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Jobs→株式会社hootfolio→R&D Engineer (Contact: toshi)

R&D Engineer (Contact: toshi)English summary from Japanese

株式会社hootfolio

✓ Detailed
Salary
想定年収:600万円〜1000万円
Location
東京都日本橋オフィス、全国主要都市のシェアオフィス拠点も利用可能(リモートワーク可)
Job Type
Full-time
Work Style
9:00〜18:00
Apply on HERP

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

We are seeking an R&D Engineer to design and develop core intellectual processing for our Causal Inference AI SaaS product. This role involves translating research in causal inference, statistics, and machine learning into practical product features, algorithms, and intellectual property.

Must-haves

  • Practical experience in algorithm development, data analysis, and machine learning model development using Python.
  • Fundamental understanding of statistics, machine learning, and mathematical modeling.
  • Experience designing analytical logic and evaluation metrics based on product requirements.
  • Experience translating academic papers and technical literature into practical algorithm specifications.

Nice-to-haves

  • Experience collaborating with engineers, product managers, and business stakeholders to translate technical complexities into product specifications.
  • Knowledge/experience in causal inference, causal discovery, causal effect estimation, and structural equation modeling.
  • Experience designing algorithms for recommendation, ranking, scoring, and decision support.
  • Experience designing and developing analytical support features using LLMs / AI agents.
  • Experience in productizing algorithm features for B2B SaaS or business support products.
  • Experience with production-ready implementation including exception handling, log design, testing, and performance improvement.

Tech stack

PythonCausal AIMachine LearningStatisticsLLMAI Agent

Work style

Hybrid work possible. Location: Nihonbashi office, Tokyo, with access to co-working spaces in major cities nationwide.

Other notes

Salary: Expected annual income of 6 million to 10 million JPY (based on experience and abilities). Stock option system available.

About the Company

株式会社hootfolio

Headquarters
東京都港区芝5丁目32-12
Founded
2024-08
Visit Website
Posted8/26/2026
Updated2026/08/26 15:37
Sourceherp