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.
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.
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
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?
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.
What Client Say
Excellent work, went above and beyond to convert my PSD to HTML. Awesome guy, great communication. I highly recommend him to anyone looking for honest, good work with a quick turnaround.
Faridul was communicative and cooperative in both developing the plan for our project and executing. Due to some unforeseen circumstances, he had to adjust our schedule, but was quick to put in extra effort to get the project back on track.
I am extremely pleased with the website that Farid created for me. Their work exceeded my expectations in every way. He demonstrated exceptional skill and professionalism throughout the project. They were responsive to my needs and ideas and delivered a website that perfectly captured the essence of my business.
Faridul did an excellent job on this sprint. The code quality was clean, organized, and easy to work with, and he handled a pretty complex UI build without hesitation. His professionalism showed throughout the project — steady communication, quick responses, and always willing to push through technical hurdles to keep things moving. Overall, reliable, skilled, and committed. I appreciate the hard work and look forward to working together again on later stages.
Faridul has been a strong contributor on our team. Solid technical skills, clean and maintainable work, and consistent delivery. He communicates clearly, responds quickly to feedback, and often goes beyond the brief to improve quality. Documentation/handoff has been smooth. We’re continuing to work with him and recommend him
Faridul did solid, professional work on a complex platform build involving backend services, . He was responsive, polite, and easy to work with throughout, even across time zones and holidays. The final result delivered the core functionality we needed, and he was transparent and reliable from start to finish. I’d happily work with him again and recommend him without hesitation.
Let's Work Together
Have a project in mind? I reply within 24 hours.
