Machine Learning Engineer

  • Tokyo
  • Remote OK - Worldwide
  • Full-time
  • January 31, 2024
Up to 11,000,000 JPY/yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Senior or above

Are you looking

  • To make meaningful changes at the fastest-growing tech company in Japan?
  • For a fair, highly flexible, inclusive working environment where anyone, regardless of their background, can make an impact?
  • To build the next bold idea in customer acquisition and revenue growth through conversational commerce technology
  • For a place where things are not just fast - but they happen now? 


We Are Zeals - “Designing conversations. Driving conversions.”

Zeals is not another chatbot. Our automated chat solution and conversational technology change how consumers purchase or act online. Zeals converts customers who appear "unengaged" to become "valuable" through designed chat on Messaging Apps. Using AI-powered, human-designed conversation flows across chat platforms, Zeals enables brands to build personalized, automated conversations with their consumers and develop a deeper understanding of their preferences while creating a delightful, seamless shopping experience. Our last 3 years have been phenomenal. We have captured the heart of many businesses in Japan, with over 480 enterprises relying on our chat commerce offering to boost their mobile business.

The goal is simple: to “revolutionize hospitality on the Internet” by unlocking digital customer service experiences that were limited to physical stores previously. 


Just Getting Started…

With more than 480 enterprise companies worldwide already utilizing our product, we are perfectly poised to seize market share and fuel exponential growth in the US market, with an eye on global expansion. Investors have taken note of our potential, leading us to recently secure nearly $40 million in funding, backed by Salesforce Ventures.


Your Typical Day With Us 

  • Research, design, and build machine learning systems for recommendation systems
  • Select appropriate algorithms and fine-tune models for optimal performance 
  • Evaluate model performance and suggest improvements where appropriate 
  • Integrate machine learning models into production 
  • Staying up-to-date with the latest machine learning technologies and methodologies 
  • Execute critical phases within the ML lifecycle 

What You’ll Need 

  • 5+ years of work experience as a Machine Learning Engineer or Data Scientist with a minimum of 2 years in a leadership role.
  • Solid Machine Learning background and deep understanding of certain domain of machine learning techniques, especially in recommendation systems
  • Machine Learning skills:
    • Familiarity with recommendation system and ranking algorithms
    • Knowledge on A/B testing, statistical sampling, and hypothesis testing
  • Development skills:
    • Strong proficiency in Python.
    • Familiarity with frameworks such as Tensorflow and Pytorch.
    • Experience building and deploying machine learning models in a production environment
    • Familiarity with model monitoring techniques and tools
  • Bachelor’s or Master’s degree in a quantitative field such as Computer Science, Mathematics, Statistics, or Machine Learning 


What Makes You Stand Out

  • Ph.D. in a quantitative field such as Computer Science, Mathematics, Statistics, or Machine Learning
  • Hands-on working experience in MLOps frameworks
  • Extensive knowledge, and ideally work experience, in recommendation systems, deep learning, and optimization methods and some experience in Natural Language Processing.
  • Familiarity with:
    • LLM
    • generative AI(esp. RAG)
    • customer experience and customer journey in e-commerce
  • Experience in Big Data technologies


Don’t just take our word for it 

Zeals has received the LinkedIn Top Startups award twice in a row. We believe this is a testament to our growth and ability to attract outstanding talents–who could potentially be your colleague! 


Ready to roll up our sleeves

We obsess over bringing hospitality to everyone–be it our customers or you! You’re an individual with unique needs. So, while we can’t attract you with ping-pong tables or all-you-can-drink espresso bars, we promise you a once-in-a-lifetime experience and co-workers that you can brag about to your friends, family, or anyone you meet the next time you go out for a party! As an employer, we are ready to roll up our sleeves and change the status quo if it means improving your experience!

  • Salary Range: competitive (performance review every 6 months)
  • Performance review: twice a year
  • Holidays: 10 days paid holidays during the first year, weekends off, national holidays, summer and winter break. 
  • Visa support: We sponsor visas for suitable candidates. You can expect full visa support from our professional HR team. 
  • Education support: Udemy, Frontend Masters
  • Flexible working: Highly flexible, remote-first international organization 
    • For Japanese residents: Work from anywhere, interim work from overseas, full flex time
  • Housing allowance (within 1.5KM away from the office)


Club activity allowance

  • Shuffle Lunch allowance (Cross department lunch) 
  • Zeals Bar (bi-monthly free-flow beer party)






中国で人気のwechat上には800万体のチャットボットがマーケティングに活用されており、アメリカでもConversational Commerceと呼ばれるチャットボットを活用してマーケティングを行うサービスが増えています。チャットコマースはまさにこの"会話を通じて商品を買っていただく"ことに特化したチャットコマースを提供する業界初のサービスです。








Zeals' policies during COVID-19 are as follows:

  • Overseas candidates are welcome to apply — and can even continue working from abroad!
  • There are currently no meetings that require your physical presence (especially during COVID-19)
  • For anyone who does relocate to Japan during COVID-19, Zeals will cover any costs for quarantining, testing etc.
View Zeals's company page

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Machine Learning Engineer at Zeals