Android Developer (Kotlin)

About the Project We are looking for Senior Android Developer to join a project from logistics industry.    Work Mode: remoteStart of the project: ASAP Duration of the project: till the end of December 2026  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.