Kotlin Experts in Switzerland
in minutes from over 15,000 CVs with the power of AI.Hire experts who build Android apps, JVM services, and Kotlin Multiplatform features, and who work well with Ktor, Gradle, and modern testing stacks. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Switzerland, who have recently used Kotlin
Frank Gulitz
Last position:
Agile Coach and Program Manager at Centris AG
The insurance application service provider in Switzerland intended to develop a multi-channel output system to support their customers on their digital enhancement journey.
- Established an Agile Release Train based on SAFe 6.0
- Trained all ART leadership
- Coached the development of the solution intent
- Established 5 teams in the ART. Developed the Epic and Feature Backlog for the team.
- Planned and coached 2 PI planning sessions
The insurance application service provider in Switzerland intended to transform their claims management BPO and IT team into an agile delivery organization.
- Established an Agile Release Train based on SAFe 6.0
- Trained all ART leadership
- Coached the development of the solution intent
- Established 2 teams in an ART.
- Developed the Epic and Feature Backlog for the team.
- Planned and coached 2 PI planning sessions
Urs Steger
Last position:
CargoMonitor App at MSR Electronics GmbH
MVP app for shock logger to monitor and analyze transport data via BLE as a Kotlin Multiplatform solution for Android and iOS.
Osman Tartoussi
Last position:
Senior Developer and Consultant at Federal Office for IT and Telecommunications BIT
IT consulting, analysis, architecture design, new and further development, code review, test automation, continuous integration and continuous delivery in the backend and frontend area.
Technology stack:
JAVA 21
Spring Boot 3
Spring Framework 6
Spring Rest
Spring Data
JPA
Postgres
Aurora Database
Typescript
OWASP
Renovatebot
Sonarqube
Prometheus
Grafana
Spring Security
Single SignOn
Keycloak
Angular 19
NgRx Redux
AWS ECS
AWS Cloudwatch
Terraform
Spacelift
GitOps
Docker
Junit
Maven
Jenkins Pipeline
GitHub
BitBucket
Nexus
Kafka
Conduktor
Kafdrop
OpenApi
Swagger
Scrum
SAFe
Jira
Confluence
Yuri Gladkov
Last position:
Senior Security Devops Engineer at Swisscom
- Implementation and maintenance of highly critical IAM solutions for B2B clients (SSO, MFA, SAML/OIDC, Entra ID, PIM/PAM)
- Security administration of Linux systems (CentOS, Red Hat) in Docker and Kubernetes environments
- Migration from Docker Swarm to Kubernetes
- Infrastructure automation with Terraform
- Planning and execution of risk assessments, threat modeling, and compliance reports
- Development and management of B2B applications (Java, REST/SOAP, Angular) and CI/CD pipelines (Python, Ansible, Jenkins, GitLab)
- Leading integration tests and UAT (Cucumber, Selenium, Katalon)
- Implementing monitoring and observability strategies with Grafana, Prometheus, and Splunk
- Integrating SAST tools like Snyk and SonarQube
- Release management and project coordination according to Scrum and SAFe
- Mentoring and technical support of junior team members
Ferran Siles Vila
Last position:
Senior Software Engineer at Personal time off / Private projects
- Took on and completed private/organizational projects.
- Continued self-training, e.g., in cloud and reactive architectures.
- Focused deepening of knowledge in areas like Kafka and modern Java 17 enterprise architectures.
Mateusz Lipczyński
Last position:
Project Lead Developer at PwC
- Took over the analyst and leading developer role in an innovative project helping detection of financial fraud in a major financial institution in Zurich with assistance of artificial intelligence
- Analyzed and implemented new modules, improved performance and user experience, elevated technical documentation and code quality to the standard required by the end client
- Technologies: Java 17, JavaFX, Spring Boot, concurrency, UX, Gradle, Impala
Christoph Janik
Last position:
Project management, Software engineering, Software architect, DevOps at Migros Genossenschafts Bund
- Greenfield project M-Zollmanager: Development of an internal platform to support users in booking requirement areas on line items in assessment notices.
- Greenfield project M-Deliveryplan: Development of an internal platform for planning and tracking deliveries in the international transport sector.
- Created functions to predict the estimated arrival time of container ships and goods from the port of loading to the port of destination, considering potential events.
- Developed the TrackAndTrace add-on for M-Deliveryplan to track and plan goods and containers.
- Built a generic AI chatbot for Migros app infrastructure, including ChatGPT integration and creating AI workflows with N8N.
- Developed AI assistants to automate repetitive tasks, such as creating release notes or processing Jira tasks based on N8N workflows.
- Further development and maintenance of the M-LFS, M-Vehicleaccess and M-Worklog apps.
- Used C#, Angular 18, DevOps practices, N8N, Kubernetes, Docker, Jira, Confluence and Azure.
- Ongoing project with continuous development of platforms and workflows.
Discover over 15,000 top freelancers
Statistics of experts using Kotlin
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
1.8 years
Positions per freelancer
17
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Insurance, Government and Administration
Certification focus areas
Information Technology, Business Intelligence, Operations
Bachelor's degree or higher
100%
Master's degree or higher
80%
Certifications per freelancer
1
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Switzerland 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 Switzerland using Kotlin
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
What Kotlin is
Kotlin is a modern language for the JVM, Android, server-side systems, and shared code across mobile and backend work. It is used for new product features, service layers, API clients, and gradual rewrites of older Java code. Teams often choose it for clear syntax, strong null safety, and solid interoperability with Java.
Where it fits
Kotlin shows up in products that need reliable mobile apps and maintainable backend logic. It is common in Android work, but also in services built with Spring Boot or Ktor, and in shared modules for Kotlin Multiplatform.
- Android app features and app modernization
- REST APIs and service layers
- Shared business logic for mobile and backend
- Migration from Java codebases
Ecosystem and tools
Strong specialists know the Kotlin compiler, Gradle, testing libraries, coroutines, and serialization tools. They also work comfortably with IntelliJ IDEA, Java dependencies, and build pipelines that keep delivery stable. On larger systems, they pay attention to code style, module boundaries, and safe asynchronous flows.
Why companies bring help
Companies bring in freelance Kotlin expertise when delivery is blocked by a hard migration, a failing build, or a feature that touches several layers at once. They also look for outside help when they need a short burst of senior experience for architecture decisions, performance work, or team mentoring.
- Java-to-Kotlin migration
- Android refactoring and feature work
- Backend services with coroutines
- Kotlin Multiplatform planning
What strong experts do
Good Kotlin professionals write code that is easy to read, easy to test, and safe in production. They use null safety well, keep asynchronous code under control, and avoid clever patterns that make maintenance harder. They also explain trade-offs clearly, which helps teams make better decisions.
Switzerland collaboration
In Switzerland, Kotlin experts often work with teams that expect clear communication, structured delivery, and smooth collaboration across locations. Remote work is common, especially for backend and mobile tasks, but on-site sessions can help with discovery, code reviews, and migration planning. Many teams prefer specialists who can fit into English-speaking delivery while staying close to local product needs.
Frequently asked questions
What clients ask us most about Kotlin — answered in short.
Kotlin is used for Android apps, backend services, shared business logic, and gradual Java migrations. Many teams choose it when they want safer code and less boilerplate without leaving the JVM ecosystem. It also fits well when one codebase needs to support mobile and server work together.
Kotlin is usually more concise than Java and gives stronger null safety out of the box. It still runs on the JVM and works with existing Java libraries, so teams can adopt it step by step. Java is still common for legacy systems, but Kotlin often speeds up new feature work and makes refactoring easier.
A company should hire a Kotlin specialist when a migration is stuck, a release is blocked, or the team needs help with a feature that touches multiple layers. Freelance support is also useful for short-term architecture review or to remove bottlenecks in Android or backend delivery. The best time is before technical debt turns into a schedule problem.
A strong Kotlin professional usually knows Android, Java, Gradle, testing, and either Spring Boot or Ktor for backend work. For asynchronous code, coroutines are important, and for shared code, Kotlin Multiplatform experience helps. Familiarity with Git, CI pipelines, and API design is also valuable.
No. Kotlin is popular on Android, but it is also widely used for server-side systems, shared libraries, and migration projects on the JVM. Many companies choose it because the same language can support app features, APIs, and internal tools.
A small feature task may need only one Kotlin specialist with solid practical experience. A migration, shared-code setup, or backend redesign usually needs someone who has shipped similar work before and can spot integration risks early. Depth matters more than a long list of tools.
Yes, Kotlin work is often well suited to remote collaboration, especially for backend, API, and Android tasks. Switzerland-based teams may still want on-site workshops for planning, pair sessions, or migration decisions. Clear written communication and disciplined reviews matter more than location.
Look for Kotlin code that is readable, tested, and easy to maintain. Strong specialists can explain why they used coroutines, how they handled nullability, and how they kept Java interoperability stable. Past work on similar systems is a better signal than broad claims.
The average hourly rate of freelancers in Switzerland who have used Kotlin in their recent projects is 119 €, which corresponds to a daily rate of about 953 € based on an 8-hour working day.
Of the freelancers in Switzerland who have used Kotlin in their recent projects, 100% hold at least a Bachelor's degree and 80% hold at least a Master's degree.
On average, freelancers in Switzerland who have used Kotlin in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Switzerland who have used Kotlin in their recent projects are German (100%), English (100%), and French (57%).
The most common industries among freelancers in Switzerland who have used Kotlin in their recent projects are Information Technology (100%), Insurance (71%), and Government and Administration (71%).
The most common business areas among freelancers in Switzerland who have used Kotlin in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (86%).
Main locations of FRATCH Experts, who have recently used Kotlin
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.
Countries:
Zurich Geneva Basel Bern Request a free demo
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Philipp Thomaschewski
FRATCH CEO
