- VPN service• First version was PPTP one click EIP changes on AWS• Managing 10+ nodes by ansible playbook• Packaging v2ray, Shadowsocks and wareguard into docker• Selling Asus routers by flushing them into Openwrt, DDwrt and Merlin• Selling by salesperson, Facebook page and Google SEO/SEM• Contact customers for support and maintenance - Web site of SME Financial company• Tuning a slow drupal web site to have a load speed < 1s• Fixing instability of site - Entertainment platform... and more

• Creating solutions and approach for CEO’s business directions• Leading team for development in parallel• Providing technical details for marketing and sales• Hiring technical staffs• Handling projects for delivery of development, maintenance, support, backup and enhancement• Applying programs and partnerships from AWS/Azure/Drupal for funding programs or cost reduction• Projects within company: - USDT arbitrage• By regression and other mathematical approach to find volatility of gap between USDT and USD• Use reactjs and websocket from python to display results• Project still in progress, constructing automatic trading hint - FIX arbitrage• Developing python and C++ application to conduct triangular arbitrage• Implementing Bellman Ford and dijkstra's algorithm for calculation of shortage path - Crypto Currency• Launching self cryptocurrency and blockchain• Compiling own mining process• Developing application on encrypted USB drive by electron and Nodejs• Proof of Reputation - own version of Proof of Work• Tensorflow AI model training to proves usage of POR• Auto-Price maintenance application of cryptocurrency EUBC on hotbit.io• Running all systems on Azure - High School Account• Introduce CICD workflow to whole architecture• Launching HA architecture by AWS EC2 autoscaling• Application tuning• Leading team for delivery of functions and SLA 99.999%• Automated backup workflow• Ansible Tower for GUI click deployment• Apache solr for search engine• Build and upgrade docker images for dev and prod use• Managing 3rd party services and application like Google Analytics, dotcom-monitor, Newrelic, Mailchimp, Zammad

• Building an auto-deployment PaaS to one click deploy an auto-scaling web architecture for Drupal• AWS Cloudformation deployment for EC2, RDS, S3, Cloudwatch, ECS, Route 53, SNS, Elasticache, Cloudfront to all available region. Running Nginx+php-fpm, GlusterFS, apache solr automatically on AWS ec2 by chef client roles• eventually uses chef to control dockers on chef clients

• Design and implement application workflow of auto-deployment tool of commercial version of Apache Kylin on Azure and AWS • Using Hadoop for MapReduce on AWS EMR and Azure HDInsight as base of Apache Kylin’s commercial version• To build a PaaS that make use of infrastructure as code, by AWS Cloudformation API, Azure ARM and Chef DevOps technology• Working as a presale to construct POC for clients• Loading streaming data from Kafka into Kylin for OLAP• Using Tableau, Talend, Pentaho and etc BI tools to form reports for POC• Using Jenkins for build and deployment• Serving all packages and images internally by Yum, Maven, Git and Docker.

• Combining AWS EC2, RDS, S3, Cloudwatch, ECS, Route 53, SNS, Elasticache to serve applications• Implement CICD workflow to all architectures• Design and enhance application and system architecture of frontline stores and backend servers• Design, POC and development of new reporting system by combining use of BI tools, PostgreSQL, Apache kylin(OLAP) and Laravel as frontend• Updating architecture to make all applications HA with SLA 99.999% (< 1 hr downtime in a yr) • Serving all packages and images internally by Yum, Maven, Git and Docker.• Self-building docker images for development and production use

• Implementing and supporting auto-scaling architecture on Amazon Web Service through AWS Cloudformation, AWS EC2, ELB (Elastic load balancer)• Applying infrastructure as code through DevOps tool Chef for auto-scaling nodes for HA.• Perform system and web server tuning for launching Drupal web site.• Maintaining 20+ website on Drupal 7 and Drupal 8• Using apache solr as backend search engine, config facet• Using ansible playbook for fast deployment• Writing drupal modules for backend function• Sometime modify frontend JS and CSS• Using Drupal 8 for headless backend server and Angular JS as frontend• Dynamic CDN by AWS Cloudfront

• Handled support projects that with certain scale with high diversity. Including Oracle RDBMS, Oracle DataGuard, HP Sitevisit monitoring system.• Built an auto-reporting system for database monthly statistic by Drupal.• Gained experience and technique on how to manage and dealing with customers to fulfil their needs and manager’s expectation. Learnt the importance of teamwork.

• Configure and install IBM P series machines from scratch, including VIO, NIM, AIX 5.3, 6.1, 7.1 and HACMP. Patching, maintenance and customization are performed. • AIX and SQL Scripting for operator menu to run batch job for backup of system image, RMAN(recovery manager) script to backup and housekeep Oracle Database and archive logs, performance monitoring of system and create transaction report from Oracle Database. • Configure Oracle single instance Database or RAC, Dataguard from scratch. Performed script monitoring, trouble shooting, implementation, maintenance and administration on Database. Oracle Certificate Professional is obtained.• implement and deliver IT projects that require software and system knowledge such as EMC storage, Red hat Linux, Fax Server, SMTP server and etc• Hands on experience of ITIL Project Management, Project documentation processes are obtained. • Handled projects that with certain scale with  high diversity.• Gained experience and technique on how to manage and dealing with customers to fulfil their needs and manager’s expectation. Learnt the importance of teamwork.

• Worked in the service team to handle customers’ tender.• Managing IBM P series machine PowerVM technology. Completed a project to migrate TWS 8.3 from Win OS to AIX 5.3 which is now in production environment. Testing environment has been built on OpenSUSE 11’s KVM by deploying TWS on Window 2008 cluster and RedHat Linux. Gained management experience on DB2 and Java application.

• Worked in the Enterprise Service Business Unit of HP to administrate daily operational system problems that the customers encountered.• Gained knowledge in databases such as Oracle, SQL and Sybase. A graduation program of HP that provided different kind of training for improving candidates' interpersonal skills, presentation skills, self-management and etc. I was selected to be the MC of annual dinner.