Joe Lin
Hands-on experience in performance, high availability, scalability, system architecture, system management, networking, troubleshooting and skilled in automated operations, OAM analytics and capacity planning activities across an entire infrastructure stack with multiple server components.
Deployed and managed large-scale backend services in AWS for global project and coordinate the team based in US, China.
Experienced in mentoring junior system engineers and guide team members in troubleshooting, define SOP and to make things easily-maintained and reuseful.
- Strong understanding of Linux, common network services, and AWS.
- Quick learner and self motivated problem solver.
- Porctive worker and willing to share my knowledge and experience.
Taipei，TW
Education
National Taipei University of Nursing and Health Sciences
Taipei, Taiwan, Sep 2005 to Jun 2008
B.S, Information Management
National Taipei University of Business (junior college of five-year program)
Taipei, Taiwan, Sep 1999 to Jun 2005
Diploma, Information Management
Technology Stack
DevOps
- AWS, GCP, Aliyun, Tencent
- Linux
- Network
- Security
- Automation (ansible, chef)
- Git, Jenkins, Gerrit, Azure DevOps
- Docker, docker-compose
- Terraform, Packer
- Kubernetes, Istio, EKS
Database
- MySQL
performance tuning, HA solution, store procedure and monitoring. - Cassandra
performance tuning, management, monitoring and understood the major concepts. - Oracle
- Redis
- MongoDB
Others
- CDN (Akamai, AWS, Cloudflare)
- Nginx + Lua, Apache, Tomcat
- Activemq, Kafka
- Grafana, Prometheus
- ELK, Graylog2
- Hadoop and Spark
- Cacti, Nagios and Zabbix, 24x7
- Scripting (Shell, Python, Java)
- OpenSIPs
- VOIP
Experience
Experience from 2021 Jan. to present | Cloud Architecture - Inno Technology limited.
- Lead 10 team members comprehensively to solve technical issues that would be a showstopper and improve the architecture to deliver projects with high quality.
- Mentored 11 team members including DBA that why and how to follow the best practice, operation guide line (do's and Dont's) to increase the productivity.
- End to end troubleshooting the dangling problems and shared the experience to stakeholders.
- Support RD team to implement spring actuator and thread dump to figure out the issues deeply.
- Implemented nginx proxy by config generation, modulize, and parameterize to guarantee thousand of virtual hosts have consistent config and can reuse in every environment.
- Appropriately tuning nginx proxy to improve backend and frontend performance by adjusting os, connetion, cache ..etc.
- Improved the JAVA build process from complex hardcoded shell scripting to well structured shell scripting with multi-stage docker build.
- Solved the frontend content auto dev deployment issue when high frequency merge request caused parallel cd pipeline requests.
- Designed and implemented the networking solution specific for China users to have good online service use experience and easily change content and API networking by backend setting.
Experience from 2020 Aug. to Jan. | DevOps Manager - Production Technology limited.
- Participated in project for architecture review, deployment and SRA (Security Risk Assessment).
- Automated CI/CD and task process by Jenkins
- lead and mentored the members in DevOps Scope.
- Handled the projects using spring cloud and k8s on Aliyun cloud.
Experience from 2019 Mar. to 2020 Jun. | Principle Engineer - HTC Viveport OPS team
- Participated in project for architecture review, deployment and SRA (Security Risk Assessment).
- Build up project infra using Terraform on AWS.
- Maintained service gateway (Nginx) when new service launches or service changes.
- Service deployment by auto-scaling with docker-compose or K8S.
- Troubleshooting by ELK stack, Grafana, AWS Cloudwatch, real time traffic analyzing and Linux debug tools.
- Regularly supported DRP (Disaster Recovery Plan) and whether RTO and RPO is satisfied.
- Service and system alarm notification by 24x7 , Cloudwatch, Elastic Alert and receiving by Email, SMS, Slack or MS Teams.
- Regularly reviewed cost and survey solutions that can optimize cost and avoid the changes to affect service.
- Implemented AWS Direct Connection Gateway on AWS Global and AWS China to improve network latency and stability.
- Implemented AWS Transit Gateway with IT team to facilitate IT team to manage worldwide routing.
- Automated CI/CD and task process by Jenkins or Azure Devops Pipeline.
- Regularly replaced new Image which was rebuild with the latest OS patch and OS hardening.
- Reviewed and executed DB operations and migration script for RD team.
Experience from 2018 Aug. to 2019 Mar. | Sr. DevOps Engineer - Intouch Games
- Organize and build up the company IT infrastructure.
- Improved the deployment architecture with scalability and better performance.
- Lead service benchmark and figured out performance issue.
- Implemented vagrant and cloudformation to reduce the cost of deployment.
- Implemented monitoring and log analyzer for project and office IT.
- Wrote plan, defined work breakdown, oversaw system integration, tracked schedules, and led system architecture review.
Experience from 2013 to 2018 | System Engineer - Truetel
- Participated in most projects as a consultant, conducted system performance, availability review and directly reported to CEO/CTO.
- Build and managed a 10000+ users service architecture using 10+ services.
- Served as an AWS/IT/Monitoring consultant to support China team managing a image build and delivery system in AWS.
- Served as an IT/Monitoring/Service Administrator in a global service to delivery an AWS backend for Android tablets to collect the app usage data and the operational support data with no downtime for 18 months and it supported multiple site deployment, and site failover/recovery.
- Build and managed a backend system for a face recognition mobile messaging app in AWS and worked with teams located in both US and Taiwan, this backend system was designed to guarantee million concurrent users with high performance, high availability and scalability.
- Integrated OAM scripts with reusable and maintainability and reduced the cost of building OAM for new project.
- Planed and led 3 engineers to implement office IT organization and integration with improved structure and reduced accidents so that team members can focus on projects and tech skills and made company work more efficiently.
- Implemented Graylog for log collection and analysis.
- Wrote plan, defined work breakdown, oversaw system integration, tracked schedules, and led system architecture review.
Experience from 2009 to 2013 | System Engineer - Soundyes
- Led 1 engineer to maintain 50+ servers in two data centers and several projects and worked in different roles.
- Designed and implemented OpenSIPs into our VOIP solution.
- Designed and implemented service analytics report by MySQL stored procedure.
- implemented Project Management Software "Redmine" and trained our employees to use it.
- implemented Cacti to monitor system and services.
- Reorganized IT deployment and continuously
- Planed and wrote testcase and took step to do it and actually increased service reliability and availability in our production.
