Management systems
Inventory, HR, school, clinic, CRM, and custom operations platforms — with roles, workflows, and reports your team trusts.
Available for new projects
I’m Saifullah Rustam, a web & app developer with 4+ years of experience crafting management systems, mobile apps, and websites with Flutter, FlutterFlow, React Native, Bubble, WordPress, and custom code.
What I do
From the database to the last button, I take products from idea to launch — and choose the stack that fits your timeline and budget, not the other way round.
Inventory, HR, school, clinic, CRM, and custom operations platforms — with roles, workflows, and reports your team trusts.
Cross-platform iOS & Android apps in Flutter and React Native, from first sketch to App Store and Play Store release.
Fast, scalable builds with FlutterFlow and Bubble — ideal for MVPs and internal tools, extended with custom code.
WordPress, WooCommerce, and fully custom-coded sites that are fast, editable, and built to convert.
Focus
This is the work I enjoy most. If your organisation tracks people, stock, money, bookings, or tasks, I can turn the spreadsheets and paperwork into a clean system — with web dashboards for admins and mobile apps for the people on the ground.
Selected work

A management system for commercial plazas that tracks shops, tenants, rent, expenses, electricity bills, and maintenance from one dashboard.

A conversion-focused website for a US-based Amazon PPC and advertising agency, built to turn visitors into booked consultations.

A modern website for an AI search visibility agency, featuring an animated "live AI answer" demo across ChatGPT, Perplexity, Gemini, and more.
Expertise
I’ve worked across many frameworks — and I’m always excited to learn the next one. These are the tools I reach for most.
Cross-platform mobile
Production iOS & Android apps from a single Dart codebase.
Visual Flutter
Rapid, polished builds with custom code where it matters.
Cross-platform mobile
JavaScript/TypeScript apps that share logic with the web.
No-code web apps
Full SaaS & internal tools with workflows and databases.
CMS & business sites
Custom themes, plugins, WooCommerce, and editor-friendly sites.
Web development
Hand-built front ends and back ends when off-the-shelf won’t do.
How we’ll work
We map your users, roles, and daily workflows — the real way work gets done.
I choose the right stack, design the data model, and agree on clear milestones.
Weekly demos you can click through, so feedback shapes the product early.
Store releases, deployment, training, and ongoing improvements after go-live.
Insights