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Ming-Jung Yu

Full-Stack Engineer | 5+ Yrs Experience | Python, ReactJS, NextJS | Product Thinking · Creative Problem-Solving

Taipei, Taiwan · yuukoyu416@gmail.com · linkedin.com/in/ming-jung-yu · @Mina Influence

Full-stack engineer with 5+ years of experience delivering scalable web applications across automotive, healthcare, IoT, and BI. Skilled in Python (4 yrs), React (2 yrs) and Next.js, and cloud-based microservices.

  • Creative problem solver with a focus on performance and automation — resolved backend caching issues to improve UX, boosted IoT sensor data processing by 80%, innovated Lambda deployment automation with Jira, Fortify, and Black Duck scans, and reduced 90% manual Excel reports by automation scripts.
  • Effective collaborator — partnered with US, India, and Asia teams for cross-timezone development. Co-developed E2E testing with QA, aligned with hardware vendors, and mentored junior engineers.
  • Product thinker with a passion for learning — creator of an online fortune-telling platform and a real-time Banqi board game. Continuously explores tools and UX-focused design with a hands-on mindset.
RELEVANT WORK EXPERIENCE
TAO Digital Solutions — Senior Frontend Developer
Mar 2024 - Apr 2025 | React.js, TypeScript, .NET, GraphQL, MongoDB, Playwright, Cypress
  • Contributed to the development of a US-based automotive repair appointment platform using React.js and .NET.
  • Proactively identified and resolved a backend caching issue, significantly improving system responsiveness and user experience.
  • Automated E2E testing and reporting workflows, reducing manual QA effort by ~90% (1–2 hrs ➝ 5–10 mins) through scheduled runs and visual output.
  • Developed scalable CMS front-end (React + TypeScript) in a monorepo; integrated GraphQL with MongoDB and partnered with teams across US and India.
  • Automated Excel timesheet reporting via JavaScript, cutting manual work by ~95% (10 mins ➝ 2 secs) and streamlining reports for employees and senior leadership.
Innova Solutions Taiwan, LTD. — Software Engineer
Feb 2022 - Dec 2023 | Python, AWS (Lambda, S3, SQS), Microservices, Selenium
  • Developed large-scale patient data pipelines for US healthcare clients using Python and AWS; 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 a junior dev and streamlined onboarding on domain logic, AWS stack, and Scrum, boosting productivity and team cohesion.
AcBel Polytech Inc. — Back-End Software Engineer
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 through joint technical discussions.
  • Led daily Scrum and mentored junior engineers through code reviews and technical guidance.
Synergies Intelligent System Inc. — Back-end Engineer
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.
Shih Chien University — Research Assistant (Intern)
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.
Shih Chien University — Website Developer (Intern)
Apr 2016 - Jan 2018 | Python2, Django, HTML, CSS
  • Designed and built university websites based on stakeholder input, including a campaign site for the Tzu Chi (慈濟) Foundation.
EDUCATION
Shih Chien University — M.S. in Information Technology and Management
2016 - 2018
  • Class Representative (2 years)
  • Selected as Japanese translator & staff at Kyoto Seminar
  • Participated in a 2-week corporate exchange in Pennsylvania, USA
Shih Chien University — B.S. in Information Technology and Management
2011 - 2015
SKILLS
Programming: Python, JavaScript, TypeScript, HTML, CSS
Frameworks & Libraries: ReactJS, NextJS, Flask, FastAPI, Django, TailwindCSS, Hugo
Architecture & Patterns: Microservices, Monorepo, RestAPI, GraphQL
Tools & Platforms: Git, Jira, AWS, Google Firebase
Database: PostgreSQL, MySQL, SQLite, MongoDB, Redis, Firestore
Misc: MQTT, Figma, E2E automation with Selenium, Playwright and Cypress
Personal Projects
@Mina Influence — minayu.site/en
Features: Personal website documenting life, creations, and thoughts.
Tech Stack: Next.js, TailwindCSS, Github Page
Miri Robot Fortune-Teller — minayu.site/en/miri
Features: A self-developed online divination platform that digitizes traditional fortune-telling. Includes 6 types of divination methods, a step-by-step guide, user accounts, and a UI design aligned with the brand identity.
Tech Stack: Next.js, Python, TailwindCSS, Google Firestore, SQLite
Banqi Chinese Chess — banqi-half-chess.vercel.app/
Features: Chinese Banqi game with single-player mode (simple AI and same-device multiplayer) and online multiplayer mode.
Tech Stack: Next.js, TailwindCSS, Google Firestore
Fancy Chat Room — project-fancy-chat-room/
Features: A simple real-time chat room project built to practice frontend skills and explore real-time communication technologies.
Tech Stack: React.js, TailwindCSS, Google Firestore
Portfolio — minayu.site/en/portfolio
Features: A showcase of self-initiated projects and team projects I’ve contributed to.
OTHER
Languages: Native Chinese, Intermediate English (TOEIC 635), Fluent in Japanese (JLPT N3) and Spanish (B1)
Personal Projects: AWS Developer Learning Plan (2024)