Hiroki Nishino
テックリード at 弁護士ドットコム株式会社
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolHiroki Nishino is a Tech Lead with 11 years of experience building production-grade AI and large-scale engineering systems, currently leading the Legal Brain Agent at Bengo4.com, a legal-specialized AI launched in 2025. He designed the agent’s LLM + RAG architecture over a proprietary, patent-pending LegalGraph knowledge graph and pioneered citation-grounded generation to minimize hallucinations for regulated professional use. His background blends applied LLM engineering, application security (co-discovered CVE-2022-22978), and product delivery from roles at LINE and earlier startups. Certified in CISSP, PMP and IPA Advanced, he pairs technical depth with cross-functional collaboration alongside qualified lawyers to translate legal expertise into robust search, prompting, and evaluation pipelines. An active contributor to open-source—having extended LINE’s Java Messaging SDK—he combines research publications and patents with practical operational experience in AI systems.
11 years of coding experience
2 years of employment as a software developer
Associate(Engineering), Department of Global Information Technology, Associate(Engineering), Department of Global Information Technology at Kanazawa Technical CollegeBachelor(Information Science), College of Information Science, Bachelor(Information Science), College of Information Science at University of Tsukuba
Japanese, 日本手話, Chinese, Chinese
Github Skills (11)
javas10
line-api10
api10
sdk10
messaging-api10
spring10
apidoc10
java10
googlebot9
bots9
kotlin7
Programming languages (11)
Github contributions (5)
line/line-bot-sdk-java
Jul 2021 - Oct 2022
LINE Messaging API SDK for Java
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 11 reviews, 13 commits in 1 year 3 months
Contributions summary:Hiroki primarily contributed to the development of the LINE Messaging API SDK for Java. Their work focused on extending the SDK to support new features, specifically the implementation of RichMenuAlias APIs, RichMenuSwitchAction, and statistics per aggregation unit. Furthermore, the user enhanced the SDK by adding the functionality to handle multi-image metadata and sticker text. These changes indicate involvement in expanding the API's capabilities and aligning with the latest LINE platform features.
apiapi-sdkbotline-messaging-apisdk
tawAsh1/tawashi_portfolio
Feb 2019 - Feb 2021
Contributions:16 commits, 9 PRs, 9 pushes in 1 year 11 months
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