Software Developer, Dancer, and Lifelong Learner.

I'm Zell (Feng Long), a software developer based in Singapore who believes in constant learning and growth. My journey has been marked by a focus on application development, all the while exploring the endless possibilities that new technology brings. Beyond my professional work, I find joy in street dance, problem-solving, and the essence of computer science theory intrigues me.

  • Zell holding a cat
  • Zell doing a breakdance freeze in a plaza
  • Zell looking out over a city
  • Zell in front of a Google mural
  • Zell on a viewing deck overlooking green hills

What I'm building

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Fallow

Since 2026Active

A Chrome extension that frees up memory from idle tabs without closing them.

Tabs stay in place and reload when revisited, with manual and automatic unloading, a searchable dashboard and an activity log. All data stays on the device.

  • TypeScript
  • React
  • Chrome Extension
Fallow screenshot

Recent writing

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Scaling Isn’t Free: The Hidden Cost of Coordination

Exploring the tradeoffs of scaling systems, covering sharding, scatter-gather patterns, and serverless, with practical insights into latency, reliability, and coordination costs.

  • Distributed Systems
  • System Design

Work

  1. Traveloka

    • Software Engineer (Backend)Jul 2025 – Present
  2. Accenture

    • Lead Software Developer / Software Engineering SpecialistJun 2024 – Jul 2025
    • Senior Software Developer / Business Arch Senior AnalystJun 2022 – May 2024
    • Software Developer / Business Arch AnalystJan 2021 – May 2022
  3. National University of Singapore

    • Teaching AssistantAug 2020 – Dec 2020
  4. GIC

    • Full-Stack Software EngineerJan 2020 – Jun 2020

Education

  1. Nanyang Polytechnic

    • Specialist Diploma in Applied Artificial IntelligenceApr 2024 – Mar 2025
  2. National University of Singapore

    • Bachelor of Computing / Majoring in Information SystemsAug 2017 – Dec 2020
  3. Nanyang Polytechnic

    • Diploma in Business InformaticsApr 2012 – Mar 2015