Product Engineer at Seamflow

Company: Jack & Jill
Apply for the Product Engineer at Seamflow
Location: London
Job Description:

Job Title

Product Engineer

Salary

Not Disclosed

Company Description

Seamflow.com is a high-growth London startup that raised a 14× oversubscribed $4.5m seed round from Tier-1 investors including Coinbase, Reddit, Klarna, and Spotify. They are building systems to modernize outdated manual processes in aerospace, healthcare, and energy, already generating 7-figure revenue with an elite team from Google, Amazon, and X.

Job Description

As a Product Engineer at Seamflow.com, you will build end-to-end workflows that solve complex real-world problems in high-stakes industries. You’ll own features from initial UI design to backend logic and AI integration. This role is for someone who thrives in high-ownership environments, shipping production-grade systems to modernize manual physical-world processes at software speed.

Location

London, UK

Why this role is remarkable

  • Work with an elite team of former unicorn founding engineers and talent from X, Google, and Amazon in a high-trust environment.
  • Tackle a massive market opportunity by digitizing critical industries like aerospace and energy, backed by top-tier VCs like Coinbase and Reddit.
  • Experience true ownership by shipping to production on day one and influencing product direction in a fast-paced, 7-figure revenue startup.

What You Will Do

  • Design and build end-to-end user workflows, translating complex real-world processes into intuitive interfaces using React and TypeScript.
  • Implement robust backend services and data models in Python to support complex business logic and AI-powered agents.
  • Integrate LLMs and model-backed APIs directly into production features to automate manual workflows for enterprise customers.

The ideal candidate

  • Has extensive experience with TypeScript, React, and Python, specifically building production-grade systems rather than just simple CRUD applications.
  • Demonstrates strong product judgment and a history of high ownership, ideally with a background as a founder or at an early-stage startup.
  • Possesses a deep interest in AI integration and a proven ability to ship high-quality features where requirements are rapidly evolving.

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Posted: July 24th, 2026