Senior Software Engineer (Backend)

  • Backend, Full Stack
  • Permanent
  • London, UK

About us

We created Peanut with the idea that no one should have to navigate womanhood alone. Especially the hard parts. Our mission is to provide a social network for women to connect across fertility and motherhood. So far, over 1 million women have joined to build friendships, find support, and learn from one another.

Since 2017, we've grown quickly across the US and other countries, and received numerous accolades from Apple, the New York Times, Good Morning America, and the BBC to name a few.

We recently closed our $17M Series A round and are backed by market-leading VCs including EQT Ventures, Index Ventures, Female Founders Fund and Sweet Capital (the brains behind, enabling us to grow our team… now is a great time to join!

Responsibilities and role

This is a full-time position. You'll report to Julien, our CTO, and work within our Engineering team of 14 people. We'll expect you to:

  • design, build, and test robust APIs for our mobile apps (Ruby on Rails 6, PostgreSQL).

  • take part in code reviews (GitHub)

  • ship, monitor, and maintain backend features (Datadog, Sentry, AWS).

  • take the lead on new backend or full-stack features as required.

  • contribute to planning and designing all new features.

  • support our PMs and CMs to diagnose issues.

As well as, depending on your skills and interests:

  • contribute to business intelligence and product analysis (PostgreSQL, AB testing)

  • contribute to internal tooling (React, Bootstrap CSS)

  • contribute to machine learning features (Google AutoML)


As our CTO works remotely, and many of the team do, we are entirely flexible about whether you would like to work remotely (from anywhere in the UK or the rest of the EU), or in central London, at our vibrant Peanut HQ.

We'll simply expect you to join us in person for a few days every months to socialise and plan as a team.