Job Specifications
Title: Full-Stack + Mobile Engineer (AI Consumer Apps)
Location: London
Full-time
Company
Magic Group, founded by Julius Dein, is an entrepreneurial team that moves fast. Julius has built one of the biggest online followings in the world, 72M+ followers and billions of views across platforms. This year we launched multiple new channels that together drove hundreds of millions of views, proving we know how to capture attention at scale.
Now we're turning that reach into product distribution. We are looking to build the next set of viral digital apps - that's why we're hiring you! You'll be the person who turns ideas into live products, not just maintain existing ones.
You'll work alongside a team with deep experience in product development, growth, and storytelling, giving you the distribution most indie builders dream of.
Why this role
This is a builder's seat at the table. You'll own core builds end-to-end, decide what ships, and shape the tech culture from day one. Small, senior, high-trust team.
What You Do
Build web and mobile features from prototype to production
Ship to App Store and Google Play, run release trains
Set up analytics, crash reporting, push, and IAP
Design and ship APIs, REST or GraphQL
Handle auth, webhooks, pagination, rate limits, versioning, monitoring
Use LLMs in production: OpenAI SDKs, LangChain or similar
Implement embeddings, vector search, simple RAG, prompt evals
Work with growth and creative to run fast tests, ship weekly
Keep code simple, readable, and tested where it matters
What makes you a fit?
You've shipped production mobile apps (share store links)
You've designed or extended APIs, not only called SDKs
You've built with LLMs and can show your eval approach
You move fast with care and have strong product taste
You love building, think like an owner, and handle ambiguity
Toolkit you likely use
Frontend: React, Next.js, Tailwind
Mobile: React Native or Flutter, or native iOS/Android
Backend: Node.js, TypeScript, Firebase/Supabase/Postgres
AI: OpenAI SDKs, LangChain (or similar), Pinecone/Weaviate
DevOps: Vercel/Cloud, CI/CD, Sentry/Crashlytics, Mixpanel/GA
Nice to have
Edge functions, WebSockets, payments/IAP, media processing, growth experiments at scale
How We Hire
20-min screen
Portfolio deep dive
Practical build test - a short, real-world feature or API build
Team chat
Apply with
GitHub or portfolio, two app store links, an API sample or docs.
What's in it for you?
For the right person, this is more than a job - it's a chance to be a founding builder. If you help us win, you share in the upside.
Contact Caroline Biggs Head of People - Operations
About the Company
We're the team behind Julius Dein. With over 60 million followers across social media, achieving 40 billion + views since the start of the journey. We focus on the JD brand, and viral content production.
Key stats:
- Most viewed FB page globally of 2021 ( 45 BILLION + views)
- 5 BILLION + Youtube views in 2021
- Most followed magician to ever have existed.
- 30 + content team specialising in viral social content.
- 10/10 banter
This company is unlike no other- we are born of the internet age, run by gen-z and pro...
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