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.
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London, UK£90K–£130K + Equity
Featured roleLondon, UK£90K–£130K + Equity
Mid/Senior Product Engineer at Versey — VC-backed AI writing platform
Versey is building the 'Cursor for writing,' a high-craft, local-first editor that acts as a thinking partner for serious writers rather than just generating text. Backed by $3m from top-tier investors like 8VC and scouts from Sequoia and a16z, this London-based team is looking for a Product Engineer to shape the future of human-AI collaboration. If you care deeply about interaction design, work with Next.js and LangGraph, and want to build a tool that journalists and researchers actually love, this is your chance to join a 1% European startup at the ground floor.
Overview
Why this role stands out
Company
Software
Versey - $3m pre-seed AI startup backed by 8VC and Sequoia scouts
Responsibilities
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.
Candidate profile
Who this is a fit for
- 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.
What makes it remarkable
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.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
About Jack & Jill
Meet Jack
Jack gets to know what you are great at, what you want next, and makes sure Jill considers you for the right opportunities.
How does this work?
Jack's an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack's network.
If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
Jack