Full-Stack Engineer building backend systems, automation platforms, and developer tools

Louis Wen

Full-stack engineer with 9+ years of experience building automation platforms, internal tools, and operational systems end-to-end across teams in Taiwan and Japan. I specialize in turning complex workflows into practical software — from self-service infrastructure and monitoring platforms to domain-specific tools that reduce manual work and support day-to-day operations.

Featured Work

All projects

Tech Stack

Backend

JavaSpring BootSpring CloudSpring Data JPAPythonFastAPINestJSNode.jsExpressGo

Frontend

ReactTypeScriptNext.jsViteVue.jsTailwind CSSstyled-componentsRecharts

Database

MySQLPostgreSQLMongoDBMariaDBRedisElasticsearch

Infrastructure

DockerKubernetesOpenShift (OCP)GKETerraformArgoCDGitHub ActionsJenkinsAnsible TowerNginx

IoT / Messaging

MQTTRabbitMQLINE Messaging APIServer-Sent Events

Testing & Automation

PlaywrightJUnitMockitoPytestVitestCodeceptJSMocha

Automation & Tools

AnsibleJinja2Ansible Vaultansible-lintELKGrafana

AI & LLM

MCPFastMCPOpenAI API

About

Backend-focused full-stack engineer currently at Adventure, Inc. in Tokyo. I build hotel pricing automation, inventory management systems, and developer tooling that streamlines engineering workflows.

My experience spans from IoT monitoring systems to AI-powered tool chains, with a focus on delivering reliable backend services and full-stack solutions across diverse domains.

Languages: Chinese (native), Japanese (JLPT N1), English.

Let's work together

Interested in collaborating or want to learn more about my work?