Hi, I'm
Faridul Islam.
Solution architect & full-stack engineer specializing in multi-tenant SaaS, real-time systems, and cross-platform mobile. I ship production Next.js, Express, and React Native applications with end-to-end TypeScript.
Featured Projects
Hover the mockup to explore — spanning web, mobile, and SaaS.
Zahara AI
A multi-tenant platform for building AI agents across four builder surfaces — conversational, visual, full-IDE, and guided — powered by a Next.js App Router front end and a FastAPI backend.
I build multi-tenant SaaS — not just websites.
I'm a full-stack engineer and solution architect who ships production systems for clients worldwide. My focus is the Next.js · TypeScript · Node.js stack with MongoDB or PostgreSQL, plus React Native (Expo) for the mobile side. I write end-to-end type-safe code, validate every boundary with Zod, and document APIs with OpenAPI.
Recent work includes a multi-tenant geo-local services marketplace (booking lifecycle, real-time chat, Stripe subscriptions, dispute resolution), a security workforce-management SaaS with 14 modules, and a multi-tenant AI agent platform. Currently open to freelance & contract opportunities.
Skills & Tools
A curated stack I use to design, build, and ship robust, scalable products — with proficiency built over years of shipping real work.
Services
I take projects end-to-end — from architecture to a deployed, documented product you can hand to your team.
Multi-Tenant SaaS & Marketplaces
Production platforms with tenant isolation, role-based access, billing, and real-time features — the kind that actually ship and scale.
- Booking / subscription lifecycle
- Stripe payments & webhooks
- Admin dashboards & analytics
Backend & Solution Architecture
Scalable API design, data modeling, auth, and real-time systems — built type-safe from the boundary in, and documented to last.
- Typed REST APIs + Zod validation
- Auth & session security
- Socket.io real-time layers
Cross-Platform Mobile
React Native (Expo) apps that share TypeScript with the web and feel native on both platforms, including realtime and AI features.
- iOS + Android from one codebase
- Realtime & AI integrations
- App Store / Play Store delivery
Figma → Code & Optimization
Pixel-accurate Next.js frontends from your designs — plus audits that fix bugs, harden security, and make slow apps fast.
- Design-to-React conversion
- Core Web Vitals & performance
- Security & code-quality audits
How I Work
A predictable, milestone-driven process — so you always know what's shipping next and what it costs.
Discovery & Scope
We align on the problem, success criteria, and a fixed milestone plan — no vague, open-ended billing.
Architecture First
I model the data, define API contracts, and lock a type-safe foundation before any feature code is written.
Iterative Delivery
You get working software in milestones with a demo at each phase — so there are no surprises at the end.
Hardening & Handover
Security audit, docs, and deployment — plus a walkthrough so you or your team can fully own the code.
Have a project in mind?
Experience
The path that shaped my engineering philosophy.
Freelance Solution Architect & Full-Stack Developer
Independent — Worldwide clientsDesigning and shipping multi-tenant SaaS platforms end-to-end. Recent engagements include a geo-local services marketplace (Next.js 16, Stripe, Socket.io, dispute resolution), a 14-module security workforce management platform (Node.js/Express + Zod + OpenAPI), and a multi-tenant AI agent builder (Next.js + FastAPI). Typical scope spans architecture, backend, frontend, mobile, and production deployment.
Full-Stack Developer (Level 2 Seller)
Fiverr — RemoteBuilt and maintained custom web and mobile applications for clients across e-commerce, healthcare, and education. Gathered requirements, designed scalable solutions, and delivered production-quality code on schedule with a 4.8★ rating and 100% response rate.
Let's Work Together
Open to freelance projects, full-time roles, and interesting collaborations.
Have a project in mind? I reply within 24 hours.
