Full-Stack / React Native Engineer

Company Description

SHIFT Studios is an e-Commerce growth studio focused on creating world-class online shopping experiences that scale. With over 50 years of combined experience, the team blends strategy, design, technology, and performance to build commercially focused solutions for ambitious brands. As a certified Shopify Premier Partner, SHIFT Studios designs, develops, and optimizes high-performing e-Commerce websites across Shopify and Shopify Plus, from conversion-driven UX to complex back-end integrations.

The in-house team collaborates across the entire ecommerce ecosystem, working with leading platforms in loyalty, reviews, subscriptions, ERPs, and advanced integrations to deliver scalable, stable, and future-ready builds. SHIFT Studios partners with growth-minded founders and teams across fashion, tech, food, luxury, and more, united by a commitment to craft, performance, and measurable results.

Alongside client work, we build and scale our own ventures. The most exciting of these right now is Cubby — an AI-powered household food agent that turns a video of your fridge into a fully managed pantry, expiry alerts, recipes, and a weekly shop, all with one tap to approve. Cubby is at an early, fast-moving stage, and this role will contribute directly to building its product from the ground up alongside our client work.

Role Description

As a Senior Full-Stack / React Native Engineer at SHIFT Studios, you will own the end-to-end technical build of our products — from mobile client through to backend, data, and infrastructure. In this full-time remote role, you will work closely with designers, strategists, and marketers to turn product concepts and customer insights into robust, production-grade experiences that ship fast and stay stable.

Your immediate priority is Cubby . You will lead a ground-up rebuild of the core product in Expo / React Native , replacing an early prototype with a properly architected, tested, and instrumented codebase.

This is a single codebase that serves the validation cohort today and becomes the iOS go-to-market app tomorrow — so you'll make pragmatic, durable decisions rather than throwaway ones. You'll build the core loop end to end: inventory ingestion (receipt photo OCR, e-receipt parsing, kitchen snapshot, manual entry), the expiry engine, inventory-aware recipe generation, and outcome logging — wiring native camera, push notifications, and product analytics so the core loops can be proven with real users.

On the backend , you'll design and own the services and data layer behind Cubby: APIs, the PostgreSQL data model and vector store, integrations with cloud vision/OCR and LLM providers, authentication, and a swappable service layer for third-party tools. You'll stand up CI/CD, error monitoring, and event instrumentation from day one so that both quantitative loop metrics and qualitative cohort feedback flow from a single, trustworthy pipeline.

Alongside venture work, you'll contribute to client delivery — building and integrating high-performing e-Commerce experiences on Shopify and Shopify Plus, including complex back-end and third-party integrations across loyalty, reviews, subscriptions, and ERPs. You will help set engineering standards, review code, mentor other developers, and champion pragmatic, quality-first practices across projects.

Qualifications/Requirements

• Strong full-stack engineering capability, with the ability to own a product end to end — from mobile client to backend, data, and deployment.
• Advanced experience with React Native and Expo , shipping and maintaining production mobile apps (including EAS build/submit, over-the-air updates, and TestFlight/App Store distribution).
• Expert TypeScript across both client and server, with a track record of building typed, tested, maintainable codebases.
• Solid backend experience (Node.js or similar), including REST/GraphQL API design, authentication, and integrating third-party services behind clean abstractions.
• Strong data skills with PostgreSQL and familiarity with vector stores / embeddings for search and matching use cases.
• Hands-on experience integrating AI/LLM APIs and cloud vision/OCR services, including prompt design, confidence scoring, and routing low-confidence results to human confirmation.
• Comfort with native device capabilities — camera capture and push notifications — and the trade-offs between web, PWA, and native delivery.
• Experience standing up CI/CD, error monitoring (e.g. Sentry), and product/event analytics , treating instrumentation as a first-class part of the build.
• Track record of shipping 0→1 products in ambiguous, fast-moving environments, making sensible scope and architecture decisions under time pressure.
• Ability to communicate clearly with technical and non-technical stakeholders, present technical rationale, and collaborate effectively in a remote, cross-functional team.
• Experience with e-Commerce builds, ideally on Shopify or Shopify Plus (including complex back-end and platform integrations), is a strong plus given our client work.
• Experience with mobile, AI, or agentic products is a strong plus given our venture work.