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* ChatGPT 4o translated * Some fix and add supplement * Fix supplement * Use proper nouns as is
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(comming soon...) | ||
# Resume | ||
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**The document is based on machine translation. In case of conflict between the translation and the original Japanese version, the Japanese version will prevail.** | ||
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As of May 21, 2024 | ||
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![ikuwow](ikuwow.webp) | ||
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Ikuo Degawa (@ikuwow) | ||
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Born in 1990, lives in Kanagawa, Japan | ||
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* Twitter: https://twitter.com/ikuwow | ||
* GitHub: https://github.com/ikuwow | ||
* Blog: https://queryok.ikuwow.com | ||
* Email: ikuwow(at)gmail.com | ||
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The latest version of this resume is available on GitHub: https://github.com/ikuwow/resume | ||
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## Skills | ||
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* Experience in SRE and DevOps for web applications | ||
* Building and maintaining CI/CD environments using CircleCI, TravisCI, GitHub Actions, etc. | ||
* Managing development projects using GitHub, etc. | ||
* Determining and implementing SLIs, setting SLOs | ||
* Supporting the structure of development teams and practicing Enabling SRE | ||
* Solving problems across applications and promoting projects | ||
* Leadership in incident response | ||
* Practicing SRE principles like 50% rule, post-mortems, etc. | ||
* Experience in building and managing infrastructure, managing middleware | ||
* Basic knowledge of networking and infrastructure technology | ||
* Utilizing cloud platforms like AWS, GCP | ||
* Building and operating infrastructure using IaC with Terraform, Ansible, Chef, etc. | ||
* Experience with Docker and Kubernetes in production environments | ||
* Designing, building, and operating microservice architectures with Kubernetes and Istio | ||
* Operating applications in a microservices environment | ||
* Designing, improving performance, and managing RDBs like PostgreSQL, MySQL | ||
* Building office networks | ||
* Backend development skills | ||
* Experience in programming languages like PHP, Ruby, Java, JavaScript | ||
* Experience with frameworks like CakePHP, Ruby on Rails, Spring | ||
* Frontend development skills | ||
* Experience in frontend development using HTML/CSS/JavaScript | ||
* Building and maintaining frontend projects with Sass, Webpack | ||
* Performance monitoring and improvement | ||
* Others | ||
* Building data analysis environments using Elasticsearch, Kibana, Redshift, Tableau, etc. | ||
* Experience in developing iOS applications with Swift | ||
* Image processing and audio processing programming with MATLAB and C | ||
* Customizing CMS like WordPress | ||
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<div class="page-break"></div> | ||
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## Capabilities | ||
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* Always acting with the project's or service's goals in mind | ||
* Solving problems with a view to overall optimization across job roles and technical domains | ||
* Conducting hands-on technical validation/PoC | ||
* Smooth asynchronous communication using GitHub, documentation tools, and messaging tools | ||
* Valuing morals and user value | ||
* Reading, writing, and listening in English | ||
* Contributing to OSS | ||
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## Work Experience | ||
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### ZOZO, Inc. | ||
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Worked as a full-time employee from December 2021 to April 2023 in a fully remote capacity | ||
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#### Platform Services SRE Block, Front SRE Block | ||
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* Designing, building, and operating Kubernetes infrastructure | ||
* Operating microservice applications on a service mesh using Istio | ||
* Operating MySQL and SQL Server | ||
* Operating Java and NodeJS applications | ||
* Managing SaaS like Sentry, Datadog, PagerDuty using Terraform | ||
* Ensuring service reliability based on SLOs | ||
* Building workflows to achieve parallel pipelines for monorepo using GitHub Actions | ||
* Expanding the use of Flagger, Flux | ||
* Adopting GitHub Projects | ||
* On-call duties, incident response | ||
* Mentoring new employees | ||
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#### Lead SRE for Core System Replacement | ||
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* Catching up on domain knowledge and translating it into requirements | ||
* Conducting PoC, designing, and building data integration methods using Kafka (Amazon MSK, etc.) | ||
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### TeamUp Inc. | ||
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Worked as a freelance engineer from July 2021 to June 2022 | ||
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#### Infrastructure setup and support for establishing development systems for 1-on-1 tool TeamUp | ||
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* Converting AWS environment to IaC using Terraform/Ansible | ||
* Setting up development systems using documentation management tools like esa.io, GitHub | ||
* Streamlining development flow using CircleCI, etc. | ||
* Replacing and maintaining AWS environment where the service runs | ||
* Deciding and implementing security requirements using AWS services | ||
* Supporting performance improvement of Ruby on Rails applications | ||
* Developing management features for Ruby on Rails applications | ||
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<div class="page-break"></div> | ||
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### Leverages, Inc. | ||
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Worked as a full-time employee from April 2015 to September 2017 | ||
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#### Development of engineer-oriented Q&A service "teratail" and others | ||
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* Developing and maintaining CakePHP applications | ||
* Designing and building public REST APIs | ||
* Developing the entire frontend for campaign pages | ||
* Setting up CI environment | ||
* Considering measures to achieve business goals | ||
* Building analysis infrastructure using Elasticsearch, Redshift, BigQuery, etc. | ||
* Migrating from VPC to GKE (Kubernetes) environment | ||
* Improving application performance overall | ||
* Introducing and connecting Mailchimp system with the application for newsletters | ||
* Introducing and managing Google's advertising system (Google Adwords) | ||
* Others | ||
* Designing, building, and managing internal networks | ||
* Writing content articles | ||
* Building and directing newsletter content | ||
* Participating in recruitment activities | ||
* Awarded Excellent Hacker Award in 2015 | ||
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### Slogan, Inc. | ||
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Worked as an intern from September 2013 to March 2015 | ||
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#### Maintenance of "Goodfind" related media and setting up internal networks | ||
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* Developing user-facing CakePHP applications | ||
* Developing admin-facing CakePHP applications | ||
* Replacing VPC environments using Chef, etc. | ||
* Building and maintaining office/office-to-office networks | ||
* Developing new iOS applications | ||
* Conducting seminars for student engineers | ||
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## Publications | ||
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* O'Reilly [進化的アーキテクチャ](https://www.oreilly.co.jp/books/9784873118567/) translation review, 2019 | ||
* SoftwareDesign series "アプリエンジニアのための[インフラ]入門", all 6 parts, 2016 | ||
* gihyo.jp [あとはコードを書くだけ,はじめに作る開発環境構築ベストプラクティス](https://gihyo.jp/dev/serial/01/howto-env-conf), 2016 | ||
* gihyo.jp [聞いたら一生の宝,プログラミングの基礎の基礎](https://gihyo.jp/dev/serial/01/js-foundation), (3rd, 5th, 7th parts), 2015 | ||
* Ikuo Degawa, Taichi Yoshida, Kazu Mishiba, Masaaki Ikehara, Single Image Super Resolution by l2 Approximation without Learning in International Workshop on Advanced Image Technology (IWAIT), Jan. 2014 | ||
* Ikuo Degawa, Kei Sato, and Masaaki Ikehara, Multipitch estimation and instrument recognition by exemplar-based sparse representation, Proc. of IEEE ACSSC 2013, Pacific Grove, CA, Nov. 2013. | ||
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## Certifications | ||
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* LPIC Level 2, 2018 | ||
* 日商簿記 (The Japan Chamber of Commerce and Industry Bookkeeping) Level 2, 2016 | ||
* 情報処理技術者試験 ネットワークスペシャリスト (Network Specialist Examination), 2015 | ||
* TOEIC Score 860, 2013 | ||
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## Education | ||
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* Graduated from Keio University Graduate School of Science and Technology, Department of Integrated Design Engineering, March 2015 | ||
* Graduated from Keio University Faculty of Science and Technology, Department of Electronics and Electrical Engineering, March 2013 |