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Takuma Yoshitani, Full-stack Developer in Bentonville, AR, United States
Takuma Yoshitani

Full-stack Developer in Bentonville, AR, United States

Member since January 17, 2022
Takuma is a full-stack software engineer with a master's in human-computer interaction and over three years of professional experience at global tech companies. He has experience in both the back-end and front-end of web development. Takuma is also familiar with A/B testing, UI/UX, and machine learning.
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Portfolio

  • Self-employed
    Ruby on Rails 3, Node.js, React, Python, Machine Learning...
  • Automation Anywhere
    TypeScript, JavaScript, React, Amazon Web Services (AWS)
  • Indeed
    JavaScript, Java, Spring, TypeScript, React

Experience

Location

Bentonville, AR, United States

Availability

Part-time

Preferred Environment

MacOS, Visual Studio Code, IntelliJ

The most amazing...

...project I've done is a full-stack invention of an exit-intent detection algorithm that achieved 92% accuracy.

Employment

  • Software Engineer

    2010 - PRESENT
    Self-employed
    • Led the development of mobile applications for the University of Tokyo's May Festival 2015-2016. The festival is one of the largest school festivals in Japan, with more than 100,000 visitors. The app had more than 20,000 downloads in total.
    • Developed a Twitter sentiment analysis tool for a small startup.
    • Created a PowerPoint search system using Elasticsearch and Python for a mid-sized human resource company.
    • Developed an eLearning system for medical students with Ruby on Rails.
    Technologies: Ruby on Rails 3, Node.js, React, Python, Machine Learning, Amazon Web Services (AWS), Google Cloud Platform (GCP), TypeScript, JavaScript

  • Senior Software Development Engineer | UI

    2020 - 2021
    Automation Anywhere
    • Designed and implemented the front-end and back-end API of X.509 client certificate authentication feature required for $10 million class contracts as the sole front-end developer on the team.
    • Led the front-end development of Discovery Bot, a new company product that discovers workflows and automates a personalized program for users. It was the winner of the Stevie Silver Award.
    • Coached and guided six software engineers on TypeScript and best practices through knowledge-sharing sessions and code reviews. Introduced TypeScript to two projects and fixed over 1,000 type safety issues.
    Technologies: TypeScript, JavaScript, React, Amazon Web Services (AWS)

  • Software Engineer

    2018 - 2020
    Indeed
    • Conducted more than 20 A/B testing experiments on the job search results page resulting in 10% increase in applications via recommended jobs, 4% increase in applications' starting rates, and 1.5% increase in recommended jobs click-through rates.
    • Created and implemented an exit-intent detection algorithm of 92% accuracy to prevent showing unnecessary coupon modals to employers posting jobs on Indeed.
    • Co-founded code quality guild to address code quality issues. Helped the security team introduce SonarQube to the build pipeline by setting up an exemplar with the company’s oldest and largest repositories.
    Technologies: JavaScript, Java, Spring, TypeScript, React

Experience

  • Discovery Bot
    https://www.automationanywhere.com/products/discovery-bot

    Led the front-end development for the initial launch of this product.

    Automation anywhere discovery bot is the only process discovery solution natively built into the leading intelligent automation platform.

    It accelerates and scales automation across the organization by recording user activities, discovering documenting business processes, helping analyze process variances to identify automation opportunities with the highest business impact, and generating bot blueprints to automate them. All in a single enterprise platform.

Skills

  • Languages

    JavaScript, Java, TypeScript, Python, SQL, Haskell, OCaml, Kotlin

  • Libraries/APIs

    React, Node.js

  • Other

    Writing & Editing, Machine Learning, Ubiquitous Computing, Research, Crowdsourcing, Algorithms, Data Structures, Nx

  • Frameworks

    Spring, Ruby on Rails 3

  • Tools

    IntelliJ

  • Paradigms

    Human-computer Interaction (HCI)

  • Platforms

    MacOS, Visual Studio Code, Arduino, Amazon Web Services (AWS), Google Cloud Platform (GCP)

  • Storage

    MySQL, PostgreSQL, MongoDB

Education

  • Master's Degree in Human-computer Interaction
    2016 - 2018
    The University of Tokyo - Tokyo, Japan
  • Bachelor's Degree in Information and Communication Engineering
    2013 - 2016
    The University of Tokyo - Tokyo, Japan

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