You will get a Custom REST API Built in Node or Rails
Project details
NEED A CUSTOM BACKEND OR THIRD-PARTY INTEGRATION? I’LL BUILD A RELIABLE REST API!
I’m Shahwar Khalid, a full-stack developer experienced in building and integrating RESTful APIs using Node.js or Ruby on Rails. Whether you need internal APIs for your product or want to connect with platforms like Stripe, Shopify, or OpenAI, I can help.
Clean, scalable API architecture
Token-based authentication (JWT)
MongoDB / PostgreSQL support
External API integration
Error handling & validation
Swagger/OpenAPI documentation
Let’s make your app backend reliable, secure, and scalable.
I’m Shahwar Khalid, a full-stack developer experienced in building and integrating RESTful APIs using Node.js or Ruby on Rails. Whether you need internal APIs for your product or want to connect with platforms like Stripe, Shopify, or OpenAI, I can help.
Clean, scalable API architecture
Token-based authentication (JWT)
MongoDB / PostgreSQL support
External API integration
Error handling & validation
Swagger/OpenAPI documentation
Let’s make your app backend reliable, secure, and scalable.
Programming Languages
PHP, HTML & CSS, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$250
|
Standard
$450
|
Advanced
$700
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 15 days |
Number of Revisions | 1 | 2 | Unlimited |
Number of Pages | 5 | 10 | 20 |
Design Customization | |||
Content Upload | |||
Responsive Design | - | ||
Source Code | - | - |
10 reviews
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CP
Charles P.
Jun 3, 2025
website development to support product traction
Excellent developers, Very dedicated, focuses, efficient ,and talented. Will definitely hire again four our react js work.
HR
Harvey R.
Dec 9, 2024
Full Stack Developer (NodeJS & NextJS) needed for Performance Audit & Optimisation
It was great experience working with Shahwar. He identified the pain points in the app performance and proposed a new architecture. Would love to work again.
MK
Michael K.
Aug 7, 2024
MERN Stack Developer
Shahwar helped us setup a system from scratch. Very cooperative, great in communication and someone we were happy to renew with another contract. Highly recommended freelancer! I will definitely be using him in the future for any and all React/Node tasks.
MD
Michael D.
Mar 7, 2022
Refactor Ruby on Rails dashboard
Shahware is a ninja Ruby developers. His code quality is good. Great communication skills.
GL
George L.
Oct 4, 2021
Full-Stack developer
Working with Shahwar was a great experience. He is very knowledgeable and reliable and a great communicator.
We hired him for a small job but kept him on long-term as his work was very satisfactory. Aside from high quality of work, he was very punctual and reliable in showing up for daily standups and other meetings. The project we hired him for was successfully completed so we ended the contract, but he will be our go-to-guy for the future.
Thank you Shahwar!
We hired him for a small job but kept him on long-term as his work was very satisfactory. Aside from high quality of work, he was very punctual and reliable in showing up for daily standups and other meetings. The project we hired him for was successfully completed so we ended the contract, but he will be our go-to-guy for the future.
Thank you Shahwar!
About Shahwar
React developer | SAAS developer, Next.js, Full Stack React developer
100%
Job Success
Dubai, United Arab Emirates - 9:45 pm local time
✅ 100% Job Success
✅ $20K+ earned on Upwork
✅ 1,024+ Upwork hours
✅ 8+ years building production web applications
✅ 1M+ user product experience through an AI-powered EdTech SaaS platform
I work with founders, startups, and SaaS teams who need more than a frontend developer. I help turn product ideas, messy workflows, unfinished MVPs, and existing SaaS platforms into clean, scalable, production-ready web applications.
🔥 WHAT YOU CAN HIRE ME FOR
✔️ SaaS MVP development with React, Next.js, Node.js, TypeScript, and APIs
✔️ Admin dashboards, SaaS dashboards, customer portals, and internal tools
✔️ Full-Stack React development with frontend, backend API workflows, and database logic
✔️ API Integration using REST API, GraphQL, Stripe, Supabase, PostgreSQL, webhooks, and third-party tools
✔️ Existing SaaS platform improvement, bug fixing, refactoring, performance optimization, and feature expansion
✔️ Long-term product support for SaaS apps, MVPs, dashboards, and API-connected web applications
Recent wins
• Smodin — AI-powered EdTech SaaS used by 1M+ learners
• Beambox — analytics dashboard powering marketing for 500+ hospitality venues
• Upcall — campaign platform handling 30 000+ outbound calls per day
• EasyLlama — HR-compliance SaaS rolled out across 2 000+ enterprise teams
PRODUCT AREAS I UNDERSTAND
✅ SaaS platforms
✅EdTech products
✅Sales and CRM systems
✅FinTech Dashboards
✅HR Compliance Tools
✅Product intelligence platforms
✅Marketplaces
✅Booking systems & internal business tools
CORE STACK
✅Frontend: React, Next.js, TypeScript, JavaScript, HTML5, CSS3
✅Backend/API: Node.js, REST API, GraphQL, authentication, webhooks
✅Database: PostgreSQL, MySQL, MongoDB, Supabase
✅SaaS Systems: Stripe, subscriptions, dashboards, customer portals, role-based access
✅Cloud Delivery: AWS, CI workflows, deployment support, performance optimization
How I work
✔️ Understand goals, users & risks up front
✔️ Split scope into clear milestones
✔️ Design tidy React / Next.js architecture
✔️ Wire up APIs, data, auth & Stripe correctly
✔️ Ship small, testable releases for fast feedback
✔️ Improve existing code via fixes & optimization
✔️ Communicate with concise, actionable updates
If you are building a SaaS MVP, dashboard, customer portal, internal tool, or API-connected React / Next.js web application, send me a message and I’ll help you map the best technical approach.
Keywords to find me on Upwork: React Developer, Next.js Developer, SaaS Developer, MVP Developer, Full-Stack React Developer, Frontend React Developer, SaaS Dashboard Developer, Dashboard Developer, Admin Dashboard, Customer Portal, Internal Tools, API Integration Developer, REST API, GraphQL, Stripe Integration, Supabase Developer, PostgreSQL, TypeScript, Node.js, AWS, SaaS MVP, Web Application Development, Existing SaaS Platform, Product Scaling, Performance Optimization, Product Rescue
Steps for completing your project
After purchasing the project, send requirements so Shahwar can start the project.
Delivery time starts when Shahwar receives requirements from you.
Shahwar works on your project following the steps below.
Revisions may occur after the delivery date.
Initial Consultancy