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Tang Yetong

Full stack developer that dabbles in data analytics.

Senior engineer at RFCOM. Previously built scalable pipelines at Fivetran, digital services at GovTech, and contributed to the Bitcoin ecosystem.

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More about me
Tang Yetong standing by a turquoise lake in the Canadian Rockies
  1. Jun 2026 – NowWork
    Senior EngineerRFCOM TechnologiesMobile apps and payment systems that hotels and their guests use every day.
  2. Sep 2024 – Jul 2025Work
    Data Analyst InternFivetranPipelines and analytics for enterprise clients.
    • Built scalable data pipelines for enterprise clients
    • Optimized data processing workflows
    • Developed analytics dashboards and reports
  3. 2022 – 2026Education
    Computer ScienceNational University of SingaporeSoftware engineering, algorithms and systems.
    • Focus on software engineering, data structures, algorithms and system design
    • Active member of the NUS Hackers community
  4. May – Aug 2022 & 2023Work
    Software Engineer InternGovTech SingaporeCitizen-facing apps and cloud work on AWS.
    • Built citizen-facing applications
    • Implemented cloud solutions on AWS
    • Handled data collection and analytics for Key Results
  5. Jun – Aug 2022Programme
    Summer of Bitcoin InternBitcoin Dev KitBDK-Kotlin and the Padawan testnet wallet.
    • Contributed to Bitcoin development projects and wallet applications
    • Wrote a series of BDK-Kotlin how-to guides on this blog
  6. 2018 & Apr – Dec 2022Work
    Android DeveloperRFCOM TechnologiesBluetooth LE apps and secure payments for the hospitality industry.
    • Developed Android apps with Bluetooth LE integration
    • Created enterprise solutions for the hospitality sector
    • Implemented secure payment processing systems
  7. Jan – Mar 2020Work
    Software Engineer InternTravel PrologueWebsite fixes and SQL work for a travel booking site.
    • Resolved bugs and added features to existing website infrastructure
    • Assisted in SQL database population and system design for public-facing applications
  8. 2013 – 2019Education
    Secondary SchoolNUS High School of Mathematics and ScienceSpecialised school focused on mathematics and science.

Blog

Writing on Bitcoin wallets, Android and what an internship is actually like.

homelab14 minJellyfin: Avoiding subscriptions like the plagueHow I set up an arr stack (Jellyfin, Radarr, Sonarr, Prowlarr and qBittorrent) with Docker Compose on a Raspberry Pi 5 8GB and a 1TB external hard drive.2026-10-29academic1 minCS2103 Individual ProjectQuick page to find Github Page for CS2103 individual project segment.2024-02-17mobile3 minRender Error: Cannot read property 'createClient' of nullFaced some issues tinkering with React Native's BLE library and trying to get it to work.2023-11-05blockchain5 minHow to contribute to Padawan WalletA quick summary of what the Padawan Wallet is, why it exists and how you can contribute to it!2022-08-30blockchain8 minSummer of Bitcoin 2022This is the last week of the Summer of Bitcoin (SoB) 2022 internship and what a journey it has been.2022-08-17career10 minEverything about my Internship at GovTech 2022 SummerEverything about my 3 month internship at GovTech 2022 May - July.2022-08-02

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Off the clock

A few things I enjoy away from the keyboard.

Made in Abyss posterQuan Zhi Gao Shou posterBleach posterGrand Blue Dreaming posterCall of the Night poster
Main race

Terran

StarCraft II

Top five anime · Made in Abyss, Quan Zhi Gao Shou, Bleach, Grand Blue Dreaming, Call of the Night

Rank the posters, pop a bubble, train a marine

Say