Senior Android Developer

🏢 Summary: Offer for an experienced Android Developer to design, develop, and maintain native Android applications using Kotlin and Java in a hybrid work model. The role focuses on building high-quality, scalable applications, integrating APIs, and collaborating with cross-functional teams. The position includes code reviews, performance optimization, and technical mentorship responsibilities. 🗂️ Requirements: Proven experience in native Android development, Strong portfolio of released Android applications, Expertise in Kotlin, Expertise in Java, Strong knowledge of Android SDK and architecture components, Experience with RESTful APIs and JSON, Knowledge of MVVM, MVP, or similar architectural patterns, Experience with Git version control, Bachelor’s degree in Computer Science, Software Engineering, or related field 📃 Skills: Kotlin, Java, Android, SDK, MVVM, MVP, REST, JSON, Git 🏢 Description: B2B: 130-140 zł/h netto + VAT Location" Hybrid (6 days per month from Cracow's office) Tasks: Design, develop, and maintain high-quality native Android applications using Kotlin and Java Collaborate with cross-functional teams to define, design, and implement new features Participate in code reviews to ensure code quality, performance, and security standards Optimize applications for maximum speed, efficiency, and scalability Integrate third-party APIs and services to enhance application functionality Identify and resolve bugs and performance bottlenecks promptly Stay updated with the latest industry trends, tools, and best practices in Android development Contribute to technical documentation and provide mentorship to junior team members Required skills and qualifications: Proven experience in native Android development with a strong portfolio of released applications Expertise in Kotlin and Java programming languages Solid understanding of Android SDK, architecture components, and lifecycle management Experience with RESTful APIs, JSON, and third-party libraries and SDKs Knowledge of MVVM, MVP, or other architectural patterns Familiarity with version control systems such as Git Strong problem-solving skills and attention to detail Excellent communication skills and ability to work effectively within a team Bachelor’s degree in Computer Science, Software Engineering, or related field Relevant certifications in Android development are a plus Offers: Hybrid work model: 6 days per month from the office in Cracow Multisport card Private healthcare Life insurance PowerYou platform - e-learning

🏢 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: B2B contract for a Senior Android Developer to remotely develop and maintain an Android mobile application. The role focuses on implementing new features, maintaining existing code, designing solutions, and writing clean Kotlin code using MVVM/MVC architecture and Dependency Injection. Responsibilities include unit and integration testing and working with standard Android development tools. 🗂️ Requirements: Minimum 5 years of commercial experience in Android development, Very good knowledge of Android SDK, Commercial experience in Kotlin for production mobile applications, Experience with MVVM or MVC architecture, Experience with Dependency Injection using Hilt, Proficiency with Android Studio, Gradle, and Git, Experience writing unit and integration tests using JUnit, Mockito, Espresso, Polish language proficiency at C1 level 📃 Skills: Kotlin, Android, AndroidSDK, MVVM, MVC, Viper, Hilt, AndroidStudio, Gradle, Git, JUnit, Mockito, Espresso, Jira 🏢 Description: Forma współpracy : kontrakt B2B Stawka (B2B PLN netto + VAT/h): 130-150 Tryb : zdalny (uzgodnione spotkania projektowe w zależności od potrzeb raz na miesiąc) Poszukujemy osoby o profilu Senior Android Developer , która posiada min. 5 lat komercyjnego doświadczenia. Wiodący stack technologiczny : Kotlin/Jira, Android Studio, Gradle, GIT, MVVM/MVC/Viper, Dependency Injection Hilt, Mockito/Espresso/Junit Projekt który będziemy gotowi Ci zaproponować dotyczy rozwoju aplikacji mobilnej na platformę Android, obejmującym implementację nowych funkcjonalności oraz utrzymanie istniejącego kodu. Zakres obejmuje analizę wymagań, projektowanie rozwiązań oraz implementację czystego i czytelnego kodu w języku Kotlin. Kluczowym elementem jest rozwój aplikacji w oparciu o wzorce architektoniczne MVVM/MVC, wykorzystanie Dependency Injection (Hilt) oraz narzędzi takich jak Android Studio, Gradle i Git. Projekt obejmuje również tworzenie testów jednostkowych i udział w testach integracyjnych oraz akceptacyjnych z wykorzystaniem frameworków takich jak JUnit, Mockito i Espresso, a także przygotowywanie dokumentacji technicznej. Wymagania: min. 5 lat komercyjnego doświadczenia bardzo dobra znajomość Android SDK oraz praktyczne doświadczenie w tworzeniu i rozwijaniu aplikacji mobilnych w języku Kotlin, z naciskiem na kod produkcyjny doświadczenie z architekturą MVVM (lub MVC) oraz implementacją Dependency Injection (Hilt) w złożonych projektach znajomość narzędzi i środowiska Android (Android Studio, Gradle, Git) doświadczenie w pisaniu testów jednostkowych i integracyjnych (JUnit, Mockito, Espresso) biegła znajomość j. polskiego (C1) Współpracując z naszą organizacją będziesz mógł/mogła liczyć na : Ugruntowaną pozycją rynkową Projekty, w których będziesz miał/miała wpływ na ich rozwój Współpracę z atrakcyjnymi klientami biznesowymi z różnych branż ( m.in .: finanse, bankowość, ubezpieczenia, healthcare, robotyzacja, energetyka, media) Bieżące informacje projektowe oraz stały dostęp do dokumentacji niezbędnej do realizacji zadań (np. Git, Gitflow, Angular, Docker, Primaris x TechTalks, Primaris Leadership Academy) Świetną atmosferę współpracy podczas realizacji projektów wśród zaangażowanych ludzi z pasją Cały proces nawiązywania współpracy oraz onboarding prowadzony jest zdalnie. Proces nawiązywania współpracy składa się z: rozmowy telefonicznej z osobą z działu Rekrutacji & HR (do 30 min) zdalnej video rozmowy - weryfikacji techniczno-biznesowej z naszym specjalistą/specjalistką (60-90 min) zdalnego spotkania z Product Owner projektu (30-60 min) Primaris Services to ponad 250 ekspertów na pokładzie i 15 lat doświadczenia w branży IT na rynku polskim oraz zagranicznym. Realizujemy ambitne projekty o wysokiej złożoności z różnych obszarów - m.in . bankowości, ubezpieczeń, healthcare, robotyzacji, energetyki, mediów (mamy ponad 40 aktywnych klientów). Rośniemy w siłę oraz ciągle poszerzamy portfolio zarówno naszych usług jak i klientów. Zakres naszej działalności obejmuje budowę systemów od zera, ich rozwój oraz utrzymanie,  wdrożenia produktowe, alokacje całych Zespołów, a także pojedynczych Ekspertów w strukturach Klienta. Ponadto od kilku lat działamy bardzo intensywnie jako złoty Partner firmy UiPath (obszar Robotic Process Automation) budując roboty i sprzedając licencje u naszych Klientów. Co miesiąc nawiązujemy współpracę z 7 nowymi osobami. Wierzymy, że ludzie z pasją to klucz do naszego wspólnego sukcesu! Właśnie dlatego ciągle poszukujemy nowych, zdolnych osób, które powiększą grono naszych współpracowników.

🏢 Summary: Software Engineer role in a long-term international project, working in a cross-functional team responsible for full product lifecycle from design to production support. The position involves backend and frontend development using modern technologies in an iterative delivery model. Hybrid work model with 5 days per month in the office. 🗂️ Requirements: Minimum 5 years of commercial software development experience, Experience with at least one programming language: Kotlin, Python, or JavaScript, Willingness to work across backend and frontend technologies, Working knowledge of Unix/Linux environments, Understanding of databases: MongoDB, Redis, PostgreSQL, Experience with HTTP APIs and RESTful services, Ability to provide production support and troubleshoot performance and security issues, Good English communication skills 📃 Skills: Kotlin, Python, JavaScript, Unix, Linux, MongoDB, Redis, PostgreSQL, REST, HTTP, .NET, C# 🏢 Description: Software Engineer (Kotlin / Python / JavaScript) Location: Kraków or Warsaw (hybrid — 5 days per month in the office) Contract type: B2B — 130–140 PLN/h Project: Long-term international project About the Role We are looking for a Software Engineer to join a collaborative product team working in an iterative delivery model. The team is responsible for the full lifecycle of the product — from design and development to production support — following the principle: “you build it, you support it.” This role offers an opportunity to work with modern technologies across backend and frontend, while continuously learning new programming languages and tools. Key Responsibilities Work in a cross-functional team of 4–6 engineers Break down requirements into user stories and deliver iteratively to production Design technical solutions aligned with architectural guidelines Provide production support, including troubleshooting bugs, performance, and security issues Identify and manage technical debt alongside new feature development Collaborate closely with team members, including pair programming Ensure high quality and maintainability of delivered solutions Requirements Minimum 5 years of relevant commercial experience Experience with at least one programming language (Kotlin, Python, or JavaScript preferred) Willingness to learn multiple technologies across backend and frontend Working knowledge of Unix/Linux environments Understanding of databases from a usage perspective (MongoDB, Redis, PostgreSQL) Experience with HTTP APIs (RESTful services) Good English communication skills (team communication in English) Nice to Have Knowledge of .NET / C# What We Offer Hybrid work model — only 5 days per month from the office (Kraków or Warsaw) Private medical care (Medicover) Sports card (Multisport or equivalent) Life insurance Long-term, stable cooperation Opportunity to work with modern technologies in an international environment Support for professional development and learning

🏢 Summary: Remote Senior Android Developer role in the logistics industry focused on building and maintaining complex mobile applications through Kotlin and modern Android practices. The project runs until the end of 2026 with possible extension and includes responsibilities such as code reviews, mentoring, architecture design, testing, and CI/CD processes. The position emphasizes high code quality, scalability, and collaboration within an experienced development team. 🗂️ Requirements: 5+ years of Android development experience, Strong Kotlin expertise, Experience designing complex mobile applications, Experience with code reviews and pair programming, Mentoring experience, Knowledge of MVVM, Knowledge of Clean Architecture, Knowledge of SOLID principles, Experience with automated testing, Experience with CI/CD, Experience managing release processes, Knowledge of Git, Understanding of Material Design and UI/UX best practices, Advanced English (B2+) 📃 Skills: Android, Kotlin, MVVM, CI/CD, Git, SOLID, Material, UI/UX 🏢 Description: About the Project We are looking for Senior Android Developer to join a project from logistics industry . Work Mode: remote Start of the project: ASAP Duration of the project: till the end of December 2026, with an option to extend Job Responsibilities Take part in code reviews and pair programming to uphold high code quality while consistently applying industry standards and best practices Lead and promote continuous improvements within the team Support and mentor junior team members, helping them strengthen their skills and deepen their understanding of best practices Improve and optimize existing code to enhance its quality, performance, maintainability, and scalability Evaluate and interpret user requirements and business goals to effectively steer the development process and define project direction Assist in creating and maintaining thorough project documentation Provide ongoing maintenance and support for software applications, resolving issues in a timely manner Develop and implement automated tests to ensure reliability and proper functionality of the code Expectations Min. 5 years of experience Strong, hands-on experience with Android development and deep knowledge of the Kotlin programming language, including modern Android development tools and best practices Proven experience designing and architecting complex mobile applications Hands-on experience with code reviews, pair programming, and mentoring other developers Strong knowledge of mobile software architecture patterns, including MVVM, Clean Architecture, and SOLID principles A strong advocate of automated testing and test-driven practices Experience with Continuous Integration and Continuous Deployment (CI/CD) , as well as managing release processes . Solid understanding of Git version control Good grasp of UI/UX best practices and Material Design guidelines English on an advanced level (min. B2) 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: B2B contract role for an experienced Android Mobile Engineer to design and develop scalable native applications for a large-scale e-commerce platform. The position focuses on building high-quality Android apps using Kotlin and Jetpack Compose, with strong ownership over architecture and engineering standards. Work is in an elastic hybrid model with long-term cooperation on a high-traffic system. 🗂️ Requirements: Fluent Kotlin and Jetpack Compose experience, Strong knowledge of Android SDK and native Android development, Practical knowledge of OOP, algorithms, and data structures, Experience with Gradle build system, Experience with CI systems, Ability to design scalable and maintainable mobile architecture, English at B2 level 📃 Skills: Kotlin, Jetpack, Compose, Android, SDK, Gradle, CI/CD, OOP, TDD, KMM, Copilot 🏢 Description: Salary: 800 - 1080 PLN/MD + VAT (B2B) Remote: elastic hybrid from Warsaw (1-2 times per week) Why choose this offer? Impact on the development of the largest e-commerce system in Poland You can expect a flexible work organization Long-term cooperation within a stable ecosystem The Jit community will bring you a nice time during regular integration meetings Project We are looking for an experienced Mobile Engineer (Android) to join a newly established team dedicated to one of Poland’s leading e-commerce companies. In this role, you will combine strong technical expertise with autonomy in delivering high-quality native Android applications . You will play a key role in shaping the architecture, development standards, and engineering practices within the team, working on modern, scalable mobile solutions. You will design, build, and optimize Android applications using Kotlin and Compose, ensuring smooth performance, maintainability, and scalability. In addition to hands-on development, you will contribute to technical initiatives, best practices, and team knowledge sharing in a collaborative, innovative environment. Expected competences and knowledge Fluent in Kotlin and the Compose framework for UI In-depth knowledge of Android SDK and native Android development Practical knowledge of Object-Oriented Programming (OOP), algorithms, and data structures Familiarity with Gradle build processes and experience with Continuous Integration (CI) systems High degree of autonomy in organizing work and strong problem-solving skills Good communication skills in English (B2-level) Nice to have: Experience with modular architecture, e.g., Kotlin Multiplatform Mobile (KMM) Experience working with large codebases Practical knowledge of Test-Driven Development (TDD) and Pair Programming Experience with AI-aided software development, like Copilot Technologies you'll work with Kotlin Jetpack Compose Android SDK Gradle & CI/CD tools TDD AI-assisted development tools Client – why choose this particular client from the Jit portfolio? Our Client dominates the Polish e-commerce arena as the market leader since 1999 . With a user base of over 20 million and growing, this well-established platform is at the forefront of e-commerce, constantly striving for growth through market expansion and investment. As a major player in technology, our Client boasts a talented IT team of over 1,000 employees who focus on developing their own cutting-edge technologies. Jit Team has had a successful partnership with our Client since spring 2021 , with multiple software development teams dedicated to our Client's platforms. These teams operate autonomously, designing platform components through micro-services. Working with our Client offers a chance to contribute to a solution used by millions on a daily basis and to tackle the challenge of delivering software at a massive scale , where even a single second of delay can have a significant impact. This project provides a unique opportunity to work with state-of-the-art technologies and tools, making it a rare and valuable experience. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: Long-term B2B contract for a Senior Android Developer to design and implement Android applications in a fintech onboarding domain. The role combines Kotlin/Jetpack Compose mobile development with Java-based microservices and REST integration in a hybrid work model. The position involves architectural guidance and close collaboration with cross-functional teams. 🗂️ Requirements: 5+ years of Android development experience, Proficiency in Kotlin, Experience with Jetpack Compose, Strong knowledge of Android SDK, Hands-on experience with Architecture Components, Experience with OkHttp or similar networking tools, Strong understanding of Java, Experience with Spring framework, Experience with microservices integration, Working knowledge of SQL, Experience with unit testing 📃 Skills: Kotlin, Java, Android, Jetpack, Compose, SDK, Spring, Microservices, REST, SQL, OkHttp, MVVM, Koin, Fintech 🏢 Description: GENERAL INFORMATION: Industry : fintech Location : Warsaw (hybrid work model - 2x month in the office) Rate : up to 165 PLN/h Form of cooperation: B2B Project duration : long-term ROLE SUMMARY : The Android Developer role is focused on facilitating customer onboarding while maintaining the fintech app functionality across diverse markets. MAIN RESPONSIBILITIES: The primary duty of the Android Developer is to design and implement robust Android applications while collaborating across teams. Design and implementation of Android applications using Kotlin and Jetpack Compose. Build and optimize Java backend microservices and REST endpoints. Translate business requirements into technical solutions in collaboration with stakeholders. Act as a technical reference point for team members and guide architectural decisions. Encourage innovation and the adoption of new technologies for operational excellence. Communicate complex technical concepts to non-technical stakeholders effectively. Foster a culture of mentorship and shared learning within the team. Communicate clearly in both Polish and English while adapting language for diverse audiences. KEY REQUIREMENTS: 5+ years of experience in Android development. Proficiency in Kotlin, Google Jetpack Compose, and Android SDK. Hands-on experience with Architecture Components and networking tools such as OkHttp. Strong understanding of Java, Spring and microservices integration. Working knowledge of SQL and experience with unit testing. NICE TO HAVE: Experience in the Fintech industry. Knowledge of Koin DI and MVVM architecture. A proactive mindset and excellent communication skills. OTHER DETAILS: The position is based in Warsaw, within a team structure of 2 developers, 1 tester, a scrum master, a product owner, and business analysts. The work model is hybrid, requiring 2 office days per week, with flexible working hours.

🏢 Summary: Long-term B2B contract for an Android Developer in a fintech project focused on customer onboarding and maintaining mobile app functionality across multiple markets. The role involves building Android applications with Kotlin and Jetpack Compose and contributing to Java-based backend microservices and integrations. The position combines mobile development with backend collaboration in a hybrid work model. 🗂️ Requirements: 5+ years of Android development experience, Proficiency in Kotlin, Experience with Jetpack Compose, Strong knowledge of Android SDK, Hands-on experience with Architecture Components, Experience with OkHttp or similar networking tools, Strong understanding of Java, Experience with Spring framework, Experience with microservices integration, Working knowledge of SQL, Experience with unit testing 📃 Skills: Android, Kotlin, JetpackCompose, AndroidSDK, ArchitectureComponents, OkHttp, Java, Spring, Microservices, SQL, UnitTesting 🏢 Description: GENERAL INFORMATION: Industry : fintech Location : Warsaw (hybrid work model - 2x month in the office) Rate : up to 165 PLN/h Form of cooperation: B2B Project duration : long-term ROLE SUMMARY : The Android Developer role is focused on facilitating customer onboarding while maintaining the fintech app functionality across diverse markets. MAIN RESPONSIBILITIES: The primary duty of the Android Developer is to design and implement robust Android applications while collaborating across teams. Design and implementation of Android applications using Kotlin and Jetpack Compose. Build and optimize Java backend microservices and REST endpoints. Translate business requirements into technical solutions in collaboration with stakeholders. Act as a technical reference point for team members and guide architectural decisions. Encourage innovation and the adoption of new technologies for operational excellence. Communicate complex technical concepts to non-technical stakeholders effectively. Foster a culture of mentorship and shared learning within the team. Communicate clearly in both Polish and English while adapting language for diverse audiences. KEY REQUIREMENTS: 5+ years of experience in Android development. Proficiency in Kotlin, Google Jetpack Compose, and Android SDK. Hands-on experience with Architecture Components and networking tools such as OkHttp. Strong understanding of Java, Spring and microservices integration. Working knowledge of SQL and experience with unit testing. NICE TO HAVE: Experience in the Fintech industry. Knowledge of Koin DI and MVVM architecture. A proactive mindset and excellent communication skills. OTHER DETAILS: The position is based in Warsaw, within a team structure of 2 developers, 1 tester, a scrum master, a product owner, and business analysts. The work model is hybrid, requiring 2 office days per week, with flexible working hours.

🏢 Summary: Senior Mobile Developer role for a large-scale e-commerce mobile application focused on ad delivery and user experience improvements. The position involves designing, developing, and optimizing high-performance Android features while collaborating with cross-functional teams in a fast-paced environment. The offer includes remote work with occasional visits to Warsaw and a high degree of team autonomy. 🗂️ Requirements: 5+ years of commercial Android development experience, Strong Kotlin knowledge, Experience with MVVM, MVI, or Clean Architecture, Experience with REST APIs, Knowledge of asynchronous programming, Ability to write unit and integration tests, Experience with Git, Understanding of software engineering principles, data structures, and algorithms, Experience with CI/CD pipelines, English communication skills 📃 Skills: Kotlin, Android, REST, Git, MVVM, MVI, CI/CD, RxJava, RxKotlin, Coroutines, JetpackCompose 🏢 Description: Salary: 1000 - 1200/ MD + VAT (B2B) Remote: remotely (with occasional visits to the client's office - Warsaw) Why choose this offer? Working in a team you can always count on we have on board top-class specialists and experts in their areas of expertise A high degree of autonomy in terms of organizing your teams work - we encourage you to develop continuously and try out new things Work on a consumer-focused mobile project improving category experience and user interactions, directly impacting business results Project We are looking for a Senior Mobile Developer to support a project for one of Poland’s leading e-commerce platforms. The engineer will work within a team responsible for the technological layer of ad delivery in a large-scale mobile application. You will work closely with product owners, designers, and other engineers to translate user needs into robust, high-performance mobile experiences . This role is ideal for someone with solid experience in mobile development, a strong understanding of software engineering principles, and a desire to grow their expertise in a fast-paced e-commerce environment. What you will be doing on this postion: Design, develop, test, and deploy features, ensuring high quality, performance, and responsiveness Collaborate with product, design, and other engineering teams to define and implement innovative solutions Participate in code reviews, contribute to technical discussions, and help maintain high code quality standards Identify and resolve performance and scalability issues Continuously improve our development processes, tools, and infrastructure Expected competences and knowledge 5+ years of commercial experience in native Android development (Kotlin) Strong understanding o f mobile application architecture patterns (e.g., MVVM, MVI, Clean Architecture) Experience with REST APIs and asynchronous programming Proficiency in writing unit and integration tests Familiarity with version control systems (e.g., Git) Solid understanding of software engineering principles, data structures, and algorithms Experience with continuous integration and continuous delivery (CI/CD) pipelines Good communication skills in English, both written and spoken Nice to have : Experience with high-traffic mobile applications Knowledge of RxJava/RxKotlin, Coroutines, or Jetpack Compose Familiarity with A/B testing Open-source contributions or active GitHub profile Experience in Agile/Scrum environments Technologies you'll work with Kotlin (Android) REST APIs Git Jetpack Compose Coroutines / RxJava Client – why choose this particular client from the Jit portfolio? Our Client dominates the Polish e-commerce arena as the market leader since 1999 . With a user base of over 20 million and growing, this well-established platform is at the forefront of e-commerce, constantly striving for growth through market expansion and investment. As a major player in technology, our Client boasts a talented IT team of over 1,000 employees who focus on developing their own cutting-edge technologies. Jit Team has had a successful partnership with our Client since spring 2021 , with multiple software development teams dedicated to our Client's platforms. These teams operate autonomously, designing platform components through micro-services. Working with our Client offers a chance to contribute to a solution used by millions on a daily basis and to tackle the challenge of delivering software at a massive scale , where even a single second of delay can have a significant impact. This project provides a unique opportunity to work with state-of-the-art technologies and tools, making it a rare and valuable experience. About Jit Team The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts . We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme. Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity . By supporting indigenous initiatives, we ensure the circulation of good energy.

🏢 Summary: B2B contract for a Senior Android Developer to join a long-term remote project in the banking sector, focused on developing and maintaining modern mobile applications. The role emphasizes high-quality architecture, scalability, security, and collaboration within large distributed teams. The project starts ASAP with standard working hours. 🗂️ Requirements: Minimum 5 years experience as Android Developer, Minimum 2 years experience with Kotlin Multiplatform, Experience in banking sector, Very good knowledge of Clean Architecture, Very good knowledge of SOLID principles, Experience with MVI architecture, Minimum 2 years experience with RxJava and Kotlin Coroutines, Experience with Koin, Experience with OkHttp, Experience with Jetpack Compose and Compose Multiplatform, Experience with JUnit4, MockK and screenshot testing, Experience with Zuul CI, Experience with Git and Gerrit, Experience in code review in large teams 📃 Skills: Kotlin, Android, KotlinMultiplatform, RxJava, Coroutines, Koin, OkHttp, JetpackCompose, ComposeMultiplatform, JUnit4, MockK, Roborazzi, ZuulCI, Git, Gerrit, MVI, CleanArchitecture, SOLID, BDD, Scrum 🏢 Description: Hays IT Contracting to współpraca oparta na zasadach B2B. Nasza firma dopasowuje specjalistów IT do najciekawszych projektów technologicznych na rynku. Dołącz do grona 500 zadowolonych Kontaktorów i pracuj dla Klientów Hays! Obecnie dla naszego Klienta poszukujemy osoby na stanowisko: Senior Android Developer Lokalizacja: Praca zdalna Godziny pracy: standardowe Rodzaj umowy: B2B Stawka: 140 - 160 PLN/h net + vat Czas trwania projektu: współpraca długofalowa Start: ASAP O projekcie Dołączysz do zespołu odpowiedzialnego za rozwój nowoczesnych aplikacji mobilnych w obszarze bankowości. Pracujemy w oparciu o nowoczesne technologie i wysokie standardy architektoniczne, z naciskiem na jakość kodu, skalowalność i bezpieczeństwo. Twoje zadania Projektowanie, rozwój i utrzymanie aplikacji mobilnych na Androida Implementacja architektury zgodnie z najlepszymi praktykami (Clean Architecture, SOLID) Praca z asynchronicznością (RxJava, Kotlin Coroutines) Udział w code review w dużych, rozproszonych zespołach Tworzenie testów (BDD) i dbanie o wysoką jakość kodu Analiza oraz rozwiązywanie problemów technicznych Wymagania Min. 5 lat doświadczenia jako Android Developer Min. 2 lata doświadczenia z Kotlin Multiplatform Doświadczenie w bankowości Bardzo dobra znajomość: Clean Architecture, SOLID MVI (architektura prezentacji) Doświadczenie w: Asynchroniczności: RxJava, Kotlin Coroutines (min. 2 lata) Dependency Injection: Koin Komunikacji sieciowej: OkHttp Praca z UI: Jetpack Compose, Compose Multiplatform Testowanie: JUnit4, MockK, testy screenshotowe (Roborazzi) CI/CD: Zuul CI Systemy kontroli wersji: Git / Gerrit Doświadczenie w code review w dużych zespołach Samodzielność i umiejętność rozwiązywania problemów Kompetencje miękkie Umiejętność analitycznego myślenia i rozwiązywania problemów Samodzielność i inicjatywa Umiejętność pracy zespołowej (Scrum) Dobra komunikacja z interesariuszami biznesowymi Jak będzie wyglądał proces rekrutacji: Twoje CV zostanie zweryfikowane przez rekrutera Hays Rekruter skontaktuje się z Tobą telefonicznie – 15-minutowa rozmowa o projekcie i Twoim doświadczeniu Rozmowa techniczna z klientem Oferta Witamy w projekcie! Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361