You will get secure third party API integrations for your application

Project details
Need to connect your application with a third-party service securely and reliably? I specialize in building production-ready API integrations that handle real business logic, payments, and data synchronization.
I have 4+ years of full-stack development experience and have built integrations from scratch for real production systems involving payments, POS, and financial platforms.
I can help you with:
Third-party API integrations (REST / SOAP)
Payment integrations (Stripe, Modulr)
POS integrations (Toast, Heartland POS, etc.)
Pension integrations (NEST, Smart Pension, etc.)
Webhooks & real-time event handling
Debugging and fixing broken API integrations
Tech Stacks, I'm proficient in:
Ruby on Rails
FastAPI / Django
MERN Stack
Send me a message before placing an order so I can understand your requirements and suggest the best approach.
I have 4+ years of full-stack development experience and have built integrations from scratch for real production systems involving payments, POS, and financial platforms.
I can help you with:
Third-party API integrations (REST / SOAP)
Payment integrations (Stripe, Modulr)
POS integrations (Toast, Heartland POS, etc.)
Pension integrations (NEST, Smart Pension, etc.)
Webhooks & real-time event handling
Debugging and fixing broken API integrations
Tech Stacks, I'm proficient in:
Ruby on Rails
FastAPI / Django
MERN Stack
Send me a message before placing an order so I can understand your requirements and suggest the best approach.
Programming Languages
JavaScript, Python, Ruby/Ruby on RailsCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$30
|
Standard
$70
|
Advanced
$200
|
|---|---|---|---|
| Delivery Time | 1 day | 5 days | 10 days |
Number of Revisions | 0 | 1 | 3 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$10
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DD
David D.
Jul 4, 2026
Python Fast API Developer | AI Conversation History (FastAPI, OpenAI)
Highly recommend Talha! He delivered top-quality work on a tight budget and timeline with continuous communication. Will definitely hire him again!
About Talha
Full-stack Developer | MVP SaaS | Rails, Python, React.js
Lahore, Pakistan - 10:58 pm local time
I'm a Full Stack Developer specializing in React.js, Ruby on Rails, Python, FastAPI, and Django, helping startups and businesses build scalable web applications, develop new features, integrate third-party services, and maintain existing products. From MVP development to long-term product maintenance, I focus on writing clean, maintainable code that supports business growth.
I work best with startups, SaaS companies, agencies, and growing businesses that need a developer who can contribute across the entire application lifecycle, from planning and implementation to deployment and ongoing support.
Services I provide:
* Ruby on Rails Development
* Full Stack Web Application Development
* React.js & Next.js Development
* Python, FastAPI & Django Development
* REST API Development & Third-Party API Integration
* Backend Development & Business Logic Implementation
* Frontend Development with TypeScript
* PostgreSQL Database Design & Optimization
* Application Maintenance, Feature Development & Bug Fixes
* Performance Optimization & Troubleshooting
* MVP Development and SaaS Product Development
* Payment Gateway Integration (Stripe, PayPal)
* Deployment, Docker, AWS, Git & CI/CD Workflows
Technologies & Tools:
React.js, Next.js, Ruby on Rails, Python, FastAPI, Django, TypeScript, JavaScript, PostgreSQL, Docker, AWS, Git, REST APIs, HTML, CSS, Tailwind CSS, CI/CD, Stripe, PayPal.
Over the past 4+ years, I've built and maintained production web applications, integrated external services, developed scalable APIs, and delivered features that help businesses launch faster and improve their products with confidence.
If you're looking for a developer to build, improve, or maintain your web application, send me a message. I'd be happy to discuss your project and explore how I can help.
Steps for completing your project
After purchasing the project, send requirements so Talha can start the project.
Delivery time starts when Talha receives requirements from you.
Talha works on your project following the steps below.
Revisions may occur after the delivery date.
I'll thoroughly read the documentation and move to the implementation.