vito

Professional Skills

Deveploment:

  • Java
  • Spring Boot
  • Jenkins
  • Grafana
  • AWS
  • Kubernetes
  • Nomad
  • Kubeflow

Other:

  • Html/css/js/Ajax
  • Python
  • Openshift
  • Nginx
  • PHP
  • SQL/NoSQL
  • JUnit/MockMvc

Professional Experience

  • Sep/2020 ~ Now
    Senior Software Developer
    Locate in Taiwan
    • API Design & Optimization
      • Architected and customized high-performance Cloud APIs, implementing load balancing and query validation logic that significantly reduced database errors and improved overall system efficiency.
      • Maintained and scaled production-grade web pages and servers, managing a diverse environment of both NoSQL and relational SQL databases.
      • Reduced on-call rates from 42% to 10% by implementing proactive bug fixes and performance tuning, enhancing team availability and reducing workload stress.
    • CI/CD & DevOps Engineering
      • Engineered and managed robust CI/CD pipelines, reducing Jenkins deployment failure rates from 20% to 3% and ensuring smoother, more reliable code releases.
      • Spearheaded infrastructure upgrades, including the migration of distribution systems from Mesos to Nomad and the integration of Loki into Grafana for advanced system monitoring.
      • Facilitated cloud migration by moving legacy services to OpenShift, ensuring high availability and modernizing the application stack.
    • Database & System Integrity
      • Implemented and maintained core production libraries and databases, ensuring 24/7 data integrity through routine maintenance, backups, and structural updates.
      • Developed real-time monitoring for API request rates in Grafana to identify and resolve performance bottlenecks before they impacted end-users.
    • Technical Leadership & Project Management
      • Led a Scrum team of 4–5 junior developers, breaking down complex technical requirements into manageable milestones and providing mentorship to bridge skill gaps.
      • Directed team-wide host upgrades, serving as the technical lead to ensure seamless transitions and adherence to industry best practices.
      • Co-authored technical research for the Micron TLP Journal, contributing to data-driven testing methodologies using Yeo-Johnson transformations and IQR outlier removal.
    • Technical Notes:
      • 1. Infrastructure(Machine learning, CI/CD):
      • How to set up Mesos on ubuntu 18.04
      • How to Implement Movie RecommendationSystem- P1
      • How to Implement Movie RecommendationSystem- P2- Hadoop
      • How to Implement Movie RecommendationSystem- P3- webCralwer/MongoDB
      • How to Implement Movie RecommendationSystem- P4- kafka
      • How to Implement Movie RecommendationSystem- P5- Spark
      • How to Implement Movie RecommendationSystem- P6- SnowNLP
      • How to integrate Argo CD into release flow-P1
      • How to integrate Argo CD into release flow-P2
      • How to integrate Argo CD into release flow-P3
      • How to set up Kubeflow locally- P1- minikube
      • How to set up Kubeflow on AWS- P2- microk8s
      • How to set up Kubeflow on AWS- P3- pipeline
      • How to set up Kubeflow on AWS- P4- house prediction pipeline
      2. Side Project (AWS, Vercel, RAG):
      • SChatGPT + LINE bot deploy to vercel tutorial
      • WordPress ECR + RDS on AWS
      • WordPress + nginx + cerbot on AWS EC2
      • How to implement local LLM RAG
      • How to implement RAG Evaluation
  • Apr/2019 ~ Aug/2020
    Junior Software Developer at Air Black Box
    Locate at Manchester, United Kingdom
    • API Design & Optimization:
      • Investigated API document for aviation
      • Implementation java API for aviation
    • Automation testing:
      • Set up environment with cucumber-JVM testing tool
      • Implemented test script across E2E and unit test for aviation industry
      • Containerizing cucumber-jvm include webdriver test script with Docker
    • Technical Notes:
      • 1. Infrastructure(Docker, Kubernetes, Helm):
      • How to set Domain name for different service in kubernetes
      • Integrate paypal API with microservice architecture
      • Helm Chart DB ‘connection refused’
      • How to move kubernetes yaml files to helm Charts
      • How to set up CI/CD in the kubernetes cluster Part.1,2,3
      • Prometheus and Grafana on kubernetes
      • Horizontal Pod Autoscaling on kubernetes
      • Deploy Istio Ecommerce services on kubernetes
      • Integrating Jenkins with telegram
      2. Java (Spring security,Spring cloud, Spring boot):
      • Spring security – jwt
      • Spring cloud implement microservice
      • gRPC implement in Spring boot
      • Integrating gRPC implementation into E-commerce
      3. Automation test setting(Cucumber-JVM, Cypress):
      • How to integrate CI/CD with E2E test in container
      • Set up Cucumber with report in intellij java
      4. Frontend knowledge:
      • Only Chrome Failed to load resource: net::ERR_CONTENT_DECODING_FAILED
      • WordPress performance tunning tutorial
  • Jan/2019 ~ Feb/2019
    Software Developer at Datalex
    Locate at Manchester, United Kingdom
    • Traced and improved fare search components reducing search times by a factor of two.
    • Studies ATPCO documentation
    • Worked as a team with agile methodology.
    • Managed and contributed code into a large code base
  • Mar/2017 ~ Aug/2018
    Software Developer at Acer
    Locate at Taipei, Taiwan
    • Specialized in software engineering proficiency and product development.
    • Resolved extensive technical project issues, with frontend and backend contributions.
    • Completed various product developments:
      • Implemented RESTful API in project development, resulting in increasing efficiency.
      • Integrated third-party APIs (google, Facebook), increasing website hits.
      • Developed infrastructure models and computing logistic flow for social media ChatBot.
      • Developed localization tool, which would process 100K Excel files per minute.
      • Integrated the docker container technology into the development environment, which made the overall process more efficient.
  • Aug/2016 ~ Jan/2017
    Studying at Institute for Information Industry
    Locate at Taoyuan, Taiwan
    • Advanced class with Java web service development
  • Feb/2014 ~ Aug/2016
    Software Application Engineer at Himax Technologies, Inc
    Locate at Hsinchu, Taiwan
    • Specialized in verifying display integrated circuits and analyzing MIPI Display Serial Interface
    • Implemented customization programs for clients:
      • Developed UI software for client which led to great ratings for client satisfaction
      • Developed software analyzing tools and debugging program to improve product efficiency.
  • Aug/2010 ~ Aug/2012
    Studying at National Cheng Kung University
    Locate at Tainan, Taiwan
    • Master of Engineering in Electrical and Electronics Engineering