C,Python,Shellscript,Java,Javascript,HTML,Linux,Aws,Apache,Fastapi,SQL

HARUTA UCHINO

******.******@*****.*** • +81-80-432*-**** • Saitama, Japan • https://harutauchino.github.io/ SKILLS

Programming Languages: C, Python, Shell Script, Assembly, Java, JavaScript, C++, HTML Tools: Selenium, Langchain, MySQL, SQLite, FastAPI, Flask, Apache, iperf3, GDB, Linux, Docker, AWS, Git WORK EXPERIENCE

Intern GREE, Inc. Nov 2024 — Dec 2024

Implemented MySQL replication using Docker, enhancing database reliability. Acquired practical skills in cloud deployment methodologies, focusing on AWS infrastructure. Leveraged knowledge in Docker, MySQL, AWS, Bash.

Technical Staff AIST Dec 2023 — Jun 2024

Identified a bottleneck in new Ethernet tech with 50% of target throughput to improve research reliability. Verified the iperf3 measurement tool's throughput calculation accuracy, eliminating it as a potential issue. Achieved the target throughput in an on-premises environment by applying patches to the new technology. Implemented network switching functionalities on Linux using brctl and network interface configuration. Leveraged tcpdump for packet analysis to determine if packet fragmentation was occurring. Implemented Linux namespaces to achieve precise time synchronization across a multi-PC network. Configured iptables and ebtables to manage network traffic, enhancing control within the environment. Leveraged knowledge in Ethernet, TCP/IP, iperf3, iptables/ebtables, netns, tcpdump, Shell Script. Intern NIDEC Co. Ltd. Aug 2021 — Aug 2021

Developed the UI of a customer management web application for customers. Leveraged knowledge in Java, JavaScript, CSS, HTML. EDUCATION & ACADEMIC RESEARCH

Master Electrical and Electronic Engineering Kogakuin University Network Computing Laboratory GPA 3.9/4.0 Apr 2024 — Present Optimized a memory allocator based on Microsoft's mimalloc to achieve efficient memory usage and high- performance parallel processing.

Utilized: C, ShellScript, GDB, and Linux Interface. Bachelor Computer Science and Engineering University of Aizu Information Security Laboratory Apr 2021 — Mar 2023 Enhanced RISC-V 5 instructions into 1, achieving a 5x performance boost in cryptographic processing. Utilized: C, Assembly, Verilog, GNU Binutils

SOFTWARE PROJECT

Retirement Planning Simulator : https://semiretiretool.com Engineered a Python/FastAPI web app calculating FIRE's savings/retirement age, using Redis for caching. Deployed using Docker on AWS with ALB/EC2, ensuring high availability and a robust, scalable experience. Implemented security measures including HTTP headers like CSP, HSTS, and XSS. AI-Automated-Glassdoor-Job-Scraper

Developed a Python tool using SeleniumBase/Langchain to scrape and analyze Glassdoor jobs with LLM. Mem Profiler Benchmark

Built a Bash script for benchmarking memory allocator performance in multi-threaded environments. ACHIEVEMENTS

Graduate School Entrance Fee Exemption (2024): Awarded to the top 40% on entrance exam results. JASSO Scholarship Type 1 and Type 2 (2024): Granted JASSO dual scholarship for academic achievement.

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