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Kotlin freelance projects & contracts in Germany 2026

1.1% of the analysed German IT freelance listings name Kotlin – 578 projects, rank 96 of the 100 most requested IT skills. In October 2026 it was 0.8% (−0.3 percentage points from the month before). Kotlin is asked for most often in Java Fullstack Developer projects: they make up 26% of the engineering projects with Kotlin.

By . Data: 52,106 listings on German IT freelance project boards, May 2026 – October 2026. Published , last updated .

Is Kotlin required or nice to have?

72% of the listings with Kotlin name it as a required skill. That is about the median of the skills of this overview (69%). 19% name it as nice to have, 8.7% without a clear mark.

Kotlin demand by month

Share of listings with Kotlin per month of first publication, with the number of projects under each month; months with fewer than 1,000 projects are left out. Single months fluctuate.

  1. June 202680 of 7,653 projects1%
  2. July 2026168 of 9,884 projects1.7%
  3. August 202698 of 10,216 projects1%
  4. September 2026121 of 10,958 projects1.1%
  5. October 2026103 of 13,054 projects0.8%

Skills asked for together with Kotlin

The 15 skills that listings with Kotlin name most often besides it, as a share of those projects. Blue: typical for Kotlin, i.e. asked for at least 3 times as often as in projects overall; the tick shows the share across all projects.

Under each skill: its share across all projects.

  1. Javaall projects 6.6%55%
  2. Spring Bootall projects 3.7%51%
  3. CI/CDall projects 9.2%49%
  4. Kubernetesall projects 7.1%46%
  5. REST APIsall projects 7.3%40%
  6. Dockerall projects 4.8%33%
  7. Agile Methodsall projects 9.1%30%
  8. Microservicesall projects 2.9%30%
  9. TypeScriptall projects 4.3%30%
  10. Test Automationall projects 5%28%
  11. AWSall projects 4.1%27%
  12. DevOpsall projects 4%26%
  13. GitLab CI/CDall projects 2.5%24%
  14. Scrumall projects 8.1%24%
  15. Reactall projects 2.2%24%

Typical for Kotlin – asked for at least 3 times as often as in projects overall – are Spring Boot (51%), React (24%), Microservices (30%), GitLab CI/CD (24%), Java (55%), Docker (33%).

Frequent anyway and often part of it here: Scrum (24%).

Roles asking for Kotlin

96% of the projects with Kotlin are engineering projects (557 projects) – projects that build software or technical systems; the rest are e.g. consulting, project management or IT operations. The bars show the roles with the most of those projects and their share of them; 26% fit none of the major roles. Under each role: how many of its projects name Kotlin, and how often as required.

  1. Java Fullstack Developerin 18% of the role's projects · required 83%26%
  2. Java Backend Developerin 11% of the role's projects · required 76%25%
  3. Test Engineerin 2.1% of the role's projects · required 81%5.6%
  4. DevOps / Platform Engineerin 1.1% of the role's projects · required 63%4.3%
  5. ML / AI Engineerin 2% of the role's projects · required 61%3.2%
  6. React Developerin 4.3% of the role's projects · required 56%3.2%

Skills related to Kotlin

Skills of this overview that are asked for together with Kotlin much more often than chance would predict.

How to use the data

If Kotlin is in your profile, the blue skills often belong with it – name them if you have them. Projectmatch automatically matches new projects against your profile and shows for each project which of the required skills your profile covers. Browse current Kotlin projects or try it now.

All skills compared: Most in-demand IT skills in German freelance projects. Which skills form clusters: Which skills belong together? Which skills are in particular demand in Munich, Berlin, Frankfurt and other cities: IT freelance projects by city. How Kotlin compares with its alternatives: Python, Java, SQL: programming languages in demand.

Method

An AI model reads the requested skills from each project description, and a project's role from its title and skills; the figures are updated monthly. Details: method of the IT skills analysis.