Kai Hayamizu
Ocean Grove,VIC
Summary
Versatile software engineer with a diverse professional background, including cloud service development for the logistics industry using Ruby on Rails, front-end development with Next.js, and C#-based industrial software. Adept at full-stack development, customer support, and IT infrastructure. Experienced in both corporate and public sectors, and currently pursuing international tech opportunities.
Overview
9
9
years of professional experience
Work History
Software Engineer
ClockWiseSystem Inc.
01.2024 - Current
- Developed and maintained a cloud-based management system for the logistics industry using Ruby on Rails and PostgreSQL.
- Designed and implemented front-end interfaces using Rails templates and improved overall UX.
- Created custom features based on industry-specific needs, optimizing system performance.
- Developed C# software for sheet metal processing machinery, focusing on usability and precision.
- Built landing pages and company websites using React and Next.js with a strong focus on responsive design.
Customer Support & Web Marketing
Surflegend Inc.
08.2022 - 12.2023
- Managed customer inquiries, created FAQs, and analyzed feedback for product improvement.
- Conducted marketing campaigns via articles and social media for a surfing-related app.
- Participated in media interviews and collaborated on editorial content to enhance brand visibility.
IT Support & Helpdesk
RPC Inc.
01.2021 - 07.2022
- Monitored mobile base stations and performed command-based system checks.
- Supported iPad setup and application troubleshooting under Japans GIGA School initiative.
- Led investigation and resolution of app issues including Teams and OneDrive.
Food Logistics
Japan Air Self-Defense Force
03.2017 - 04.2020
- Managed inventory and food supply logistics on an airbase.
- Participated in and won 1st place in a national cooking competition (taste division).
- Conducted monthly security training exercises.
Sales Representative
Alpha Sekkei Co., Ltd.
06.2016 - 12.2016
- Conducted B2B sales through cold calls and field visits across Kanto and Kansai regions.
- Managed temporary staffing operations and facilitated client onboarding.
- Successfully secured 3 new corporate clients and managed 12+ staff.
Education
Some College (No Degree) - Law
Toin University of Yokohama
JapanSkills
- Ruby
- Java
- JavaScript
- TypeScript
- C#
- SQL
- Ruby on Rails
- React
- Nextjs
- Nodejs
- Git
- PostgreSQL
- Firebase
- Supabase
- UI/UX design
- REST API
- System architecture
- Agile development
Languages
- English: Beginner (Currently living and studying in Australia)
- Japanese: Native
Timeline
Software Engineer
ClockWiseSystem Inc.
01.2024 - Current
Customer Support & Web Marketing
Surflegend Inc.
08.2022 - 12.2023
IT Support & Helpdesk
RPC Inc.
01.2021 - 07.2022
Food Logistics
Japan Air Self-Defense Force
03.2017 - 04.2020
Sales Representative
Alpha Sekkei Co., Ltd.
06.2016 - 12.2016
Some College (No Degree) - Law
Toin University of Yokohama