Chalice is a UA-based company, a trusted expert in digital solutions, rocking the sphere at every step. As a young forward-thinking team situated in Kyiv, we are proud to deliver excellence worldwide, turning dreams into goals. Key facts about Chalice: — Founded in 2007 — 80+ customers — Stable core team managing most of the projects from day1 — Focus on US and EU markets Here at Chalice, we deliver professional software development services in most tech domains, providing transparency, clarity, and most importantly — care for our customers. No surprise that all newcomers appreciate the: — Challenging projects on cutting-edge technologies — Professional team — Friendly atmosphere
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Senior Flutter Developer
Full Remote · Countries of Europe or Ukraine · 3 years of experience · English - B2Chalice LTD is expanding its team and is looking for a new Senior Flutter Developer with a passion for new technologies to join an exciting and growing project. The project is fast-growing sport startup, focused on tennis and AI features to bring the most...Chalice LTD is expanding its team and is looking for a new Senior Flutter Developer with a passion for new technologies to join an exciting and growing project.
The project is fast-growing sport startup, focused on tennis and AI features to bring the most innovative and cutting age experience for their mobile app users in order to improve the game to the next level.
Responsibilities
- Develop the mobile app (iOS/Android) incl. video capture, uploads, on-device UX, and offline capabilities.
- AI platform / backend integration: video ingestion, analysis/inference pipelines, API design, scaling & observability.
- ML/AI integration: integrate CV/pose/racket-tracking models (on-device and/or cloud); optimize inference (latency, cost).
- Security & privacy by design (GDPR-compliant), clean permissions/access model. Close collaboration with Coaching/Design on UX flows (Record → Insight → Drill → Progress).
Must-haves
- 5+ years as a software developer (with substantial mobile and backend/cloud experience).
- Hands-on Flutter or native (Swift/Kotlin).
- Solid backend/API experience
- Familiar with computer vision / ML integration (e.g., PyTorch/ONNX/TFLite, OpenCV, MediaPipe, pose estimation).
- Strong in architecture, testing, performance, observability. Self-starter, product thinking, build–measure–learn mindset.
- Fluent English (English advantageous; team distributed across Germany).
Nice-to-haves
- Experience with video pipelines (FFmpeg, HLS, WebRTC, upload/transcode).
- Edge/on-device inference (TFLite/Metal/NNAPI), GPU/accelerators.
- Knowledge of App Store/Play Store release processes, Crashlytics, in-app purchases/subscriptions.
- Passion for tennis or racket sports.
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