About

Experience

August 2023 ~ Present : Cloud Support Engineer at Amazon Web Services Japan GK
- When AWS Support receive customer inquiries, I reproduce the problem, identify the root cause, and provide the solutions. I primarily provide technical support for products such as RDS for MySQL and Aurora MySQL.
April 2022 ~ July 2023 : Cloud Support Associate at Amazon Web Services Japan GK

October 2019 ~ May 2020 : Software Development Engineer at Artill Corporation
- I worked on the development of a web application for buying and selling artwork. Specifically, I worked on front-end development using React and building a development environment using Docker and docker-compose.
May 2017 ~ April 2019 : Software Development Engineer at Osaka University Coop
- When received orders from Osaka University, I created web applications (EC sites, etc.) such as the Osaka University Foundation for the Future and the on-campus goods procurement system. The development of the web application was carried out by a team. In the projects I was in charge of, I mainly developed web applications using Angular 2 and the Django REST framework. I was responsible for both front-end and back-end development during the project. I also designed the DB scheme and did the PostgreSQL tuning.

April 2020 ~ March 2022 : Graduate School of Engineering at Osaka University
- Division of Electrical, Electronic, and Infocommunications Engineering
- Member of Inoue Lab
April 2016 ~ March 2020 : School of Engineering at Osaka University
- Division of Electronic and Information Engineering

Hayato Kiwata, Koji Igarashi, Noboru Yoshikane, “Control of SDN optical networks using public cloud container services,” IEICE Tech. Rep., vol. 121, no. 350, PN2021-41, pp. 46-50, Jan. 2022.
K. Igarashi, H. Kiwata, M. Kikuta and M. Shigihara, “Measurement of Laser Phase Noise for Ultra-Long Period of 0.8 Seconds with 800-ps Temporal Resolution Using Optical Coherent Detection with FPGA-Implemented Data Acquisition,” in Journal of Lightwave Technology, doi: 10.1109/JLT.2021.3101546.
H. Kiwata, M. Kikuta, M. Shigihara and K. Igarashi, “Ultra-long-time (0.8 s) characterization of laser phase noise with high temporal resolution (800 ps) based on heterodyne reception with FPGA data acquisition,” 2020 European Conference on Optical Communications (ECOC), 2020, pp. 1-4, doi: 10.1109/ECOC48923.2020.9333323.
H. Kiwata, M. Kikuta, M. Sigihara, and K. Igarashi, “High-speed (800 ps) and ultra-long-period (0.8 sec) characterization of laser phase noise by heterodyne detection with FPGA-implemented data acquisition,” in OSA Advanced Photonics Congress (AP) 2020 (IPR, NP, NOMA, Networks, PVLED, PSC, SPPCom, SOF), L. Caspani, A. Tauke-Pedretti, F. Leo, and B. Yang, eds., OSA Technical Digest (Optical Society of America, 2020), paper SpM3I.4, doi: 10.1364/SPPCOM.2020.SpM3I.4