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Fiverr Pro
English
$
USD
I will build reliable API integrations and backend automation
Khalid Osman
About this gig
I help businesses solve difficult API and backend integration problems where reliability really matters.
If you need two systems to communicate properly, an existing integration repaired, or a backend process automated, I can build a clean and dependable solution around your requirements.
I can help with:
REST API integrations and custom API connections
Backend automation and system-to-system workflows
Authentication, API keys, OAuth and secure data exchange
Data mapping, transformation and synchronization
Database-connected integrations
Error handling, retries and reliability improvements
Repairing broken or unreliable integrations
Testing and verification before delivery
I focus on integrations that need more than simply connecting two endpoints. I look at how the complete data flow should work, what can fail, how errors should be handled, and how the finished integration can be verified.
You will receive clean source code, clear implementation, and a tested result.
For complex integrations involving several systems, unusual APIs, or an existing production environment, please message me first with the technical details so I can review the scope and recommend the correct package.
Get to know Khalid Osman
Khalid Osman
Automation API and Backend Developer
- FromUnited Kingdom
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English
I build and troubleshoot complex automation, API and backend systems using n8n, Node.js, JavaScript, PostgreSQL, Supabase and AI/LLM APIs. I specialize in API integrations, webhook debugging, workflow recovery, backend troubleshooting, data pipelines and multi-system automation. My focus is reliable implementation, proper testing and verified results. I can help fix broken automations, backend issues, database integrations, AI systems and complex workflows involving multiple services.
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FAQ
What information do you need before starting?
Please send the API documentation, required systems, authentication method, expected data flow, and the exact result you want. For existing integrations, include the current error or problem.
Can you fix an existing broken API integration?
Yes. I can diagnose failed requests, authentication issues, bad data mapping, unreliable workflows, error handling problems, and backend integration failures.
Can you connect more than two systems together?
Yes. I can build multi-system integrations where APIs, databases, backend services, and automation workflows need to exchange data reliably.
Do you test the integration before delivery?
Yes. Testing and verification are part of the work. I check the expected data flow, failures, responses, and the required final result before delivery.
Should I contact you before ordering a complex integration?
Yes. For production systems, multiple APIs, unusual authentication, databases, or complex automation, please message me first so I can confirm the exact scope and correct package.
