About me

My name Kuang-Yu Li (李光宇). I come from Taiwan and my mother tongue is Mandarin.

I’m…

• a full-stack developer, cloud specialist, and DevOps advocate.
• an experienced developer from my previous roles at IBM and MediaTek.
• proficient in Java programming, Data Structures, Algorithms, and System Design.
• focusing on Cloud Computing, Distributed Systems, and Network Technology.
• familiar with cloud platforms, container technology, RESTful web service development.
• a team player with both agile practice experience and mindset.

My current career goal is to become a Solution Architect. I am expected to finish my Master’s program at the University of Stuttgart in Germany around Feb 2022.

Technical Strength

• Domain Area: Distributed Systems, Cloud Computing, Service Computing
• Programming Language: Java (expert), C++ (fluent), Python, C, TypeScript, Shell
• Database: MySQL, PostgreSQL
• DevOps: Git, GitHub, Docker, Kubernetes, OpenShift, Travis CI
• Web Development:
  • Frontend: Angular
  • Backend: Spring Boot, MVC, JPA/Hibernate, Data REST
  • Web server: NGINX, Apache Tomcat
• Cloud Platform:
  • AWS: EC2, Elastic Beanstalk, SQS, RDS, S3, ElastiCache
  • GCP: Kubernetes Engine, Functions, Pub/Sub
  • IBM Cloud: VPC, Virtual Protect Server

Work Experience

IBM, Böblingen, Germany

Intern, Z Firmware, IBM Systems, Apr. 2021 - Sept. 2021 (6 months)

• Developed a cloud-native C++ remote IDE (integrated development environment) for Ubuntu on z15 mainframe based on Eclipse Theia and VSCode Extension API using Scrum approach
• Automated Theia deployment with bash script for installing packages and packaged application into Docker image file with Dockerfile
• Verified IDE feasibility and compatibility by deploying and testing Eclipse Theia on Hyper Protect Virtual Server and Eclipse Che on Minikube
• Integrated, tested, and deployed C++ dev tools to Codeready Workspace w/ CMake, IntelliSense, CTest, GDB and GoogleTest functionality on a self-administered OpenShift Container Platform on zFyre
• Improved z/CECSIM server development productivity by rewriting traces (15 files and 400 lines) from C filestream API to POSIX system call, to ensure trace visibility when crashing.

MediaTek, Inc, Hsinchu, Taiwan

Firmware Engineer, Modem Signal Processing, Communication System Design, Dec. 2015 - Aug. 2019 (3 years 9 months)

• Developed embedded firmware in MediaTek’s Android platform for 4G LTE and 5G NR physical layer (PHY) digital signal processing
• Contributed to 6k and maintained 20k lines of code in C/C++ for 3 large-scale projects (over 200k lines and 1,000 developers) including 2019 world’s fastest 5G modem Helio M70 with downlink throughput of 4.7 Gbps
• Designed mobile modem receiver modules, implemented OFDM signal processing algorithms accordant with 3GPP Spec, integrated build and auto testing process for design and system verification with Perl and Python scripts
• Resolved urgent system function and performance issues for over 10 MediaTek’s Helio X and P series smartphone products with log examination, signal and procedure analysis, solution formulation and implementation, patch verification and release
• Received 7 MediaTek vAwards (top 10\% monthly team performance) including improving 4G downlink data rate by 300\% (14$\rightarrow$42 Mbps) with Massive MIMO feature and reducing 5G control channel decoding computation cycles by 72\% (3700$\rightarrow$1000 cycles)

Education

Universität Stuttgart, Stuttgart, Germany, Oct. 2019 - Feb. 2022 (Expected)

• M.S. in Information Technology, GPA: 3.53/4.0 (German Grading: 1.7 (Gut))

Katholieke Universiteit Leuven (KU Leuven), Leuven, Belgium, Aug. 2012 - Aug. 2013

• Joined dual master degree exchange program with NCTU
• The only undergraduate student 2013 to receive KUL master degree in 2013 (1 out of 54 in NCTU)
• Project: DCF77 Receiver Mix-signal IC Design

National Chiao Tung University (NCTU), Hsinchu, Taiwan, Sept. 2009 - Oct. 2015

• B.S. in Electrical Engineering and Computer Science, GPA: 3.9/4.3
• M.S. in Electronics Engineering and Electronics, GPA: 4.27/4.3

Projects

Publication & Honor

A 0.5-V 28-nm 256-kb Mini-Array Based 6T SRAM With Vtrip-Tracking Write-Assist, IEEE Transactions on Circuits and Systems I, Jul. 2017.

• 2nd Ranking in integrated circuit journal

NCTU Excellent Exchange Student Scholarship, NCTU, Aug. 2012

• 9,000 USD for exchange to Katholieke Universiteit Leuven, Belgium (top 2% in NCTU)

MediaTek vAward, MediaTek, Oct. 2016, Apr/Jul./Oct. 2017, Apr./Oct./Nov. 2018

• 7-time award receiver with 270 USD bonus for each (top 10% in MediaTek per month)

Recognition of contribution to the Gen91 modem, MediaTek, Aug. 2016

• R&D and market success for achieving 4G world-mode and 25% battery life saving in Gen91 modem