Hoang Dang Tan Phat

Work

• Caliber Venture (member of KyberNetwork)

  2024-04 - present
  Software Engineer - Backend Lead
  • - 📌 Optimex (formerly Bitfi) - Decentralized Bitcoin Trading Platform (Node.js, Golang, React, PostgreSQL)
  • - Built Node.js/NestJS and Golang microservices with React frontend serving 2,000+ users, processing $4.9M+ trading volume across 2,247+ cross-chain transactions
  • - Designed cross-chain architecture handling 100+ daily transactions across Bitcoin, EVM, Solana
  • - Set up production infrastructure on AWS/GCP with ArgoCD achieving 99.5% uptime
  • - Integrated Morpho Protocol enabling DeFi lending/borrowing functionality
  • - Reduced API response times by 60% through Redis caching and query optimization
  • - Deployed blockchain validator nodes on GCP
• Caliber Venture (member of KyberNetwork)

  2023-08 - 2024-04
  Software Engineer
  • - 📌 Tobi - AI-Powered Web3 Telegram Mini App Wallet with MPC Technology (Node.js, Golang, React, PostgreSQL)
  • - Built Node.js/NestJS and Golang microservices with React Telegram Mini App, serving 8,000+ users
  • - Developed MPC wallet using Rust WASM handling 500+ daily wallet operations
  • - Integrated Kafka processing 5,000+ events/day with guaranteed delivery
  • - Implemented CDC (Debezium) reducing data sync latency to sub-second
  • - Built React-based Telegram Mini App with 3,000+ installs across all platforms
• OnPoint Ecommerce

  2020-08 - 2023-07
  Senior Software Engineer - Team Lead
  • - 📌 Opollo - SWAT 2 (CRM & E-commerce Platform)
  • - Led team of 8 developers delivering platform handling 50,000+ orders/month
  • - Integrated 3 payment gateways processing 20,000+ transactions/month
  • - Built warehouse sync with Box_me and TNC handling 100,000+ SKUs
  • - Designed event-driven microservices reducing deployment time by 50%
  • - Built promotion engine driving 15% increase in order conversion
  • - Established monitoring reducing incident response time by 70%
• OnPoint Ecommerce

  2021-01 - 2023-07
  Key Developer
  • - 📌 Hermes - Multi-channel Chat SaaS Platform
  • - Built platform handling 500,000+ messages/month across Lazada, Shopee, Facebook, Zalo
  • - Implemented gRPC reducing inter-service message sizes by 40%
  • - Designed Golang microservices achieving <100ms average response time
  • - Built NATS JetStream pipeline processing 20,000+ events/hour
  • - Developed Auto Reply system reducing customer response time by 60%
• NUS Technology

  2019-01 - 2020-07
  Team Lead
  • - 📌 Whalesave - Financial Management Platform (Node.js/Express, MongoDB)
  • - Led team of 5 developers through complete product lifecycle from 0 to launch
  • - Built Express.js backend with MongoDB handling 10K+ requests/day
  • - Integrated Stripe, Rapyd, PayPal processing 1,000+ payments/month
  • - Set up Docker Swarm reducing deployment time from 1 hour to 15 minutes
  • - Built ELK stack for centralized logging, reducing debug time by 50%
• NUS Technology

  2017-06 - 2020-07
  Software Engineer → Team Lead
  • - 📌 Welligence - Data Analytics Platform
  • - Led distributed team of 5 developers across Vietnam and US
  • - Optimized Sidekiq reducing job processing time by 40%, handling 10K+ jobs/day
  • - Implemented Elasticsearch indexing 500K+ records with sub-second search
  • - Built database sharding supporting 5x data growth without degradation
  • - Integrated Google Maps API serving 5K+ geolocation queries/month
  • - Managed AWS infrastructure (S3, EC2, RDS) serving 200+ enterprise users