SkillTrendLab
Skill · Machine learning · Foundations and problem-solving

Reinforcement Learning

Machine learning that learns a policy from reward signals.

2.7%
of core AI postings mention it
95
postings
59
companies

History starts on September 11, 2026. Movement needs a comparable later edition at least 30 days on.

Where it is mentioned most

Each row divides by that role's postings in this edition, highest share first.

Reading this edition

Postings in 7 role families mention Reinforcement Learning in this edition.

None of the 8 role families with a page of their own mentions Reinforcement Learning in one posting in five or more.

No role family with a page of its own mentions Reinforcement Learning at twice its share of all core AI postings or more.

How the readings are made: "more concentrated than overall" means that in a role family with a page of its own, at least 10 postings mention the skill and its share is at least 2 times its share of all core AI postings; "common" means at least 20% of a role's postings mention it. They describe the postings open in this edition, not a trend.

  1. AI Researcher6.7%
    4 of 60 postings · Sample below the page threshold; not read
  2. 9 of 151 postings
  3. 8 of 175 postings
  4. 11 of 321 postings
  5. 54 of 1,741 postings
  6. 2 of 225 postings
  7. 2 of 305 postings

Skills that appear with it

Each share divides by the postings that mention Reinforcement Learning: how many of them also mention each skill, grouped into three lenses.

Foundations and problem-solving

Categories: Languages, Machine learning, Data engineering, Databases, Methods and process

  1. Python83.2%
    Languages · 79 postings
  2. Machine learning · 63 postings
  3. Machine learning · 60 postings
  4. C++40.0%
    Languages · 38 postings
  5. Machine learning · 33 postings
  6. MLOps32.6%
    Machine learning · 31 postings
  7. Methods and process · 31 postings

Production and delivery

Categories: DevOps, Cloud, Tools

No skill in this group made the list.

Framework, LLM and domain signals

Categories: Frameworks, LLM applications, Domain knowledge, Office software

  1. PyTorch56.8%
    Frameworks · 54 postings
  2. LLM53.7%
    LLM applications · 51 postings
  3. Frameworks · 41 postings
  4. Domain knowledge · 40 postings
  5. LLM applications · 34 postings

Industries and places

Share of this skill's postings.

Industry
  1. Software & Internet
    25
    26.3%
  2. Electronics & Hardware
    25
    26.3%
  3. Professional Services
    21
    22.1%
  4. Finance & Insurance
    11
    11.6%
  5. Manufacturing
    6
    6.3%
  6. Healthcare & Biotech
    2
    2.1%
  7. Wholesale, Retail & E-commerce
    2
    2.1%
  8. Telecom, Media & Digital Content
    1
    1.1%
  9. Semiconductor
    1
    1.1%
  10. Consulting & Marketing Services
    1
    1.1%
Place
  1. Taipei
    46
    48.4%
  2. Hsinchu County
    20
    21.1%
  3. New Taipei
    10
    10.5%
  4. Hsinchu City
    5
    5.3%
  5. Taichung
    4
    4.2%
  6. Kaohsiung
    3
    3.2%
  7. Taoyuan
    2
    2.1%
  8. Pingtung
    1
    1.1%
  9. Yilan
    1
    1.1%
  10. Tainan
    1
    1.1%

Where this number is read from

Of the 95 postings, how many were found through the employer's own skill tags, the title, and the job description. A posting can carry more than one kind of evidence, so the three add up to more than the posting count.

  1. Employer's skill tags
    0
  2. Job title
    3
  3. Job description
    95
The data on this page
Data as of
September 11, 2026
Core AI postings this edition
3,523
Method version
2026.09.1

This page is not indexed yet: change needs a second edition.