Dat Tang Email & Phone Number

Germany

- Developed internal Kubernetes pod autoscaler for Kubernetes clusters written in Golang, aimed at high efficiency, reliability and resiliency while meeting business-specific requirements for handling sudden influx of traffic requests.- Held complete ownership of Shopify's worldwide core infrastructure of Kubernetes clusters (~15000 VMs on GCP), including managing control plane and nodepools upgrades to the latest Kubernetes versions on a consistent basis, enabling seamless planetary infrastructure.- Joined initiatives to optimize core software deployments for continuous delivery, resulting in significant improvements in efficiency and resilience.- Played a key role in capacity planning and delivery of Shopify's core infrastructure, contributing to the company's most successful Black Friday/Cyber Monday event to date.

Düsseldorf, North Rhine-Westphalia, Germany

- Managed 20 Kubernetes clusters across three continents, hosting conversational AI product on 300 virtual machines on AWS and Azure- Increased platform health indicators by 100% and reduced incidents by 40% in last quarter. Improved platform reliability with Infrastructure as Code, monitoring, and SLA awareness- Achieved near-zero-downtime migration of 3 TB of MongoDB data to multi-node replica sets on Kubernetes- Developed Helm chart for simplified product installation- Automated CD pipeline for seamless rollout of new versions, resulting in no night shift for SRE team- Led formation of SRE team with Scrum framework and coached them in Terraform, Kubernetes, Helm, and other cloud-native technologies- Consulted with customers on SaaS and on-premise cluster management and acted as internal consultant for development teams on cloud-native tools.

Cologne, North Rhine-Westphalia, Germany

- Designed, implemented and maintained platforms of various products, including a mobile app (React Native), websites (Wordpress), and backend systems (NodeJS, AWS)- Developed Lambda functions to perform platform tasks, using NodeJS and Typescript - Introduced and managed platform reliability awareness topics , including Infrastructure-as-Code, disaster recovery, monitoring, configuration management and service level agreement (SLA).- Consulted and supported developers to utilize the platform, apply the best practices and troubleshoot errors.- Collaborated with the team to develop the mobile app from the development to the soft-release phase

Germany

- Designed and implemented solutions for customers to transform to public clouds (AWS, Azure) - Consulted customers by adapting their IT landscape to a modern microservices architecture, as well as applying DevOps and Scrum principles and cultures- Improved and extended the platform capability to speed up the SDLC and help developers improving quality of products- Built, automated and operated cloud platforms: both on-premises (OpenNebula, vSphere, vCloud) and public cloud (AWS, Azure)- Developed containerized platforms with Docker, Kubernetes, Helm, EKS and Rancher; extended the platform with Operators written in Go- Infrastructure as Code using Terraform as well as dynamic provisioning using Ansible- Designed, operated and improved CI/CD pipelines (Bamboo, GitLab)- Operated cloud platform components: Service Discovery (Consul, Zookeeper); ELK stack; Load Balancing (HAProxy, AWS ALB); Database & Stream-processing (PostgreSQL, Kafka); Monitoring (Graphite, Grafana, Sensu, Prometheus, Datadog)- Direct collaboration with various open source projects by providing feedback as well as code improvements via Github

Ishikawa, Japan

Beuran Laboratory- Created cyber-ranges for cyber-security training by KVM- Created a framework for automating attack actions for training, based on CVEs and Metasploit- 4 Publication (author, co-author)- Programming language: Python

- Extensive knowledge about Linux administration, manage and develop service on Linux platform (Postfix, Zimbra, syslog-ng, elasticsearch, logstash,...)- Building mail relay system for large amount of mails (Email Blast)- Research on Security Information and Event Management (SIEM) - Study on Security Solution in Enterprise Network- Building Gateway, Monitoring and Management Network System based on the Linux platform - Projects in building Security system for ISP, especially for DDoS Mitigation

- Networking, routing, switching, LAN, WAN, MAN. (Routing protocol: OSPF, BGP, MPLS…; Layer 2 protocol: STP, VTP, VRRP…; Network Architecture for ISP)- Unix/Linux and Email, DNS service.

Master'S Degree, Management Information Systems And Services

Bachelor'S Degree, Electronics And Telecommunications, University Of Engineering And Technology

Education record