Senior Flutter Developer

Senior Flutter Developer
Location:
Remote
Contract:
PJ (full-time)
Level:
Senior
We're building a
virtual office platform
for remote and hybrid teams. It brings together
persistent rooms ,
real-time presence ,
audio/video (WebRTC) ,
chat ,
screen sharing ,
collaborative boards , and
immersive spaces
to boost connection, productivity, and team cohesion — all in one place.
The Role
We're looking for a
Senior Flutter Developer
focused on
macOS Desktop
to build and evolve our desktop client. You'll ship a
high-performance, stable, and well-instrumented
app that integrates video/audio, real-time features, and collaborative tools—while keeping top-tier code quality, testing, and documentation.
Secondary scope:
help maintain
Android and iOS
builds (feature parity, fixes, and releases).
What You'll Do
Design, build, and maintain the
Flutter macOS
app with clean architecture, modular layers, and reliable
state management .
Integrate
RESTful APIs
and
real-time services
(e.g.,
WebSockets/Streams ).
Implement
A/V
features (e.g., flutter_webrtc): device selection, camera/mic permissions, I/O routing, and stability under variable networks.
Ensure
observability
end to end: instrument product events/metrics; triage errors with
Sentry ; capture UX signals with
Microsoft Clarity
(session replay/heatmaps) where applicable (web/embedded views); analyze performance traces and dashboards.
Own
quality : unit, widget, and integration tests; CI checks; code reviews; technical docs.
Handle
macOS distribution : code signing &
notarization , entitlements,
Hardened Runtime ,
App Sandbox , Keychain; package
DMG/PKG ; manage
auto-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:
Attend
daily standups in English
and other ceremonies (planning, grooming, demos, retros).
Keep
Jira
up to date (status, links, attachments) and
log time entries (work logs)
per task.
Submit an
end-of-day (EOD) daily report in English
including:
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 with
CI/CD
and
store releases , monitor crashes/perf via
Sentry
and review UX insights with
Clarity
when relevant.
CPU & GPU Optimizations (primary focus)
CPU
Minimize rebuilds: effective
state selection
(BLoC/Riverpod/Provider),
const
constructors, proper
Keys , split large widgets.
Cut redundant layout/work: avoid heavy logic in build, cache computed values, reduce intrinsic measurements, coalesce events,
debounce/throttle
streams.
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.
GPU
Reduce
overdraw/repaints : place
RepaintBoundary
wisely; optimize
CustomPainter
(shouldRepaint); avoid large
Opacity
on complex subtrees.
Avoid expensive effects: minimize
saveLayer , heavy
blurs/gradients
and big
shadows .
Use right-sized images &
filterQuality
(low/none when acceptable); limit transforms on large layers.
Shader jank
control: warm up shaders / capture
SkSL
where applicable; keep fragment shaders simple.
Pause/disable animations when off-screen; keep animation count/area minimal.
Measurement & Guardrails:
Profile with
Flutter DevTools
(CPU/GPU/frame timeline) and add
perf budgets
(avg CPU%/GPU frame time) to CI gates.
Track before/after metrics per feature; regressions must be fixed before release.
Must-Haves
Fluent English
(spoken and written): comfortable in
daily English standups
and writing EOD reports.
Strong experience with
Flutter
and
Dart
building
Desktop
apps (preferably
macOS ).
Proven work
reducing CPU/GPU usage
in Flutter apps (ideally desktop/macOS) with measurable before/after results.
Solid grasp of
architectural patterns
( MVC/MVVM/Clean ),
DI , and
state management
(BLoC/Riverpod/Provider).
Hands-on with
RESTful 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), and
Sentry
for error/performance monitoring.
Git proficiency, code reviews, CI (e.g.,
GitHub Actions/GitLab CI ), and
Jira work logs/time tracking .
Nice to Have
Deep
macOS
expertise: signing,
notarization ,
App Sandbox , entitlements, Keychain, packaging, and updater pipelines.
Practical
WebRTC
experience; spatial audio; jitter/latency tuning.
Android/iOS
publishing (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 & Environment
Remote-first, flexible hours, and
competitive 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.