AOSP Developer

🏢 Summary: Develop and enhance a flagship Android application, delivering scalable, high-quality features with strong performance and user experience. The role covers Android development, UI creation, testing, monitoring, and collaborative problem-solving in a product-focused team. 🗂️ Requirements: Kotlin, Object-oriented programming, Coroutines, Flow, Compose, MVVM, MVI, Clean Code, Gitflow, Commercial Android development experience, English technical documentation reading skills 📃 Skills: Kotlin, Coroutines, Flow, Compose, MVVM, MVI, Git, Gitflow, Android 🏢 Description: We are looking for a candidate for the position of Android Developer to join the team developing the flagship mobile application for XTB customers. In this role, you will be responsible for developing key application functionalities, with a focus on performance, code quality, and UX best practices. Your responsibilities will include: Creating and developing mobile applications on the Android platform in accordance with Clean Architecture and SOLID principles - you will design modern and scalable solutions based on proven architectural patterns; Creating clear application screens in accordance with best practices and UX patterns - you will ensure the intuitiveness and aesthetics of the user interface; Working to deliver business value by creating high-quality software - your solutions will truly support the company's goals and user needs; Writing unit and integration tests and monitoring applications - you will ensure the stability and reliability of the functionalities you create; Teamwork and active problem solving - you will be part of a committed team that works together to achieve the best possible results. Requirements: Very good knowledge of Kotlin and object-oriented programming, Advanced knowledge of reactive/streaming solutions (Coroutines/Flow), Advanced knowledge of Compose, Knowledge of design patterns and best practices (MVVM, MVI, Clean Code), Proficiency in version control systems and Gitflow, Commercial experience in Android programming, English language skills sufficient to read technical documentation. Nice to have: Knowledge of AI tools (e.g., Copilot) and using them to support daily work, gRPC, Room, Firebase, Gitlab CI, Architecture Components, Dependency Injection (Hilt), modularization, UI Tests, Figma, Experience working with Agile methodology (Scrum). We expect the Candidate to have: An active attitude focused on independently overcoming adversity - we are looking for someone who can work independently and is not afraid of challenges; A focus on delivering software that maximizes value for users and the business - we value an approach where technology supports real needs and goals; Proposing technical solutions that translate vision into working software - we expect initiative and commitment to the process of creating solutions from concept to implementation; Creativity in exploring different ways to achieve the same goal - openness to experimentation, seeking new approaches, and thinking outside the box. What we offer: Real influence on the development of the company and the product, Work in an experienced team that is happy to share its knowledge, A clear vision of development thanks to regular feedback and clear career paths, A training budget for courses and conferences that interest you, An extra day off on your birthday, An extra day off for parents, Equipment tailored to your needs, Private medical care and group insurance, Access to an e-learning platform for learning English and a benefits platform, Access to a wellbeing platform and the opportunity to take advantage of workshops and private therapy sessions, Remote work, from the office in Warsaw or from a coworking space in your city, Regular team-building meetings.

🏢 Summary: Senior Android Engineer role on confidential, next-generation IoT and connected-device products, working across Android, embedded, firmware, and hardware layers. The position includes building reliable Android applications, device onboarding, BLE communication, testing, and performance optimization, with regular on-site work required in Warsaw. 🗂️ Requirements: 6+ years of commercial Android experience, Proficiency in Kotlin and Java, Hands-on Jetpack Compose experience, Knowledge of Kotlin Coroutines and asynchronous programming, Unit testing and TDD experience, Dependency injection experience with Hilt or Koin, BLE device-communication experience, Understanding of Android SDKs, system components, and lifecycle, B2+ English communication skills, C/C++ familiarity for shared or native modules, Embedded or IoT ecosystem experience, Networking fundamentals: TCP, UDP, IP, REST, HTTP, WebSockets, Secure authentication and authorization knowledge: OAuth 2.0, OpenID Connect, session management, RBAC, Performance optimization and multithreading experience, Regular on-site presence in Warsaw 📃 Skills: Android, Kotlin, Java, JetpackCompose, Coroutines, TDD, Hilt, Koin, BLE, C, C++, IoT, TCP, UDP, IP, REST, HTTP, WebSockets, OAuth, OpenID, RBAC, Multithreading 🏢 Description: We are looking for a Senior Android Engineer to join an embedded-focused team augmentation project for a global consumer electronics brand. This role goes far beyond classic Android app development. You will work closely with embedded, firmware, and hardware teams on next-generation products and prototypes, taking ownership across the entire ecosystem, not just the mobile layer. Due to security requirements and the product’s confidential nature, this project requires regular on-site presence at our Warsaw office and cannot be fully remote. intent has over 10+ years of experience in helping to conceptualize, design, and build software for IoT and connected devices. We act as a specialized think partner for products at the intersection of physical and digital, from brand-new concepts to products entering competitive and established markets. Some of the brands we’ve worked with include Oura, BOSE, and McIntosh. What you’ll do Design, build, and maintain high-quality Android applications for IoT and connected devices Work close to hardware, firmware, and embedded teams , not just the mobile layer Implement device onboarding and setup flows Optimize performance, threading, and reliability in complex environments Review pull requests, give feedback, and help keep code quality high Write and maintain unit tests Take part in technical discussions, daily calls, and knowledge sharing Android experience 6+ years of commercial Android experience Strong proficiency in Kotlin and Java Hands-on experience with Jetpack Compose (Kotlin UI) Solid knowledge of Kotlin Coroutines and async programming Experience with unit testing / TDD Familiarity with dependency injection (Hilt, Koin) Strong experience building apps, communicating with devices over Bluetooth Low Energy (BLE) Understanding of Android internals (SDKs, system components, lifecycle) B2+ English , comfortable in everyday communication Cross-platform / Embedded / Ecosystem Familiarity with C/C++ for shared or native modules Experience working in or close to embedded / IoT ecosystems Understanding of networking fundamentals : TCP / UDP / IP REST / HTTP WebSockets Knowledge of secure authentication & authorization : OAuth 2.0 OpenID Connect Session management, RBAC Experience with performance optimization and multi-threading

🏢 Summary: Android Developer role focused on owning and improving an e-commerce mobile app’s Homepage and gamification features, including an advent calendar and daily scratch-card offers. The position covers end-to-end feature delivery, performance optimization, testing, and collaboration with product, design, and engineering teams in a hybrid work model. 🗂️ Requirements: 3+ years of native Android application development experience, Kotlin proficiency, Mobile architecture patterns knowledge, RESTful API experience, Asynchronous programming knowledge, Unit and integration testing proficiency, Git experience, Software engineering, data structures, and algorithms knowledge, CI/CD pipeline experience, English and Polish communication skills, Proactive problem-solving approach 📃 Skills: Android, Kotlin, MVVM, MVI, REST, Git, CI/CD, Algorithms, Testing 🏢 Description: About the job: As an Android Developer , you will take full ownership of the development and maintenance of our mobile application's Homepage – the central hub for our users. You will also be a key contributor to exciting gamification initiatives, including our interactive advent calendar and the "catcher" (a daily scratch-card with new offers). 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 Android development, a strong understanding of software engineering principles, and a desire to build engaging features in a fast paced e-commerce environment. Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 14 600 - 20 825 gross. Annual bonus based on your annual performance and company results. Our team is based in Poznań . What you'll do: Design, develop, test, and deploy features for the Allegro Android , 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. Be part of Allegro’s mobile community composed of more than 100 mobile developers. In our community, we actively share knowledge as part of our daily code review work and at dedicated company events. We have time dedicated to knowledge sharing as well as opportunities for personal skills development Identify and resolve performance and scalability issues. Stay up-to-date with the latest mobile technologies and industry trends. We are looking for someone who has: 3+ years of professional experience in native Android (Kotlin) mobile application development. Understanding of mobile application architecture patterns (e.g., MVVM, MVI, Clean Architecture). Familiar with RESTful APIs, asynchronous programming, and efficient data handling. Proficiency in writing unit and integration tests. Familiarity with version control systems (e.g., Git). Understanding of software engineering principles, data structures, and algorithms. Experience with continuous integration and continuous delivery (CI/CD) pipelines. Good communication skills in English and Polish, both written and spoken. A proactive approach to problem-solving and a passion for creating excellent user experiences. Bonus points if you have: Experience with large-scale, high-traffic mobile applications. Familiarity with Jetpack Compose and Coroutines. Experience with A/B testing frameworks. Contributions to open-source projects or a strong GitHub profile. Experience working in an Agile/Scrum environment. What's in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale, which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!