Mark Yu Min Su

BitoEX is a blockchain and cryptocurrency startup providing exchange and remittance services to cryptocurrency users. BitoEX, launched in 2014, have an 80% market share in Taiwan and 300,000 members. BitoEX offers buying and spending bitcoins at more than 3,000 Family Mart convenience stores, as well as an online exchange platform. The company raised USD $20 million in an initial coin offering (ICO) in May 2018, which would be used to expand its digital asset exchange, BitoPro, internationally, with a target on India, Singapore, Malaysia, the Philippines, and Japan. BitoPro plans to rollout crypto-to-crypto, fiat-to-crypto, and margin trading services in the future. The company is working on building up the cryptocurrency ecosystem and connecting local financial services. Experience: - launched and conducted BitoPro Cryptocurrency Exchange ICO, which sold more than USD $20 million worth of BitoPro BITO tokens in May 2018 - BitoPro Cryptocurrency Exchange 24-hour trading volume up to USD $10 million and membership exceeded 300,000 in 2019 - designing low latency and high throughput matching engine for extreme transaction processing - architecting a highly secure, reliable and scalable trading platform by applying the microservice pattern that supports multiple cryptocurrency wallets (BTC, ETH, USDT...etc) - architecting services based on blockchain technology(e.g., recording supply chain transactions among multiple parties on the Ethereum blockchain) Skill: Golang, gRPC, Kafka, Amazon Aurora, Redis, SSDB, Kubernetes, Prometheus, ELK, OWASP(Open Web Application Security Project), DevSecOps, Solidity, RAFT(consensus algorithm)

21Vianet Group, Inc. is a leading carrier-neutral internet data center services provider in China. 21Vianet provides hosting and related services, managed network services, cloud services, content delivery network services, last-mile wired broadband services and business VPN services. 21Vianet operates in more than 30 cities throughout China, servicing a diversified and loyal base of more than 2,000 hosting enterprise customers that span numerous industries ranging from internet companies to government entities and blue-chip enterprises to small- to mid-sized enterprises. Experience: - Providing a global identity infrastructure that supports self-sovereign identity and verifiable claims based on the Ethereum blockchain for the IDHub project. - Providing attestation service(e.g., Notary, proof of existence) based on the Bitcoin blockchain for the People's Bank of China Banknote project. - Participate in planning, definition, and high-level design of the Pallium project. The Pallium is a smart contract execution platform that supports multiple programming languages (C, C++, Java, Python, etc) to describe the contracts on multiple device platforms through LLVM bitcode execution or WebAssembly support in all major browsers and serialization over all kinds of blockchains (Bitcoin, Litecoin, Ethereum, etc.) Skill: C/C++, JSON-RPC, Solidity, Node.js/Web3.js, Emscripten, WebAssembly, Golang, Bitcoin Core, Go Ethereum, Hyperledger Fabric, Dash, Uport, Sovrin Honor & Award: 第二届中国区块链技术创新应用大赛初赛(北京賽區)第一名 http://www.jinse.com/news/blockchain/84141.html Reference: IDHub http://idhub.network/

Migme Limited is a global digital media company focused on emerging markets delivering social entertainment services in Southeast Asia, South Asia, the Middle East and Africa. As a director of the engineering department, I was responsible for providing chat, microblogging, notification, virtual gifting, content and online gaming services for more than 30+ Million monthly active users(MAU). Experience: - Establish the company’s technical vision and leads all aspects of the company’s technological development. - Re-architecting the whole backend system in highly available distributed microservice architecture for more than 10+ Million API calls daily and dockerized running in AWS cloud environments. - Refactoring the chat services as a highly concurrent, distributed, and resilient message-driven cluster system with implemented WebSocket gateway support for the private chat, group chat and chatroom service. - Revamp the notification and gamification service as a distributed streaming data pipelines platform which handles more than 50 Million daily user events and delivery to email, short message service (SMS) and mobile push notifications service( Android GCM and iOS APN) - Redesign the dynamic news/activity feed graph algorithm for microblogging service and personalization/recommendation engine - Continuous integration (CI) and continuous delivery/deployment (CD) with Jenkins2, Docker, Apache Mesos, Mesosphere DC/OS. Skill: Java, Scala, Akka, Play Framework, Cassandra, Kafka, Spark, Redis Cluster, Couchbase, Elasticsearch, Reactive Streams, Natty, Google Protocol Buffers, Nginx, Docker, Apache Mesos, Mesospheres DC/OS, Jenkins2, Logstash, Grafana, AWS Honor & Award: "Migme secures the Ionic App Labs development team", Australian Securities Exchange, ASX Release, 5 November 2015 SMACK@Taiwan https://www.facebook.com/groups/1924620941097043/ Serverless User Group Taiwan https://www.facebook.com/groups/1879067838998302/

Introduction: We are a small expert team to build progressive web apps and cross-platform mobile apps with HTML5, CSS and Ionic Framework.(e.g. Android/iOS) And also we are familiar with full-stack Javascript for the frontend to backend rapid development by adopting AngularJS, Socket.io, Express, Node.js, StrongLoop, MongoDB, and Redis. Now we are building a platform for team communication: everything in one place, instantly searchable, available wherever you go.(e.g. Slack / HipChat ) Skill: HTML5, JavaScript, AngularJS, Express, StrongLoop, Socket.io, Node.js, MongoDB, Redis, Cordava/PhoneGap, WebSocket/WebRTC, PhoneRTC, Android SDK, iOS SDK(Objectiv-C/Swift), Nginx Ionic App Labs: http://ionicapplabs.github.io/ https://www.facebook.com/groups/ionicapplabs Mobile app reference: 1.MailCloud Messenger - http://mm.mailcloud.tw/index.html - https://itunes.apple.com/tw/app/mailcloud-messenger/id1045441241 - https://play.google.com/store/apps/details?id=com.openfind.MailCloudMessenger 2.Business Sales Kit / Product Category App (Renesas Electronics Japan) - https://itunes.apple.com/gb/app/mcu-selector/id691068491 - https://play.google.com/store/apps/details?id=eu.renesas.mcu_selector 3.Medical Treatment / Healthcare App (Taiwan) Honors & Awards: 1. "Migme secures the Ionic App Labs development team"​, Australian Securities Exchange, ASX Release, 5 November 2015, https://www.irw-press.com/en/news/migme-secures-the-ionic-app-labs-development-team_27308.html?isin=AU000000MIG8 2. “Building Hybrid Mobile Apps with Ionic Framework and AngularJS”, Ionic App Labs, Speaker of JSDC 2015, JavaScript Developers Conference, 4 October 2015, http://2015.jsdc.tw/en/schedule.html

As a senior software engineering manager, I was responsible for leading R&D department (about 20 engineers) to build cloud-based online English language learning platform. Experience: • Built online cloud-based English language learning platform(e.g. listening, reading and writing skill) for Cambridge English exam and qualification, including practice, exam, simulation, analysis system. • Built billing system and integrated with Alipay online payment service for English language learning platform. • Adopt Groovy/Grails for Rapid web development and MongoDB Sharding for multimedia streaming. Skill: HTML5, JavaScript, JQuery, jQuery Mobile, Groovy, Grails, MongoDB, Tomcat, Nginx, Android SDK, iOS SDK

As a software engineering manager and leading research and development division(about 30 engineers), I was responsible for strategy, planning, development, implementation and operations of the company’s global IT infrastructure and applications. Experience: • Built Foxconn Enterprise Secure Cloud Mail Service by Linux open source integration on 400+ virtual machines and which serve more than 100,000+ employees daily at offices in China, India USA, and Brazil, etc.(2011-2012)(Project ROI 30 Million RMB) • Tailored and ported Android 2.0 platform for Pandigital Novel Color Multimedia e-Reader Tablet with Integrated Adobe Reader Mobile SDK and B&N NOOK SDK libraries and which in mass production for more then 300,000+ pieces in US market.(2009-2010)(Project Revenue 45 Million USD) • Created proprietary e-reader framework base on Android platform architecture for reader, library and bookstore related applications and also enhanced the Android UI for better user experience. Skill: Java, JSP, Spring, Hibernate, MySQL, Tomcat, Apache, Postfix/Dovecot, LVS, Ubuntu, VMware, Android SDK, Android NDK Honors & Awards: "Pandigital Novel review", Engadget, 20 Auguest 2010, https://www.engadget.com/2010/08/20/pandigital-novel-review/

As an Independent software engineering consultant, I was responsible for provided consulting service for building high scalable web 2.0 applications and web services. Experience: • web 2.0 application for mobile LBS(location-based service) by requesting the nearest business or service on Android platform, such as an ATM or restaurant. • web sites and web services for community education and entertainment of Taipei Intelligent Community project. Skill: Java, JSP, Spring, Hibernate, MySQL, Tomcat, Apache

Polar Tech is the leading CMMI consulting service company in Taiwan. As a software process consultant, I was responsible to help organizations to build the executive sponsorship and organizational infrastructure needed to successfully adopt and use CMMI. Experience: • Provided CMMI consulting and assessment to organizations with the effective processes in software product and service development. • Coordinated DTC Cortex Consulting Co., Ltd to adopt and appraised CMMI maturity level 2. Skill: Software Process Improvement, Project Management, Communication Skill, Writing Skill, Thinking Skill, Problem Solving Skill

Foxconn Technology Group is the world's largest multinational electronics contract manufacturer. As a software architect and supervisor, I was responsible for provided B2Bi, PLM solutions and process improvement for wireless business group in Foxconn. Experiences: • Implemented Capability Maturity Model(CMM) Level 3 in software development division of wireless business group. • Implemented Nokia and Motorola Product Data Management (PDM) and Product Lifecycle Management (PLM) system. • Implemented Foxconn Mobile Phone Tooling Design PDM system. • Implemented Intel and Dell Business-to-Business integration (B2Bi) system for RosettaNet PIP 3A4/3A7(Purchase Order) and 3C3/3C4(Invoice). Skill: Java, JSP, Struts, Oracle, MySQL, Tomcat, Apache, WebMehods, SAP, PTC IntraLink/PDMLink/PLMLink

ECnet is a Singapore based enterprise supply chain management solution company with customers in Consumer Electronics, Manufacturing, Automobile, Healthcare and Logistics. As a software engineer, I was responsible for implemented collaborative supply chain management solutions and enterprise system Integration. Experiences: • Designed and implemented Taiwan Semiconductor Manufacturing Company(TSMC) Purchase Order management system and vendor management system. • Designed and implemented APPLE Singapore delivery forecast management system. Skill: Java, JSP, Oracle, Netscape Application Server

Under government-funded projects, Java center of III is in charge of developing advanced Java technology for Taiwan local industries. As a software engineer, I was responsible for implemented Java technology in a wide range of competitive applications on the Embedded platform. Experience: • Designed and implemented Java mobile web bookstore application for WAP mobile phones. • Designed and implemented distributed Java Jini services and Jini client application for home Information Appliance (IA) system. • Designed and implemented Java smart card applet and smart card reader client application for e-ID and e-purse. Skill: Java, JNI, Java Card, Java Virtual Machine, JINI, JSP, WAP/WML, Tomcat, Apache