Ming-Jung Yu

Full-Stack Engineer | 5+ Yrs Experience | Python, ReactJS, NextJS

ming-jung-yuminayu416yuukoyu416@gmail.com@Mina Influence

Full-stack engineer with 5+ years of experience delivering scalable web applications across automotive, healthcare, IoT, and BI. Skilled in Python, React and Next.js, and cloud-based microservices.

Proven track record in performance optimization and automation. Experienced in mentoring engineers, partnering with PMs, designers, QA, and vendors across US and Asia teams, and writing clear, maintainable technical documentation.

RELEVANT WORK EXPERIENCE
Senior Frontend Developer — TAO Digital Solutions
Mar 2024 - Apr 2025
React.js, TypeScript, .NET, C#, Node.js, GraphQL, MongoDB, Playwright, Cypress, Monorepo
  • Collaborated across teams US and India to develop automotive repair appointment platform, vehicle tracker system and eSign MVP.
  • Proactively identified and resolved a backend caching issue, significantly improved the UX of MFA page.
  • Collaborated with QA to automate E2E testing workflows, reducing manual QA effort by ~90% (1–2 hrs ➝ 5–10 mins).
  • Automated Excel timesheet reporting via TypeScript, reducing manual work for senior leadership by ~95% (10 mins ➝ 2 secs).
Software Engineer — Innova Solutions Taiwan, LTD.
Feb 2022 - Dec 2023
Python, AWS (Lambda, S3, SQS, SNS), Microservices, Selenium
  • Developed large-scale patient data pipelines for US healthcare clients; collaborated across PST/CST time zones.
  • Innovated AWS Lambda deployment automation (with Jira and Fortify & Black Duck integration), slashing release time by over 90% (~1 hr ➝ 3–5 mins).
  • Mentored new developers on domain logic, AWS architecture, and Scrum practices, improving team productivity and cohesion; authored technical documentation to support knowledge sharing and onboarding.
Back-End Software Engineer — AcBel Polytech Inc.
Nov 2019 - Mar 2021
Python, PostgreSQL, Redis, MQTT
  • Built and maintained IoT backends for solar energy/streetlight systems using Python and MQTT for real-time data processing.
  • Boosted IoT data processing speed by 80% through Async programming, Redis caching, and database indexing.
  • Collaborated with hardware vendors to define integration specs and align software-hardware interfaces.
  • Led daily Scrum and mentored engineers through code reviews and technical guidance.
Back-end Engineer — Synergies Intelligent System Inc.
Sep 2018 - Aug 2019
Python, Flask, SQLite
  • Built and tested APIs for an AI-driven BI platform (SyGPS) analyzing business operations and sales metrics.
  • Supported a Robo-Advisor system for banking clients, contributing to QA/UAT, debugging, and deployment success.
Research Assistant (Intern) — Shih Chien University
Apr 2017 - Jun 2018
Python, SQL, SAS
  • Analyzed data from 20 million citizens in a social welfare project with the Ministry of Health and Welfare officials, uncovering socio-economic factors affecting vulnerable families using SAS and SQL.
Website Developer (Intern) — Shih Chien University
Apr 2016 - Jan 2018
Python2, Django, JavaScript, HTML, CSS
  • Designed and built university websites based on stakeholder input, including a campaign site for the Tzu Chi (慈濟) Foundation.
Personal Projects
Miri Robot Fortune-Teller — Online divination service digitizing 6 fortune-telling methods with brand-aligned UI and account features. Built with Next.js, Python, and Firestore.
Banqi Chinese Chess — Chinese Banqi game supporting single-player (simple AI and same-device) and real-time multiplayer modes. Built with Next.js and Firestore.
Portfolio — Portfolio website showcasing personal projects and career experience. Built with Next.js and TailwindCSS.
EDUCATION
Shih Chien University Information Technology and Management
  • M.S. (2016 - 2018)
  • B.S. (2011 - 2015)
OTHER
Languages: Chinese (Native), English (Intermediate), Japanese (JLPT N3), Spanish (B1)
Relevant Coursework: AWS Developer Learning Plan (2024)