Located in Vancouver, Canada. As a member of the Azure team, I've primarily focused on migrating the NuDetect System from AWS to Azure which involves switching VM-based applications to Kubernetes-based applications. My DevOps experience is contributing a lot to our tasks. ● Containerize applications for AKS ● Shifting from VM-based system to Kubernetes-based system. ● Refactor legacy codebases (Compliance to PSR-4) ● PoC of using Envoy as an auth middleware with gRPC ● Drive major version upgrade of PHP and PHPUnit ● Contributing to an Open Source Project (https://github.com/Mastercard/client-encryption-php) Tech stack: Azure, AKS, Kubernetes, Minikube, Helm, PHP, Lumen, CosmosDB, Postgres, Jenkins, Envoy, gRPC, Spring, Sonarqube

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Kidsloop is an EdTech company that provides global online services for children. The main services are the Badanamu ESL mobile app and KidsLoop web services. I'd been migrating their services from Lamda-based to Kubernetes-based from scratch. ● Refactored entire JavaScript codebase to TypeScript ● Built and deployed entire Kubernetes Clusters including CI/CD, Log management, Application Monitoring, Infrastructure Monitoring ● MSA Server applications development with Golang and TypeScript. ● Drove deployment process for Vietnam and Indonesia - including CDNs, Multi Kubernetes clusters, etc. Tech stack: AWS, Kubernetes, ArgoCD, Jenkins, Ansible, Golang, Typescript, React, GraphQL, JFrog, Datree, CircleCI

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Insunet is an insurance brokerage company in South Korea. They help customers take out the best insurance at a reasonable price. They care about Search Engine Optimization for advertising their service. ● Built React applications using TypeScript with a Next.js backend ● Set up SSG (Static Site Generation) and SSR (Server Side Rendering) with Next.js for SEO (Search Engine Optimization) ● Built Node Express APIs using TypeScript ● Refactored entire codebase from JavaScript to TypeScript ● Set up AWS VPC environment from scratch including Subnetting with Terraform Tech stack: AWS-amplify, AWS ECS Fargate, Terraform, TypeScript, MongoDB, React, MobX, Firebase

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Stagefive is a Kakao company. Kakao is one of the major big IT companies in South Korea, and Stagefive was planned to be a major telecommunication company in South Korea. ● Developed a highly available, redundant microservice architecture using AWS, including ECS, RDS, and ElasticLoadBalancer based on Network knowledge (TCP/IP, NAT, Subnet) ● Implemented a deployment pipeline (CI/CD process) combining AWS Codepipeline, Terraform for continuous automated deployments of applications and immutable infrastructure. ● Improved server downtime by implementing a monitoring solution using OpsGenie, Sentry, AWS Cloudwatch and custom code for infrastructure and application APIs. ● Developed and maintained an internal messaging system capable of sending messages to 2M customers per hour. ● Developed and maintained a virtual phone number assignment system capable of bearing over 200 transactions per second ● Implemented an asynchronous Call Detailed Records (CDR) distribution using AWS SQS and Lambda with Serverless.js Tech stack: AWS, K8S, Code-pipeline, Docker, Express, Node.js, Maria DB, Redis, Terraform

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Originally a gaming studio, Stack pivoted into becoming a software outsourcing company. ● Built the alljoyn WebOS library on os framework level from scratch ● Architected an app based on the MVVM paradigm using RxSwift framework ● Prototyped an app to quickly solicit feedback from customers ● Reduced cost by delivering high development performance on a diverse platform ● Reduced cost of client-server development by more than half by splitting the back-end web API from the business logic layer. ● Released over ten apps to the App Store and the Google Playstore using a single, highly versatile codebase. ● Built a web application from start to finish. ● Maintained our full suite of applications. Tech stack: iOS, Android, WebOS, JavaScript, Java, Spring, Swift, Objective-C, Kotlin, C++, Yocto, Git, Gerrit, Embedded, Unity, Cocos2dx

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Reference was a software outsourcing company. ● Worked on a range of mobile projects, including iOS and Android design and development. ● Reduced cost by improving DX (Developer Experience) on diverse platforms. ● Released five apps to the App Store and the Google Playstore using a single, highly versatile codebase. Tech stack: iOS, Android, JavaScript, Java

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