Mid/Senior Product Engineer (£90,000-£130,000 + Equity) at Versey

Mid/Senior Product Engineer (£90,000-£130,000 + Equity) at Versey

Full-Time 90000 - 130000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Engineer a cutting-edge writing interface and collaborate on innovative AI features.
  • Company: Join Versey, a dynamic AI startup backed by top-tier investors.
  • Benefits: Competitive salary, equity options, and a high-ownership work environment.
  • Other info: Work in a top 1% European startup with excellent career growth opportunities.
  • Why this job: Be part of a team creating tools that empower writers and redefine productivity.
  • Qualifications: Experience with React/Next.js and a passion for high-quality software craftsmanship.

The predicted salary is between 90000 - 130000 £ per year.

Join a high-craft team building the "Cursor for writing." You will develop a local-first, minimalist editor that serves as a thinking partner for serious writers. Using Next.js and LangGraph, you'll solve complex challenges in real-time AI collaboration, agent orchestration, and seamless syncing to empower journalists and researchers worldwide.

Location: London, UK

Why this role is remarkable:

  • Build a category-defining tool designed with 50+ professional writers and journalists to augment, not replace, human thought.
  • Join an elite team recognized in Focal's 2024 top 1% of European startups, backed by Tier-1 investors like 8VC and Venrex.
  • Work in a high-ownership environment with a founder who has two prior successful exits and a passion for high-craft engineering.

What you will do:

  • Engineer a high-performance, local-first writing interface using TypeScript, Tailwind v4, and ProseMirror for an elite user experience.
  • Architect sophisticated agentic workflows using LangGraph and modern reasoning models to create an integrated, context-aware AI writing partner.
  • Collaborate directly with customers to define and ship end-to-end features, from inline AI suggestions to complex version tracking systems.

The ideal candidate:

  • Professional experience building complex frontend applications with React/Next.js and a deep obsession with interaction quality and craft.
  • Strong interest or experience in local-first architecture and integrating LLMs/agentic systems into production-ready software products.
  • A generalist mindset with excellent product instincts who appreciates high-quality tools like Linear, Superhuman, or Notion.

Mid/Senior Product Engineer (£90,000-£130,000 + Equity) at Versey employer: Jack and Jill AI

Join a fast-growing AI startup that is redefining the landscape of heavy industries with cutting-edge technology. Located in vibrant Austin, USA or London, UK, this company offers a dynamic work culture that fosters innovation and collaboration, alongside significant opportunities for personal and professional growth. As a key player in shaping the talent strategy, you will have the chance to influence the hiring process and contribute to a mission-driven environment that values high performance and trust.

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Contact Details:

Jack and Jill AI Recruitment Team

We think you need these skills to ace Mid/Senior Product Engineer (£90,000-£130,000 + Equity) at Versey

TypeScript
Next.js
React
Tailwind v4
ProseMirror
LangGraph
AI Collaboration