AI Product Engineer (Web + iOS + Android | Voice + LLM Integration)

UpworkUSNot specifiedintermediateScore: 62
Node.jsReact NativePythonNext.jsiOSAndroid
I am building an AI-driven product that will launch across: • Web • iOS • Android I will be actively building parts of the system myself and need a strong technical product engineer to collaborate on architecture, implementation, and infrastructure. This is not a handoff project to an agency. This is a collaborative build with a focus on clean foundations and long-term scalability. Details will be shared under NDA. MVP Scope Phase 1 includes: • Cross-platform application (Web + iOS + Android) • Real-time voice interaction • LLM integration (OpenAI or equivalent) • Authentication + user accounts • Database architecture • API layer • Deployment pipeline • Analytics / event tracking Future phases may include: • Invite tracking systems • Gating mechanics • Structured outputs • Growth architecture • Performance scaling Your Role You will: • Architect backend systems • Recommend appropriate cross-platform framework • Implement LLM integrations • Structure authentication and database • Implement voice pipeline (STT → LLM → TTS) • Build clean APIs • Assist with deployment (App Store + Play Store + Web) • Help make technical decisions that avoid rebuilds later This is primarily an architecture + implementation role. Required Experience You should be comfortable with: Cross-Platform: • React Native (preferred) or similar • Web support (Next.js or equivalent) Backend: • Node.js or Python • Postgres (Supabase preferred) • Auth systems (JWT / OAuth) AI: • OpenAI or similar APIs • Structured outputs • Prompt collaboration Voice: • Real-time speech-to-text + text-to-speech Infrastructure: • Vercel / AWS / GCP • CI/CD • App Store & Play Store deployment Who This Is For • Independent senior engineers • Builders who understand product architecture • Engineers comfortable collaborating live • People who prefer clean systems over bloated ones Who This Is NOT For ❌ Agencies ❌ Teams outsourcing work ❌ Junior developers ❌ Pure designers ❌ People who require fully written specs Commitment Part-time initially (10–20 hrs/week). Potential long-term collaboration. To Apply Please answer: What cross-platform stack would you recommend and why? How would you architect voice → LLM → voice across mobile and web? Have you deployed apps to both App Store and Play Store? Are you comfortable collaborating in real-time while building? Include the word “Architect” at the top of your response.
View Original Listing
Unlock AI Intelligence, score breakdowns, and real-time alerts
Upgrade to Pro — $29.99/mo

Client

Spent: $54,488.25Rating: 4.5Verified