© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 1 © 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. Developer Advocate という仕事の⾯⽩み The fun part of Developer Advocate Yoshi Yamaguchi (@ymotongpoo) D E V R E L T A L K S ! I N T O K Y O # 1 Senior Developer Advocate Amazon Web Services Inc. 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 2 Thank you for having me here! 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 3 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 4 © 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. Who am I? Yoshi Yamaguchi (⼭⼝ 能迪) Senior Developer Advocate Amazon Web Services, Inc. Expertise • Observability • SRE @ymotongpoo 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 5 My career Apr, 2008 Infra Engineer, Oracle Japan Apr, 2011 Associate Technical Account Manager – YouTube, Google Oct, 2013 Developer Advocate – YouTube Feb, 2014 Senior Developer Advocate – Partnership Jul, 2018 Senior Developer Relations Engineer – Google Cloud Nov, 2024 Senior Developer Advocate, Amazon Web Services 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 6 What is Developer Advocate? 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 7 Developer Advocate? Evangelist? 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 8 “advocate” Cambridge Dictionary Oxford Learner’s Dictionaries https://www.oxfordlearnersdictionaries.com/definition/english/advocate_1 https://dictionary.cambridge.org/dictionary/english/advocate 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 9 Zero-th user da := users[0] 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 10 The bridge between developers and product Developers Product 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 11 Developer side activities • Planning and hosting developer meetups • Mingling with 1p/3p community members online/offline • connecting to key people of third party communities • regular sync with first party community leaders 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 12 eg. Go Conference 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 13 Prod-to-Devs activities • Talking at developer events/conferences • Publishing tech contents • Participation in major OSS projects and open standards org • Tech advisory to PR, GR, BD team, et al • Tech support to early access customers/developers 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 14 Devs-to-Prod activities • Aggregate feedback to the product from developers • report friction logs • filing detailed bug tickets • send patches to the product 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 15 Product side activities • Developing libraries/SDK • Developing OSS • Contribute to product design • regular discussion with PM, TL and SWE/SDE • reviewing PRD/Design Docs 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 16 Given all... Developer Advocate is able to • dive into the product • hear the true voices of users • involve multiple teams • be a part of communities 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 17 AWS Builder IDで • AWS Skill Builder の600以上の無料コース • Amazon Q Developer の利⽤ • Amazon CodeCatalyst の利⽤ • AWS builders コミュニティ への参加 が可能になります。 Do more with Builder ID 

© 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved. 18 Thank you! © 2025, Amazon Web Services, Inc. or its affiliates. All rights reserved.