ANDROID DEVELOPER WITH KOTLIN – Mid-Level (3+ years) Hybrid model at Porto, Portugal. Candidates must already be living in Portugal.Qualifications & Experience3+ years in mobile development, mastery of native Android (Kotlin)Strong experience with Coroutines, Flows, concurrency and state managementKnowledge of messaging systems (MQTT)Strong debugging skillsGood practices in testing, code quality and technical reviewGood practices in GitHub and continuous integrationExperience with hardware SDK integration (ideally scanner/RFID/barcode)Knowledge of EPC/GS1 and RFID reading filtersExperience with Clean/MVVM architecture and modular librariesKnowledge of mobile CI/CD and feature flagsExperience with limited connectivity/offline‐first environmentsClear communication with technical and non‐technical teamsEnd‐to‐end ownership (discovery, implementation, monitoring)Professional English levelResidence located between Aveiro and PortoDriving licenseHybrid remote work arrangement in São João da Madeira officeOptional Additional SkillsExperience with industrial RFID readers (e.g., Zebra/Bluebird)Benefits and OpportunitiesPersonalized career development, tailored to your needs and goalsInteresting challenges across multiple clients from diverse sectorsFree training programs: languages, tech, behavior and business certificationsInternational projects in Benelux for global experienceProject types:Hybrid systems – balance work with socializationFull remote projects – work from home comfortFull onsite projects – collaborate with colleagues in personWell‐being support: free nutrition, psychology, general medicine appointments, yoga and personal training (remote)Equal Opportunity Statement At KCS we stand for equality and value diversity. We create a safe, diverse environment where opportunities are equal for everyone. We do not discriminate based on age, ethnicity, sexual orientation, gender, disability or any factor other than merit. All applications with skills for the role are welcome.#J-18808-Ljbffr