Backend Kotlin Engineer - Mobile (Buenos Aires based)

Arionkoder is an AI consulting firm helping companies build, embed, and own AI systems that drive real business outcomes. We combine Product Development, Artificial Intelligence, and Team Augmentation to craft digital products and solutions that create lasting impact — guided by a human-centric approach and a commitment to pushing the boundaries of what technology can do. We are looking for a Kotlin Engineer (Buenos Aires based) to join Arion's team! We are seeking a Senior Software Engineer to anchor the Mobile Service Layer (MSL), the Backend-for-Frontend (BFF) that serves as the orchestration brain for premium travel applications. This isn’t a traditional CRUD backend role or a pixel-pushing UI position. We seek for an engineer who understands the native mobile lifecycle deeply enough to architect high-performance, mobile-optimized APIs at scale. You will be the technical bridge between native Android and iOS teams and a complex web of travel data partners, ensuring every mobile interaction is fast, reliable, and secure. If you thrive in a fast-paced, collaborative environment and appreciate leveraging your team's expertise to deliver high-quality solutions, this role might be for you! What you'll do: ● Architect the Orchestration Layer: Design and maintain scalable, Kotlin-based APIs that aggregate data from multiple enterprise sources into lean, performant payloads purpos...