I will build a scalable saas or real time web app with nextjs, reactjs and supabase


About this gig
Need a scalable SaaS platform, real-time collaboration tool, or modern web application? I will build a productionready, highperformance web app with real-time features using Next.js, React, Supabase, and Tailwind CSS.
I can build:
- SaaS platforms and subscription management systems
- Real-time collaboration tools (chat, live editing, dashboards)
- Project management and productivity apps
- Event portals and booking systems
- Custom admin panels and user dashboards
My expertise:
- Built a Real-time research collaboration tool (ResearchCollab) with Supabase WebSockets, achieving 50% faster sync.
- Developed a SaaS winery management platform (Huntavino) used by 50+ businesses.
- 6+ years experience delivering scalable apps for international clients.
Tech stack: Next.js, React, TypeScript, Supabase (auth, DB, Real-time), Tailwind, Vite, Node.js, REST/GraphQL APIs.
- Send me your idea or existing system, and I'll propose a clear technical plan, milestones, and delivery timeline before we start.
Get to know Danish Karim
Senior Full Stack and AI Developer, React, Nodejs, AWS, LLM Integration
- FromPakistan
- Member sinceMar 2018
- Avg. response time2 hours
- Last delivery3 months
Languages
Urdu, English
My Portfolio
Other Software Development Services I Offer
FAQ
Can you build a SaaS without real-time features?
Yes, I build both real-time and traditional SaaS platforms. Real-time features (like live chat or updates) are optional and can be added based on your needs.
Do you handle subscription payments and user management?
Yes, I can integrate Stripe, PayPal, or other payment gateways and build full user management systems with roles, permissions, and dashboards.
Can you work with our design/UI files?
Absolutely. I can implement designs from Figma, Adobe XD, or Sketch with pixel-perfect accuracy using React and Tailwind CSS.
What’s your experience with Next.js and Supabase?
I’ve built multiple production apps with Next.js (SSR, ISR) and Supabase (auth, real-time, database). Recent projects include ResearchCollab (real-time tool) and Huntsavino (SaaS platform).
Do you provide documentation and handover?
Yes, every project includes technical documentation, code comments, and a live handover session to ensure your team can manage the system.
Can you scale the app later as we grow?
Yes. I design the architecture with scalability in mind (database schema, API design, auth, roles) so we can add new features and users without rewrites.
What’s your experience with real-time features and WebSockets?
I’ve built production apps with live collaboration, presence, and activity feeds using Supabase real-time/WebSockets and similar technologies, including a research collaboration tool used across multiple teams.
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
S soney09
Repeat Client

United States
He's a JS expert! Troubleshooted my bug super quick!
Helpful?K 
kendo1990

Namibia
Great seller. Easily understood the request and completed with quality and on time. Well recommend.
Helpful?F 
farislui

Hong Kong
Sometimes it's hard to explain and communicate what we want a script/ code to work, but this seller understand is nice and smart, you just explained a bit, he understood everything !
D 
Seller's Response
Helpful?
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
S soney09
Repeat Client

United States
He's a JS expert! Troubleshooted my bug super quick!
Helpful?K 
kendo1990

Namibia
Great seller. Easily understood the request and completed with quality and on time. Well recommend.
Helpful?F 
farislui

Hong Kong
Sometimes it's hard to explain and communicate what we want a script/ code to work, but this seller understand is nice and smart, you just explained a bit, he understood everything !
D 
Seller's Response
Helpful?

