Custom CRMs, portals, and apps — scoped, built, and delivered.
These are the exact conversations that land on our desk from agency owners.
A portal, a dashboard, a marketplace — the kind of build that needs dedicated engineering, not another plugin.
Without an engineer on staff, it's hard to know what a CRM or portal should really cost or take to build — so you're stuck guessing.
Every "can you also build us an app" request becomes a project you'd rather take on than decline or refer out.
Work you've had to decline, refer out, or lose — because it's outside what your team or a template can do. Bring it to us instead.
A few recent builds that show the caliber of work — see the full portfolio for more.
A full multi-tenant client portal with strict data isolation per organization, a three-role permission system, and complete property and tenant management workflows — from listings through lease management to maintenance requests.
View Case Study → Backend Scaling & AutomationA custom page caching layer, a queue-based availability sync running every 5 minutes, and an async OpenAI translation pipeline for listing content.
View Case Study → Marketplace & PaymentsA flexible role-permission system for vendors, admins, and support staff, and a multi-gateway payment architecture spanning Stripe, PayPal, and manual settlement.
View Case Study →Simple to start. No long onboarding. No layers of account managers.
Send over what you need — even if it's rough. Book a free 30-minute call and we'll turn it into a clear technical scope.
A fixed-price quote and timeline you can count on. No fluff, no vague estimates.
We work in your tools, on your timeline, and loop you in at every milestone — no surprises, no scope creep.
Documented, maintainable, and ready for the next project or ongoing support.
You stay in control of the relationship. We're the engineering team working behind you.
Credit us as your technical partner when it strengthens your pitch, or keep us fully behind the scenes — you decide how we're presented.
We work under your account management and your timeline. We're not chasing a bigger seat at the table — just delivering what you scoped.
No relay chain of project coordinators — you talk straight to the engineers doing the work, and get straight answers back.
Webstaller is led by Sharjeel Nadeem, who's spent 4+ years building production software — booking platforms, marketplaces, multi-tenant SaaS. The systems where real users, real payments, and real data all have to hold up at once. Every project is scoped, overseen, and delivered under his direct accountability — backed by the engineers doing the build.
We work directly with agency owners, not through layers of account managers. When you need a technical answer, you get it straight and fast — or we're on the call with you.
We plug in as an extension of your team: your tools, your timeline, your way of working. You stay in control. We're the studio behind you.
“I recommend Sharjeel who is very professional and who helped us at the very beginning of our project. He helped us set up the first brick. Sharjeel is a great guy.”
Mitsualti Pidou · via LinkedIn →