About Zumlo
Zumlo is an always-on well-being companion—one place for immediate help, gentle structure, and progress you can see. We unify mind, body, emotions, and relationships through timely support, a caring community, and personalized guidance that fits real life.
What we stand for : Human first
complex
Privacy & trustEvidence over hypeInclusive by default.The role
You’ll own our React Native app. First : understand the existing codebase quickly and stabilize what matters. Then : lead architecture, performance, and product polish while working closely with back-end (REST APIs), design, and our Python / AI services to ship thoughtful, reliable features.
What you will do
Take over & stabilize
Map the codebase (state, navigation, data flows), surface risks, pay down critical debt.Establish clean release hygiene : versioning, changelogs, OTA strategy (CodePush / EAS), crash / error budgets.Build forward (React Native core)
Lead architecture, navigation, and state management (Redux / RTK, Recoil, or Zustand—choose and justify).Build pixel-perfect, accessible UI; smooth micro-interactions (Reanimated / Skia / Lottie when it adds real value).Implement offline-first patterns (TanStack Query / React Query, background sync, retry queues).Own deep links, push notifications, secure storage (Keychain / Keystore), permissions UX, theming / dark mode, and i18n readiness.Work seamlessly with the back-end
Integrate REST APIs (and GraphQL if needed) with typed clients, timeouts / retries, idempotent actions, and crisp error boundaries.Collaborate on contracts and versioning with back-end; keep DTOs / types generated and in sync.Integrate AI sanely
Consume LLM-powered endpoints from our Python services (streaming UIs, tool results).Handle partial / streaming states, guardrails, redaction in telemetry, and graceful fallbacks.Quality, performance, release
Testing : Jest + React Testing Library for units; Detox for critical E2E flows; snapshot tests for visual regressions.Performance : Hermes / Flipper profiling, bundle size budgets, frame-rate targets, network / memory discipline.Ops : Store submissions (App Store / Play), OTA, crash reporting / analytics (Sentry / Firebase), feature flags / experiments.Stewardship & collaboration
Keep small diffs, crisp PRs, and docs (setup scripts, architecture notes, “how to ship” playbooks).Partner with Product, Design, Back-end, and AI; mentor juniors; help interview the next mobile hire.Must-have experience
5–8+ years in mobile / front-end; 3+ years in React Native + TypeScript on production apps.Shipped and operated at least one RN app on both stores (release cadence, hotfixes, telemetry).Deep experience with state, navigation, testing (Jest / Detox), and performance (Hermes / Flipper).Strong REST API integration : typed clients, offline strategies, resilient error handling, analytics hooks.Comfortable with CI / CD, store processes, OTA updates, crash / analytics tooling.Strong plus
Experience shipping AI-adjacent flows (streaming / chat UIs, tool results, rate-limit states).Accessibility expertise (meaningful labels, focus management, dynamic type).Design systems / theming; localization; growth surfaces (onboarding, paywalls, referrals).Worked across US + India time zones; comfortable with fast, respectful feedback loops .How you work (what we actually value)
Owner’s mindset : quality, performance, clarity—end to end.Craft + pragmatism : polish where it matters; ship small and often.Calm reliability : predictable releases, helpful alerts, boring incidents.Clear communication : tight specs, crisp PRs, thoughtful comments.Kind and direct : low ego, high bar, shared standards.Work setup
Remote-first in India, collaborating closely with a small core team.Preference for Ahmedabad for an eventual in-person cadence; open across India for the right fit.