Senior Android Engineer

Job description

Every day, patients recovering from stroke open our app to do their therapy. They count on it being fast, accurate, and smooth — in a clinic waiting room, at home, sometimes with only one working hand. nyra health builds the digital solutions that make neurological rehabilitation work outside clinic walls: myReha, the patient therapy app, and nyra insights, the clinician platform. 100+ clinics across DACH rely on both. We've raised €20M Series A and are scaling our team. nyra's Android app is the primary interface between patients and their recovery. It runs ML-powered speech feedback in real time, serves hundreds of therapy exercises, and must stay rock-solid across clinic tablets from 2018 and the latest Pixels. You'll join a small, strong Android team with real ownership and a direct impact on the product. What you'll work on The therapy experience, end-to-end — you own the Android surface patients open every day as part of their recovery. Speech exercises, cognitive tasks, multimedia flows — you set the bar for how they feel, how fast they are, and how they grow. ML in production — you're the bridge between our ML team's models and the patient's moment of use. You shape how speech feedback surfaces in the UI — latency, confidence, fallback states — so it feels instant and trustworthy. Device performance — you own the performance envelope across older clinic tablets and modern phones: startup time, memory, jank, offline resilience. Accessible product craft — partner with Product and Design on UI for users with partial mobility and cognitive load constraints Engineering standards that scale — as one of the senior engineers on the Android team, you shape how the codebase grows. Architecture decisions, code review culture, testing strategy — what you establish now compounds as the team does. What sets you up Strong track record on a scaling production app — you know what breaks under growth and how to prevent it 5+ years of professional Android development in Kotlin Strong grasp of Jetpack Compose, Coroutines, Hilt/Dagger, and MVVM/MVI architecture Quality-focused engineering — smooth animations, responsive UIs, and craftsmanship even in a clinical context AI-native development — we use Claude Code, Cursor, and AI-generated tests as daily infrastructure, not occasionally — and you bring this experience. Comfortable working cross-functionally with Product, Design, QA, and backend HTL/Bachelor/Master's in CS or comparable hands-on experience Nice to have: Firebase / NoSQL; multi-agent prompt chaining; performance profiling across device cohorts; offline-first sync strategies You'll thrive here if… You think about the end user — a patient relearning to speak after stroke — and let that guide technical decisions Performance on constrained hardware is a problem you've solved before and enjoy solving You balance clean architecture with shipping value fast, and know when to favour each You want to be close to ML/AI work, not just consume it Why nyra Patients first, always — everything we build is measured by patient outcomes, not engagement metrics. You're shipping therapy, not features. AI at the core — we integrate ML-powered speech recognition and therapy personalisation directly in the product. You'll work with the ML team, not just consume an API. Direct access — founders, ML engineers, and practicing clinicians are in the same room. Decisions move fast and you're part of them. AI-native culture — every engineer has Claude Pro and is expected to use AI tools daily. We're not experimenting; we've moved on. What we offer Attractive compensation and Phantom Stock Options €2,500 tech set up budget Wiener Linien Yearly Ticket Swapfiets bike L&D budget Claude Pro + AI tools Flexible working hours and the possibility to work from home Beautiful office in Vienna's First District The process Intro call — background, motivations, role, and nyra ~30 min Technical interview — walk us through a project you're proud of; we'll discuss implementation decisions, architecture, and what you'd change ~60 min Founders' interview — your approach, technical philosophy, and how you'd shape neurotherapy on Android ~45 min