Kotlin Multiplatform Experts in Germany
matched in minutes by AIHire experts who share business logic across Android, iOS, desktop and backend applications, using Kotlin Multiplatform, Compose Multiplatform and native platform APIs. FRATCH matches you quickly with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Germany, who have recently used Kotlin Multiplatform
Dorin L.
Last position:
Release Train Engineer, Program Lead & Transformation Consultant - Freelancer at Telefónica Germany
- Transformation Consultant, Release Train Engineer and Program Lead – responsible for the new Way of Working in the Open Gateway Program; optimizing the flow of value by ensuring the ART events and artifacts function correctly, including the Open Gateway Release Train Kanban, Inspect & Adapt (I&A) workshop, ART Sync Meetings, and PI Planning to ensure stakeholder alignment;
- Coaching and guiding the Product Owners, Business Owners, Product Management, Program Managers, Leaders, Tribe Architect
- Coaching the OGW Core Team (cross functional) within the OGW Program and developing optimization measures in their transformation process;
- Facilitating and working actively towards the creation of the Definition of Ready (DoR) and the product Definition of Done (DoD);
- Introducing knowledge sharing workshops and grow the agile engineering practices;
- Hold Team lift-off workshops;
- Help the group to become a team by providing system team coaching and multifunctional learning;
- Facilitate, decision making, feedback loops for learning new skills and practices
Tools: JIRA, Confluence, MS Teams, Miro
Cristian P.
Last position:
iOS Team Lead at Qlaunch Gmbh
- Contributed to the architecture design process, resulting in scalable and maintainable solutions for complex projects.
- Enhanced app performance by optimizing code and implementing efficient algorithms.
- Stayed current with industry trends to ensure implementation of best practices in app development.
- Led a team of iOS developers for timely completion of projects and achieving client satisfaction.
- Translated basic design plans into full iOS app frameworks, delegating project components to appropriate team members.
- Estimated work hours and tracked progress using Scrum methodology.
Ben S.
Last position:
AI Trainer & Data Annotator at Scale AI
- RLHF & Model Evaluation: Evaluated, ranked, and refined Large Language Model (LLM) responses based on accuracy, reasoning quality, safety guidelines, and factual correctness.
- Data Annotation & Prompt Engineering: Created high-complexity prompts, edge-case scenarios, and gold-standard reference answers to train and fine-tune generative AI models.
- Quality Assurance & Verification: Conducted rigorous fact-checking, logical consistency validation, and multi-turn response optimization.
Matthias Z.
Last position:
Senior Flutter Developer at Materna
- Developed a Flutter app for eID ID card logins
- Focus: Flutter, iOS, eID, AusweisAppSDK, Mason, Keycloak, Agentic Coding, Arc42, Jenkins
Jonas D.
Last position:
CEO at softwarebees GmbH
Umer D.
Last position:
Activation and Vocational Integration Program with Integrated Language Support at Berlitz
- Intensive language course with a focus on professional language content.
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
Burak C.
Last position:
Senior Android Developer at Awesome Technologies GmbH
- Optimized the Amp healthcare app alongside a senior developer, specifically enhancing data caching mechanisms which led to a 25% improvement in load times.
- Applied MVI architecture, resulting in a 30% decrease in bugs and streamlining testing processes.
- Implemented CI/CD with Bitrise, reducing deployment sizes from 120MB to 104MB.
- Led the migration of 40% of the Java codebase to Kotlin.
- Achieved 85% unit test coverage.
Jan K.
Last position:
Software Architect: Training Platform for IT Career Changers at appvanced
- Mobile: Kotlin Multiplatform (KMP), Kotlin, Swift, SwiftUI, Jetpack Compose, Ktor, Room, Koin
- Backend: Spring Boot, GCP Cloud Run, GCP Load Balancer, GCP Eventarc
- Planned and developed a cloud backend architecture with Google Cloud Platform
- Developed a cross-platform architecture with Kotlin Multiplatform (KMP)
- Tech lead for comprehensive large project including webshop, two apps and omnichannel backend
M Samy H.
Last position:
Android Developer at Check24 GmbH
- Developed and maintained the large-scale Check24 car insurance native Android app serving millions of users using Jetpack Compose.
- Owned the end-to-end implementation of new features, including planning, development, and delivery in an Agile/Scrum environment.
- Refactored legacy Java code into a modern Compose architecture, improving maintainability and long-term scalability.
- Performed code reviews for team members via Bitbucket, ensuring code quality, architectural consistency, and Kotlin best practices.
Yodgorbek K.
Last position:
Android Developer at Mein Artz
- Led the development of a doctor scheduling Android app, integrating Jetpack Compose and Kotlin Multiplatform, achieving a 30% performance improvement.
- Implemented complex UI components, ensuring 99.8% crash-free user sessions.
- Seamlessly integrated Compose UI with existing View-based components.
- Optimized API calls, reducing load times by 20%.
- Tech Stack: Kotlin, Jetpack Compose, KMM, MVVM, Koin, Firebase, Stripe API, Crashlytics
Anton K.
Last position:
Senior iOS Engineer at HelloFresh SE
- Spearheaded development of the Experimentation Library, starting from writing RFC towards integration and support of the feature teams
- Spiked the possibility of using Kotlin Multiplatform for Experimentation Library to share implementation with Android
- Designed, developed, and iteratively integrated a new Data Layer, which unblocked and improved the development speed of the feature teams
- Organized workshop about Swift Concurrency to improve knowledge amongst iOS engineers and became a go-to person for related questions
- Completed overhaul of the existing CI configuration to make it more maintainable by big team
- Incorporated Bash script linter to harden CI and Utils scripts for iOS project
- Spiked Tuist as an option to integrate modularized features with 500+
- Maintained tooling to identify UI Tests ownership with custom Swift CLI and native SwiftLint rule
- Provided support to other teams on uncommon architecture questions
- Actively participated in shaping development culture within the team and across the whole iOS chapter
- Used technologies: Swift, SwiftUI, Swift Concurrency, Swift Package Manager, Bash, Git, GitHub Actions, Bitrise
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.
Anton A.
Last position:
Freelance Software Developer at Freelance Software Developer
- Developed the Chrome extension mailsome.ai for AI-powered email reply generation
- Used OpenAI API, Stripe, Node.js, TypeScript
Discover over 15,000 top freelancers
Statistics of experts using Kotlin Multiplatform
Aggregated from the professional profiles of matched freelancers.
Experience
13 years
Position duration
2 years
Positions per freelancer
9
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
92%
Master's degree or higher
33%
Certifications per freelancer
2
Most common languages
German, English, Russian
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
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 Kotlin Multiplatform
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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.
Kotlin Multiplatform experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Healthcare (64%)
- Automotive (57%)
- Food and Beverage (43%)
- Insurance (43%)
- Media and Entertainment (43%)
- Education (36%)
- Transportation (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Kotlin Multiplatform is
Kotlin Multiplatform, often shortened to KMP, lets teams share Kotlin code across Android, iOS, desktop, web and backend targets while keeping platform-specific access where it matters. It is designed for gradual adoption, so a product can begin with shared domain logic, networking or data access instead of rewriting an entire application.
What it builds
KMP is used for mobile products that need consistent rules across Android and iOS without forcing identical user interfaces. It also supports shared SDKs, internal tools, connected-device applications and Kotlin-based services.
- Shared business logic for Android and iOS
- Cross-platform data, networking and validation layers
- Mobile applications with native or shared user interfaces
- Reusable libraries for product teams and partner integrations
Ecosystem and tooling
Strong specialists work with Kotlin, Gradle, coroutines, serialization and established testing practices. They may use Compose Multiplatform for shared interfaces, while also handling Swift, SwiftUI, UIKit, Android SDK APIs and platform-specific dependency injection. CI pipelines must build, test and publish each target reliably.
When companies need expertise
Freelance support is useful when an existing Android or iOS product needs shared capabilities without a risky full migration. It also helps teams validate a KMP architecture, create a reusable library or resolve build and release issues across multiple targets.
- Reduce duplicated domain and data-layer code
- Plan a migration from native applications
- Connect shared Kotlin modules to existing platform code
- Stabilize Gradle, Xcode and continuous integration workflows
What strong professionals deliver
Experienced professionals define clear boundaries between shared and native code. They consider lifecycle behavior, threading, memory management, platform conventions and offline data from the start. Their deliverables include maintainable modules, test coverage, release documentation and an architecture that the in-house team can extend.
Germany-based collaboration
KMP work often spans product, mobile and backend teams, making communication and documentation as important as code. Professionals in Germany can support remote delivery across locations or collaborate on-site when workshops, platform testing or close coordination with a local product team are needed. English is common in international teams, while German may help in stakeholder-facing work.
Frequently asked questions
Need clarity? These are the questions we hear most often about Kotlin Multiplatform.
Kotlin Multiplatform is used to share business logic, networking, persistence and validation across Android, iOS, desktop, web and backend targets. Teams can keep native interfaces or share them with Compose Multiplatform, depending on product needs.
Kotlin Multiplatform emphasizes shared Kotlin modules while allowing native platform code and interfaces to remain in place. Flutter and React Native usually center on a shared UI runtime, so the right choice depends on the desired native behavior, team skills, performance needs and existing codebase.
A strong Kotlin Multiplatform specialist usually understands Android SDK, Swift, SwiftUI or UIKit, Gradle and Kotlin coroutines. Experience with Compose Multiplatform, SQLDelight, networking libraries, automated testing and mobile release processes is also valuable.
The required background depends on the scope and the condition of the existing applications. For a migration or shared mobile architecture, look for someone who has shipped KMP modules to production and can explain trade-offs between common and platform-specific code.
Yes. Kotlin Multiplatform work is well suited to remote collaboration through shared repositories, continuous integration and documented architecture decisions. On-site sessions in Germany can still be useful for discovery workshops, device testing and coordination with product teams.
A Kotlin Multiplatform project may benefit from Compose Multiplatform when the product needs consistent screens and the team accepts a shared UI approach. Native interfaces can be preferable when platform conventions, accessibility behavior or existing design systems are especially important.
Ask a Kotlin Multiplatform professional to describe a real module structure, testing approach and release workflow. Good answers cover dependency boundaries, platform-specific escape hatches, Gradle maintenance, concurrency and how the shared code will be owned by the team after delivery.
Common risks include sharing code that should stay native, underestimating build complexity and overlooking differences in lifecycle, permissions or platform APIs. An experienced Kotlin Multiplatform specialist identifies these boundaries early and proposes a staged migration with measurable technical outcomes.
The average hourly rate of freelancers in Germany who have used Kotlin Multiplatform in their recent projects is 81 €, which corresponds to a daily rate of about 651 € based on an 8-hour working day.
Of the freelancers in Germany who have used Kotlin Multiplatform in their recent projects, 92% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Germany who have used Kotlin Multiplatform in their recent projects have 13 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Germany who have used Kotlin Multiplatform in their recent projects are German (93%), English (93%), and Russian (21%).
The most common industries among freelancers in Germany who have used Kotlin Multiplatform in their recent projects are Information Technology (100%), Healthcare (64%), and Automotive (57%).
The most common business areas among freelancers in Germany who have used Kotlin Multiplatform in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (57%).
Main locations of FRATCH Experts, who have recently used Kotlin Multiplatform
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 Request a free demo
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Philipp Thomaschewski
FRATCH CEO
