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Hi, I'm Junkai Man, a master's student at Brown University studying Computer Science. I am passionate about Full-Stack Development and AI products.

I am capable of and enjoy the entire process of designing, prototyping, and deploying the software solutions to the end users, providing them with the best user experience.

In 2020, I founded Gallinula, a community that gathers student developers at Duke Kunshan University to code their ideas into reality. In 2023, I started writing a book MakeYourApp.today on how to quickly build full-stack applications from scratch.

I love exploring all kinds of new gadgets and following the trend of cutting-edge technologies. My current interests are in Mixed Reality, Human-AI collaboration, and the future of work.


[Find me on LinkedIn and Instagram]
Experience
Microsoft
April 2024 - Present
Software Engineer Intern
-> Forms Copilot
Microsoft
July 2022 - Oct 2022
Support Engineer Intern
-> Azure Monitor
Brown University Library
Sept 2023 - April 2024
Software Engineer Intern
-> BruKnow Search
China Unicom
June 2021 - Aug 2021
Software Engineer Intern
Education
Brown University
2023 - 2025
Sc.M. in Computer Science
Duke University / Duke Kunshan University
2019 - 2023
B.S. in Data Science & B.S. in Interdisciplinary Studies
Tools & Technologies
  • Javascript, Typescript
  • HTML, CSS, SASS
  • React.ts, Next.js, Vue.js
  • C++, Python, Java, Go, PHP
  • pandas, numpy, matplotlib
  • SQL, MongoDB, Redis
  • Docker, Kubernetes, ArgoCD
  • Hadoop, Spark, Kafka
  • IoT, Raspberry Pi, Arduino
Skills
  • Full-stack Web Development
  • LLM & RAG system design
  • Prompt Engineering
  • Data Analysis & Visualization
  • Machine Learning & AI
  • DevOps & Cloud Computing
  • Creative Coding
Timeline
  1. 🤖 Hi, GPT-4o

    wow... Thanks to microsoft and my current job... Now I can access GPT-4o without worrying about my token usage anymore. 🤩

  2. 🧑‍💻 Back to Microsoft

    So happy that I got an opportunity to intern at Microsoft again this year. Excited to work on a project that align perfectly with my interests.

  3. 🇲🇽 Hola, Cancun

    Taking a short trip to Cancun during the spring break. 😎

  4. 🌊 Ocean State

    Just moved to Providence, RI, the Ocean State. Enjoying its calmness and beautiful scenery.

  5. 🎓 Graduation

    Today I graduated! Heading to 🐻 Brown University for my Master’s degree in Computer Science.

  6. 🎉 Congrats & Thank You Letters

    Got acceptance letters from 🧢Duke, 🐕‍🦺CMU, 🟪UW, 🍁UofT, 🚩Cornell, 🐻Brown. Rejected by Harvard, Stanford, UPenn, Cambridge.

  7. 🛫 Traveling

    And enjoy the last 3 month of my undergraduate life.

  8. 📖 Writing a Book

    I am writing an eBook about “How to make independent apps on your own”. See this in my LinkedIn Post. Sign up here.

  9. 🎓 A new project

    Got a little bit bored over the holiday. So I started working on the a new project Gallinula Course.

  10. 💉 Vaxxed & Boosted

    Finally China gave up its zero-covid policy. And I got another dose of vaccine. Ready for the reopening!

  11. ⬜️📄

    “ It's my duty. “

  12. 🖼️ Shanghai aftermath

    Zero-covid policy makes traveling to Shanghai difficult. But I went there anyway for an Art Gallery (before it was shut down because of stricter covid regulations)

  13. 🗺️ Interning but kept Exploring

    Exploring Shanghai! The Bund, Xintiandi, West Bund, Jing’an Temple, Nanjing Road, …

  14. 🧑‍💻 Google Dev' Summit

    Attended the Google Developers' Summit 2022. Meet some people, got some swags, learned some new stuffs, and got many inspirations.

  15. 🥷 Hacking ‘n Learning

    Working on a 2022 Microsoft Hackathon Project.

  16. 🏫 Grad School List

    Curating on my graduate school list, and preparing for TOEFL & GRE. Thank You, Starbucks☕️, for the Iced Caffè Americano. Btw, I appreciate those free giveaway desserts, too.

  17. 💼 Learning at Microsoft

    Starting my internship at Microsoft. Learned a lot of Azure related knowledge in the first month.

  18. ✅ Paper got accepted!

    My research project paper co-authored with Yufan got accepted by the ACM conference. Great!

  19. 🛫 Back to Guangzhou again

    Doing a short-term project in Guangzhou. Also got the chance to explore this city once again & re-united with DKU classmates by luck that many of them are processing the U.S. visa here this year.

  20. 🥳 Congrats to DKU Class of 2022

    Celebrating the graduation of DKU’s inaugural class of undergrads. Congrats to them!

  21. 🧪 Locked-down in DKU campus

    Taken into the Closed-loop operation. Got Covid tests every single day throughout the month.

  22. 🕹 Interdisciplinary DL Research

    Researching on some interdisciplinary Deep Learning projects including the Styled Font Generator.

  23. 🌘 Mathematical Contest in Modeling

    Attended this year’s MCM. McDelivery(🍔) in two successive days. All-nighter(🐼) in three successive days. And finally a successful award…

  24. 👨‍💻 Internship in Guangzhou

    Assisted building a User Content Recommendation system. Really enjoy the food there. Eat 早茶 every weekend.

  25. 🔍 Research Assistant

    Assisted Prof. Shixin Xu with his two research projects.

  26. 💡 Gallinula is Born

    Planning and building the Gallinula platform with the co-founders. Prototyping & building things in two months! Cool!

  27. 👨‍🎓 Zoom University at Home

    The year when Covid-19 pandemic starts. Attended Zoom University at home…(But, hey, this saves me more time to do other stuffs) Luckily China controls everything down before the beginning of Fall semester.

  28. 🚘 Driver’s License

    Got my driver’s license at the beginning of the year. But never drove the car out because of the COVID lockdowns.

  29. 🎉 Started at Duke Kunshan University

    Received the acceptance letter from DKU. Love this place so much!

  30. ✍️ Survived from Gaokao

    Survived from the most competitive exam in China. Also ended the most boring, stressed, and anxious period of time in my life :(

  31. 🥉 CASTIC in Chongqing

    Great experience! Meet with so many high school innovators from all over the world. But such a pity that I didn’t have a time to take a trip in Chongqing City.

  32. 🎹 Intro to Electronic Music

    The year I started listening to many Vaporwave & Hip-hop & Rap music. Also the year when Trap music becomes popular in China. Then I started learning to produce some (experimental) music on my own using Ableton and FL Studio.

  33. 🥽 A Glimpse on Virtual Reality

    Google released the Cardboard VR viewer this year. I bought one. Oh wait… is this the future!?

  34. 🕸 Building Website

    The year I started building my personal websites. Initially it was hosted on a cheap VPS using the WordPress. Later I chose the Hexo as the engine. After a long period of time, it was moved to BlogSpot. Now it is hosted on VPS using the GoHugo as the engine. Cool!

  35. 🐍 Life is Short

    Hello World. At the fifth grade in primary school and I was interested in Computer Programming. So I bought the book C++ Primer Plus as the tutorial. But at that time it was too difficult to understand… So I choose to learn Python.

  36. 📺 Hello Computer

    The first time I hit on the Computer keyboard, purportedly.

  37. 👶 Born in Shandong

    The year I was born.