Senior Flutter Developer

Senior Flutter DeveloperLocation:RemoteContract:PJ (full-time)Level:SeniorWe're building avirtual office platformfor remote and hybrid teams. It brings togetherpersistent rooms ,real-time presence ,audio/video (WebRTC) ,chat ,screen sharing ,collaborative boards , andimmersive spacesto boost connection, productivity, and team cohesion — all in one place.The RoleWe're looking for aSenior Flutter Developerfocused onmacOS Desktopto build and evolve our desktop client. You'll ship ahigh-performance, stable, and well-instrumentedapp that integrates video/audio, real-time features, and collaborative tools—while keeping top-tier code quality, testing, and documentation.Secondary scope:help maintainAndroid and iOSbuilds (feature parity, fixes, and releases).What You'll DoDesign, build, and maintain theFlutter macOSapp with clean architecture, modular layers, and reliablestate management .IntegrateRESTful APIsandreal-time services(e.g.,WebSockets/Streams ).ImplementA/Vfeatures (e.g., flutter_webrtc): device selection, camera/mic permissions, I/O routing, and stability under variable networks.Ensureobservabilityend to end: instrument product events/metrics; triage errors withSentry ; capture UX signals withMicrosoft Clarity(session replay/heatmaps) where applicable (web/embedded views); analyze performance traces and dashboards.Ownquality : unit, widget, and integration tests; CI checks; code reviews; technical docs.HandlemacOS distribution : code signing &notarization , entitlements,Hardened Runtime ,App Sandbox , Keychain; packageDMG/PKG ; manageauto-update(e.g., Sparkle).Collaborate with Product/Design/QA to refine requirements, edge cases, and acceptance criteria; keep specs tidy in Confluence and PRs clear.Team rituals & reporting:Attenddaily standups in Englishand other ceremonies (planning, grooming, demos, retros).KeepJiraup to date (status, links, attachments) andlog time entries (work logs)per task.Submit anend-of-day (EOD) daily report in Englishincluding:hours worked(per task), what was completed, current task & ETA, blockers, and plan for tomorrow.Secondary (Android & iOS):maintain parity when applicable, fix platform-specific issues, help withCI/CDandstore releases , monitor crashes/perf viaSentryand review UX insights withClaritywhen relevant.CPU & GPU Optimizations (primary focus)CPUMinimize rebuilds: effectivestate selection(BLoC/Riverpod/Provider),constconstructors, properKeys , split large widgets.Cut redundant layout/work: avoid heavy logic in build, cache computed values, reduce intrinsic measurements, coalesce events,debounce/throttlestreams.Move heavy tasks off the UI thread:isolates(compute/custom), lazy JSON parsing, incremental work units.Frame scheduling discipline: prevent setState loops; render only when state actually changes.GPUReduceoverdraw/repaints : placeRepaintBoundarywisely; optimizeCustomPainter(shouldRepaint); avoid largeOpacityon complex subtrees.Avoid expensive effects: minimizesaveLayer , heavyblurs/gradientsand bigshadows .Use right-sized images &filterQuality(low/none when acceptable); limit transforms on large layers.Shader jankcontrol: warm up shaders / captureSkSLwhere applicable; keep fragment shaders simple.Pause/disable animations when off-screen; keep animation count/area minimal.Measurement & Guardrails:Profile withFlutter DevTools(CPU/GPU/frame timeline) and addperf budgets(avg CPU%/GPU frame time) to CI gates.Track before/after metrics per feature; regressions must be fixed before release.Must-HavesFluent English(spoken and written): comfortable indaily English standupsand writing EOD reports.Strong experience withFlutterandDartbuildingDesktopapps (preferablymacOS ).Proven workreducing CPU/GPU usagein Flutter apps (ideally desktop/macOS) with measurable before/after results.Solid grasp ofarchitectural patterns( MVC/MVVM/Clean ),DI , andstate management(BLoC/Riverpod/Provider).Hands-on withRESTful APIs ,WebSockets/Streams ,async/isolates , and robust error handling.Firebase(Auth, Firestore, Analytics)or equivalent ,Microsoft Clarity(for UX/session insights in web-embedded contexts), andSentryfor error/performance monitoring.Git proficiency, code reviews, CI (e.g.,GitHub Actions/GitLab CI ), andJira work logs/time tracking .Nice to HaveDeepmacOSexpertise: signing,notarization ,App Sandbox , entitlements, Keychain, packaging, and updater pipelines.PracticalWebRTCexperience; spatial audio; jitter/latency tuning.Android/iOSpublishing (fastlane or equivalent), push notifications, and in-app review flows.Docker ,CDN , and networking basics for real-time apps.Accessibility (VoiceOver/TalkBack) and internationalization.Benefits & EnvironmentRemote-first, flexible hours, andcompetitive market range .Fast feedback loops, ownership, and a product with real impact on how teams work every day.Support for learning, events, and continuous improvement.