Yan Christofer (閻) Silalahi

Data Science Platform @GoTo | Prev Traveloka ᯓ✈︎ & Start-Ups | CS @University of Indonesia

South Jakarta, Jakarta, Indonesia

About

Learner and builder. My interest in information and technology development brought me to University of Indonesia, where I am learning Computer Science.

Experience

  • Associate Software Engineer - Data Science Platform at GoPay Indonesia
    Apr 2025 - Present · 1 yr 8 mos

  • Technical Product Manager - Flight at Traveloka
    Sep 2024 - Mar 2025 · 7 mos

    Specialized in optimizing flight booking systems through aggregator integrations, while contributing to broader system enhancements and cross-team initiatives. Focused on improving booking health, system automation, and operational workflows to drive measurable business outcomes. 🛫 Eliminated Price Discrepancy: Reduced price discrepancies during booking and issuance, achieving $22k USD savings per month by creating a measured price tracking system and refactoring API flows. Increased daily price accuracy from below 75% to over 94% by implementing new API capabilities and enhancing caching for a specific airline system. 🛫 Led Aggregator Onboarding Projects: Successfully owned and managed the end-to-end integration and onboarding process for aggregators in Hong Kong and Mainland China. Led early discussion meetings, oversaw development phases, supervised operations, and provided strategic advice to both aggregator systems and Traveloka’s business team, resulting in millions of USD added to average daily aggregator issuances. 🛫 Increased Team Efficiency: Improved team efficiency by more than 50% for general investigative tasks through a self-initiated automation script and workflow, developed independently within my first two weeks of internship. This solution was recognized by managers and adopted by other product teams. 🛫 Enhanced Booking Health: Achieved a 30% improvement in overall aggregators booking health by initiating accurate error mapping, introducing a standardized approach to aggregator APIs, and advocating best practices with aggregator tech and product teams. 🛫 Improved System Health: Reduced manual issuance by 40% through close collaboration with the team, proactive issue identification, preemptive utilization, and automation efforts.

  • Axcel Partners (11 mos)
    • Full Stack Engineer
      Feb 2024 - Jun 2024 · 5 mos

      Mobile Development - Gamification Clients: Health and Beauty Sector

    • Full Stack Engineer Intern
      Aug 2023 - Jan 2024 · 6 mos

  • Faculty Tutor & Cyber Security Junior Researcher at Faculty of Computer Science, Universitas Indonesia
    Jun 2023 - Jun 2024 · 1 yr 1 mo

    🎓 AI/ML on Cyber Security Researcher [Aug 2024 - Now] 🎓 Tutor For Foundational Programming II [Feb 2024 - June 2024] 🎓 Tutor For Data Structures and Algorithms [Sep 2023 - Feb 2024] 🎓 Data Structures and Algorithms Lab Assistant [Aug 2023 - Feb 2024] 🎓 Java Programming Lab Assistant - Foundational Programming II [June 2023 - Aug 2024]

  • Software Engineer Intern at ASYX
    Apr 2023 - Aug 2023 · 5 mos