Senior Delphi Software Developer & System Architect
Engineering,
in practice.
I'm Fajar Donny Bachtiar. I have more than five years of experience building Delphi applications, backend services, and database-driven systems.
Based in Yogyakarta, Indonesia. Working remotely.
From the interface
to the database.
Delphi FMX, VCL, and Object Pascal are at the center of my work, supported by REST and WebSocket services, SQL databases, and server-side integrations.
About my engineering workSelected work
Applications with
a job to do.
Engineering focus
A connected view of the system.
Desktop & mobile
Delphi VCL for Windows. FireMonkey for Android, iOS, and Windows applications.
APIs & integration
REST and WebSocket backend development with WebBroker, DataSnap, JSON, and PHP.
Data & architecture
FireDAC, MySQL / MariaDB, SQL Server, Firebird, and SQLite. Clear responsibilities across the application and its services.

The person behind the work
Hi, I'm Donny.
A senior software developer and system architect based in Yogyakarta, Indonesia. My work brings together application development, backend services, and data.
Alongside professional and independent projects, I publish practical Delphi tutorials through Blangkon FA.
More about me