Senior Mobile Software Engineer (iOS/Android)

Listed as a remote role based in Budapest, Budapest, Hungary. Job description General Info We are developing a breakthrough imaging and 3D technology platform currently under provisional patent. In this role you will write the high-quality native iOS and Android code that serves as the mobile face of that platform — the apps through which end users capture, interact with, and experience the underlying technology. Working within an architecture set by the mobile and platform leads, you will focus on implementation craft: fast, correct, memory-efficient, platform-idiomatic code, and the performance and reliability of the features you ship. Must be an EU or Hungarian citizen; visas are not otherwise available for this position. Tasks Native Development Write and maintain fully native iOS (Swift) and Android (Kotlin) code, prioritising performance, reliability, and clean, platform-idiomatic implementation. Implement the mobile-to-backend communication layer — secure, low-latency, resilient to intermittent connectivity, and suitable for the transfer of imaging data. Integrate with platform-specific frameworks relevant to imaging and 3D, including AVFoundation, Core Image, and Metal on iOS, and CameraX, RenderScript, and Vulkan/OpenGL on Android, as the product requires. Implement navigation, state management, dependency injection, persistence, offline handling, and synchronisation with backend systems within the established app architecture. Performance, Quality & Release Optimise memory usage, threading, battery consumption, and runtime performance for imaging and 3D workloads on a range of device capabilities. Work within the release pipeline: CI/CD, code signing, beta distribution (TestFlight, Play Console internal testing), phased rollouts, and App Store / Play Store submissions. Write thorough tests (unit, integration, UI) and participate actively in code review, crash triage, telemetry, and on-call response. Address accessibility, localisation, and security requirements, including secure credential and data handling on-device (Keychain, Android Keystore, biometric authentication). Code Quality & Collaboration Write clean, well-documented, testable code and hold a high bar for correctness and maintainability in your own work and in code review. Partner closely with backend, product, and design; translate product requirements into concrete, well-scoped implementation work with realistic estimates. Contribute a mobile engineering perspective in design and code reviews, and share knowledge with peers on platform APIs and native implementation techniques. Take responsibility for the quality, correctness, and performance of the code you ship to production. Requirements Education & Experience Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience. A Master’s or advanced degree is welcomed but not required. Five or more years of professional software engineering experience, with substantial hands-on native development on both iOS and Android. Demonstrated track record of shipping high-reliability consumer or business mobile applications to the App Store and Google Play, including post-launch maintenance and iteration. Experience building mobile apps that integrate meaningfully with cloud or on-premise backend systems, including secure authentication and data-transfer protocols. Skills & Competencies Expert-level proficiency in Swift and Kotlin, with fluency in modern language features, concurrency models, and idioms. Deep understanding of iOS and Android platform architectures, lifecycle, memory management, threading models, and performance tooling. Comfort with platform build systems (Xcode, Gradle) and release tooling (Fastlane, Firebase Distribution, or similar). Ability to translate complex technical concepts for non-engineering collaborators, and to communicate implementation trade-offs clearly. Ability to handle confidential and pre-patent technical material with discretion, and to follow the Company’s IP and data-handling policies rigorously. High degree of curiosity, craftsmanship, and resilience; calm and methodical under production pressure. Additional Preferred Experience Prior experience with mobile imaging, computer vision, camera pipelines, or 3D rendering — shipped products, research, or substantial personal projects. Experience with C++ for shared performance-critical code across platforms, even if the current architecture is fully native. Experience in early-stage startup or innovation-lab environments, with first-of-its-kind products. Contributions to open-source mobile libraries, or a public portfolio (shipped App Store / Play Store apps, sample code) demonstrating native code quality. Candidates must be eligible to work in Hungary, with fluent English knowledge, both written and oral. Compensation The base salary range for this position is HUF 2,000,000 – HUF 2,500,000 gross per month, paid in twelve monthly installments. The range reflects a full-time, senior individual-contributor engagement and is calibrated to the Hungarian market for senior mobile engineers with deep native iOS and Android expertise. The offered starting salary within this range will be determined on the basis of objective, gender-neutral criteria, including the candidate’s demonstrated depth of native iOS and Android expertise, breadth of relevant imaging, 3D, or performance-engineering experience, track record of shipped production work, and depth of hands-on native-code contributions. Advanced degrees, specialised domain knowledge, and meaningful contributions in adjacent areas (for example, mobile imaging, computer vision, or cross-platform C++) are factors that may justify positioning toward the upper end of the range. In addition to base salary, the total compensation package includes a discretionary performance bonus and statutory and customary benefits as applicable under Hungarian law. Details of the bonus component will be discussed with shortlisted candidates. This salary range is disclosed in accordance with the pay transparency obligations arising from Directive (EU) 2023/970 and its transposition into Hungarian law. Candidates will not be asked about their prior or current compensation at any stage of the recruitment process. Show more Show less Seniority level Not Applicable Employment type Full-time Job function Engineering and Information Technology Industries Technology, Information and Media