You will get a full-stack SaaS or CRM web app built end-to-end
Top Rated
Top Rated
Project details
I build production-ready SaaS and CRM web applications end to end - from an empty repo to a live product your customers can pay for.
What you get:
• A full-stack app in Next.js/React with a Node.js or Python backend and a properly designed PostgreSQL schema
• Secure authentication with role-based access, Stripe or subscription billing, and an admin panel you can actually use
• Dashboards, reporting and CRM features: contacts, pipelines, activity logs, automated email
• AI where it earns its place: LLM-powered search, document processing, chat and agent workflows
• Clean, documented, tested code deployed with CI/CD and handed over in full
How I work: scope agreed in writing before we start, a live staging link updated every week so you always see progress, and clear communication in your timezone. No black-box development and no surprise invoices.
Not sure which tier fits? Send me a short description of your idea and I will tell you honestly what it will take.
What you get:
• A full-stack app in Next.js/React with a Node.js or Python backend and a properly designed PostgreSQL schema
• Secure authentication with role-based access, Stripe or subscription billing, and an admin panel you can actually use
• Dashboards, reporting and CRM features: contacts, pipelines, activity logs, automated email
• AI where it earns its place: LLM-powered search, document processing, chat and agent workflows
• Clean, documented, tested code deployed with CI/CD and handed over in full
How I work: scope agreed in writing before we start, a live staging link updated every week so you always see progress, and clear communication in your timezone. No black-box development and no surprise invoices.
Not sure which tier fits? Send me a short description of your idea and I will tell you honestly what it will take.
Programming Languages
JavaScript, Python, ASP.NETCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$1,000
|
Standard
$3,000
|
Advanced
$7,500
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 30 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 5 | 12 | 25 |
Design Customization | - | ||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$300 - $1,500
Additional Revision
+$150
Additional Page
(+ 2 Days)
+$200Frequently asked questions
30 reviews
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This project doesn't have any reviews.
DS
Dhanesh S.
Apr 15, 2026
Web Application Development for Cough Analysis
Sheshank is a Good Listener. He really takes time out to understand your requirements and then proposes changes to the plan best suited to develop good solutions. I also liked the regular updates on the progress of work from his Team.
KW
Kieran W.
Apr 14, 2026
API Integration Developer for Health Platforms
great experience - will hire again
LF
Laurence F.
Jan 15, 2026
Livekit Frontend Integration Developer
did not do what I asked, did work outside of the scope of the. project. Would not hire again
DM
Devon M.
Oct 22, 2025
Contactless Payment Device Needed to be Made Seamless
We’re concluding the project as the remaining milestones have not been completed and are unlikely to proceed. This is because of the difficult landscape, not Sheshanks expertise. No hard feelings — I appreciate the effort that went in up to this point.
VB
Vasudha B.
Jul 9, 2025
Build a mobile app framework using capacitor js
About Sheshank
Full-Stack Web & Mobile Developer | 200+ Projects Delivered
91%
Job Success
Mohali, India - 7:25 pm local time
With 11+ years of full-stack engineering experience and 200+ completed projects across the USA, UK, UAE, Australia, and Europe, I combine deep technical range (React, Node.js, Python, Flutter, React Native) with real product ownership - I've built and launched my own SaaS and eCommerce brands end-to-end, not just client work. This gives me a business-first perspective most developers lack.
I help clients with:
- Full-stack web apps built on React, Next.js, Node.js, and Python
- Cross-platform mobile apps using React Native and Flutter
- SaaS, CRM, and ERP platforms with multitenant architecture and dashboards
- AI automation: chatbots, OCR/document processing, LLM integrations, and workflow agents
- Payment and CRM integrations including Stripe, HubSpot, Salesforce, and QuickBooks
- Cloud deployment and DevOps on AWS with CI/CD pipelines
Top Rated freelancer on Upwork with a 100% Job Success Score and over $199,000 earned across 42 projects. Delivered an enterprise portal for McDonald's using .NET and Angular, and built and launched my own eCommerce brand, The India Decor, from scratch. Clients describe me as having 'exceptional collaboration' and being 'proactive, patient, and extremely professional.'
Ready to build something your users love and your business can rely on? Send me a message with your project details and I'll respond within a few hours.
Steps for completing your project
After purchasing the project, send requirements so Sheshank can start the project.
Delivery time starts when Sheshank receives requirements from you.
Sheshank works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery and scope lock
We run a kickoff call, agree the feature list, data model and success criteria, then I send a written scope and delivery plan so there are no surprises later.
Architecture and UI design
I set up the repository, database schema and API structure, then design the key screens. You approve the flows and the look before any production code is written.