Docker is the top trending technology as demand for DevOps expertise intensifies

Containers on a boat

6th July 2021 — CodinGame analysed more than 300,000 custom-built tests carried out by company recruiters on its platform CodinGame for Work, during the first half of 2021, to evaluate developers’ skill sets for specific tech roles.

Assessment tests are hands-on technical tests which provide employers with clear, concise candidate result reports, and make it easy to shortlist the best profiles. Candidates are invited to offer solutions to real-life problems they could face at work.

Analysing these tests, CodinGame was able to see which skills – technologies, frameworks and programming languages – were requested most often by recruiters and which were trending upwards the fastest based on growing demand from recruiters.

Looking specifically at trending skills, six of the top 10 fastest trending skills in 2021 to date, are technologies – Docker, QA, Linux, Jenkins, AWS and Kubernetes – that are all relevant to DevOps positions.

Docker is the top trending technology in 2021 according to recruiter testing. Docker is an open platform for developing, shipping and running applications, which is used in the deployment stage of the DevOps ecosystem.

The following list is the top 10 trending technologies and frameworks, based on recruiter testing, in the first six months of 2021:

  1. Docker
  2. QA
  3. Git
  4. Linux
  5. React
  6. Angular2+
  7. Jenkins
  8. Node.js
  9. AWS
  10. Kubernetes

Aude Barral, co-founder of developer recruitment platform CodinGame, comments: 

“When we surveyed global HR professionals at the end of 2020, almost half admitted that DevOps would be the hardest position to fill in 2021 due to exceptionally high demand.

“That demand hasn’t softened based on our recent analysis of assessment tests sent by recruiters to candidates through our platform, and the skill sets they were testing.

“More recruiters are testing developers for skills relevant to DevOps and this trend shows no sign of slowing in the near future, with a global switch to remote working driving demand.

“Hiring DevOps profiles remains complex for a lot of companies and HR professionals. Technical skill assessment platforms can be a real asset when hiring DevOps Engineers, especially for businesses that do not have in-house DevOps know-how. 

“The aim is to offer a set of tests with simulation-based exercises that allow recruiters to evaluate DevOps skills through concrete problems and a set of tools identical to the ones candidates would use once on the job.”



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About CodinGame

CodinGame is both a game-based training platform for developers and a powerful technical hiring suite for companies. Over 2 million passionate programmers from around the world sharpen their skills, for free, by playing games and solving puzzles on Companies looking to recruit and retain skilled programmers turn to CodinGame’s hiring solution, CodinGame for Work, to uncover hidden gems, streamline their processes, and delight their tech teams. CodinGame is best known for their online, pre-employment technical tests. Recruiters use these tests to quickly, efficiently and fairly shortlist developers based on their coding skills. CodinGame’s customers include Nasdaq, Electronic Arts, Samsung, and Facebook. Visit for more information.