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Senior Software Engineer, Applied Machine Learning at SmartNews

Every day, SmartNews analyzes millions of URLs to deliver the top articles that matter in near-real time to millions of users around the world. Our News Ranking team, along with our AI Foundation team, works on a range of recommendation and optimization problems, e.g. search ranking, collaborative filtering, personalized recommendation, diversification to deliver the world's quality information to the people who need it.


This is a hybrid of system engineering and machine learning role:

  • Write server-side production code for applications that are robust and efficient
  • Develop machine learning algorithms, combining with rule-based optimization to deliver improvement in product metrics
  • Build recommendation and ranking algorithms for news articles
  • Develop toolings to make ML engineers to be more productive
  • Lead medium sized projects to improve news ranking

Minimum Qualifications

  • 3+ years of experience in designing and implementing machine learning algorithms, and applying them to real world problems
  • Solid Machine Learning background and deep understanding of certain domain of machine learning techniques, especially in natural language processing, recommendation systems, computer visions
  • Strong software development skills with proven record of shipping changes to production that improved product metrics with machine learning technologies
  • Able to have deep end-to-end understanding of sophisticated ranking systems and can proactively detect problems and make improvement suggestions
  • Good written and spoken communication skills, can work across functional teams
  • Expert coding abilities in multiple programming languages (e.g. Java, C++, Python, Scala)
  • MS or BS in computer science, mathematics, physics or other quantitative fields

Preferred Qualifications

  • Experience with cloud based architecture (e.g. Amazon Web Services)
  • Strong interest in news media and our mission


  • SmartKitchen - Healthy lunch on a daily basis for free
  • ChikyuCoffee - Delicious coffee provided by our Barista every day
  • Event space - Free use for any kind of meet up
  • Foreign language development support
  • Various social insurance benefits included
  • Transportation coverage (Maximum 50,000 yen)

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