Multi-tenant architecture
One codebase that safely serves many customers, with tenant isolation and role-based access.
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SaaS product development
I build SaaS products from the first version to paying customers: multi-tenant architecture, subscriptions, billing, admin dashboards and reporting, on ASP.NET Core and React.
- 100% Job Success
- Top Rated Plus on Upwork
- 56 Upwork jobs
- 7,300+ hours worked
What I do
SaaS product development services
What you can hire me for.
Subscriptions and billing
Stripe subscriptions, plans, trials and invoices.
Admin dashboards
Back-office tools for your team to manage customers, usage and support.
MVP to production
A first version you can sell, built so it can grow without a rewrite.
SaaS takeovers
Picking up a product another developer started, stabilising it and continuing the roadmap.
Reporting and analytics
Customer-facing reports and embedded analytics.
Proof
Related projects
Past work in this area. See all 12 projects.
Multi-tenant SaaS
Truck Billing Platform
A billing and reconciliation platform that connects dispatch data, rate confirmations, driver documents, invoices and payments in one workflow.
- Automated load ingestion and document collection
- Invoice validation, exception handling and batch creation
- Payment tracking and collection visibility
- React
- .NET Core
- Multi-tenant
- SaaS
HVAC SaaS marketing website
RTUMap
The marketing website for a commercial HVAC survey platform, built from scratch to turn visitors into trial users.
- Landing pages, pricing plans, comparison tables and FAQs
- Free-trial A/B testing, UTM tracking and Google Analytics 4 events
- Zendesk chat, hosted on Cloudflare Pages
- JavaScript
- Google Analytics 4
- A/B testing
- Cloudflare Pages
Vulnerability management platform
Bafatech
A platform for identifying, prioritising and mitigating security risks, with a fast experience across devices.
- Responsive Next.js and React frontend
- Secure backend APIs and data workflows
- Server-side logic for risk prioritisation
- Next.js
- React
- .NET Core
Client reviews
What Upwork clients say
Real reviews from completed Upwork contracts. Read all reviews.
★★★★★
“Hashir has been excellent to work with. He takes full ownership of the work, understands problems quickly and always comes back with clear, practical solutions. He is very responsive, keeps me updated at every step, and explains technical things in plain English. Reliable, thorough and genuinely committed to delivering a great service. I would highly recommend him and look forward to continuing to work together.”
★★★★★
“Hashir was great to work with on this project. He was very responsive and always seeking ways to deliver quality. He made sure to understand requirements and followed up with questions in instances where certain details didn't make sense. He took ownership of the requirements and ran with it.”
★★★★★
“I had a great experience working with Hashir from start to finish. Communication was clear and consistent, and he took the time to fully understand my requirements before getting started. The work was delivered on time and to a very high standard, with great attention to detail and professionalism throughout the project. He was responsive to feedback, made revisions quickly, and always maintained a positive and professional attitude.”
How it works
How we work together
A simple process with no surprises.
Share your requirements
Send a short brief on Upwork, WhatsApp or LinkedIn. I reply with questions and a practical plan.
Scope and estimate
You get a clear scope, timeline and an hourly or fixed-price estimate before any work starts.
Build in weekly steps
I ship working software in small releases and keep you updated at every step.
Launch and support
I deploy to production, hand over the code and stay available for fixes and new features.
Questions
Common questions
Short answers before you get in touch.
Can you build a SaaS MVP?
Yes. I scope a first version around the features your first customers need, then build it on an architecture that supports growth.
Can you take over my existing SaaS product?
Yes. I review the code, fix what is unstable and then continue development. One of my recent Upwork contracts was a full SaaS takeover.
Which stack do you use for SaaS?
ASP.NET Core and C# on the backend, React or Next.js on the front end, SQL Server or PostgreSQL for data, Stripe for billing and Azure for hosting.
More services
Other ways I can help
Each service has its own page.
Have a project in mind?
Message me on Upwork, WhatsApp (+92 313 2613274) or LinkedIn with your requirements, and I will reply with a practical plan.