Founding Backend Engineer \| PostgreSQL, GCP \& Distributed Systems \| AI Music Creation Platform
Salary: £60,000-£100,000
Location: Victoria, London
The Role
You’ll join a small founding team building a browser-based platform designed to make creating music as universal as listening.
The product already has 100,000+ users and over 1M songs created. As the Founding Backend Engineer, you’ll own the backend systems powering payments, collaboration, and media infrastructure as the platform scales to millions of users.
What They’re Looking For (Non-Negotiables)
You’re a backend engineer who enjoys designing systems properly and taking ownership of production infrastructure.
You will likely bring experience with:
PostgreSQL / SQL database design, schema architecture, indexing, migrations
NoSQL databases such as Firestore
Database migrations from NoSQL to relational systems
REST API design for high concurrency
Stripe payments and subscription systems (RevenueCat beneficial)
Docker containerisation and CI/CD pipelines
Cloud infrastructure such as GCP or AWS
Media pipelines, CDN delivery, and large file uploads
Monitoring, logging, and production reliability
Nice to Haves
ElasticSearch or search databases
Vector databases or semantic search systems
WebSockets or real-time collaboration systems
Next.js server-side rendering exposure
Analytics tooling such as PostHog or Axiom
Music production experience using DAWs such as Ableton or Logic
Why Join / Projects
You’ll help build the core infrastructure behind a product aiming to redefine how music is created online.
You will:
Lead the migration from Firestore to PostgreSQL
Build the payments backbone powering subscriptions
Design scalable media upload and streaming systems
Build backend systems for real-time music collaboration
Improve reliability, observability, and deployment pipelines
The team works from a central London office near Victoria Station and prioritises in-person collaboration.
Employee Benefits
Founding equity
Visa sponsorship available
Private medical and health insurance
Gym membership
Pension contribution
Frive meal prep
MacBook of your choice
Founding Backend Engineer \| PostgreSQL, GCP \& Distributed Systems \| AI Music Creation Platform