Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop, fix and integrate any API
Zain Ul Abdeen
Level 2
4 orders in queue
4.7
4.7
Gig Summary
What people loved about this freelancer
danfo78
Singapore
Zain is very responsive, we have no problem communicating. almost every corrections was done within 1-2 hours. Very experienced developer!
craigcjd
United States
Zain has been a great partner throughout the development of my Zoho Creator SaaS application, BizOpConnect. He was responsive, professional, and consistently...
margie227
United States
Zain, went above and beyond my expectations. I have a large website that we are creating and we decided to do it in phases. He understood my ideas and is helping...
rosturdy
United Kingdom
gave him a deadline of 48 Hours and he delivered well within that time frame for me, done more than i asked and cannot express how professional and polite he...
samarabishop
Australia
Managed to deliver what 3 others couldn't! Zain was great to work with - exceeded all of my expectations and delivered a complicated project and api set up...
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 delivery4 days
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
33 reviews for this Gig
| (28) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M 
margie227
Repeat Client
United States
Zain, went above and beyond my expectations. I have a large website that we are creating and we decided to do it in phases. He understood my ideas and is helping me create my vision for my website. I made a lot of different changes throughout building the site and he had no problems at all adjusting...
$200-$400
Price
5 weeks
Duration
Z 
Seller's Response
Helpful?M margie227
Repeat Client
United States
Zain does exceptional work! I am continuing to work with him as we build my website in phases, and I couldn't be happier with the results so far. He has outstanding communication skills, is highly responsive, and truly takes the time to understand my vision. What I appreciate most is that he is results-driven...
$200-$400
Price
4 days
Duration
Z Seller's Response
Helpful?D danfo78
Singapore
Zain is very responsive, we have no problem communicating. almost every corrections was done within 1-2 hours. Very experienced developer!
$200-$400
Price
2 weeks
Duration
Z Seller's Response
Helpful?A aamirtroy
Repeat Client
United States
Zain did an excellent job integrating the payment gateway into our website. He was professional, responsive, and completed the work quickly and accurately.
$50-$100
Price
3 weeks
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.
$100-$200
Price
4 weeks
Duration
Z Seller's Response
Helpful?
Reviews
33 reviews for this Gig
| (28) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
M margie227
Repeat Client
United States
Zain, went above and beyond my expectations. I have a large website that we are creating and we decided to do it in phases. He understood my ideas and is helping me create my vision for my website. I made a lot of different changes throughout building the site and he had no problems at all adjusting...
$200-$400
Price
5 weeks
Duration
Z Seller's Response
Helpful?M margie227
Repeat Client
United States
Zain does exceptional work! I am continuing to work with him as we build my website in phases, and I couldn't be happier with the results so far. He has outstanding communication skills, is highly responsive, and truly takes the time to understand my vision. What I appreciate most is that he is results-driven...
$200-$400
Price
4 days
Duration
Z Seller's Response
Helpful?D danfo78
Singapore
Zain is very responsive, we have no problem communicating. almost every corrections was done within 1-2 hours. Very experienced developer!
$200-$400
Price
2 weeks
Duration
Z Seller's Response
Helpful?A aamirtroy
Repeat Client
United States
Zain did an excellent job integrating the payment gateway into our website. He was professional, responsive, and completed the work quickly and accurately.
$50-$100
Price
3 weeks
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.
$100-$200
Price
4 weeks
Duration
Z Seller's Response
Helpful?
