I'm Application Engineer in Rakuten.
Mainly I'm Backend Field as below
- BFF・API (Node.js, Nest.js, TypeORM (TypeScript) or SpringBoot (Java), Express, Socket.IO, Jest or JUnit+Mockito, Postman)
- API Performance Test (Gatling (Scala), k6)
- Batch processing (TypeScript, Node.js, REST API, Jest, Shell, Cron, csv handling)
- DB・Data extraction (Hadoop, BigQuery, HQL, MySQL, SQL, Cassandra)
- Frontend (React, Next.js, TypeScript, MobX, Zustand, Socket.IO)
- Load reduction (Redis, Kafka)
- Microservices (k8s)
- CI/CD (Jenkins)
- Production release, Operation, Alert handling (Kibana Alert -> PagerDuty)
- Log search, Monitoring (Kibana, Splunk, Grafana, Elasticsearch Logstash Kibana (ELK) )
- English Communication
- Database Specialist Examination 2024.10
- MSc in Computer Science (field of study : combinatorial optimization, quantum annealing, optimization calculation) 2022.3
- Certified ScrumMaster® (CSM®) 2022.10
- TOEIC 875 (L 470 R 405) 2021.5
- TypeScript : Use this language full stack
- C++ : Competitive programming, game production work movie
- Python : Data processing, Part-time Machine Learning job at university
- Java : API development using Spring boot in business and used R&D Intern
- C# : game production with Unity work movie
- Ruby : Create a verification tool as an intern using Ruby on Rails content
- Go, Rust : Basic skills and create simple api (gin, actix-web)
- SQL (HQL) : Use in business
- SML (fp language) : Used in college class
- Shell, AWK : Use in business
- PHP : Created an simple inventory management tool with MySQL (SQL)
- 「R-MesseのAI機能紹介とRAGを用いた今後の改善」 Rakuten Tech Conf 2024
- Rakuten Tech Conf 2024 in Sendai 運営
- 「Java+MySQLからTypeScript+Cassandraへの移行開発」 Rakuten Tech Conf 2023
- Rakuten Tech Conf 2023 in Sendai 運営
- 「(超主観)ゲーム開発とWeb開発の違い」 はじめてのIT勉強会 in 仙台(2023) 資料リンク
- 「マシュマロチャレンジでチームビルディング体験」 はじめてのIT勉強会 in 仙台(2022) 資料リンク
- Rakuten Tech Conf 2022 in Sendai 運営
- 「サークルで新感覚ボイスゲームを作った話」 Akatsuki Geek Live 2020-2021 Vol.1 資料リンク
- 「ボイストラベラー」 技育展 2020 チーム開発部門
https://baplisca.github.io/ (Due to moving React) -> https://baplisca.herokuapp.com/ (Due to abolishing freeplan heroku) -> https://baplisca.onrender.com/