Experience

A career built around ownership, product delivery, and scalable systems.

Rizal has worked across remote product teams, learning platforms, sustainability projects, and internal business systems.

February 2026 - Present Singapore / Remote

Principal Engineer

CHANGEMAKR ASIA

  • Lead technical direction and architecture for scalable web and mobile applications in a remote, async-first environment.
  • Drive end-to-end development while improving performance, maintainability, and user experience quality.
  • Collaborate across teams and improve engineering efficiency through best practices, internal tools, and clear documentation.
ArchitectureFull-stackMobileRemote Collaboration
October 2025 - Present Tangerang, Indonesia

Full-Stack Developer

PT Netpolitan Cipta Cakrabuana

  • Led end-to-end development of AI-powered LMS features across web and mobile applications.
  • Designed and implemented system prompts for consistent, context-aware AI agent behavior.
  • Integrated LLM APIs and function calling to enable intelligent automation and conversational experiences.
OpenAILLM APIsLMSBackend ServicesMobile
August 2025 - January 2026 Singapore / Remote

Full Stack Engineer

CHANGEMAKR ASIA

  • Built and maintained scalable web applications across frontend and backend systems.
  • Delivered product features aligned with requirements while optimizing performance and reliability.
FrontendBackendAPIsPerformance
May 2025 - August 2025 Singapore / Remote

Frontend Engineer

CHANGEMAKR ASIA

  • Developed responsive, user-friendly interfaces with consistent UI and UX across platforms.
  • Collaborated with backend teams to integrate APIs and improve the overall user experience.
FrontendUI EngineeringAPI Integration
February 2022 - July 2025 Jakarta, Indonesia

Application Developer

PT TELEXINDO BIZMART

  • Developed and maintained scalable web and mobile applications.
  • Collaborated with cross-functional teams to ensure consistent UI and UX.
  • Optimized performance, improved application reliability, and contributed to internal tooling and documentation.
PHPMobile AppsWeb AppsInternal Tools