Lead Full-Stack Engineer (£130k-£170k + Equity) at innovative music tech platform

Jack & Jill/External ATS; Greater London; On-site; GBP 130,000 - 170,000; Full time

Job summary

An innovative music tech platform in London is seeking a Lead Full-Stack Engineer to lead the design of a collaborative music creation platform. This role involves building core multiplayer features, designing robust sync models, and working with a small, fast-paced team. A successful candidate will have over 7 years of experience in real-time systems and deep expertise in TypeScript, React, and Node.js. Competitive salary of £130k-£170k plus equity is offered.

Qualifications

• 7+ years building complex, user-facing systems, including real-time/multi-user features.
• Deep expertise in TypeScript, React, Node, with expert state architecture (Zustand) and optimistic UI.
• Strong understanding of real-time transports (WebSockets, WebRTC) and consistency/conflict resolution (CRDT/OT).

Responsibilities

• Implement core multiplayer primitives like presence, selection, and edit/playback states.
• Write crisp React + TypeScript with Zustand, setting high bars for performance and feel.
• Design robust sync and conflict models for a real-time collaborative environment.

Skills

TypeScript

React

Node.js

WebSockets

WebRTC

CRDT/OT

Zustand

Job description

Lead Full-Stack Engineer

Job Title: Lead Full-Stack Engineer

Salary: £130k-£170k + Equity

Company Description: Innovative music tech platform

Location: London, UK

Job Description: Lead the architectural design and implementation of a real-time, collaborative music creation platform. You'll build core multiplayer primitives, define sync and conflict models, and scale the backend from hundreds of thousands to millions of users. This role offers the chance to shape the future of music interaction, delivering a stable and delightful experience at massive scale.

Why this role is remarkable:

• Own the architecture for real-time, collaborative music creation at massive scale
• Join a small, world-class team that ships fast and experiments boldly
• Contribute to redefining music creation, making it universal and engaging for billions

What you will do:

• Implement core multiplayer primitives like presence, selection, and edit/playback states
• Write crisp React + TypeScript with Zustand, setting high bars for performance and feel
• Design robust sync and conflict models for a real-time collaborative environment

The ideal candidate:

• 7+ years building complex, user-facing systems, including real-time/multi-user features
• Deep expertise in TypeScript, React, Node, with expert state architecture (Zustand) and optimistic UI
• Strong understanding of real-time transports (WebSockets, WebRTC) and consistency/conflict resolution (CRDT/OT)

How to Apply:

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