You will get a full stack third party api integrations developer
Rising Talent
Rising Talent
Project details
I offer seamless integration of any external API you need, whether it’s for payments like Stripe, PayPal, Google Pay, or Apple Pay; messaging through Twilio; or even hardware integrations like Star Micronics printers. I handle everything from authentication to error handling, logging, and documentation.
Whether your backend is in Ruby on Rails, Node.js, or another modern framework, I’ll make sure your integrations are secure, reliable, and production-ready.
Whether your backend is in Ruby on Rails, Node.js, or another modern framework, I’ll make sure your integrations are secure, reliable, and production-ready.
Programming Languages
JavaScript, Ruby/Ruby on Rails, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included $500
These options are included with the project scope.
$500
- Delivery Time 7 days
- Number of Revisions 3
- Number of Pages 7
- Source Code
Frequently asked questions
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GO
Glen O.
Sep 6, 2025
Development work for a SaaS platform
Mudassar is a diligent and capable developer who is an asset to any team.
He is responsive and communicative and will provide suggestions to help make things better.
He is able to quickly grasp an understanding of the project and if he is unsure of anything, he will perform research and due diligence before commencing the activity.
He is responsive and communicative and will provide suggestions to help make things better.
He is able to quickly grasp an understanding of the project and if he is unsure of anything, he will perform research and due diligence before commencing the activity.
About Muddasar
Full Stack Developer | Ruby on Rails & React | SaaS Platforms
Lahore, Pakistan - 12:13 pm local time
I don't just write code. I close gaps that cost you money and customers.
The proof:
🔧 Built a complete Twilio SMS system from scratch at CoachVantage for confirmations, reminders, cancellations, reschedules, fully automated with consent management and credit-based billing. Result: zero double charges. Ever.
💳 Walked into a production system leaking money through duplicate Stripe and PayPal invoices and fixed it before it became a customer-trust problem.
⚙️ Integrated Hasura GraphQL into a Rails backend → 45% faster data fetch. Added Redis caching under heavy load → 40% faster API response times.
Here's how I work: I don't wait for instructions, I ask the right questions before writing a single line. I don't disappear mid-project. I own what I build from start to finish, no hand-holding required.
My stack, if you're checking boxes:
Languages: JavaScript, TypeScript, Python, Ruby
Frontend: React.js, Next.js, React Native, Tailwind CSS, Redux, Vite, Jest
Backend: Ruby on Rails, REST APIs, GraphQL, RSpec, Sidekiq, JWT, OAuth 2.0
Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB
Cloud: AWS (EC2, S3, RDS, Lambda, SQS), Docker, GitHub Actions, CI/CD
Integrations: Stripe, Twilio, Mailchimp, Mandrill, Webhooks, OpenAPI
If your project touches any of this then let's talk. I don't miss deadlines, and I don't do "good enough."
Steps for completing your project
After purchasing the project, send requirements so Muddasar can start the project.
Delivery time starts when Muddasar receives requirements from you.
Muddasar works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
Understand your use case, tech stack, and API provider details.
Credential Setup
Collect API keys, tokens, and sandbox credentials from the client.