洪鈞閔(Jasper)

全端工程師 | [email protected] | https://library.wowkit.net/blog

SUMMARY

  • 2+ years of full stack development experience in Ruby on Rails and React.js
  • Skilled in test-driven development, agile methodologies, and CI/CD practices
  • Demonstrates adaptability in dynamic tech environments with a strong focus on enhancing product stability and team collaboration
  • Actively engages in cloud technology advancements and knowledge sharing
  • Actively learning and applying web performance optimization techniques to improve system responsiveness and efficiency, with a keen interest in developing skills in this area

WORK EXPERIENCE

Full-Stack Web Developer  •  Yourator - 友睿資訊股份有限公司

四月 2022 - Present  |  Taipei, Taiwan

  • Significantly improved system performance using k6, increasing request handling from 8% to 99%
    Reduced engineering resource needs by 99% through the integration of Builder.io
  • Led the development of a seamless single sign-on system, effective web notifications, and efficient internationalization(i18n), achieving a substantial 90% reduction in translation expenses
  • Developed and maintained features using React.js, Next.js, and Ruby on Rails; optimized containerization services
  • Enhanced system insights and efficiency using Filebeat, APM Server, and Elasticsearch for log analysis, bottleneck resolution, and search system development
  • Ensured system reliability through monitoring with Grafana, and established robust CI/CD pipelines using GitHub Actions and Circle CI
  • Enhanced article page performance, achieving a 60% improvement in loading speed. Developed a technical architecture template, significantly expediting project planning and reducing oversights

Software QA Intern  •  Kdan Mobile

八月 2020 - 六月 2021  |  Taipei, Taiwan

  • Develop auxiliary testing Android APP, effectively shortening routine testing time during SDK iterative updates
  • Use datadog, selenium, and cypress for end-to-end testing to ensure product stability
  • Maintain the redmine system and greatly improve the efficiency of tracking product BUG repair progress
  • Developed redmine plug-in. When the problem changes, messages can be sent immediately through mattermost to reduce missed orders
  • Use Raspberry Pi to develop weak network environment simulation to increase the variability of various testing scenarios
  • Use Mitmproxy to track app api status and confirm the cause of the problem

EDUCATION

Southern Taiwan University of Science and Technology

Department of Information Management  •  2017 - 2021

TECHNICAL PROFICIENCIES

  • Frontend: React.js, Next.js, Vue.js, Tailwind, Storybook, React Testing Library
  • Backend : Ruby on Rails, Golang
  • Database: MySQL, Postgresql, Redis, ElasticSearch
  • Monitor & Log Collector: Grafana, New Relic, ELK, Filebeat
  • Cloud: GCP, AWS, Linode, Cloudflare
  • Other: Nginx, Docker, Shell script, Puma, Git, Github Action, Circle CI
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