Senior Android/Kotlin Multiplatform Engineer

inventYOU IT Consulting

. Own, develop, and maintain the Android application and shared KMP business logic layer .

Posted 9/17/2026full-timeAthens • GreeceSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong expertise in Android application development using Kotlin and Kotlin Multiplatform, with a focus on secure coding practices and performance optimization. Proficient in designing and implementing modern interfaces and collaborating with cross-functional teams to deliver high-quality mobile solutions.

Highest-signal resume keywords

Kotlin Multiplatform DevelopmentJetpack ComposeMVVM ArchitectureFirebase AnalyticsREST APIs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

KotlinKotlin Multiplatform (KMP)Jetpack ComposeMVVM ArchitectureHilt Dependency InjectionKtor HTTP ClientAutomated TestingAndroid Security Best PracticesGradle Kotlin DSLOpenAPI Specifications

Soft Skills

Analytical SkillsProblem-SolvingCollaboration

Tools & Technologies

Android StudioFirebase CrashlyticsFirebase Cloud Messaging (FCM)MSALOAuth 2.0OpenID Connect

Certifications & Qualifications

University Degree in Computer ScienceEngineering or Related Field

Industry Keywords

Agile DevelopmentGDPR ComplianceCI/CD PipelinesMicroservicesConsent Management

Tech Stack

Tools & technologies

AndroidAzureCloudFirebaseGradleGraphQLiOSKotlinMicroservicesSitecore

About the role

Key responsibilities & impact

Own, develop, and maintain the Android application and shared KMP business logic layer
Design and implement shared Kotlin Multiplatform modules, including network services, API clients, and business logic
Build modern Android interfaces using Jetpack Compose, MVVM architecture, and Hilt
Collaborate with backend teams to define API contracts and OpenAPI specifications
Integrate mobile applications with backend microservices through REST APIs
Implement secure authentication flows using MSAL, OAuth 2.0, and OpenID Connect
Manage Firebase Analytics, Crashlytics, and Cloud Messaging (FCM)
Write and maintain unit, UI, and integration tests
Apply Android security best practices, including secure token management
Support GDPR-compliant consent management integrations
Develop and maintain secure WebView-based flows, including payments and identity verification
Support and enhance Android CI/CD pipelines
Troubleshoot, debug, and optimize application performance
Collaborate closely with Android, iOS, backend, QA, and DevOps teams

Requirements

What you’ll need

University degree in Computer Science, Engineering, or a related field
Strong proficiency in Kotlin
Strong hands-on experience with Kotlin Multiplatform (KMP), including shared modules, expect/actual, Coroutines, and Flow
Solid Android development experience using Jetpack Compose and MVVM architecture
Hands-on experience with Hilt dependency injection
Experience with Ktor HTTP Client and kotlinx.serialization
Experience with REST APIs and OpenAPI-generated API clients
Familiarity with MSAL, OAuth 2.0, and OpenID Connect
Experience with Firebase Analytics, Crashlytics, and FCM
Good understanding of Android security best practices, including secure token storage with Android Keystore
Experience with Gradle Kotlin DSL and dependency management using version catalogs
Strong knowledge of Android Studio, debugging tools, and performance profiling
Experience with automated testing using MockK, Espresso, and Compose UI testing
Experience working within an Agile development environment
Strong analytical, problem-solving, and collaboration skills
Nice to have: Experience with consent management platforms such as OneTrust
Nice to have: Familiarity with GraphQL and headless CMS platforms such as Sitecore XM Cloud
Nice to have: Experience with Android WebView for complex integrations
Nice to have: Knowledge of CI/CD pipelines and release processes in Azure DevOps
Nice to have: Experience contributing to shared SDKs or cross-platform mobile architectures
Nice to have: Familiarity with Azure DevOps
Strong hands-on expertise in Android and Kotlin Multiplatform development
Comfortable taking ownership of complex mobile applications and shared components
Care about application security, performance, maintainability, and user experience
Enjoy designing reusable solutions across Android and iOS ecosystems
Work effectively with backend, iOS, QA, and DevOps teams
Take ownership of technical challenges from design through production delivery

Benefits

Comp & perks

Work with modern mobile technologies including Kotlin Multiplatform, Jetpack Compose, and modern Android architecture
Contribute to a shared cross-platform ecosystem supporting both Android and iOS
Work on complex mobile integrations, authentication, and secure digital experiences
Collaborate with experienced mobile, backend, and DevOps professionals
Continue developing your expertise in modern mobile and cross-platform engineering