Responsibilities:

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- Own the React Native mobile app—lead development, architecture, deployment (iOS + Android).
- Architect & scale AWS serverless infra: Lambda, DynamoDB, S3, API Gateway, AppSync, SNS/SQS.
- Build robust mobile-first APIs: sub-200 ms response times powering real-time features.
- Ship growth levers: referrals, feature flags, A/B tests, pricing experiments.
- Lead code reviews & set engineering standards that scale.
- Optimize for viral growth: handle spikes from 10 K to 1 M+ concurrent users at launch.

Requirements:

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- 5+ yrs building consumer back-ends at 100 K+ MAU scale, plus proven mobile-app deployment.
- React Native mastery—complex state mgmt, navigation, perf tuning.
- End-to-end mobile deployment: App Store Connect, Google Play, Expo EAS, OTA updates, CI/CD.
- AWS serverless: Lambda,



DynamoDB, S3, API Gateway, AppSync, SNS, CloudWatch, CDK/Terraform.
- Observability chops: OpenTelemetry, Datadog, Honeycomb, etc.
- Track record integrating auth (Clerk/Auth0), payments (Stripe), analytics SDKs.
- Scale-first mindset—design for 10× traffic growth without rewrites.
- Quality champion—strong code reviews, tests, docs.

Bonus Skills:

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- RAG / LLM pipeline experience, vector DBs.
- React Native performance tuning (Hermes, Expo EAS).
- Mobile CI/CD wizardry, automated testing.
- SOC 2 Type II steering.
- Real-time systems (WebSockets, SSE, GraphQL subscriptions).

📌 Senior Full-Stack Engineer (México)
🏢 Nir-yu
📍 México