Senior Product Engineer (£95k – £125k + Equity) at $116M Series B AI-native CRM startup

Company: Jack & Jill
Apply for the Senior Product Engineer (£95k – £125k + Equity) at $116M Series B AI-native CRM startup
Location: London
Job Description:

Job Title

Senior Product Engineer (Backend)

Salary

£95,000 – £125,000 + Equity

Company Description

$116M Series B AI-native CRM backed by GV, Redpoint, and Balderton

Location

London, UK (Remote-friendly)

Job Description

Join a high-growth startup reinventing the CRM for the AI era. As a Senior Product Engineer, you will architect systems processing 250,000+ events per minute using Node.js and TypeScript. Working under a VP of Engineering who led 600+ engineers at Google, you will own features end‑to‑end to serve 5,000+ paying customers.

What You Will Do

  • Lead end‑to‑end projects solving complex customer problems by architecting high‑performance systems on Google Cloud Platform.
  • Design and implement robust REST API contracts for internal and external consumers to support a flexible, data‑rich ecosystem.
  • Re‑architect existing backend systems to meet the scaling demands of a rapidly growing global user base.

The Ideal Candidate

  • Deep expertise in Node.js and TypeScript with a track record of building scalable, data‑intensive cloud‑native applications.
  • Strong product intuition with the ability to collaborate directly with customers and stakeholders across Product and Design.
  • Proactive problem‑solver who thrives in a fast‑paced environment and holds an exceptionally high bar for code quality.

Why this role is remarkable

  • Exceptional engineering leadership under a former Google VP/Snyk SVP, fostering a culture of high craft and minimal process.
  • Massive technical scale involving real‑time data ingestion and AI‑native workflows for over 5,000 ambitious GTM teams.
  • Strong financial backing with $116M raised from top‑tier investors including GV (Google Ventures), Redpoint, and Point Nine.

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Posted: June 13th, 2026