Software Engineer 1 (Backend / Mobile) - Listings (Mobile Apps)

Grupa Allegro Sp. z o. o. is hiring for its Listings (Mobile Apps) team, part of Allegro Tech, which manages over 1000 microservices, an open-source data bus, a Service Mesh, and production-used machine learning. The team is undergoing a transformation migrating backend services to Kotlin and JVM, building next-generation shopping experiences with advanced technologies including LLMs.

• Minimum 2 years commercial experience in software engineering with strong backend skills
• Proficiency and readiness to work with Kotlin and the JVM ecosystem
• Passion for mobile applications and ambition to learn native mobile technologies (iOS/UIKit/SwiftUI or Android/Jetpack Compose)
• Fluency in Polish at minimum B2 level
• Open mind, flexibility, and willingness to learn in a changing environment
• Proactive problem-solving attitude

Nice to have:

• Previous commercial experience with iOS or Android mobile technologies
• Mindset adaptable to evolving team and technology environments
• Interest in working with AI-native capabilities and modernizing high-traffic services

• Contribute to backend and mobile development for Listings and Filters features in Allegro's mobile apps
• Work with Kotlin, JVM, Spring Boot 4, and Spring GraphQL on backend services
• Develop and support native mobile technologies (iOS/UIKit/SwiftUI and/or Android/Jetpack Compose)
• Take proactive, end-to-end ownership of delivered functionalities
• Adapt to evolving team structure and tech stack
• Collaborate within a highly experienced team during platform transformation