Android Developer (Kotlin)

🏢 Summary: Remote Mid .NET Developer role in the logistics industry focused on developing and maintaining desktop applications within a complex environment. The position involves enhancing existing systems, deploying to production, and ensuring performance and reliability through continuous improvement. The project runs until the end of 2026 and follows Agile/Scrum methodology. 🗂️ Requirements: Minimum 5 years of commercial experience in .NET development (.NET Framework 3.5–4.7), Strong experience in developing desktop applications using WinForms, Solid knowledge of SQL and Entity Framework, Experience in building and consuming REST services, Experience with Git, Jira, Confluence, and CI/CD pipelines, Experience working in Agile/Scrum environment, Ability to perform testing, debugging, and troubleshooting 📃 Skills: C#, .NET, .NETFramework, WinForms, SQL, EntityFramework, REST, Git, Jira, Confluence, CI/CD, Agile, Scrum 🏢 Description: About the Project We are looking for Mid .Net Developer with experience in developing desktop apps to join a project from logistics industry . Work Mode: remote Start of the project: ASAP Duration of the project: till the end of 2026 Job Responsibilities Design, develop, and maintain .NET-based applications (including desktop solutions), ensuring alignment with business and user requirements Enhance and modify existing systems, working within a complex environment Deploy software to production and ensure its stability, reliability, and performance Continuously improve applications through optimization, refactoring, and performance tuning Collaborate closely with cross-functional teams including engineers, QA specialists, analysts, and Product Managers Participate in Agile/Scrum ceremonies and contribute to continuous improvement initiatives Write and maintain clear technical documentation covering system architecture and implementation processes Report bugs, track issues, and manage tasks using Jira Perform testing, debugging, and troubleshooting to ensure high-quality software delivery Share knowledge and best practices with team members Expectations Min. 5 years of commercial experience in .NET development (primarily .NET Framework 3.5–4.7 ) Strong experience with desktop applications (WinForms) Solid knowledge of SQL, Entity Framework, and REST communication Experience working with development tools and processes: Git, Jira, Confluence, CI/CD, and code reviews Proven ability to take ownership of tasks, quality, and deliverables in an Agile/Scrum environment We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres) Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: Opportunity for a Senior Android Developer to build and scale a large consumer mobile application used daily by millions across Europe. The role focuses on delivering a high-quality native Android experience, contributing to architecture decisions, and improving engineering standards within a growing product. You will work in cross-functional teams to develop scalable, maintainable, and high-performance mobile solutions. 🗂️ Requirements: 5+ years commercial experience in Android development, Strong hands-on experience with Kotlin, Strong hands-on experience with Java, Experience refactoring and improving existing codebases, Solid understanding of MVVM architecture, Knowledge of Clean Architecture principles, Understanding of SOLID principles, Experience with Git, Experience with CI/CD pipelines, Experience with release management processes, Strong knowledge of Android development best practices, Understanding of Material Design principles, Experience working in Agile cross-functional teams, Professional English proficiency 📃 Skills: Android, Kotlin, Java, MVVM, CleanArchitecture, SOLID, Git, CI/CD, MaterialDesign, Agile 🏢 Description: Senior Android Developer About the Project Join a team building one of Europe's leading mobile applications, used daily by millions of users. The product is undergoing rapid growth and international expansion, with a strong focus on scaling its mobile platform and delivering a best-in-class native Android experience across multiple European markets. We are looking for an experienced Senior Android Developer who wants to have a real impact on product development, mobile architecture, and engineering standards while working on a large-scale consumer application. Your Responsibilities Develop high-quality, testable, and maintainable Android applications. Contribute to architectural decisions and help build scalable mobile solutions. Participate in code reviews and promote engineering best practices. Collaborate closely with Product Managers, Designers, QA Engineers, and other development teams. Create and maintain technical documentation and specifications. Continuously improve development processes, tools, and workflows. Evaluate and implement new technologies to enhance application performance and development efficiency. Requirements 5+ years of commercial experience in Android development. Strong hands-on experience with Kotlin and Java. Proven experience in refactoring and improving existing codebases. Solid understanding of MVVM, Clean Architecture, and SOLID principles. Experience with Git, CI/CD pipelines, and release management processes. Strong knowledge of Android development best practices. Understanding of Material Design and modern mobile UI/UX principles. Experience working in Agile, cross-functional teams. Good communication skills and professional English proficiency. Nice to Have Experience working on large-scale mobile applications with a significant user base. Familiarity with modern Android libraries and frameworks. Experience with performance optimization and application monitoring. Interest in mobile platform development and engineering excellence.

🏢 Summary: B2B contract for a Senior Android Engineer to develop and maintain high‑impact mobile applications for a leading European media and entertainment provider. The role focuses on building scalable Android solutions for live sports, fan engagement and premium content platforms used by millions of users. It is a 6‑month remote project (with possible extension) starting ASAP. 🗂️ Requirements: Strong experience with Kotlin, Commercial experience with Jetpack Compose, Experience building responsive UIs for phones and tablets, Experience developing and maintaining mobile backend services, Knowledge of SOLID principles and mobile architecture patterns, Experience with Dagger or Hilt for Dependency Injection, Experience with Kotlin Coroutines, Experience with AndroidX Architecture Components, Experience with modular Android development, Experience with Firebase SDKs, Experience with CI/CD pipelines, Experience with observability and performance monitoring, Experience with Unit Testing and UI Testing, Proficiency with Git workflows, Practical experience working in Agile environments 📃 Skills: Kotlin, JetpackCompose, Android, AndroidX, Coroutines, RxJava, Dagger, Hilt, Firebase, Git, CI/CD, UnitTesting, UITesting, SOLID, Agile 🏢 Description: Project details: Role: Senior Android Engineer Duration: 6 months (with the possibility of further extension), Start: ASAP, the kick-off of the project is planned for April 2026, Contract: B2B, Equipment: Laptop provided by the customer, Work mode: 100% remote from Poland. About our customer: Our customer is a rapidly growing international software company that specialises in delivering media and entertainment projects. It is expanding its capabilities in the areas of the Internet of Things (IoT), cloud computing and tailored artificial intelligence (AI) solutions. They collaborate with global organisations to design and implement strategic infrastructures, content workflows, and consumer-facing digital applications. This role will enable you to support their ongoing European expansion while working on a high-impact digital product used by millions. About the project: Project for Large European Media & Entertainment Provider. You will work on behalf of the customer for one of Europe's leading media and entertainment companies, an organisation known for delivering premium content, live sports, award-winning news and innovative digital products to millions of users. The client operates in a fast-paced, innovation-driven environment and is continuously evolving its digital experiences across mobile, streaming and interactive platforms. Their teams are recognised for developing cutting-edge technology solutions that prioritise customer experience and large-scale impact. Your work will focus on mobile applications related to: Live sports experiences, Fan engagement features, Premium news and content experiences. Required Skills: Strong expertise in Kotlin and Jetpack Compose, Experience building responsive UIs for phones and tablets, Experience creating and maintaining mobile backend services, Solid understanding of SOLID principles and mobile architecture patterns, Dagger/Hilt for Dependency Injection, Kotlin Coroutines (must‑have); RxJava (nice‑to‑have), AndroidX Architecture Components, Experience with modular Android app development, Familiarity with Firebase SDKs, Experience with CI/CD pipelines , observability and performance monitoring, Strong background in Unit Testing and UI Testing, Excellent Git workflows, branching and commit practices, Practical understanding of Agile principles, ceremonies, planning and estimating. Responsibilities: Lead the development and maintenance of high‑quality Android applications serving millions of users, Implement scalable features using modern Android best practices and clean architecture, Collaborate with designers, backend developers and product owners across both the consultancy and the end client, Ensure performance, reliability and exceptional user experience across diverse Android devices, Participate in architectural decision-making and contribute to platform‑wide best practices, Maintain strong test coverage and contribute to continuous integration and delivery pipelines, Contribute to monitoring, observability and performance improvements, Coach and support other engineers when needed.

🏢 Summary: Senior Android Developer role focused on building business-critical native Android applications in Kotlin for next-generation premium electric vehicles. The position combines hands-on development with technical ownership, including code reviews and mentoring, in a complex automotive environment. Strong emphasis on quality, performance, scalability, and integration-focused functionality. 🗂️ Requirements: 5+ years Android application development experience, Strong experience with native Android development in Kotlin, Solid understanding of Android development lifecycle, Strong knowledge of Kotlin Coroutines and asynchronous programming, Experience with software design patterns and modular architecture, Experience building business-critical and integration-focused features, Experience with unit testing and debugging, Ability to maintain high code quality standards, Experience working with Jira and Confluence, Upper-Intermediate English or higher 📃 Skills: Kotlin, Android, Coroutines, UnitTesting, Jira, Confluence, Embedded, Automotive 🏢 Description: About the project We are looking for a Senior Android Developer to join an innovative automotive project focused on next-generation electric mobility solutions . You will work with a European R&D center delivering premium digital products and technologies for some of the world’s leading automotive brands. The project is focused on building business-critical Android applications that support the future of premium electric vehicles . This is a great opportunity to join a fast-paced, engineering-driven environment where quality, performance, and reliability are essential. Your role As a Senior Android Developer , you will be responsible for designing and developing native Android applications in Kotlin , with a strong focus on business logic, integrations, code quality, and maintainability . This role combines hands-on development with technical ownership — including code reviews, mentoring, and cross-team collaboration in a complex automotive environment. Tech stack / environment Kotlin Native Android Kotlin Coroutines Unit testing Jira / Confluence Automotive / Embedded environment What you’ll do Design and develop native Android applications in Kotlin Build and maintain business-critical features and integration-related functionality Write clean, maintainable, and testable code Apply design patterns and best engineering practices to create scalable and well-structured solutions Collaborate with cross-functional teams in a complex product environment Perform code reviews and support high engineering standards Contribute to unit testing , bug fixing, and continuous quality improvements Help solve technical challenges and communicate solutions clearly Support and mentor other team members in mobile development What we’re looking for 5+ years of experience in Android application development Strong hands-on experience building native Android applications in Kotlin Solid understanding of the Android development lifecycle Strong knowledge of Kotlin Coroutines and asynchronous programming Experience writing maintainable, testable, and well-structured code Experience designing and developing business-critical and integration-focused functionality Good understanding of software design patterns and modular application architecture Experience with unit testing , debugging, and code quality practices Ability to work independently in a fast-paced environment Strong communication skills and ability to explain technical challenges and solutions clearly Experience working with Jira and Confluence Upper-Intermediate English or higher Nice to have Experience in the Embedded Automotive domain Experience with Head Unit Android Apps Experience in technically complex, multi-team product environments Perks and Benefits: Flexible work schedule Fixed financial bonus issued upfront on a quarterly basis, covering the average market price of private medical care and sport card - B2B contract Present on the occasion of birthday, wedding, child birth E-learning accounts for Coursera, O'Relly, Udemy Corporate language school

🏢 Summary: Lead Android Developer role focused on designing, developing, and maintaining high-quality Android applications using Kotlin and modern best practices. The position involves leading technical decisions, ensuring code quality, and collaborating with cross-functional teams to deliver robust mobile solutions. 🗂️ Requirements: 5+ years of Android development experience, Strong proficiency in Kotlin, Experience with Android SDK, Experience with App Components, Knowledge of Android UI frameworks, Understanding of Android design patterns, Knowledge of mobile architectures and trends, Understanding of full mobile development lifecycle, Experience with networking on Android, Experience with local data caching, Experience with multitasking on Android, Experience with third-party libraries and services 📃 Skills: Kotlin, Android, AndroidSDK, AppComponents, UI, DesignPatterns, Architecture, Networking, Caching, Multitasking, Lifecycle, Libraries 🏢 Description: We are seeking a highly skilled Lead Android Developer to join our dynamic team. The ideal candidate will have a proven track record in Android development, strong proficiency in Kotlin, and a passion for building high-quality mobile applications. As a Lead Android Developer, you will play a key role in designing, developing, and maintaining innovative Android applications, while collaborating with both local and remote team members. Responsibilities Design and develop high-quality Android applications using the latest technologies and best practices Collaborate with cross-functional teams to define project requirements and deliver solutions that meet customer needs Ensure the performance, quality, and responsiveness of applications by conducting thorough code reviews and testing Maintain code integrity, organization, and documentation Stay up-to-date with the latest technologies and trends in Android development Requirements Proven 5+ years of working experience in Android development (Android SDK) Proficiency in Kotlin for Android Experience in App Components, UI frameworks, developer tools, and workflows Good understanding of Android Design Patterns Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies Solid understanding of the full mobile development life cycle Good understanding of networking, caching local data and multitasking on Android Experience with 3rd party libraries and services Ability to work in a dynamic team environment, with a mix of local and remote resources Very good communication skills English proficiency at B2 level or higher Nice to have Previous experience with React Native We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.

🏢 Summary: Long-term remote B2B opportunity for a Senior Android Developer to build and scale high-impact mobile applications used by millions of users across Europe. The role focuses on developing high-quality Android solutions, improving performance and scalability, and contributing to architectural decisions in an agile environment. The position offers up to 170 PLN/h and full remote work from Poland. 🗂️ Requirements: Strong experience in Android development, Proficiency in Kotlin, Proficiency in Java, Hands-on experience with MVVM architecture, Hands-on experience with Clean Architecture, Knowledge of SOLID principles, Experience with CI/CD pipelines, Experience with release processes, Experience with version control systems, Understanding of UI/UX principles, Knowledge of Material Design, Ability to work in an agile cross-functional team 📃 Skills: Android, Kotlin, Java, MVVM, CleanArchitecture, SOLID, CI/CD, Git, MaterialDesign 🏢 Description: Senior Android Developer (Remote) 📍 Work mode: 100% remote from Poland 💸 Salary: up to 170 PLN/h on B2B contract ⌛ Project duration: long-term About the client: We are looking for an experienced Senior Android Developer to join a long-term, fully remote project focused on building and scaling high-impact mobile applications used by millions of users across Europe. You will contribute to the development of a highly recognizable mobile platform, playing a key role in enhancing application performance, scalability, and user experience, while collaborating with cross-functional teams in an agile environment. Key Responsibilities: Develop high-quality, testable, and maintainable Android applications. Actively participate in technical discussions and contribute to architectural decisions. Ensure code quality through regular code reviews and adherence to best practices and standards. Collaborate with product, design, and backend teams to deliver new features. Refactor and improve existing code to enhance performance and maintainability. Create and maintain technical documentation (architecture, processes, and implementation details). Continuously evaluate and implement new technologies to improve efficiency and product quality. Requirements: Strong experience in Android development using Kotlin and Java. Hands-on experience with modern mobile architectures such as MVVM, Clean Architecture, and SOLID principles. Ability to work both independently and within a cross-functional agile team. Experience with CI/CD pipelines, release processes, and version control systems (e.g., Git). Good understanding of UI/UX principles, including Material Design. Strong problem-solving skills and attention to details Nice to Have: Experience working on scalable applications with large user bases. Familiarity with performance optimization and mobile application scaling. What We Offer: Fully remote work model. Long-term collaboration on a B2B contract. Benefits package including: Multisport card, private medical care, health insurance Recruitment Process: Live Coding Session (90 minutes) System Design Interview (90 minutes) Hiring Manager Interview (60 minutes) Technical/Behavioral Interview (Bar Raiser – 60 minutes) Final Decision and Offer Co zyskasz dzięki aplikacji na ofertę Antal? Gdy Twoja aplikacja zostanie rozpatrzona pozytywnie (zostaniesz zaproszony/a do procesu), otrzymasz wsparcie Konsultanta/Konsultantki, który/a utrzyma z Tobą stały kontakt (mailowo lub telefonicznie), pomoże Ci przygotować się do rozmowy rekrutacyjnej z przyszłym pracodawcą oraz zatroszczy się o jakość procesu rekrutacyjnego, w którym aktualnie bierzesz udział. Kim jesteśmy? Jesteśmy liderem rekrutacji specjalistów i menedżerów oraz doradztwa w obszarze HR. Marka obecna jest w 35 krajach, w Polsce działa od 1996 roku. Przez ten czas zbudowaliśmy wiele karier kandydatów, dzięki elastycznemu i kompleksowemu podejściu do wszystkich rekrutacji. Antal tworzy ponad 130 profesjonalnych konsultantów ds. rekrutacji, którzy są oni nie tylko skutecznymi rekruterami, ale także wykwalifikowanymi doradcami, specjalizującymi się zarówno w zakresie wybranego sektora, jak i stanowiska. Sprawdź inne aktualne oferty pracy na: https://antal.pl/dla-kandydata Zaobserwuj nasz profil na LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Remote B2B opportunity for an Android Developer to build and maintain scalable, high-quality mobile applications using modern Android technologies. The role focuses on delivering new features, integrating backend services, and ensuring performance and reliability across devices. You will contribute to architecture decisions and CI/CD processes within a cross-functional team. 🗂️ Requirements: 3–5+ years of Android development experience, Proficiency in Kotlin and Java, Experience with Android Jetpack components (ViewModel, LiveData, Room, Navigation, WorkManager), Knowledge of MVVM or Clean Architecture, Experience with Coroutines and Flow, Experience integrating RESTful APIs and working with JSON, Proficiency with Git version control, Experience with Hilt or Dagger, Experience with JUnit and Espresso, Experience with CI/CD pipelines, Understanding of mobile UI/UX principles 📃 Skills: Kotlin, Java, Android, AndroidStudio, Jetpack, ViewModel, LiveData, Room, Navigation, WorkManager, MVVM, CleanArchitecture, Coroutines, Flow, REST, JSON, Git, Hilt, Dagger, JUnit, Espresso, CICD, Jenkins, GitHubActions, Bitrise, AzureDevOps, Firebase, Crashlytics, AppCenter, KMM, Compose 🏢 Description: Android Developer We are looking for a talented Android Developer to join our engineering team and help us build high-quality, scalable, and user-friendly mobile applications. You will work closely with product, design, and backend teams to deliver reliable Android features and improve the overall app experience. Work mode: Remote From Bulgaria Contract: B2B Industry: Postal services 💡 Key Responsibilities • Design, develop, and maintain Android applications using Kotlin and Android Studio. • Collaborate with cross-functional teams to define and deliver new features. • Ensure application performance, quality, and responsiveness across a wide range of devices. • Integrate RESTful APIs, third-party SDKs, and backend services. • Write clean, maintainable, and testable code following best practices. • Perform code reviews and participate in architectural discussions. • Troubleshoot and resolve bugs, crashes, and performance issues. • Maintain up-to-date knowledge of Android development trends, libraries, and frameworks. • Contribute to CI/CD pipelines and support automated deployment/testing processes. ✅ Required Skills & Qualifications • 3–5+ years of hands-on experience in Android development. • Strong proficiency in Kotlin and Java. • Experience with Android Jetpack components (ViewModel, LiveData, Room, Navigation, WorkManager). • Familiarity with MVVM or Clean Architecture patterns. • Experience with Coroutines and Flow. • Strong understanding of mobile UI/UX principles. • Experience integrating RESTful APIs and working with JSON. • Proficiency with Git and version control workflows. • Experience with dependency injection frameworks like Hilt or Dagger. • Familiarity with unit and UI testing frameworks (JUnit, Espresso). • Experience working in Agile/Scrum environments. • Strong problem-solving and communication skills. ➕ Nice to Have • Knowledge of Jetpack Compose UI. • Experience with CI/CD tools (Jenkins, GitHub Actions, Bitrise, Azure DevOps). • Familiarity with analytics & crash reporting tools (Firebase, Crashlytics, AppCenter). • Experience with Kotlin Multiplatform (KMM). • Practical experience in performance profiling and optimization. ✅ What’s in It for You? • Work with modern technologies • Collaborate with international teams • Long-term and stable cooperation • Professional growth opportunities 📩 If you’re interested or would like to learn more, feel free to reach out at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: B2B contract opportunity for a Regular or Senior Android Native Developer to design, build, and maintain scalable native Android applications using modern technologies. The role involves end-to-end mobile development, CI/CD implementation, testing, performance optimization, and publishing apps to Google Play Store in a collaborative environment. Remote work with periodic on-site presence in Kraków. 🗂️ Requirements: Proven experience delivering native Android applications, Strong expertise in Kotlin, Solid knowledge of Java, Excellent knowledge of Android SDK, Strong understanding of Jetpack or Jetpack Compose, Experience with Android Studio, adb, Android Emulator, Experience writing unit and automated tests, Experience building and maintaining CI/CD pipelines, Experience publishing applications to Google Play Store, Knowledge of JSON and XML, Experience implementing mobile security best practices, Understanding of mobile accessibility standards, Experience with Test-Driven Development 📃 Skills: Kotlin, Java, Android, SDK, Jetpack, Compose, CI/CD, AndroidStudio, adb, Emulator, JSON, XML, TDD, Git, IntelliJ, VSCode 🏢 Description: In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future. We are looking for an experienced Android Native Developer to join our client’s mobile development team. The ideal candidate will have a strong track record of building and delivering high-quality native Android applications using modern Android technologies. You will be responsible for designing, developing, testing, and maintaining scalable mobile applications while collaborating closely with designers, product teams, and backend engineers. This role requires deep expertise in Kotlin , modern Android architecture, and the Android development ecosystem, along with experience implementing CI/CD pipelines and publishing applications to the Google Play Store. Project information: Location: Kraków, Poland Work Setup: Remote work with on-site presence required – approximately 6 days per month at the client’s office Two open vacancies: Regular developer and Senior Developer Rate: 120 – 135 PLN/net/h + VAT (B2B contract) Start date: depending on candidate availability Language: English (min B2) Project scope: Design, develop, and maintain native Android applications using modern Android development practices. Build high-quality, scalable mobile applications using Kotlin, Android SDK, and Android Jetpack / Jetpack Compose. Implement responsive and accessible mobile UI based on provided design specifications using native Android components and design systems. Develop, maintain, and optimize CI/CD pipelines for mobile applications. Write unit tests and automated tests to ensure application stability and reliability. Debug, profile, and optimize Android applications for performance and stability. Work with mobile development tools such as Android Studio, adb, and the Android Emulator. Handle data serialization and deserialization using JSON and XML. Manage application publishing, versioning, and certificate management in the Google Play Store. Implement security best practices and mobile security features. Collaborate with cross-functional teams including product managers, designers, and backend engineers. Follow Test-Driven Development (TDD) principles and maintain high code quality standards. Requirements: Proven experience delivering native Android mobile applications. Strong expertise in Kotlin and solid knowledge of Java for Android development. Excellent understanding of the Android platform, SDK, and Jetpack / Jetpack Compose. Experience with Android Studio, adb, and Android Emulator. Experience writing unit and automated tests for Android applications. Strong debugging and troubleshooting skills. Experience building and maintaining CI/CD pipelines for mobile applications. Experience publishing applications to the Google Play Store. Good knowledge of mobile accessibility standards. Experience working with JSON and XML data formats. Experience implementing mobile security best practices. Passion for Test-Driven Development (TDD) and writing maintainable code. Preferred Experience: Experience using Git and working with IDEs such as IntelliJ and Visual Studio Code. Experience working with mobile component libraries. Familiarity with iOS native development (Swift, SwiftUI, Xcode). Familiarity with cross-platform frameworks such as React Native or Flutter. Preferred Skills / Competencies: Experience designing and building digital products in onboarding or banking/financial services environments. Experience using AI-assisted development tools such as GitHub Copilot or Claude CLI. Strong problem-solving skills and attention to detail. We offer: Full-time job agreement based on B2B Private medical care with dental care (covering 70% of costs) + rehabilitation package. Family package option possible Multisport card (also for an accompanying person) Life insurance

🏢 Summary: 6-month remote contract for a Senior Android Developer to develop and modernize a production B2B mobile application in the construction domain, including migration from Java to Kotlin and adoption of Jetpack Compose. The role focuses on implementing new features, optimizing existing flows, integrating APIs, and supporting 3D components within a large-scale codebase. 🗂️ Requirements: Minimum 5 years of Android development experience, Strong knowledge of Kotlin, Experience with Java in maintenance and refactoring, Experience working with large production codebases, Knowledge of MVVM or Clean Architecture, Experience with REST or GraphQL API integration, Ability to debug and optimize performance issues, Experience in Java to Kotlin migration, Knowledge of Jetpack Compose, English level C1 📃 Skills: Android, Kotlin, Java, MVVM, CleanArchitecture, REST, GraphQL, JetpackCompose, Compose, API, Git, 3D, Rendering 🏢 Description: Nasz klient to belgijska firma technologiczna, oferująca oprogramowanie w chmurze (SaaS) oraz aplikację mobilną do zarządzania projektami budowlanymi. Firma specjalizuje się w rozwiązaniach typu PropTech/ConTech, mających na celu cyfryzację procesów na budowie, poprawę komunikacji między biurem a placem budowy oraz zwiększenie bezpieczeństwa i wydajności pracy. Poszukujemy doświadczonego Senior Android Developera (Kotlin) , który wesprze rozwój i modernizację istniejącej aplikacji mobilnej. Projekt obejmuje pracę na produkcyjnym systemie B2B o dużym znaczeniu biznesowym - rozwój nowych funkcjonalności, modyfikację istniejących flow oraz stopniową modernizację architektury (Java → Kotlin, Compose). Czas trwania projektu: 6 miesięcy z możliwością przedłużenia Start: ASAP Tryb pracy: 100% zdalnie (sporadyczne wizyty w Łodzi) Zakres obowiązków Rozwój i utrzymanie natywnej aplikacji Android Implementacja nowych funkcjonalności ( m.in . role użytkowników, poziomy dostępu, modyfikacja logiki permissions) Aktualizacja i optymalizacja istniejących flow (zadania, dokumenty, widoki) Integracja z API (REST / GraphQL) Współpraca przy integracji komponentów 3D (renderowanie modeli, optymalizacja wydajności) Stopniowa refaktoryzacja i migracja fragmentów aplikacji do Kotlin oraz Jetpack Compose Analiza i minimalizowanie ryzyka regresji w istniejącym, rozbudowanym codebase Współpraca z Tech Leadami oraz zespołem backend/web Oczekiwania Minimum 5 lat doświadczenia w tworzeniu aplikacji Android Bardzo dobra znajomość Kotlin Doświadczenie w pracy z Java (utrzymanie/refaktoryzacja) Praktyczne doświadczenie w pracy na dużym, produkcyjnym codebase Znajomość MVVM/Clean Architecture Doświadczenie w integracji z API (REST lub GraphQL) Umiejętność debugowania problemów wydajnościowych Samodzielność i gotowość do pracy w środowisku z istniejącą architekturą Doświadczenie w migracjach Java → Kotlin Znajomość Jetpack Compose Doświadczenie z renderingiem grafiką 3D (mile widziane) Znajomość języka angielskiego C1 Oferujemy Stałe wsparcie osobistego agenta , dbającego o Twoją ciągłość projektową, kontakt z klientem, niezbędne formalności, komfort pracy oraz rozwój Consultant Development Program – doradztwo w planowaniu kariery w oparciu o najnowsze trendy i potrzeby rynku IT, obejmujące m.in . konsultacje z agentami i mentorami kariery Dostęp do 7N Learning & Development – platformy rozwojowo-edukacyjnej z webinarami, biblioteką artykułów i raportów branżowych oraz regularnymi zaproszeniami na jednorazowe i cykliczne wydarzenia rozwojowe – techniczne, biznesowe oraz life-stylowe Spektakularne eventy integracyjne , zarówno dla Ciebie (np. coroczny wyjazd Kick-Off , imprezy świąteczne czy sportowe Letnie Igrzyska), jak i dla Twoich bliskich (np. pikniki rodzinne, premiery filmowe) Rozwój zawodowy nie tylko podczas projektu – możesz zaangażować się w przekazywanie wiedzy innym w ramach oferty 7N Services kierowanej do klientów 7N Relacje i dostęp do wiedzy najbardziej doświadczonych ekspertów IT na rynku – średni staż zawodowy naszego Konsultanta w Polsce to ponad 10 lat Pakiet benefitów zaplanowany od A do Z , czyli dofinansowanie do opieki medycznej, ubezpieczenia na życie, karty sportowej dla Ciebie i Twoich bliskich, a także zniżki do sklepów w Polsce i za granicą. O 7N Ciągłe poszukiwanie projektów, trudne negocjacje stawek, brak wsparcia w rozwoju – brzmi znajomo? W 7N zyskujesz nie tylko stabilność kontraktów, ale też zaangażowanie osobistego opiekuna dbającego o Twój komfort zawodowy i stały dostęp do inicjatyw rozwojowych. Naszym celem jest zapewnienie Ci stabilnej i komfortowej współpracy, która przyczyni się do sukcesu Twojego jako eksperta IT oraz naszych klientów. Budujemy trwałe relacje, bazując na skandynawskich wartościach i 30-letnim doświadczeniu w tworzeniu rozwiązań IT dla ponad 200 organizacji.

🏢 Summary: 6-month hybrid contract for an experienced Android Developer to design, build, and maintain high-performance Android applications within a collaborative team. The role focuses on developing new features, integrating APIs, optimizing performance, and ensuring code quality through best practices and reviews. Opportunity to contribute to impactful mobile projects with potential extension. 🗂️ Requirements: Minimum 5 years of Android development experience, Proficiency in Java, Proficiency in Kotlin, Experience with RESTful APIs, Experience with third-party libraries, Solid understanding of full mobile development life cycle, Knowledge of modern design patterns, Ability to design and develop high-performance Android applications, Experience in debugging and performance optimization 📃 Skills: Android, Java, Kotlin, REST, APIs, Libraries, DesignPatterns, MobileLifecycle 🏢 Description: We are seeking an experienced Android Developer with at least 5 years of experience in mobile application development. The ideal candidate will possess a strong background in building high-quality Android applications and have a solid understanding of the mobile ecosystem. This role offers an opportunity to contribute to exciting projects and further enhance your skills within a collaborative team environment. Bonus: Able to work during summer-time. Start: ASAP Length: 6 months with possible extension Location: Hybrid in Stockholm (must be located in Stockholm area) Main Responsibilities: As an Android Developer, your primary duties will include: Designing and developing high-performance Android applications. Collaborating with cross-functional teams to define and design new features. Ensuring the performance, quality, and responsiveness of applications. Identifying and fixing bugs to maintain an efficient system. Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency. Participating in code reviews to ensure adherence to best practices. Maintaining up-to-date knowledge of mobile development trends. Key Requirements: Minimum 5 years of experience in Android development. Proficient in Java/Kotlin programming languages. Experience with RESTful APIs and third-party libraries. Solid understanding of the full mobile development life cycle. Familiarity with modern design patterns and best practices. Ability to work in a team-oriented environment. Strong problem-solving skills and attention to detail.