Understand the operation.
Interfaces sit inside real work. We map the people, environments, exceptions, and consequences first.
Small by design.
Serious about delivery.
perpahmian.tech is an independent product engineering studio led by Fahmi Bastari in Indonesia.
Why this practice exists
Useful software begins with understanding the work around it—not with choosing a framework.
Many product failures start at the seams: the field workflow nobody mapped, the admin screen treated as an afterthought, the architecture that assumes perfect connectivity, or the hand-off where context disappears.
Our practice keeps those seams visible. Product thinking, interface decisions, and engineering stay connected from the first conversation to the working release.
Founder-led practice
Fahmi Bastari
Founder & Product Engineer
Fahmi leads product definition, interface decisions, and engineering delivery. Clients work directly with the person responsible for shaping and building the product, with specialist collaborators involved when the scope requires them.
This structure keeps context close to implementation and accountability clear from the first conversation through release.
Discuss a projectPrinciples that shape the work.
Not slogans. These are the checks we return to during a build.
Make complexity legible.
Good systems can be technically deep without making users carry that complexity.
Build for the imperfect day.
Weak networks, old devices, incomplete data, and human error are design inputs—not edge cases.
Leave a maintainable system.
The code, content model, and decisions should remain understandable after delivery.
- Base
- Indonesia
- Structure
- Founder-led studio
- Work
- Remote & collaborative
- Archive
- 18 documented builds