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Portrait of Tommy Wijaya

Software Engineer

Tommy Wijaya

Backend-focused engineer building reliable systems and practical products, while staying close to thoughtful user interfaces and clean interaction design.

Based in Jakarta, Indonesia 🇮🇩

Work Experience

Central Financial X

Led small engineering team in developing low latency API services for financial data analytics and monitoring.

Go PostgreSQL Redis TimescaleDB Redpanda Kafka Connect REST API GraphQL gRPC AWS Metabase pytest

Tokopedia

Built and maintained backend services for high-traffic commerce workflows.

Go PostgreSQL Redis NSQ Kafka GraphQL gRPC

AccuSentry Inc., USA

Developed desktop and embedded-adjacent software for industrial monitoring systems.

C C++ MFC

Selected Projects

Excel Viewer Live

Consulted on and built an offline Android application to accelerate Purchase Order evaluations by implementing local indexing and search for historical orders

Frontend & Backend: Dart (Android), SQLite

PLC Dot Matrix Display Live

Dot matrix display system for PLC-based industrial production line, providing real-time status updates and alerts.

Software: Arduino (C)

Hardware: Arduino, Haiwell PLC, P10 LED Display

Mortgage (KPR) Calculator Live

Simple mortgage calculator supporting tiered interest with principal and interest breakdown.

Frontend: HTML, CSS, JavaScript, Bootstrap

View project

Digital Queue System Live

Cross-platform offline queue management web app with notifications via TV display and speaker audio.

Frontend: HTML, CSS, JavaScript, Kotlin (Android), C# WinForms (Desktop)

Backend: Redis, Go

Hardware: POS printer, Android TV

Queue Interface Live

Web interface for real-time queue information accessible from visitors' mobile phones. Manage deployment in client's bare metal server.

Frontend: HTML, CSS, JavaScript

Backend: MySQL, Go

Infra: Ubuntu, Nginx

Automated Photobooth Live

Multi-camera capture system using synchronized DSLR cameras and smart lamp control triggered by face recognition workflow.

Frontend: C# WinForms (Desktop)

Backend: MySQL, C#

Hardware: Canon DSLR, Arduino, LED Lamp

Infra: FTP

Contact

Open to backend and platform engineering collaborations.