Rio Gesulgon

SICPA · Malaysia

• Build and maintain backend, web, and desktop solutions supporting AI- and search-driven product experiences using Java, Spring Boot, Angular, JavaFX, Kafka, PostgreSQL, Keycloak, Docker, and Linux.
• Deliver production services that power AI and search experiences across products, with a focus on quality, scalability, security, and long-term maintainability.
• Contribute to system design and code reviews, helping maintain a clean, well-documented codebase and stronger engineering standards across the team.
• Coordinate technical delivery with internal and external partners, translating product requirements into executable engineering work.

SICPA · Malaysia

• Delivered backend services, web applications, and computer vision solutions for mobile and enterprise products using Java, J2EE, Spring Boot, Angular, and Python.
• Built and maintained Java Spring Boot API services that enabled core mobile application functionality with strong emphasis on reliability, security, and scalability.
• Developed and supported Angular web applications, contributing to end-to-end delivery across frontend and backend components.
• Developed computer vision models, supporting applications, and internal development tools using Python to expand machine learning capabilities.

Standard Chartered Bank · Malaysia

• Led the development, delivery, and maintenance of multiple projects using Java, J2EE, Spring Boot, Oracle, MQ, and Docker.

HSBC Software Development Malaysia · Malaysia

• Developed banking solutions using Java, J2EE, Spring, Adobe Flex, Struts, and Maven for the Global Business Funds department.

DHL IT Services · Malaysia

• Developed the Electronic Proof of Delivery modules using Java, Spring, Apache Struts, Maven, and Git for the courier service.

Sabre Airline Solutions · Philippines

• Guided junior developers and provided training; introduced software testing using Java technologies, JUnit, and Sonar.

Lawson Software · Philippines

• Developed frontend components for the company product used by multiple medium-scale retail companies globally using Java.
• Developed a web platform built from the ground up using Java servlet technology.

5DB Consulting · Philippines

• Developed the internal sales opportunity management system for Fujitsu Philippines using C#, .NET, and Java backend components.

Fluor Daniel Inc. · Philippines

• Developed project automation and inventory management utility programs using PHP.

Device-based Models with TensorFlow Lite

DeepLearning.AI

Convolutional Neural Networks in TensorFlow

DeepLearning.AI

Introduction to TensorFlow for AI, ML, and Deep Learning

DeepLearning.AI

Sun Java 5 Certified Programmer

Sun Microsystems

Certified Scrum Developer (CSD)

Scrum.org

Machine Learning Patent

Authored a patented ML solution detecting counterfeit products, filed with the European Patent Office.

Hackathon 1st Place

Won 1st place in a company-wide hackathon, showcasing mastery of machine learning technologies for developing object detection models and deploying to mobile phones for inference.