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SmartNews

Machine Learning Engineer, Ads Ranking

SmartNews

. Develop and optimize core algorithms for ad targeting, ranking, bidding, and auctions .

Posted 11/12/2026full-timeShibuya • JapanMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in developing and optimizing algorithms for ad targeting and ranking, with a strong foundation in programming and machine learning concepts. Capable of collaborating effectively with cross-functional teams to enhance ad performance and relevance.

Highest-signal resume keywords
Algorithm DevelopmentMachine Learning ConceptsProgramming Languages (Python, Java, C++)Analytical ThinkingDigital Ad Ecosystem Knowledge

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Algorithm OptimizationProgramming (Python, Java, C++)Machine LearningStatistical AnalysisProblem-Solving
Soft Skills
Analytical ThinkingAdaptabilityCollaboration
Certifications & Qualifications
BS Degree in Computer Science or Related FieldM.S. or Ph.D. in Relevant Major
Industry Keywords
Ad TargetingRanking SystemsBidding AlgorithmsDigital AdvertisingLarge-Scale ML Systems

Tech Stack

Tools & technologies
JavaPythonC++

About the role

Key responsibilities & impact
  • Develop and optimize core algorithms for ad targeting, ranking, bidding, and auctions
  • Work with backend engineers to develop a highly scalable, high-performance, and reliable ranking and delivery system
  • Collaborate with product managers, product specialists, and sales to build solutions addressing advertisers’ needs
  • Support SmartNews’s ads business by improving ad relevance, profitability, sustainability, performance, and revenue

Requirements

What you’ll need
  • BS degree or higher in Computer Science, Computer Engineering, or a related field (Physics, Mathematics, etc.)
  • Solid programming fundamentals with experience in at least one programming language (e.g., Python, Java, C++)
  • Familiarity with machine learning concepts and algorithms, with a strong interest in applying them to real-world problems
  • Good problem-solving skills and a willingness to learn and adapt to complex systems
  • Strong analytical thinking and basic understanding of statistical concepts
  • Proficiency in business-level English
  • M.S. or Ph.D. in a relevant major is a nice-to-have
  • Proven research skills, demonstrated through publications in top conferences or involvement in impactful research projects is a nice-to-have
  • Internship or project experience related to large-scale ML systems is a nice-to-have
  • Basic knowledge or interest in the digital ad ecosystem is a nice-to-have

Benefits

Comp & perks
  • All healthcare and social insurance required by the Japanese labor law, plus annual health check
  • Visa sponsorship and overseas relocation support available for eligible candidates