A young studio with an old-school obsession: craft.
We're at the beginning of our story. No inflated numbers, no borrowed logos — just a senior team, a sharp point of view, and work we're proud to sign.
Why Callum C exists
The itch
Callum C started in 2026 with a simple frustration: great products kept dying in handoffs between strategy decks, design agencies, and dev shops. We'd seen it from the inside — and knew a small, senior, end-to-end team could do better.
The build
So we built the studio we always wanted to hire. Designers and engineers in one room, weekly demos instead of status reports, and a rule we refuse to break: never ship average.
The bet
We're intentionally small and intentionally early. That means every project gets founder-level attention — and every client helps shape what this studio becomes.
Mission
Make world-class product design and engineering accessible to ambitious teams of any size — from first-time founders to enterprises.
Vision
Become Southeast Asia's most trusted product studio — known globally for shipping digital products that feel inevitable.
Values we actually practice
Not poster slogans — these are the rules we make trade-offs by, every week.
Craft over volume
We take on few projects and go deep. Quality compounds; volume dilutes.
Speed with intent
Ship in weeks, not quarters — but never by borrowing from quality or accruing silent debt.
Radical transparency
Live previews, weekly demos, honest estimates. You always know exactly where things stand.
Own the outcome
We think like founders, not vendors. If it doesn't move your product forward, we say so.
The road ahead
We'd rather show you a real plan than invented traction. This is what we're building toward.
Studio launch
Founding team assembled, brand live, and the first client builds underway.
First ten launches
Ship ten products end-to-end and publish an honest case study for every single one.
Product lab
Reinvest studio profits into our own SaaS experiments — built with the same craft we sell.
Regional senior team
A distributed senior team across Southeast Asia, serving clients worldwide.
Small on purpose, senior by design
The people who answer your emails are the people who design and build your product.
Muhammad Caesar Rifqi
Founder & CTO
Engineer at heart — owns architecture, code quality, and delivery. Believes reliability is a design decision, not an afterthought.
- Front End
- Backend
- Infrastructure
Gerrard Setiawan
Co-Founder & Creative Director
Leads brand, interface, and motion. Believes the smallest details are what make a product feel inevitable.
- Brand
- UI/UX
- Motion
- Design systems
Build the first chapter with us
Whether you're a founder with an idea or an investor who believes in the region's product talent — we'd love to talk.