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Fiverr Pro
English
$
USD
I will develop, fix and integrate any API
Zain Ul Abdeen
Level 2
6 orders in queue
4.8
4.8
Gig Summary
What people loved about this freelancer
christianale529
United States
This guy did a super duper rock solid job. My middleware provider couldn't get Amazon orders because of PII data. My shop is Woo and he built an order management...
danfo78
Singapore
Zain is very professional in his work and always willing to go extra mile to complete the project. he is pro active to initial new ideas to fine tune the product....
rkp2026
United Kingdom
Zain did a great job completing the Safe Space Workplace video calls testing task. He thoroughly tested the full user journey from both the client and practitioner/provider...
rkp2026
United Kingdom
Zain went above and beyond to make our project a success. Our project is highly complex and involves critical core information, with many technically challenging...
About this gig
Are you looking for a reliable developer to integrate or build APIs for your website or application?
You are in the right place.
I am a professional developer with strong experience in API integration, automation, and custom API development. I can help you connect your system with any third-party service or build secure, scalable APIs from scratch.
What I can do for you:
E-commerce API Integration (Shopify, WooCommerce, OpenCart, Amazon, eBay)
CRM & Marketing APIs (HubSpot, Zoho, Mailchimp, ActiveCampaign)
Payment & Messaging APIs (Stripe, PayPal, Twilio, WhatsApp)
AI & Google APIs (OpenAI, ChatGPT, Google Sheets, Analytics)
Shipping APIs (DHL, FedEx)
Custom API Development (REST, SOAP, GraphQL)
Webhooks setup & automation
API bug fixing and troubleshooting
Why choose me?
Clean and scalable code
Fast communication
On-time delivery
100% client satisfaction
Feel free to contact me before placing an order to discuss your project.
Get to know Zain Ul Abdeen
Zain Ul Abdeen
Automation and Integration Developer
Level 2
- FromPakistan
- Member sinceApr 2024
- Avg. response time1 hour
- Last delivery1 day
Languages
English, Urdu
I specialize in API integrations, business automation, WhatsApp systems, Shopify automation, and AI-powered workflows.
I help businesses connect their platforms, automate repetitive tasks, sync data between systems, and improve operational efficiency using modern APIs and automation technologies.
Experienced with Laravel, Shopify API, Webhooks, CRM integrations, Payment gateways, OpenAI, Twilio WhatsApp, Xero, and custom backend systems.
My Portfolio
Other Software Development Services I Offer
FAQ
What’s your handover process?
Source code + env templates + README + loom/notes for setup.
Timezone & communication?
UTC+5. I share daily updates and respond within 12 business hours (usually faster).
Can you work with existing teams?
Yes—Git flow, ticketing (Jira), and daily/weekly standups.
How do you manage quality?
Milestones, code reviews, and brief test coverage. I also document endpoints and environment variables.
Do you sign NDAs?
Yes—happy to sign and work in private repos.
Reviews
49 reviews for this Gig
| (44) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C 
christianale529
United States
This guy did a super duper rock solid job. My middleware provider couldn't get Amazon orders because of PII data. My shop is Woo and he built an order management system with my Restricted Amazon API I got and it works flawlessly. Order in to Woo. Waits for my Coffee roaster to API back the tracking info...
$200-$400
Price
6 days
Duration
Z 
Seller's Response
Helpful?D danfo78
Singapore
Ongoing collaborationZain is very professional in his work and always willing to go extra mile to complete the project. he is pro active to initial new ideas to fine tune the product. we will continue to hire him for next stage development. thank you Zain for your effort in our new ventures!
$50-$100
Price
6 weeks
Duration
Z Seller's Response
Helpful?R rkp2026
United Kingdom
Ongoing collaborationZain did a great job completing the Safe Space Workplace video calls testing task. He thoroughly tested the full user journey from both the client and practitioner/provider perspectives, including joining the call, checking permissions, verifying audio and video functionality, and successfully ending...
$50
Price
6 days
Duration
Z Seller's Response
Helpful?T tanklike
United States
Order Canceled
Provider is amateur with no cautous mind. He downed live sites(order taking) for 3 hours I wanted to cancel order, haha He claimed he finished job done, delivered Have to contact credit card company to get my money back. Finally, Fiverr cancelled order waiting credit back Do not work with this gent.
$200-$400
Price
4 weeks
Duration
Z Seller's Response
Helpful?R rkp2026
United Kingdom
Ongoing collaborationZain went above and beyond to make our project a success. Our project is highly complex and involves critical core information, with many technically challenging and difficult elements that required a high level of expertise, attention to detail, and precision. Zane was able to take on these challenges...
$200-$400
Price
7 days
Duration
Z Seller's Response
Helpful?
Reviews
49 reviews for this Gig
| (44) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
C christianale529
United States
This guy did a super duper rock solid job. My middleware provider couldn't get Amazon orders because of PII data. My shop is Woo and he built an order management system with my Restricted Amazon API I got and it works flawlessly. Order in to Woo. Waits for my Coffee roaster to API back the tracking info...
$200-$400
Price
6 days
Duration
Z Seller's Response
Helpful?D danfo78
Singapore
Ongoing collaborationZain is very professional in his work and always willing to go extra mile to complete the project. he is pro active to initial new ideas to fine tune the product. we will continue to hire him for next stage development. thank you Zain for your effort in our new ventures!
$50-$100
Price
6 weeks
Duration
Z Seller's Response
Helpful?R rkp2026
United Kingdom
Ongoing collaborationZain did a great job completing the Safe Space Workplace video calls testing task. He thoroughly tested the full user journey from both the client and practitioner/provider perspectives, including joining the call, checking permissions, verifying audio and video functionality, and successfully ending...
$50
Price
6 days
Duration
Z Seller's Response
Helpful?T tanklike
United States
Order Canceled
Provider is amateur with no cautous mind. He downed live sites(order taking) for 3 hours I wanted to cancel order, haha He claimed he finished job done, delivered Have to contact credit card company to get my money back. Finally, Fiverr cancelled order waiting credit back Do not work with this gent.
$200-$400
Price
4 weeks
Duration
Z Seller's Response
Helpful?R rkp2026
United Kingdom
Ongoing collaborationZain went above and beyond to make our project a success. Our project is highly complex and involves critical core information, with many technically challenging and difficult elements that required a high level of expertise, attention to detail, and precision. Zane was able to take on these challenges...
$200-$400
Price
7 days
Duration
Z Seller's Response
Helpful?
