SaaS & Multi-Tenant Platforms
Multi-tenant and multi-portal products on Next.js, Node.js and PostgreSQL: tenant isolation, role-based access, and the admin tooling around it.
I'm Shahid Monowar — a full-stack engineer from Bangladesh. I help founders and teams ship production-grade web apps with Next.js, React, Node.js, and TypeScript. SaaS platforms, booking and payment flows, ERP and business systems, built so the business logic holds up.
Next.js, React, Node.js, TypeScript and PostgreSQL: the toolchain I've shipped production platforms with.
Based in Dhaka (GMT+6). Regular overlap with US, EU, MENA, and APAC working hours.
Replies within 24 hours. Weekly milestones, not vague monthly check-ins.
Selected service areas. Got something else in mind? Send a brief — I'll tell you straight if it's a fit.
Multi-tenant and multi-portal products on Next.js, Node.js and PostgreSQL: tenant isolation, role-based access, and the admin tooling around it.
Booking flows and payment gateway integrations: webhooks, refunds and cancellation rules, with booking and payment states kept in sync.
Inventory, orders, approvals and reporting for teams that run their daily operations on software.
REST APIs, database design, background jobs and third-party integrations, built so the data stays correct as the product grows.
End-to-end Next.js and React apps, from MVP to production, with CI/CD from day one.
Adding practical AI features to existing products: chat assistants, translation and AI-assisted workflows with OpenAI, Claude or Gemini.
A simple, transparent flow from first message to handover.
30 minutes to understand your goals, scope, timeline, and constraints. No commitment.
A clear written plan with milestones, deliverables, pricing model, and a realistic timeline.
Weekly updates, demo links, and source access. Production deploys with CI/CD from day one.
Documentation, transfer, and a support window — or transition into an ongoing retainer.
Tell me what you're building. I'll respond within 24 hours with honest feedback and next steps.