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REST APIs freelance projects & contracts in Germany 2026

7.3% of the analysed German IT freelance listings name REST APIs – 3,823 projects, rank 5 of the 60 most requested IT skills. In October 2026 it was 6.9% (−0.7 percentage points from the month before). REST APIs is asked for most often in Java Backend Developer projects: they make up 20% of the engineering projects with REST APIs.

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

Is REST APIs required or nice to have?

79% of the listings with REST APIs name it as a required skill. That is more often than for most skills of this overview (median 69%). 7.9% name it as nice to have, 13% without a clear mark.

REST APIs demand by month

Share of listings with REST APIs 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 2026681 of 7,653 projects8.9%
  2. July 2026714 of 9,884 projects7.2%
  3. August 2026628 of 10,216 projects6.1%
  4. September 2026835 of 10,958 projects7.6%
  5. October 2026903 of 13,054 projects6.9%

Skills asked for together with REST APIs

The 15 skills that listings with REST APIs name most often besides it, as a share of those projects. Blue: typical for REST APIs, 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. CI/CDall projects 9.2%36%
  2. Javaall projects 6.6%35%
  3. Kubernetesall projects 7.1%27%
  4. TypeScriptall projects 4.3%27%
  5. Gitall projects 5.1%26%
  6. Dockerall projects 4.8%26%
  7. Spring Bootall projects 3.7%24%
  8. Scrumall projects 8.1%23%
  9. Agile Methodsall projects 9.1%21%
  10. Microservicesall projects 2.9%20%
  11. Test Automationall projects 5%19%
  12. Jiraall projects 8.5%19%
  13. SQLall projects 4.8%18%
  14. JavaScriptall projects 2.9%17%
  15. PostgreSQLall projects 2.9%16%

Typical for REST APIs – asked for at least 3 times as often as in projects overall – are Microservices (20%), Spring Boot (24%), TypeScript (27%), JavaScript (17%), PostgreSQL (16%), Docker (26%).

Frequent anyway and often part of it here: Scrum (23%), Agile Methods (21%), Jira (19%).

Roles asking for REST APIs

80% of the projects with REST APIs are engineering projects (3,062 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; 12% fit none of the major roles. Under each role: how many of its projects name REST APIs, and how often as required.

  1. Java Backend Developerin 49% of the role's projects · required 86%20%
  2. Java Fullstack Developerin 46% of the role's projects · required 89%12%
  3. C# / .NET Developerin 39% of the role's projects · required 80%7.8%
  4. Low-Code Platform Developerin 24% of the role's projects · required 86%6.8%
  5. React Developerin 45% of the role's projects · required 80%6.2%
  6. Angular Developerin 40% of the role's projects · required 72%5.5%
  7. Test Engineerin 11% of the role's projects · required 73%4.8%
  8. SAP Developerin 14% of the role's projects · required 77%4.7%

Skills related to REST APIs

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

How to use the data

If REST APIs 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 REST APIs 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.

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.