Product Engineer

Product Engineer (React / Node.js / AI)

100,000120,000 + Equity | Hybrid 3 days/week in London

Our client is redefining how software is created in the AI era not by generating snippets of code, but by reimagining the entire process of how software is designed, built, and evolved.

Founded by a proven tech leader (the founder of one of Europes best-known DevTools companies) and backed by Index, Accel, GV, and Boldstart , this London-based Series A startup is pioneering what they call AI Native development where AI isnt a helper, its a core collaborator in building software.

Theyre now looking for a Product Engineer to join the User Journeys team someone who thrives at the intersection of engineering, design, and developer experience. Youll help build the tools, workflows, and interfaces that will define how developers create in the future.

The Opportunity:

Youll work across the stack to craft real-time, intuitive developer experiences from fine-tuning collaborative UI interactions to designing new CLI tools and IDE extensions.

This isnt a just code whats specced role its a chance to experiment, make architectural calls, and influence how millions of engineers might one day build software.

What Youll Be Doing:

• Build AI-driven workflows, interfaces, and tools that transform how developers code.
• Pair with designers to refine the user experience in the Tiptap-based editor.
• Develop CLI tools and IDE extensions that connect developers seamlessly with the platform.
• Architect real-time systems for streaming and collaboration across the platform.
• Write clear, opinionated technical docs and decision records that shape product direction.
• Help define and implement end-to-end testing and deployment strategies.

Tech Stack:

• Frontend: React (Remix, SSR, and modern frameworks)
• Backend: Node.js, REST APIs, JSON:API standards
• Realtime: WebSockets, CRDTs (Yjs)
• Tooling: Tiptap, ProseMirror, CLI, IDE extensions
• Infra: CI/CD pipelines, Kubernetes, AWS

What You Bring:

• ~6+ years building complex products in collaborative, cross-functional teams.
• Experience working with TypeScript and strong intuition for developer experience.
• Proven ability to design, scale, and maintain production APIs.
• Comfort in high-autonomy, fast-moving environments ideally early-stage startups.
• Curiosity for AI and its potential to transform how software is built.

Bonus Points:

• Experience building AI products or developer tools.
• Familiarity with CRDTs, Tiptap/ProseMirror, or real-time collaboration.
• Strong design sensibility you care how things feel , not just how they work.
• Infrastructure experience (CI/CD, Kubernetes, IaC).

Why Join?

• Impact: Shape how the next generation of developers build software.
• Influence: Work directly with founding engineers and leadership from Snyk.
• Ownership: High autonomy, low bureaucracy, huge creative scope.
• Rewards: 100120k + meaningful equity, private health insurance (including dependents), team off-sites, and socials.
• Hybrid setup: 3 days/week in London HQ.

Interview Process:

1 Intro call with the Hiring Manager

2 Take-home challenge (real-world, not abstract)

3 On-site pairing session with founding engineers

4 Culture & values chat

5 Final conversation with leadership

This is your chance to join a category-defining AI startup thats changing how software is made, forever. If youre excited by high autonomy, cutting-edge tech, and massive creative potential

Apply today or reach out to Sam Barcia for a confidential chat.