You will get API Developer | Integration Specialist
Top Rated
Top Rated
Project details
As an API Development Specialist, I specialize in building high-quality, scalable, and efficient APIs for web applications. With years of experience in API development, integration, and automation, I have the technical skills and expertise that meet or exceed your expectations.
I offer a wide range of services to clients, including custom API development, API integration, API automation, and API documentation. I also well-versed in various API web flows, such as REST and SOAP, and can help clients select the best approach for their specific needs.
My expertise includes building responsive and user-friendly interfaces, optimizing API performance, conducting rigorous testing to ensure that the final product is of the highest quality, and integrating third-party APIs.
One of my greatest strengths as an API Development Specialist is my ability to communicate effectively and collaborate with my team to ensure that the project is delivered on time and meets the client's requirements.
Contact me today to discuss your project requirements and learn more about how I can help you achieve your API development goals.
I offer a wide range of services to clients, including custom API development, API integration, API automation, and API documentation. I also well-versed in various API web flows, such as REST and SOAP, and can help clients select the best approach for their specific needs.
My expertise includes building responsive and user-friendly interfaces, optimizing API performance, conducting rigorous testing to ensure that the final product is of the highest quality, and integrating third-party APIs.
One of my greatest strengths as an API Development Specialist is my ability to communicate effectively and collaborate with my team to ensure that the project is delivered on time and meets the client's requirements.
Contact me today to discuss your project requirements and learn more about how I can help you achieve your API development goals.
Web Programming Project
Blockchain Development, API Development, API Integration, Data DashboardProgramming Languages
JavaScript, Python, ASP.NETCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$200
|
Standard
$500
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 7 days |
Number of Revisions | 0 | 1 | 2 |
Source Code | - |
Frequently asked questions
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Wade H.
May 31, 2026
OpenEMR/EHR System Administrator/Full Stack Developer - Please read details
Good communication and made best efforts to complete tasks as assigned.
MB
Muhammad B.
May 20, 2026
Full Stack Developer for B2B Analytics
Hafiz did a great job on our B2B Analytics platform. He handled both frontend and backend development professionally and delivered clean, reliable work. Communication was smooth, he understood requirements quickly, and solved issues proactively. His full-stack and API experience added great value to the project. I’d gladly work with him again and highly recommend him.
OA
Oscar A.
May 11, 2026
Website redesign & Api implementation
Hafiz was great!
NQ
Nicolas Q.
May 10, 2026
Senior Full-Stack Engineer for B2B Dashboard Development
Usman did an excellent job throughout our collaboration. He fulfilled all requirements on time, was highly ambitious, solution-oriented, and consistently brought in creative ideas we hadn’t even considered ourselves. Communication was smooth and professional at all times. I would definitely work with him again and can highly recommend him.
AH
Ali H.
Apr 19, 2026
POS app with modern dashboard
Very impressed with the quality of this POS application. The modern dashboard is clean, responsive, and easy to use. Communication was smooth throughout the project. Would definitely hire again.
About Hafiz Usman
Full Stack Developer | Fullstack App & Website | AI & API Integration
91%
Job Success
Darwen, United Kingdom - 3:11 pm local time
🚀 Why Partner With a Senior Full Stack Expert?
Seeking experienced leadership for your next big site or web app? With years of proven experience and over $200,000 in products delivered, I provide the expertise needed to turn complex ideas into a fully functional reality.
- Years of Deep Technical Expertise: I don't just write code; I provide a scalable system that acts as a true business partner for your growth.
- 73+ Projects Successfully Delivered: I have a high attention detail that ensures every deliverable is fully functional across desktop tablet mobile devices.
🛠 Technical Expertise & Tech Stack:
I build modern, scalable web applications using a range of frontend and backend technologies. My expertise spans React, Next.js, Vue.js, Tailwind CSS, and Figma-to-code for clean, interactive UIs; Node.js, JavaScript, TypeScript, Python, and PHP for robust backends; and AI tools like OpenAI API, LangChain, and vector databases for intelligent automation.
My experience also includes cloud infrastructure and DevOps (AWS, Azure, Docker, CI/CD), databases (PostgreSQL, MongoDB, MySQL, DynamoDB), and CMS/E-commerce platforms such as Shopify, WordPress, and WooCommerce.
📈 Highlighted Success:
BigPhotoHunt: As the lead Full Stack Engineer for BigPhotoHunt, I designed a high-traffic social platform. I owned the full system lifecycle—from UIUX design and API design to database schema and AWS scaling. I ensured SEO best practices and optimized for Core Web Vitals, supporting thousands of daily users.
🤝 My Process
- Discovery: We discuss your site goals, business partner requirements, and product needs.
- Architecture: I design a scalable system map before the first line of code is written.
- Rapid Build: I build out your web app, dashboard, or custom registration flow broker website.
- Launch & Scale: I ensure your platform is fully functional across desktop tablet mobile, monitored, and ready for growth.
Are you looking for a senior full stack developer to create a scalable, AI product? Click the "Invite" button, and let’s jump on a quick discovery call.
Beyond core engineering, I provide specialized solutions ranging from high-converting landing page design to complete website design overhauls. As a developer with the eye of a uiux designer, I bridge the gap between aesthetics and performance. I focus on delivering a fully functional user experience, with api integration, with extreme attention detail, ensuring that every landing page or shopify store I develop is not only beautiful but optimized for conversion. Whether you are seeking experienced help for a social media integrated platform or a complex google sheets automation, I ensure the final site meets the highest industry best practices.
Empower & Grow!
Usman
Steps for completing your project
After purchasing the project, send requirements so Hafiz Usman can start the project.
Delivery time starts when Hafiz Usman receives requirements from you.
Hafiz Usman works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & API Design
I will thoroughly analyze client needs and system requirements for API integration. I'll design the API architecture, endpoints, and data structures.
API Development & Testing
I'll code the APIs following best practices and industry standards. Rigorous testing will be conducted to ensure they function correctly and handle different scenarios.