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Senior Mobile Engineer

Allup

Allup

Software Engineering
Los Angeles, CA, USA
USD 80k-160k / year + Equity
Posted on Sep 12, 2025

Culver City, CA | Remote | Full time

About our client

Purpose is creating the world’s first AI-powered personal-growth coach—helping people go from “I’m doing fine” to “I know who I am, what I care about, and how to live with clarity.”

  • Co-founded by Mark Manson (20 M+ readers, The Subtle Art of Not Giving a F***) and Raj Singh (100M+ users on last AI product, acquired by Revinate).
  • Launching in a few months to Mark’s massive audience.
  • Blends personalized AI coaching, habit-building, and assessments—feels like a meaningful conversation, not an app.

🌟 WHY YOU'LL LOVE THIS ROLE

  • Shape the experience: own data flows, real-time APIs, and UI that make each coaching session feel like magic.
  • Iterate at speed: weekly feature drops, rapid experiments, instant user feedback.
  • Level-up daily: work shoulder-to-shoulder with founders who’ve shipped to hundreds of millions.

🛠️ WHAT YOU'LL DO

  • 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.

YOU'LL BRING

  • 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 POINTS

  • 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).

💎 PERKS

  • Unlimited PTO
  • Founder-led growth coaching
  • Best-on-planet tools
  • High-trust, high-velocity team

Salary: $80k – $160k • 0.0% – 0.25%