RN with the New Architecture
Fabric renderer + TurboModules + Hermes engine. Bridgeless mode where supported. Real native interop, not the legacy bridge.
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Senior engineering · React Native
Senior React Native engineering for production systems.
React Native for cross-platform reach — TypeScript, the New Architecture (Fabric / TurboModules), Expo where it fits, and the native-module discipline most teams skip and pay for later.
- In production
- 2019+
- Senior bench
- 20+ G6/G9 engineers
- Floor
- G6+ on client work
- Engagement
- Outcome-led, not hourly
Why senior, not contractor
React Native in production is a different problem than React Native on a laptop.
React Native is right when the team can absorb the platform-specific knowledge it still requires, when the perf and animation budgets fit cross-platform, and when business logic genuinely shares between iOS and Android. Prosigns ships RN with the New Architecture (Fabric + TurboModules + Hermes), TypeScript-strict, native-module discipline for the platform features cross-platform abstractions don't reach, and OTA delivery via EAS / CodePush done responsibly.
Senior floor
G6+ minimum
Bench depth
20+ G6/G9 engineers
In production
2019+
Engagement
Outcome-led SOW
Where React Native ships
6 sub-areas, grounded in shipped engagements.
Specific applications of React Native we’ve built and operate. Every example below maps to a real engagement, not a bullet on a stack-card.
01 02 Expo + EAS Build pipeline
Expo SDK where it fits, custom dev clients where it doesn't. EAS Build for managed CI/CD, EAS Update for over-the-air delivery.
03 Custom native modules
Native modules in Swift / Kotlin for platform features RN abstractions don't expose. Codegen-driven for type safety across the bridge.
04 Reanimated + Gesture Handler
60/120fps animations on the UI thread, complex gesture composition, shared element transitions. The animation story RN was missing for years.
05 Offline-first + sync
WatermelonDB, Realm, op-sqlite. Conflict resolution designed for the workload, sync tested on real low-end Android.
06 RN web (with caveats)
Code-share with web via Solito / Tamagui where the workload genuinely benefits. Honest assessment of when separate web is the right call.
Stack depth
The React Native ecosystem, owned.
Frameworks, libraries, and runtime tools the bench has shipped in production. Not a CV-skim — a working depth.
Core
- React Native 0.74+
- Hermes
- Fabric
- TurboModules
- Expo SDK
Animation + UI
- Reanimated 3
- Gesture Handler
- Skia
- Tamagui
- Tailwind RN
Navigation
- React Navigation
- Expo Router
- Solito
Data + sync
- WatermelonDB
- Realm
- op-sqlite
- PowerSync
- Replicache
Build + ops
- EAS Build
- EAS Update
- Sentry
- Firebase
- Detox
Engagement models
Three ways to engage React Native engineers.
We don’t bill hourly contractors. Engagements run against outcomes — choose the shape that matches the work.
See engagement models- 01
Fixed-scope
Defined deliverable, fixed price
When the deliverable is clear and the scope is bounded — an MVP, a migration, a discrete platform build. Senior engineering against a written outcome, not against a body count.
- 02
Embedded squad
Senior product team, ongoing
When the work is product-shaped and the cadence is continuous. A senior pod (engineering + design + PM as needed) embedded into your team, with the practice lead co-piloting from HELM.
- 03
Managed services
Steady-state operations
When the system is running and needs ongoing engineering ownership — operations, SLO defense, release management, security and compliance evidence. Monthly retainer against a published SLA.
Selected work
React Native engineering that shipped.
Retail
Cross-platform rewards app on React Native + Expo for a multi-brand retailer.
60fpsanimations on Pixel 4aRN 0.74 with Fabric + TurboModules. Reanimated 3 for transitions. Offline-first with WatermelonDB. Native modules in Swift / Kotlin for platform-specific loyalty SDK integrations.
Duration · 6 months
Brief us
Reply < 4 business hoursHave a React Native workload? Send a brief.
Five fields. Goes straight to the practice lead — not an SDR. We’ll reply with a senior engineer’s read on fit, scope, and the engagement model that suits the work.
FAQ
Questions buyers ask.
Everything below also appears in the proposal and the SOW — no surprises after signing.
Native (Swift / Kotlin) or React Native?
Native when performance is critical, when the app is hardware-deep (camera, AR, audio processing), or when the team has native specialists. RN when business logic shares between iOS / Android and the perf budget allows. We ship both — sometimes in the same engagement (native iOS + RN Android, or vice versa).
Expo or bare workflow?
Expo for most new apps — the dev experience is genuinely better and EAS Build / EAS Update are production-grade. Bare workflow only when custom native code or unsupported native modules force it. Custom dev clients bridge the gap when needed.
Is this staff-aug, or is it engineering-led delivery?
Engineering-led delivery. We don't bill hourly contractors against your JIRA board. Every engagement runs against a defined outcome with a senior engineer accountable from kickoff to operating cutover. If you genuinely need staff-aug — discrete bodies, your management, hourly rates — we'll be honest and route you to a partner that fits.
What seniority floor are we talking about?
G6 minimum (six-plus years in their craft) on every billable hour. Department leads are G9 or G10. We don't flex juniors onto the bench mid-sprint, we don't subcontract to delivery centers, and we don't dilute senior rates with mixed staffing. The bench in the proposal is the bench in production.
How does pricing work?
Three engagement models published at /engagement-models/. Fixed-scope for defined deliverables, embedded squads for ongoing product work, managed services for steady-state operations. Rates depend on seniority, engagement length, and region. Discovery + scoping conversation is free; SOWs are written against deliverables, not bodies.
Where are your engineers based?
Senior-only across Dallas, Doha, Lahore, and Islamabad. We staff against the engagement's needs (timezone, language, regulatory frame), not against arbitrary regional preferences. Most engagements run with a US/EU-aligned core and a follow-the-sun extended bench when the workload warrants it.
Will the engineers I see in the proposal be the engineers shipping the work?
Yes. We name the engineers in the SOW, attach their profiles, and they're on the kickoff. We don't bait-and-switch with senior reviewers and junior execution. If a named engineer needs to roll off the engagement (rare), we surface a replacement from the same seniority tier with explicit handoff.
Talk to a React Native lead
Senior React Native engineering, accountable from kickoff.
Bring the workload — we’ll bring a senior engineer plus the practice lead most relevant to the work. 30 minutes, no obligation, no junior reps.