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Fiverr Pro
English
$
USD
I will build custom API integrations and backend automation
Astha
About this gig
Need to connect two systems, automate data transfer, or integrate a third-party API?
I build reliable backend API integrations and automation using Node.js, TypeScript, Express, REST APIs, OAuth, webhooks, databases, and background processing.
I can help with:
- REST API integrations
- OAuth/API authentication
- Data mapping and synchronization
- Webhook integrations
- Backend automation
- Database integration
- Error handling and retries
- Third-party API connections
I have 4.8+ years of experience working on real production integration projects involving HubSpot, Microsoft Dynamics 365, Microsoft Business Central, Shopify, WooCommerce and other platforms.
Send me your APIs, documentation, or requirements and I'll review the scope and suggest the right approach.
Get to know Astha
Astha
Software Engineer Scalable Backends APIs Microservices
- FromIndia
- Member sinceJan 2026
Languages
English
I’m a Backend & Integration Engineer with 4.8+ years of experience building and maintaining live production systems. I specialize in Node.js, TypeScript, Express, PHP/Laravel, REST APIs, OAuth, webhooks, Redis, BullMQ, PostgreSQL, MongoDB, Docker and AWS. I’ve worked on real-world integrations across Shopify, HubSpot, Microsoft Dynamics 365, Business Central, WooCommerce and other platforms. I focus on reliable API integrations, data synchronization, automation, queues, retries, monitoring and scalable backend systems.
Other Software Development Services I Offer
FAQ
What information do you need to start?
Please provide the API documentation, credentials/test access if required, the systems you want to connect, and a description of the data or workflow you want to automate.
Can you integrate APIs that are not listed in your Gig?
Yes. I can work with most REST APIs and third-party platforms. Please send the API documentation and requirements so I can confirm the scope.
Can you work with OAuth and webhooks?
Yes. I can implement OAuth-based authentication, webhook handling, data synchronization, and related backend integration workflows.
Can you integrate a database?
Yes. Database integration is included in the Standard and Premium packages and can be discussed based on your requirements.
Can you handle complex multi-system integrations
Yes. For complex integrations involving multiple systems, large data synchronization, queues, retries, or custom business logic, please contact me before ordering so I can review the requirements and provide an appropriate custom offer.
