ZEGOCLOUD Flutter Engineer

About Drago LiveDrago Live is a live streaming + virtual gifting + gaming app (think Bigo/Poppo/Tango vibes) built with Flutter & Dart. We use ZEGOCLOUD UI Kit & SDK for live video, beauty filters, PK battles, audio rooms, and more. We’re scaling fast and need a senior engineer who knows ZEGOCLOUD inside out.RoleOwn the end-to-end integration and optimization of ZEGOCLOUD features in our Flutter app across Android and iOS—from beauty filters to PK battles and moderation controls—while keeping performance silky smooth and battery-friendly.What you’ll build• Live Streaming: host/guest flows, co-hosting, PK battles, multi-guest, invite/signaling.• Beauty/Effects: beauty filters, stickers/overlays, effect intensity controls, device-adaptive quality.• Realtime Comms: 1:1 & group video/voice calls, audio rooms, spatial audio (if supported).• Chat & Signaling: room chat, reactions, gifts, robust reconnect & state sync.• Room Management: create/join/end, seat management, permissions, host tools.• Moderation: mute/kick/ban, content safeguards, report flows, admin dashboards hooks.• Virtual Gifting: gift animations, lucky gifts, combos, gift-led events & counters.• Performance: fps/bitrate tuning, thermal & energy optimization on iOS, crash-free stability.• Platform Plumbing: push notifications, deep links/universal links, background modes (nice to have).Must-have skills• 3+ shipped Flutter apps with substantial ZEGOCLOUD UI Kit/SDK integration.• Strong grasp of ZegoExpressEngine concepts: rooms, streams, tokens, signaling.• Implemented beauty filters, PK battles, audio rooms, stickers, and virtual gifting in production.• Proven performance tuning: bitrate ladders, CPU/GPU tradeoffs, device gating, thermal handling (iOS).• Solid iOS & Android platform chops: entitlements, background modes, permissions, ProGuard/obfuscation.• CI/CD familiarity for Flutter (fastlane, code signing, Play/App Store basics).Nice to have• Experience with Parse Server or similar BaaS, Firebase Messaging, Dynamic/Universal Links.• Anti-abuse/mod tooling (rate limits, moderation queues).• Analytics & A/B testing for engagement features.Hardware / Work setup• MacBook required (for iOS builds/signing).• iPhone preferred for on-device testing (Android device also preferred).• Remote OK; strong async communication and fast iteration expected.Success looks like• < 2s stream start time on good networks.• < 300ms end-to-end latency for interactive features (where feasible).•