Resume / Field notes
Curriculum Vitae
A collection of what I’ve learned, built, and experienced.
Ming-Jung Yu
Senior Software Engineer · Full-Stack · Python · React · Next.js · AWS · 5+ Yrs Experience
SUMMARY
Backend-focused Software Engineer with 5+ years of experience, including 4 years building Python backend systems across healthcare, IoT, and enterprise applications. Experienced in AWS serverless and microservices architectures, API and data processing workflows, PostgreSQL, Redis, and asynchronous programming. Delivered solutions that improved IoT processing performance by 80% and reduced deployment workflows by 90%+. Also experienced in React/Next.js frontend development, cross-functional collaboration, and mentoring developers.
Work Experience
Senior Software Engineer
Mar 2024 - Apr 2025
TAO Digital Solutions
ReactJS · TypeScript · .NET / C# · Node.js · GraphQL · MongoDB · Playwright · Cypress · Monorepo
- -Developed and maintained features for automotive repair and vehicle tracking platforms, working across React frontends and supporting backend services built with Node.js, .NET, GraphQL, and MongoDB.
- -Investigated cross-stack production issues, including backend caching behavior affecting the MFA authentication flow.
- -Co-designed and built an E2E automation workflow that reduced 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
Feb 2022 - Dec 2023
Innova Solutions Taiwan, LTD.
Python · AWS Lambda · S3 · SQS · SNS · Microservices · Selenium
- -Developed and maintained Python-based patient data processing services for US healthcare clients using AWS Services within an existing microservices architecture.
- -Implemented and debugged data processing workflows across AWS services, troubleshooting issues across multiple services and components.
- -Independently designed and built an AWS Lambda deployment automation solution, integrating Jira, Fortify, and Black Duck and reducing release time by 90%+ (~1 hr → 3–5 mins).
- -Mentored developers on domain logic and AWS architecture, authored technical documentation, and regularly demonstrated technical progress to stakeholders.
Back-End Software Engineer
Nov 2019 - Mar 2021
AcBel Polytech Inc.
Python · PostgreSQL · Redis · MQTT
- -Built and maintained Python backend services for solar energy and smart streetlight IoT systems, processing real-time sensor data through MQTT.
- -Improved IoT data processing performance by 80% through asynchronous programming, Redis caching, and PostgreSQL indexing.
- -Designed and maintained data processing workflows and database interactions for high-volume IoT sensor data.
- -Worked directly with hardware vendors to define integration specifications and align software and hardware interfaces.
- -Led daily Scrum ceremonies and mentored engineers through code reviews and technical guidance.
Back-end Engineer
Sep 2018 - Aug 2019
Synergies Intelligent System Inc.
Python · Flask · SQLite
- -Developed backend functionality for a business intelligence platform using Python, Flask, and SQLite to support business operations and sales analysis.
- -Supported a Robo-Advisor platform for banking clients through debugging, QA/UAT, and production deployment.
Research Assistant (Intern)
Apr 2017 - Jun 2018
Shih Chien University
Python · SQL · SAS
- -Analyzed nationwide social welfare datasets covering 20 million citizens using SQL and SAS, identifying socio-economic factors associated with vulnerable families.
Website Developer (Intern)
Apr 2016 - Jan 2018
Shih Chien University
Python2 · Django · JavaScript · HTML · CSS
- -Developed Django-based university websites from stakeholder requirements, including a campaign website for the Tzu Chi (慈濟) Foundation.
Personal Projects
Miri Robot Fortune-Teller - Independently designed, architected, launched, and maintained a full-stack divination platform that digitizes six traditional fortune-telling methods into interactive online experiences, with Google OAuth authentication.
Next.js · Python · Firestore · TailwindCSS
Banqi Chinese Chess - Designed and built an online Chinese Banqi chess game from scratch, featuring single-player gameplay with a lightweight AI and real-time multiplayer.
Next.js · Firestore · TailwindCSS
Personal Website & Portfolio - Built and operated a personal website reaching 300,000+ page views, combining long-form content, personal projects, and professional work, with a focus on SEO and web performance.
Next.js · TailwindCSS · GA · SEO
Core Skills
Backend
Python, AWS Lambda, FastAPI, Flask, PostgreSQL, MongoDB, Redis, MQTT,
Frontend
Next.js, React, TypeScript, TailwindCSS, GraphQL,
Cloud & Tools
AWS, Microservices, Monorepo, Firestore, Docker, Playwright, Cypress, Selenium, Jira,
Education
Shih Chien University
M.S. Information Technology and Management
2016 - 2018
B.S. Information Technology and Management
2011 - 2015
Languages
ChineseNative
EnglishIntermediate
JapaneseJLPT N3
EspañolIntermediate