Jun Boh

Senior Frontend / Full Stack Software Engineer

~$57MProcessed on launch week

15M+Sign-ups in 48 hours

8MDaily active users

$1.5MAnnual savings delivered

Meta (Manus AI)

Senior Frontend Software Engineer · Singapore

Feb 2026 — Present

Engineered the core frontend architecture for Manus's advanced AI agent platform, building complex, stateful user interfaces for real-time human-AI interaction using React and TypeScript
Developed the 'AI agent conversation' interface, implementing real-time streaming responses, context management, and interactive UI components enabling seamless multi-turn agent interactions
Architected and shipped critical product features including scheduled task management, dynamic navigation systems, settings dialogs, and document previewing capabilities
Built real-time collaboration and sharing features, enabling multi-user interaction with AI-generated artifacts and file actions across the platform

Instawork

Senior Full Stack Software Engineer · Singapore

Jul 2025 — Jan 2026

Delivered cross-platform features for partner web and Pro mobile (Hyperview) — messaging, AI-assisted shift booking, two-sided ratings, notifications — using React/TypeScript + Python Django
Extended Sendbird to auto-create multi-recruiter group channels; integrated messaging with AI booking bot to automate user booking flow
Built end-to-end post-gig ratings, boosting trial-shift rating completion by 20%; fixed a legacy N+1 path causing ~20s loads for large partners, cutting latency >90%

HoYoverse

Senior Frontend Software Engineer · Singapore / Shanghai

Jul 2022 — Jul 2025

Scaled account and payments frontends for 5 flagship titles (Genshin Impact, Honkai: Star Rail, etc.) across iOS, Android, PC, PS4/PS5, and Xbox
Delivered ultra-resilient auth flows handling ~15M sign-ups in 48h during launches, maintaining sub-second latency at global peak traffic
Built modular Vue JS + TypeScript UIs for web top-up and in-game cashier; integrated 50+ payment methods across 100+ countries; supporting ~8M DAU and ≈ SGD 5M in daily transactions
Partnered with BE/SRE to cut FE live-ops incidents by 30% and improve reliability
Keynote speaker at SINFO 2024 tech conference in Lisbon, Portugal

TikTok, ByteDance

Full Stack Software Engineer · Singapore

Jun 2021 — Jul 2022

Spearheaded GDPR/data-residency compliance for payments: rebuilt and localized merchant/advertiser and admin portals using React JS, Node JS (BFF), and Golang
Implemented global payments infrastructure improving regional reliability and enabling EU/US operations without cross-border data flow
Awarded the Employee Rockstar Award in 2021 and took part in the TikTok Employee Ambassador program

Bank of Singapore

Full Stack Software Engineer · Singapore

Jul 2019 — Apr 2021

Management Associate; CEO Recognition Award 2020. Engineered RM front-office app (React JS, Java Spring Boot, Kafka) replacing a manual Excel workbook, saving thousands of manhours monthly
Led 2 winning Innovation Challenge products; launched RM pitch tool saving 3,680 hours globally, delivering $1.5m/annum in savings
Prototyped a genetic-algorithm portfolio optimizer in Python which led to the formation of an in-house roboadvisory team

DBS Bank

Data Scientist · Singapore

Aug 2018 — Dec 2018

Network analysis of ~6m client relationships via graph theory; data mining and dashboard visualisations driving sales by at least 150%

TypeScriptJavaScriptPythonGolangJavaSQLHTML/CSSC#ReactVue.jsNode.jsDjangoSpring BootTailwind CSSFramer MotionNext.jsGitDockerCI/CDWebpack/ViteKafkaShellAI Agent InterfacesPayment SystemsHigh-Traffic ArchitectureGDPR ComplianceReal-time Collaboration