You will get a full stack app using Next.js, MERN stack or React Native
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Top Rated
Project details
Hi there! I am a full stack web developer with over 6 years of experience. I am passionate about creating clean, elegant, and functional web app that deliver exceptional user experiences.
With my extensive knowledge of Next.js, MERN Stack and other web development technologies, I am confident in my ability to deliver high-quality results for your projects. Whether you need to build a new web app from scratch, revamp an existing one, or add new features, I am here to help.
If you're looking for a skilled and reliable full stack web developer, look no further! Let's work together to bring your project to life. Contact me now to discuss your needs.
Here are my some of the most prominent skillsets
Next.js
MongoDb
Express.js
React.js
Node.js
SQL / NoSQL
Serverless architecture
AWS
Lambda API Gateway DynamoDB Step Functions S3 Cognito CloudFront CloudFormation
⭐ My skillsets are not limited to only the mentioned skillsets but also all the pre-requisites which come in handy when developing any web app like REST API, Redux toolkit, Material UI, Scss which i didn't mention here.
With my extensive knowledge of Next.js, MERN Stack and other web development technologies, I am confident in my ability to deliver high-quality results for your projects. Whether you need to build a new web app from scratch, revamp an existing one, or add new features, I am here to help.
If you're looking for a skilled and reliable full stack web developer, look no further! Let's work together to bring your project to life. Contact me now to discuss your needs.
Here are my some of the most prominent skillsets
Next.js
MongoDb
Express.js
React.js
Node.js
SQL / NoSQL
Serverless architecture
AWS
Lambda API Gateway DynamoDB Step Functions S3 Cognito CloudFront CloudFormation
⭐ My skillsets are not limited to only the mentioned skillsets but also all the pre-requisites which come in handy when developing any web app like REST API, Redux toolkit, Material UI, Scss which i didn't mention here.
Programming Languages
JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $50
These options are included with the project scope.
$50
- Delivery Time 5 days
- Number of Revisions 3
- Number of Pages 5
- Design Customization
- Content Upload
- Responsive Design
- Source Code
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PC
Pablo C.
Feb 11, 2026
AWS Lambda Developer for HIPAA-Compliant Medical Audit System
SR
Snehaja R.
Jan 27, 2026
Bubble Developer
During our initial engagement in 2024, Hasnain acted as the project manager while Haris was the primary developer, which only became clear after the collaboration had started. I initially assumed Hasnain would also be the developer. While this was unexpected, it was not an issue for us, as we operate as an agency ourselves.
At the beginning, we worked smoothly using a milestone-based approach. The scope of work was clearly defined, approved in advance, and delivered as agreed. The work focused on Bubble development, specifically improving and fixing our client portal, and everything went well throughout 2024.
However, toward the end of 2025, when we returned to make fixes and add a few features, the experience quickly became disappointing and unprofessional. Despite continuing with the same scoped, milestone-based process, Hasnain raised concerns after the scope and solution that were being discussed and stated that the time spent scoping was not adequately excessive, requested switching to an hourly rate, and mentioned that their estimates were not always accurate and that they were “losing money.” I found this feedback surprising and unprofessional.
In good faith, I paid the first milestone and even covered five hours instead of the originally estimated two to compensate for any unbilled time. When I asked about delivery, I was told that Haris was working on another client’s project and that there was no clear timeline for completing the work I had already paid for. Shortly after, the payment was refunded on Upwork by Hasnain, which was unexpected and concerning.
Hasnain performed well during our initial engagement. Unfortunately, the recent experience showed a shift from collaboration to a more controlling approach, which damaged trust and made the working relationship unsustainable. While the quality of past work was good, the lack of professionalism and clear communication toward the end was disappointing. I recommend clearly aligning on scope, timelines, and billing expectations upfront to ensure smoother future collaborations.
At the beginning, we worked smoothly using a milestone-based approach. The scope of work was clearly defined, approved in advance, and delivered as agreed. The work focused on Bubble development, specifically improving and fixing our client portal, and everything went well throughout 2024.
However, toward the end of 2025, when we returned to make fixes and add a few features, the experience quickly became disappointing and unprofessional. Despite continuing with the same scoped, milestone-based process, Hasnain raised concerns after the scope and solution that were being discussed and stated that the time spent scoping was not adequately excessive, requested switching to an hourly rate, and mentioned that their estimates were not always accurate and that they were “losing money.” I found this feedback surprising and unprofessional.
In good faith, I paid the first milestone and even covered five hours instead of the originally estimated two to compensate for any unbilled time. When I asked about delivery, I was told that Haris was working on another client’s project and that there was no clear timeline for completing the work I had already paid for. Shortly after, the payment was refunded on Upwork by Hasnain, which was unexpected and concerning.
Hasnain performed well during our initial engagement. Unfortunately, the recent experience showed a shift from collaboration to a more controlling approach, which damaged trust and made the working relationship unsustainable. While the quality of past work was good, the lack of professionalism and clear communication toward the end was disappointing. I recommend clearly aligning on scope, timelines, and billing expectations upfront to ensure smoother future collaborations.
NK
Nicholas K.
Oct 2, 2025
Bubble.io Developer Needed for AI-Assisted File Storage MVP
Hasnain and his team were amazing. Communication is definitely a strong point here. Having a responsive professional and technically talented team was absolutely essential to my work and this was what was provided. Well done! I would definitely recommend Hasnain for a AI front end backend project.
HS
Hanad S.
Jul 29, 2025
A+ Resumes Hiring page
The team did a great job of delivering the hiring page. They were very diligent in completing the task. I have confidence they are going to do a flawless job at fixing the remaining bugs. Thank you, Rafae and Hasnain.
TH
Tommy H.
Jun 26, 2025
Calendar
About Hasnain
Full Stack Developer | React.js | Next.js | AWS Serverless SaaS Expert
93%
Job Success
Karachi, Pakistan - 12:45 pm local time
I design scalable, cost-optimized SaaS applications and MVPs that auto-scale to handle millions of users, integrate with APIs like Stripe, Twilio, OpenAI, and AWS services, and ensure high-performance, secure, and future-proof architecture, so your product grows confidently from MVP to enterprise scale.
Beyond just development, I focus on end-to-end product success, combining UI/UX design, website development, SEO, AEO (Answer Engine Optimization), and GEO (Generative Engine Optimization) to ensure your product not only works flawlessly but also gets discovered, ranks, and converts.
𝐏𝐫𝐨𝐯𝐞𝐧 𝐓𝐫𝐚𝐜𝐤 𝐑𝐞𝐜𝐨𝐫𝐝:
Built and scaled 30+ SaaS, AI, and MVP products for global clients in the US, UK, EU, and beyond, Here’s a glimpse of some recent work:
↳ SoPlan → Serverless appointment scheduling and subscription platform with calendar & payment API integrations (Next.js + Node.js + AWS)
↳ EarlyBirdee → Full Stack AWS job search platform with serverless architecture, ATS job aggregation, Generative AI-based matching, notifications, and subscription management (React.js + Node.js + AWS + AI)
↳ WealthBuilder → Investment portfolio management platform (React.js + Node.js + AWS)
↳ LedgerIQ → AI-powered accounting SaaS with RAG and semantic search capabilities (Vue.js + FastAPI + AWS + AI)
↳ APlusResumes → AI-powered resume improvement platform providing personalized feedback and error correction (React.js + AWS + AI)
↳ SaddleFit → Multi-tenant e-commerce platform for saddle fitting & sales (React.js + Node.js + AWS)
→ 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫
↳ Next.js / React.js Development → High-performance, SEO-friendly, and scalable frontends.
↳ AWS Serverless Backends → Event-driven, cost-optimized, and auto-scaling architectures.
↳ SaaS & MVP Development → Investor-ready platforms built fast, stable, and secure.
↳ API Integrations → Stripe, PayPal, OpenAI, Twilio, Zoom, Google APIs, and more.
↳ Performance & Cost Optimization → Lightning-fast apps + optimized AWS bills.
𝐂𝐨𝐫𝐞 𝐒𝐤𝐢𝐥𝐥𝐬:
With 8+ years in full-stack SaaS and AI development, I specialize in building scalable, production-ready apps powered by React.js / Next.js and AWS Serverless architecture.
Frontend:
↳ React.js, Next.js, TypeScript, JavaScript (ES6+), Tailwind CSS, Redux, React Query, shadcn/ui
Backend:
↳ Node.js, NestJS, Express.js, Python (FastAPI / Django / Flask), REST & GraphQL APIs, tRPC, Integrations (Stripe, OpenAI, Zoom)
Cloud & Infrastructure:
↳ AWS Lambda, API Gateway, DynamoDB, S3, CloudFront, Cognito, EventBridge, Step Functions, ECS/Fargate, CDK, Terraform, Serverless Framework
AI & Automation:
↳ OpenAI, AWS Bedrock, LangChain, Hugging Face, for AI-powered SaaS and chatbots
DevOps & Delivery:
↳ CI/CD (CodePipeline, CodeBuild, GitHub Actions), Docker, Infrastructure as Code, Agile workflows (Jira, Git)
𝐇𝐞𝐫𝐞’𝐬 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮:
→ Full-Stack SaaS Solutions
↳ Build React.js and Next.js web applications for B2B and B2C platforms that scale from MVP to millions of users. I deliver secure, modular, and production-ready frontends fully integrated with AWS backend services, ensuring seamless performance and user experience.
→ Serverless & Event-Driven Architecture
↳ Architect AWS-native serverless systems with Lambda, DynamoDB, API Gateway, AppSync, Step Functions, and EventBridge, integrated with React.js / Next.js frontends, enabling highly responsive, auto-scaling applications.
→ Cost & Performance Optimization
↳ Optimize AWS infrastructure costs while ensuring lightning-fast frontend and backend performance, code efficiency, and reliable scaling.
→ Cloud & DevOps Integration
↳ Set up CI/CD pipelines, Docker, and AWS deployments to ensure smooth full-stack delivery, faster releases, and minimal downtime.
→ End-to-End API & Feature Integration
↳ Integrate REST & GraphQL APIs, third-party services (Stripe, PayPal, OpenAI, Twilio, Zoom), and cloud features, connecting frontend UI with AWS backend systems for seamless SaaS functionality.
→ AI & Automation Integration
↳ Build AI-powered features, chatbots, and automation tools in your web apps using OpenAI, LangChain, AWS Bedrock, and SageMaker, enhancing engagement and functionality.
𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐓𝐚𝐤𝐞 𝐭𝐡𝐞 𝐍𝐞𝐱𝐭 𝐒𝐭𝐞𝐩?
If you’re building something ambitious, you don’t need another freelancer —
you need someone who takes full ownership and thinks about scale, costs, and architecture like your company’s CTO.
𝐃𝐫𝐨𝐩 𝐦𝐞 𝐚 𝐜𝐨𝐮𝐩𝐥𝐞 𝐨𝐟 𝐭𝐢𝐦𝐞 𝐬𝐥𝐨𝐭𝐬, 𝐚𝐧𝐝 𝐈’𝐥𝐥 𝐣𝐮𝐦𝐩 𝐨𝐧 𝐚 𝐜𝐚𝐥𝐥 𝐭𝐨 𝐬𝐞𝐞 𝐡𝐨𝐰 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮.
Best,
Hasnain Khan
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Delivery time starts when Hasnain receives requirements from you.
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Revisions may occur after the delivery date.
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