You will get get expert API bug fixing and REST integration troubleshooting
Project details
A failing API halts your business. Let's fix it instantly.
Are users facing failed logins, blocked checkouts, or sync errors due to API crashes? Every minute of downtime costs revenue. You need an experienced full-stack architect to diagnose the exact root cause and deploy a secure fix.
I specialize in emergency API troubleshooting and repairing complex REST/GraphQL integrations to ensure your data flows seamlessly.
What I fix:
Broken API endpoints (500, 404 errors) & Server Crashes
CORS policy blockers & Authentication failures (JWT, OAuth)
Broken 3rd-party integrations (Stripe, Twilio, CRMs)
Webhook misconfigurations & JSON parsing issues
Why partner with me?
Rapid Response: Emergency debugging for critical apps.
Secure: Safe, isolated testing before deploying fixes.
Private: NDAs fully welcomed for your code's security.
Stop losing users over broken data. Message me your API issue, and let's get your platform running perfectly!
Are users facing failed logins, blocked checkouts, or sync errors due to API crashes? Every minute of downtime costs revenue. You need an experienced full-stack architect to diagnose the exact root cause and deploy a secure fix.
I specialize in emergency API troubleshooting and repairing complex REST/GraphQL integrations to ensure your data flows seamlessly.
What I fix:
Broken API endpoints (500, 404 errors) & Server Crashes
CORS policy blockers & Authentication failures (JWT, OAuth)
Broken 3rd-party integrations (Stripe, Twilio, CRMs)
Webhook misconfigurations & JSON parsing issues
Why partner with me?
Rapid Response: Emergency debugging for critical apps.
Secure: Safe, isolated testing before deploying fixes.
Private: NDAs fully welcomed for your code's security.
Stop losing users over broken data. Message me your API issue, and let's get your platform running perfectly!
Programming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$25
|
Standard
$60
|
Advanced
$150
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 3 | Unlimited |
Bug Investigation | |||
Fix Documentation | - | - | |
Detailed Code Comments | - |
Frequently asked questions
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NG
Ned G.
Apr 26, 2026
Squarespace Website Development
Zubair was a true partner to me on this project. I really enjoyed working with him and greatly appreciated his dedication, guidance, and expertise. Zubair was an excellent and clear communicator, as well as being flexible and responsive; a pleasure to recommend.
SA
Sohail A.
Feb 1, 2024
Responsive Design Expert Needed for Existing WordPress Website
Outstanding job! Zubair Ali efficiently made our WordPress website fully responsive, exceeding expectations. Their expertise, prompt communication, and early delivery deserve a solid 5-star rating. Highly recommended!
SK
Staven K.
Mar 2, 2023
Need Services and a gallery page for my wordpress site
Zubair did the everything we needed him to do for our website! I highly recommend his services and talent, I would be glad to work with him again.
NA
Nazeer A.
Apr 9, 2022
Logo For LB
Great communication, great skills, project finished way ahead of schedule. I would be glad to work with Zubair again.
I recommend him highly.
I recommend him highly.
About Zubair
Expert Webflow & GSAP Animator for SaaS Websites
100%
Job Success
Karachi, Pakistan - 10:57 pm local time
Hello, I’m Zubair, a seasoned SaaS Website Developer with over 10 years of experience. I have successfully completed over 15+ projects, delivering engaging and efficient digital experiences.
Specializing in Webflow and WordPress, I integrate GSAP animations to ensure your website isn’t just another online presence-it’s an interactive showcase that stands out.
I believe in creating a seamless blend of design, interaction, and performance, resulting in websites that not only look great but also drive conversions.
Webflow:Creating visually appealing, responsive websites tailored to your brand needs.
WordPress:Customizing functional, user-friendly websites with ease of content management.
GSAP Animation: Bringing your site to life with smooth, interactive animations that capture attention.
SaaS Website Development: Designing specialized SaaS websites with focus on clarity, speed, and impactful user interaction.
Looking to elevate your online presence with an impactful website? Let’s connect and bring your vision to life.
Steps for completing your project
After purchasing the project, send requirements so Zubair can start the project.
Delivery time starts when Zubair receives requirements from you.
Zubair works on your project following the steps below.
Revisions may occur after the delivery date.
Diagnosis & Log Analysis
I will securely review your source code, reproduce the bug in a safe environment, and analyze server logs to identify the root cause of the API failure
Implementation & Bug Fixing
I will write the necessary code fixes, correct configurations (like CORS or webhooks), and ensure the changes do not break any existing backend features.