The tech stack we use to build enterprise-grade products
PT Rancangin Aja Teknologi — or simply RAT — is a software house & AI product studio. We build web & mobile applications, AI-powered solutions, and in-house SaaS products for businesses across industries and countries.
From early-stage startups to enterprises, we believe every business problem has an elegant technology solution. Our job is to design it together with you.
To be a software house & AI product studio helping businesses around the world transform digitally and sustainably.
To build high-quality digital products through a collaborative, transparent process oriented toward real client outcomes.
Integrity, innovation, and long-term commitment. We're not just a vendor — we're a growth partner for your business.
From idea to launch, from MVP to AI solutions — we're ready to be your technology team.
Bring AI into your product and operations: LLM integration, AI agents & chatbots, RAG over your internal documents, and workflow automation — built secure and production-ready.
Custom web & mobile application development from scratch — using modern stacks like React, Next.js, Node.js, Flutter, and Laravel.
Build your SaaS product — from MVP, multi-tenancy, billing integration, to enterprise scale.
User research, wireframing, prototyping, and product design that's user-friendly and memorable.
Cloud infrastructure setup (AWS, GCP, DigitalOcean), CI/CD pipelines, monitoring, and cost optimization.
Support services, 24/7 monitoring, bug fixing, and feature development for live applications.
Four things that set us apart from a typical agency.
Talk to the engineers actually doing the work — no account-manager middleman.
Every project is built by our own team. No third-party vendors.
Tests, reviews, docs — not optional, our default way of working.
Support, monitoring, and iteration after go-live. We're not a one-shot vendor.
Besides client work, we also build our own SaaS products and tools — ready to power your business.
Turn long videos into short, meaningful clips. Find hooks with AI, clean up transcripts, add captions, and export — on Mac, iPhone, iPad, and Android.
A smart way to manage boarding houses & rentals: properties, units, tenants, and rent billing — with reminders for overdue payments.
Every project runs on a clear workflow — you always know the progress, deliverables, and timeline.
We understand your business problem, target users, and product goals.
Technology roadmap, architecture, wireframes, and clear UI/UX design.
Weekly sprints, transparent via demos & docs, with QA at every milestone.
Production go-live, monitoring, support, and iteration based on feedback.
The person behind Rancangin Aja's vision and direction — making sure every product is built to the same standard.
FounderFounder & CEO · Software Engineer
A software engineer building mobile, web, and backend systems — from native & Flutter apps to APIs and dashboards. The guiding principle is simple: clean, maintainable code.
Leads the development of Rancangin Aja's in-house products from idea to release, with a focus on products that are practical, measurable, and built to last.
Supported by a network of engineers & designers as each project requires.
Honest writing on AI, software development, and the business decisions behind them.
An honest story of building Cuplikin, our AI video clipper: five weeks to the Mac App Store, a rejection from Apple, then iOS and Android from a single Flutter codebase.
A software house that builds its own products learns things client projects don't teach: real costs, maintenance, and user reviews. Here's what that means for you as a client.
An honest guide to WhatsApp AI chatbots for business: how they work, what they can and can't handle, cost ranges, and when a simple auto-reply is enough.
Have a casual chat with our team — free, no commitment. Let's talk about ideas, scope, and estimates.
Tell us your needs — we'll help craft the best solution. Initial consultation is free.
We'll respond within 24 hours.