Android Experts in Cologne
matched in minutes from over 15,000 CVsHire experts who deliver Android apps for phones, tablets, wearables and connected devices, with strong command of Kotlin, Jetpack Compose, Android SDK and Google Play releases. FRATCH matches you quickly with vetted, available freelancers who fit your project precisely.
Meet FRATCH Experts in Cologne, who have recently used Android
Christoph S.
Last position:
Test Manager at Logistics
- Coordination and planning, execution, documentation, and analysis of test cases
- Development of test concepts considering best practices (e.g., test pyramid) with a focus on reliable, automatable test runs
- Implementation and maintenance of test cases according to the test concepts
- Technologies: Citrix Workspace, Shopify, Jira, Xray, MS Teams, MS SharePoint, Confluence, MS Office 365
Eberhart N.
Last position:
IT Project Lead at Uniper.energy
Project: Rollout of new infrastructure components
- Defined and managed the implementation of an overarching management framework with clear roles and responsibilities as part of the hardware rollout.
- Designed and established governance and control mechanisms, including the development of compliance requirements and processes for continuous quality assurance, supported by ServiceNow.
- Coordinated technical activities between service, infrastructure and specialist teams to ensure the smooth delivery and commissioning of printers and notebooks.
- Created a detailed rollout plan with specific timelines, milestones and responsibilities.
- Managed the procurement, delivery, testing, configuration, installation and on-site commissioning of hardware, including integration into existing IT systems.
- Established and continuously optimized processes for the procurement, distribution and use of printers and notebooks.
- Developed and implemented standardized provisioning processes, analyzed existing procedures, harmonized the processes involved and ensured compliance with security, compliance and quality requirements.
- Introduced agile methods to continuously improve the hardware provisioning process.
- Promoted collaboration through clear responsibilities and communication structures between internal IT teams and external service providers.
- Documented and monitored rollout progress, created rollout reports and tracked hardware implementation in real time.
- Supported change management and organized and delivered training sessions for end users.
- Created user manuals and online resources.
- Analyzed the existing hardware landscape, created hardware inventories, assessed current equipment and checked hardware compatibility.
- Developed detailed infrastructure mappings.
- Planned, organized and conducted structured interviews with key stakeholders and created requirements documents.
Stefan M.
Last position:
Bundesrechtsanwaltskammer
- Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
- Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
- Documentation of test cases, execution steps, and test results.
- Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Stanislaus S.
Last position:
Security Consultant at Rohde & Schwarz AG at Star Labs GmbH
- Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
- Developed and audited Linux drivers
- Collaborated using GitLab, Gerrit, Confluence and Jira
- Technologies: C, C++, Secure Boot
Christian C.
Last position:
UI Design Lead · Mobile App & Design System at Penny Markt GmbH
- UI design of the Penny mobile app and ongoing maintenance of the company-wide design system — carried out with a senior UI designer from the Artyspark team.
- Managing, briefing, and quality control of all design decisions; close coordination with Penny's internal product team in product management and development.
- Ensuring consistent UI standards across the app and design system; reviewing and approving components, tokens, and guidelines.
Valeri M.
Last position:
Associate Partner - Information Security Consulting at Insentis GmbH
- Improvement of the Information Security Management System (ISMS) based on ISO 27001, NIS2, DORA, B3S, TISAX and BSI IT Baseline Protection
- Conducting comprehensive gap analyses to identify gaps and derive action plans according to the above standards and regulations; management and KPIs
- Data Loss Prevention strategy and implementation using MS Purview
- Vulnerability and patch management, security monitoring
- Risk analysis and threat modeling using the STRIDE methodology
- Development of vendor risk assessments, implementation of risk classifications, conducting supplier assessments and implementing technical monitoring solutions (e.g. Security ScoreCard)
- Securing cloud environments (AWS and Azure); expertise in CSPM/CNAPP (Wiz), cloud migration, secure CI/CD pipelines, container security and best practices in AWS, Azure and Office 365
- Application security: penetration testing, DevSecOps, OWASP, pre-commit hooks, key and secret management, IDE plugins, static source code analysis, dependency checks, container scanning, vulnerability management, CIS benchmarks and compliance
- Security assessment and hardening according to CIS benchmarks and cloud conformity in AWS, Office 365 and Azure
Ayhan G.
Last position:
Senior QA Engineer / Test Automation Engineer / SDET at Rewe digital
Consulting, designing, and implementing the software testing lifecycle for multiple Android apps and backends Introducing test automation with Appium, SpringBootTest, RestAssured Setting up and managing emulators Developing an E2E library, an integration library, a Testcontainers library, and other libraries Developing, implementing, and advising on CI strategies Building the test environment with Testcontainers and virtualization Developing and implementing test cases for integration tests and end-to-end tests Establishing a maintainable test architecture with low entry barriers to simplify the creation of automated tests Some tools and technologies used: JUnit, RestAssured, Testcontainers, Kubedock, Appium, Android emulator, Jira Xray, Mockito, WireMock, Spring Framework, Kotlin
Michael O.
Last position:
UX UI Designer at Robert Piper
Concept development and redesign of a real estate sales platform, AI-driven ideation with Claude
Real Estate Conversion Optimization Claude
Asaf H.
Last position:
Test Manager at grandcentrix GmbH
- Established and led QA processes for IoT-embedded systems utilizing Wi-Fi, Zigbee, and DALI protocols.
- Responsible for requirement validation, end-to-end manual testing, and defining test and release strategies to ensure seamless product delivery and stakeholder alignment.
- Collaborated closely with clients and internal stakeholders.
- Developed data-driven quality dashboards and reports, improving stakeholder visibility and enabling faster, more informed decision-making.
- Worked with an agile state of mind in a Scrum/Kanban team using Jira, Confluence, and TestRail.
Denis A.
Last position:
Product Owner at Lynqtech
- Owned the development of partner-critical onboarding processes of the B2B2C-facing SaaS platform.
- Collaborated cross-functionally with engineering, design, and enterprise clients to deliver a scalable and API-first onboarding flow.
- Delivered the company’s main initiative — dynamic product — in close collaboration with internal SMEs and energy supplier clients.
- Increased successful user activations by 10% through streamlined ADDRESS API integration and real-time monitoring tools.
- Defined and prioritized product roadmap based on business goals, client needs, and platform vision.
- Led discovery sessions and co-creation workshops with customers, turning insights into validated product opportunities.
Zacharias D.
Last position:
Founder & Managing Director at Liveloop GmbH
- Built and successfully established a qualitative online market research software platform (Software-as-a-Service) as a boutique provider and grew it into a top 5 provider in the DACH region
- Product ownership and project management for the SaaS software platform in over 20 countries, and since 2017 for the mobile iOS and Android app
- Defined and implemented the product vision and roadmap, product and interface design, product backlog management and prioritization, including customer requirements and stakeholder input
- Advised corporate clients on structured user feedback and led user experience studies (in-home use tests, diary studies, user acceptance testing)
- Collaborated on digital product development projects in a corporate environment (apps & IoT applications) and facilitated workshops with D-level stakeholders in German and English
- Responsible for acquisition and account management of corporate clients in German-speaking countries and across Europe
- Built and led the Professional Services team both functionally and disciplinarily, with a focus on data protection and GDPR compliance
Andreas J.
Last position:
Certified AI Expert Trainee at Scaly Academy
- Further training to become a certified AI expert in the company
- Fundamentals of AI
- AI tools
- Prompt engineering (creation of professional prompts)
- (Advanced) Process automation with AI and make.com
- AI in marketing and sales
- Legally compliant use of AI in companies
- Intelligent knowledge management
- AI in customer management
- Developing AI guidelines for the company
- AI integration into the company
Eren C.
Last position:
Scrum Master at IQmatix
- Promoting and applying agile principles and Scrum frameworks in multiple teams
- Facilitating Scrum events (e.g. Daily Stand-Ups, Sprint Plannings, Reviews, and Retrospectives)
- Supporting teams in removing impediments and blockers
- Implementing metrics (e.g. velocity, burndown charts) to monitor and improve team performance
- Successfully conducting workshops and training on agile methods and best practices
- Technologies: Jira, Confluence, Scrum
- Methods: Scrum framework
Andreas B.
Last position:
Senior Frontend Developer at Roadex
- Development of an app
- Technologies: React Native, Expo, SupaBase, TypeScript, GitHub, Trello
Discover over 15,000 top freelancers
Statistics of experts using Android
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 18 years)
Position duration
2.1 years (Germany: 2.9 years)
Positions per freelancer
17 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Project Management, Quality Assurance
Bachelor's degree or higher
92% (Germany: 89%)
Master's degree or higher
62% (Germany: 48%)
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 96%)
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 Cologne 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.
Discover detailed Android rate benchmarks:
Explore rate insightsAverage rates of experts in Cologne using Android
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.
Android 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%)
- Retail (50%)
- Banking and Finance (43%)
- Telecommunication (43%)
- Automotive (36%)
- Insurance (36%)
- Professional Services (36%)
- Healthcare (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Mobile products
Android is Google’s mobile operating system and the foundation for apps on phones, tablets, TVs, cars, watches and other connected devices. Companies use it for consumer apps, field-service tools, commerce, media, banking, logistics and internal operations. Android apps can reach varied hardware while supporting native device features such as cameras, sensors, biometrics and notifications.
Core ecosystem
The Android ecosystem includes the Android SDK, Android Studio, Kotlin, Jetpack libraries and Jetpack Compose for modern interface development. Strong professionals also work with Gradle, Kotlin Coroutines, Room, Retrofit, Firebase and Google Play services. They choose suitable APIs, manage permissions and keep behavior consistent across device manufacturers and operating-system releases.
Typical deliverables
- Native Android apps for consumer and business use
- Responsive interfaces with Jetpack Compose or XML layouts
- Offline-first features, synchronization and local storage
- Camera, location, Bluetooth, NFC and biometric integrations
- Release preparation, monitoring and Google Play updates
When to bring help
Companies often bring in freelance Android expertise when launching a new app, modernizing an existing codebase or adding a critical mobile workstream. Specialist support is also useful for performance problems, difficult integrations, accessibility improvements and release preparation. In Cologne, a local professional can join on-site workshops while still collaborating effectively with distributed product teams.
Quality signals
A strong Android professional connects product goals with maintainable implementation. They set clear boundaries between UI, domain logic and data access, write meaningful tests and use profiling tools to investigate real device behavior. They understand lifecycle changes, background limits, accessibility, security and the practical differences between emulator results and physical hardware.
Collaboration fit
Before starting, define supported device categories, minimum operating-system versions, backend interfaces, release ownership and analytics needs. Agree on design handoff, review routines and testing responsibilities early. For remote or hybrid work in Cologne, clear written communication and fluent collaboration in the team’s working language matter as much as Kotlin or Android SDK knowledge.
Frequently asked questions
Quick answers to the questions that come up most around Android.
Android is used for mobile apps on phones and tablets, as well as products for watches, TVs, cars and dedicated business devices. Companies rely on it for commerce, finance, logistics, media, field service and customer-facing services.
Android offers broad hardware reach and supports devices across many manufacturers and price levels. iOS provides a more controlled hardware range, while the right choice depends on the target audience, device features, release priorities and maintenance plans.
A strong Android specialist often understands Kotlin, Jetpack Compose, Android Studio, Gradle, REST or GraphQL APIs and automated testing. Experience with backend contracts, analytics, accessibility, security and Google Play operations can also reduce delivery risk.
The required depth depends on the product, not only its feature list. A simple app may need focused implementation skills, while a regulated, offline-first or hardware-integrated product calls for someone who can shape architecture, testing, releases and long-term maintenance.
Yes. Android work is well suited to remote collaboration through shared repositories, issue tracking, design tools and test builds. On-site sessions in Cologne can still help with discovery, device testing and coordination with product or hardware teams.
Look for shipped apps with clear responsibilities, not just attractive screens. A credible Android SDK specialist can explain architecture choices, testing coverage, performance investigations, release handling and how the app behaves across real devices.
Kotlin is the preferred language for much current Android work because it supports concise, safer application code and works well with Jetpack libraries. Java remains relevant when maintaining established applications or integrating with existing enterprise code.
Experienced Android professionals define supported device profiles, test important screen sizes and monitor behavior on physical hardware. They use compatibility libraries, adaptive layouts, staged releases and diagnostics to manage differences between manufacturers and operating-system versions.
The average hourly rate of freelancers in Cologne, Germany who have used Android in their recent projects is 95 €, which corresponds to a daily rate of about 764 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Android in their recent projects, 92% hold at least a Bachelor's degree and 62% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used Android in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Cologne, Germany who have used Android in their recent projects are German (100%), English (100%), and Spanish (29%).
The most common industries among freelancers in Cologne, Germany who have used Android in their recent projects are Information Technology (100%), Retail (50%), and Banking and Finance (43%).
The most common business areas among freelancers in Cologne, Germany who have used Android in their recent projects are Information Technology (93%), Product Development (93%), and Project Management (79%).
Main locations of FRATCH Experts, who have recently used Android
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.
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Hamburg 
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Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
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