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Champer Wu

Mechanical and Mechatronic Engineering Bachelor’s Degree

New Taipei,Taiwan • +886988906482 •  [email protected]

Skill

Languages: TypeScript, Golang, Ruby 

Frameworks: ReactJS, Jest, ExpressJS, Ruby on Rails, GraphQL

Database & Message Queue: PostgreSQL, MySQL, RabbitMQ, Redis

DevOps: Cloudflare, Google Cloud Platform, DigitalOcean, Nginx

Tools: Retool, AppSmith

SUMMARY

  • Over 5 years of full-stack development experience, primarily focused on backend development, including designing scalable APIs, optimizing system performance. 
  • Experienced in integrating third-party APIs, especially those related to cash flow and financial services.
  •  Skilled in planning system architecture, deciding between monolithic or distributed systems based on project needs. 
  • Hands-on experience in interacting with and deploying funC smart contracts.

Soft Skills:

  • Strong communication and interpersonal skills, with a persuasive and sociable personality. 
  • Former physics teacher, adept at simplifying complex concepts and presenting them clearly to others. 
  • Proven experience as a startup entrepreneur, capable of balancing development and business needs, pitching ideas to venture capitalists, and identifying key negotiation points.

EXPERIENCE


TONX, Taipei — Full-Stack Developer, DevRel

March 2023 – February 2025

Developer:

  • Developed the backend for the Tonkey MultiSig Wallet to enhance the TON ecosystem, enabling clients to manage on-chain assets more securely and conveniently. 
  • Presented the ZK anonymous chat room at TON Hacker House as a contestant and won second place.
  • Researched RPC services and built high-level APIs for developers to interact with the TON blockchain, providing real-time access to blockchain data.
  • Developed event-driven solutions for TONX-related activities, allowing users to mint NFTs in under a minute with minimal interaction complexity.

DevRel:

  • Created sample code and documentation for developers to integrate TONX APIs seamlessly. • 
  • Contributed to the Ruby version of ton-core, offering integration support for Ruby developers. • 
  • Actively engaged with the TON community, addressing developer queries on smart contracts, wallets, Jettons, NFTs, RPC usage and Telegram mini app. • 
  • Assisted customers in resolving asset issues in MultiSig contracts caused by cold wallet and HD wallet compatibility problems with the Ed25519 algorithm. • 
  • Assisted TON Society in organizing and facilitating the TON HK Bootcamp. • Built dashboards using Retool and Metabase for business development teams to analyze estimated revenue and competitor API usage on the TON blockchain.

HOYA Exchange, Taipei — Backend Developer

September 2022 – December 2022

  •  Refactored services to improve the syncing of customer verification info with third-party bank systems, reducing the deposit and withdrawal process time to under 2 minutes.
  • Enhanced error logging by making error codes and messages clearer, significantly improving the debugging process.

ICS Gaming, Taipei — Full-Stack Developer

April 2021 – July 2022

  • Designed and implemented cash flow management applications, including both frontend and backend systems.
  • Focused on developing internal service APIs and refactoring code with functional programming principles to enhance robustness and scalability.
  • Integrated third-party APIs, primarily for financial transactions.
  • Established CI/CD pipelines and an ELK-based logging system to streamline deployments and error monitoring.
  • Reduced development time by leveraging third-party tools like Retool for quick dashboard creation and Hotjar for user behavior analysis.
  • Designed a real-time data synchronization center to keep local and third-party data aligned.
  • Simplified deployment processes using DroneCI, reducing deployment time by 30 minutes per iteration and minimizing human error risks.
  • Built a reliable web crawling system for data collection and ensured timely updates to the data center.

OWN Business, Remote — Full-Stack Developer & Founder

2017 – 2021

Self-employed developer:

Internal Management System for Massage Business

  • Engaged with clients to gather requirements and translate them into actionable development tasks.
  • Designed and developed a custom POS system with server-side components and mobile apps, integrating RFID technology to streamline operations and data analysis.
  • Achieved a monthly cost saving of over 150,000 NTD and simplified employee training through system automation.

Startup founder:

Electronic Nose System: 

  •  Led discussions with venture capitalists and organized technical summaries for pitching.
  • Developed a demo using Arduino to simulate scent transmission.
  • Managed a cross-functional team, including chemistry experts, for scent blending experiments.

Comparative Price System:

  • Built a web crawler and data pipeline for competitor price monitoring.
  • Integrated a chatbot (Line Bot) for real-time price notifications.
  • Prepared proposals and led discussions with potential investors.

PORTFOLIO

Tonkey

Projects 01 00@2x

  • multi-signature wallet designed to enhance asset security on the TON network.
  • Significantly reducing the chance of unauthorized access.
  • Currently (AUM) is over $500 million USD.

https://tonkey.app/

Internal Management System for Massage Business

  • Real-time session timing and tracking 
  • Customer data storage and search 
  • Transaction calculation and summary 
  • Staff check-in/check-out (attendance management) 
  • Automated salary and accounting summary 
  • Live synchronization of appointment data to the frontend display