CV | chck
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  • I've spent four years as a web engineer and seven years as a research engineer at an online advertising company. My research interests lie in computer vision, natural language processing, and machine learning. The immediate mission is to scale R&D in my company via engineering such as MLOps and ResearchOps.
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  • 2014 - Present

    Research Engineer

    Tokyo, Japan

    Python, Machine Learning, GCP, AWS
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  • 2017 - Present

    Research Engineering (AI Lab)

    Scale R&D in my company via engineering such as MLOps and ResearchOps

    NLP, Computer Vision, Python, TensorFlow, PyTorch, TypeScript, Kubernetes, Terraform, GCP, AWS

    2016 - 2017

    Backend Engineering and Data Science (iXamDrive)

    An operation platform for in-feed advertising. It can publish dynamic ads social media such as Facebook, Twitter, and LINE as official partner.

    Scala, Java, Finagle, Python, TensorFlow, AWS, GCP

    2015 - 2016

    Backend Engineering and Front Engineering (Game Tailor)

    A dynamic retargeting ad product for smartphone apps. Tailor-made ads generated based on each game user status such as game level, selected characters and log in frequency will be served to worldwide game users through social medias.

    Scala, MySQL, Aerospike, Apache Spark, RedShift, AWS

    2014 - 2015

    Backend Engineering and Front Engineering (GameLogic/Audience, Smalgo)

    An online advertising system as demand-side platform (DSP) to focus on mobile game publishers.

    Java, MySQL, Redis, Ruby on Rails, Angular, AWS
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  • 8-Dec, 2025

    Release Automation with Semantic Commits

    Introduce GitHub CI pipeline; generate release note, manage semantic versioning with conventional commits, and linter.

    17-Apr, 2025

    Skill Up Boot Camp for Research Scientists

    Skill up onboarding for researchers were held and materials are available.

    25-Dec, 2024

    User Embeddings from their skill set

    Attempts to reveal people skill sets based on their text (e.g., slack chats, source codes, papers, etc.).

    30-Jun, 2023

    Open-Sourced Our MLOps Training: How to Build Modern ML Workflows

    One-day MLOps course covering participants from container basics to building automated AWS workflows.

    13-Oct, 2021

    Easy-to-use Experiment Management Hands-on with MLflow in GKE

    Experimental management systems using kubernetes clusters for researchers.

    1-Jun, 2020

    MLOps2020: Start Small, Grow Big

    The effective use of MLOps tools such as Hydra, Sacred, MLflow, Kedro, Metaflow, Kubeflow, and Optuna is explained with a comparison of their features.

    5-Feb, 2019

    Tweet-based Matching System Technologies

    An installation work that extracts user features from their tweet and pre-questionnaires to realize a dialogue in an Augmented Reality space.

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