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MockK Experts in Germany

matched in minutes from over 15,000 CVs with the power of AI.

Hire experts who use MockK to write focused unit tests, isolate Kotlin services, and verify coroutines, flows, and suspend functions with confidence. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Germany, who have recently used MockK

Verified expert

Matthias E.

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Lead Android Developer

Seevetal
Matthias E.

Last position:

Lead Android Developer at Star Finanz-Software Entwicklung und Vertriebs GmbH

  • Further development of the Android app "StarMoney"
  • Major XML to Compose redesigns
  • Introduction of new technologies and architecture
  • Implementation of instant bank transfer
  • Development following the agile Scrum process
Verified expert

Rafael K.

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Senior Android Developer / Team-Lead

Dortmund
Rafael K.

Last position:

Senior Android Developer / Team-Lead at IBM Deutschland

  • Further development and release support for a white-label ePA component for health insurance companies
  • Technologies: Android (Kotlin), Kotlin Multiplatform, Coroutines, Jetpack Compose, MVVM, StateFlow, Gradle, ProGuard
Verified expert

Daniel W.

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Senior Developer / Deputy Project Lead

Münster
Daniel W.

Last position:

Senior Developer / Deputy Project Lead at Finanz Informatik GmbH & Co. KG

  • Worked as a Senior Developer

  • Worked as a Deputy Project Lead

  • Technologies: Java (Spring), React

  • Environment: OSPlus, MKP

  • Developed various standalone tools

  • Developed unit and Selenium tests

  • Integrated REST APIs

  • Full-stack development

  • Managed and planned a project to migrate an existing application to a new software stack

  • Agile project approach

Verified expert

Wolfram R.

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Backend and Flutter App Developer

Münster
Wolfram R.

Last position:

Backend and Flutter App Developer at WWU Münster

  • Further development of the existing citizen science app with Flutter for Android and iOS to integrate new features.
  • Updated the backend, including database migration.
  • Used Android, iOS, Flutter, Dart, Riverpod, Drift (migration from moor), flutter_local_notifications, home_widget, flutter_markdown, and flutter_workmanager.
  • Backend development with Spring Boot, Kotlin, Kotlin Flow, GraalVM, PostgreSQL, and Docker.
  • Used Firebase App Testing, Testflight, as well as Google Play Console and App Store upload.

Discover over 15,000 top freelancers

Statistics of experts using MockK

Aggregated from the professional profiles of matched freelancers.

Experience

13 years

MockK experts in Germany have 13 years of professional experience on average.

Position duration

1.7 years

MockK experts in Germany stay in a single position for 1.7 years on average.

Positions per freelancer

13

MockK experts in Germany have completed 13 positions on average over the course of their careers.

Top business areas

Information Technology, Product Development, Quality Assurance

MockK experts in Germany have gathered most of their hands-on project experience in Information Technology, Product Development, and Quality Assurance.

Top industries

Insurance, Banking and Finance, Information Technology

MockK experts in Germany are most in demand in Insurance, Banking and Finance, and Information Technology.

Certification focus areas

Information Technology, Product Development, Business Intelligence

MockK experts in Germany earn their certifications most often in Information Technology, Product Development, and Business Intelligence.

Bachelor's degree or higher

75%

75% of MockK experts in Germany hold at least a Bachelor's degree.

Master's degree or higher

50%

50% of MockK experts in Germany hold at least a Master's degree.

Certifications per freelancer

4

MockK experts in Germany hold 4 professional certifications on average.

Most common languages

German, English, Spanish

MockK experts in Germany most often speak German, English, and Spanish.

Speak two or more languages

100%

100% of MockK experts in Germany speak two or more languages.

Based on our profile pool as of 19 Sep 2026.

Daily rate distribution

0 1 2 3 4
One of the MockK experts in Germany charges less than €720 per day.
One of the MockK experts in Germany charges between €720 and €760 per day.
One of the MockK experts in Germany charges between €760 and €800 per day.
2 of the MockK experts in Germany charge between €800 and €840 per day.
One of the MockK experts in Germany charges €880 or more per day.
<€720 €720-​760 €760-​800 €800-​840 €880+

The chart shows how the daily rates of freelancers in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.

Average rates of experts in Germany using MockK

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 770 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 780 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

MockK experts industry focus

See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.

  • Insurance (100%)
  • Banking and Finance (83%)
  • Information Technology (83%)
  • Transportation (50%)
  • Manufacturing (50%)
  • Retail (50%)
  • Automotive (33%)
  • Education (33%)

Please note that freelancers can work across multiple industries, so percentages overlap.

About the technology

Kotlin testing

MockK is a Kotlin mocking library used to isolate services, repositories, clients, and other dependencies in tests. It is a common choice when teams need clear unit tests for Kotlin code, especially where Java-style mocking feels awkward.

What it covers

  • Mocking interfaces, classes, and top-level functions
  • Verifying calls, arguments, and interaction order
  • Testing coroutines, suspend functions, and flows
  • Stubbing callbacks, extension functions, and static behavior

Strong specialists use MockK to keep tests readable and stable. They know when to mock and when to use real fixtures, so test suites stay useful instead of brittle.

Tooling around it

MockK often sits beside JUnit, Kotlin test libraries, Gradle, and CI pipelines. In mixed codebases, experts also work with Mockito, Spring Boot test setups, and coroutine test tools when the wider stack needs it.

When companies need help

  • A Kotlin project has hard-to-test dependencies
  • Existing tests are noisy, fragile, or slow
  • Suspend functions or flows need proper coverage
  • The team is moving from Mockito to MockK

In Germany, companies often bring in freelance specialists for short test-repair work, a new service module, or support during a Kotlin migration. Remote collaboration works well when the codebase is shared clearly and the test intent is documented.

What good experts do

Good MockK professionals write tests that reflect real behavior, not just mock setup. They understand Kotlin language features, test design, and boundaries between unit, integration, and contract tests.

Signals of quality

Look for clean assertions, minimal setup, and mocks used only where they add value. A strong MockK expert can explain why a test is needed, how it fails, and how to keep it maintainable over time.

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Frequently asked questions

Not sure where to start with MockK? These answers cover the essentials.

MockK is used to isolate dependencies in Kotlin tests so teams can verify behavior without touching databases, network calls, or other services. It is especially useful for unit tests around services, clients, repositories, and coroutine-based code. Many teams choose it when they want mocking that fits Kotlin syntax and language features more naturally than Java-first tools.

MockK is built with Kotlin in mind, so it handles features like suspend functions, top-level functions, and extension functions more naturally. Mockito is still common in mixed Java and Kotlin codebases, especially where a team already knows it well. For Kotlin-heavy projects, many specialists prefer MockK because the test code usually reads more cleanly.

A strong MockK specialist should also know JUnit, Kotlin test patterns, and coroutine testing. In real projects, they often work with Gradle, Spring Boot, and CI pipelines as well. Good judgment matters too, because the best test suites avoid over-mocking and keep a clear boundary between unit and integration tests.

Projects need MockK expertise when the test suite has become hard to maintain, when Kotlin code is growing quickly, or when developers need help testing complex dependencies. It is also valuable during migration work, such as moving tests from Mockito to Kotlin-native mocking patterns. A freelancer can usually help with one module, a service layer, or a broader test strategy.

Yes, MockK work is usually well suited to remote collaboration in Germany because test tasks can be reviewed directly in the codebase. Clear tickets, access to failing tests, and fast feedback from the team are more important than being in the same room. On-site work can still help during workshops or migration planning, but it is rarely required for day-to-day test implementation.

Ask which kinds of Kotlin code the MockK expert has tested before, and whether they have worked with coroutines, flows, and suspend functions. It also helps to ask how they decide what to mock and what to keep real. Good answers should focus on test design, maintainability, and the failures they have fixed, not on tool features alone.

No, MockK is most common in unit tests, but it can also support broader test setup when dependencies need to be controlled. Many specialists use it alongside integration tests rather than instead of them. The key is to avoid using mocks where a real test fixture would give more reliable coverage.

A good MockK professional writes tests that are easy to read, easy to maintain, and focused on behavior. Look for clean setup, limited use of stubs, and clear explanations for why each mock exists. If the tests feel simpler after their work, and failures point to real issues instead of fragile setup, that is a strong sign of quality.

The average hourly rate of freelancers in Germany who have used MockK in their recent projects is 96 €, which corresponds to a daily rate of about 770 € based on an 8-hour working day.

Of the freelancers in Germany who have used MockK in their recent projects, 75% hold at least a Bachelor's degree and 50% hold at least a Master's degree.

On average, freelancers in Germany who have used MockK in their recent projects have 13 years of professional experience, with a single engagement typically lasting around 1.7 years.

The most common languages among freelancers in Germany who have used MockK in their recent projects are German (100%), English (100%), and Spanish (17%).

The most common industries among freelancers in Germany who have used MockK in their recent projects are Insurance (100%), Banking and Finance (83%), and Information Technology (83%).

The most common business areas among freelancers in Germany who have used MockK in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (67%).

Main locations of FRATCH Experts, who have recently used MockK

Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.

Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg

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