integration
ETL & Data Processing
API Bug Fixing & Troubleshooting
Third-Party Service Integration
Why work with me?
Fast communication
Clean and maintainable code
Production-ready solutions
Real-world business integration experience
Focus on performance and scalability
Whether you need to build a new integration, fix an existing API, automate workflows, or connect your systems efficiently Im here to help.
Get to know Ryan L
Ryan L
Backend Developer
- FromBrazil
- Member sinceOct 2025
- Avg. response time14 hours
Languages
English, Portuguese
Backend & API Integration Developer specialized in scalable business systems, REST APIs, PostgreSQL databases, ERP integrations, and automation workflows. Experienced with C#, .NET, Node.js, TypeScript, webhooks, ETL, and system integrations. Strong focus on performance, reliability, and clean architecture. Skilled in connecting mobile apps, e-commerce platforms, databases, and third-party services to create efficient and production-ready solutions with fast communication and professional support.
FAQ
What technologies do you work with?
I work with REST APIs, PostgreSQL, Node.js, .NET, webhooks, ERP integrations, automation workflows, and backend systems.
Can you fix existing API or integration issues?
Yes. I can debug and fix API errors, webhook issues, database problems, authentication failures, and broken integrations.
Do you work with databases?
Yes. I have experience with PostgreSQL, SQL optimization, database integrations, ETL processes, and backend data workflows.
Can you integrate third-party services?
Yes. I can integrate APIs, payment gateways, ERP systems, mobile apps, e-commerce platforms, and other third-party services.
Do you provide clean and documented code?
Yes. I focus on clean, scalable, and maintainable code with clear communication and reliable delivery.
What do you need before starting a project?
Usually I need API documentation, project requirements, access credentials (if necessary), and a clear explanation of the expected workflow or integration.
