Founding Product Platform Engineer (£120k-£150k + Equity) at OpenHuman in London

Founding Product Platform Engineer (£120k-£150k + Equity) at OpenHuman in London

London Full-Time 120000 - 150000 £ / year (est.) No working from home possible
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At a Glance

  • Tasks: Build a cutting-edge decision platform using Python and React for high-stakes teams.
  • Company: Join OpenHuman, a pre-seed startup backed by top European investors.
  • Benefits: Competitive salary, equity options, and the chance to shape company culture.
  • Other info: Dynamic startup environment with opportunities for personal and professional growth.
  • Why this job: Be a founding engineer with high ownership and direct impact on innovative projects.
  • Qualifications: 5+ years in software development with expertise in Python, React, and data modelling.

The predicted salary is between 120000 - 150000 £ per year.

OpenHuman is a pre‑seed startup backed by tier‑1 European investors building a decision platform that helps high‑stakes teams explore possible outcomes and understand uncertainty.

Join OpenHuman as the first dedicated product engineering hire to build the platform layer for high‑stakes decision‑making. This high‑ownership role involves full‑stack development across Python and React to create durable, trustworthy software.

Why this role is remarkable:

  • Founding‑level scope to build the product platform layer from first principles alongside a pre‑seed team.
  • Backed by tier‑1 European investors, addressing complex engineering challenges in reliability, data workflows, and AI UX.
  • High‑impact role with meaningful founding equity and direct influence on the company’s engineering standards and culture.

What You Will Do:

  • Develop core full‑stack features using Python and React, transforming technical prototypes into scalable, well‑instrumented product surfaces.
  • Architect platform foundations including auth, permissions, and APIs to ensure multi‑tenant workspaces operate safely and reliably.
  • Build internal tooling and customer‑facing interfaces that translate sophisticated AI workflows into clear, navigable, and trustworthy software experiences.

The ideal candidate:

  • Has 5+ years of production software experience with strong proficiency in Python, FastAPI, React, and modern TypeScript.
  • Demonstrates expert SQL and data modeling skills, comfortable navigating data‑heavy environments and modern warehouses like BigQuery or Snowflake.
  • Possesses a strong taste for product engineering and the ability to ship reliable cloud systems, ideally with exposure to LLM‑powered tools.

Founding Product Platform Engineer (£120k-£150k + Equity) at OpenHuman in London employer: Jack & Jill

At Jack & Jill, we pride ourselves on being an exceptional employer that fosters a dynamic and innovative work culture. Our team enjoys a range of benefits including flexible working arrangements, professional development opportunities, and a collaborative environment that encourages creativity and growth. Located in a vibrant area, we offer unique advantages such as access to cutting-edge technology and the chance to work with industry leaders in AI-driven marketing strategies.

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Contact Details:

Jack & Jill Recruitment Team

We think you need these skills to ace Founding Product Platform Engineer (£120k-£150k + Equity) at OpenHuman in London

Full-Stack Development
Python
React
FastAPI
TypeScript
SQL
Data Modelling