Are you a Senior Ruby on Rails Developer, keen to develop your Machine Learning exposure? Would you like to join a progressive, recently $20m dollar funded start-up with full remote working and solving extreme data through-put engineering problems? Would you like to work for a true, pragmatic Ruby-on-Rails evangelist CTO with high standards and good mentorship? Ruby on Rails Developer team inter-twined with the Data Science team?

UK Salary: £70k – £95k, share options, govt pension (if UK based)

EU Contract-based rate: €90k – €120k

Location – London base but fully remote – well-managed remote working from anywhere in UK / EU

As their Senior Ruby on Rails Developer in a team of 6, you will be building out their full stack with a great team hand-picked from high-scaled, heavy data oriented brands in London. All this from your own home anywhere in UK/EU (every 2 months they organise a trip to the office, fully expensed, post-lockdown, for a few days).

As Senior Ruby on Rails Developer, you’ll be given high-level requirements discussed with your current squad, you’re responsible for modelling & implementation, through to testing, delivery and maintenance of individual features. You’ll continuously improve code and operations in the team, whilst supporting others in doing the same.

We’re looking for a smart problem-solving Senior Ruby on Rails Developer who wants to build an exciting, globally scalable product. Something that offers support to parents whilst having a family; empowering women, enhancing work-life balance and is backed by high-profile investors and a top-tier CEO in the domain. You’ll be building on the latest versions of Ruby (2.7.0) and Rails (6) with a straightforward stack of Postgre at the back-end and native apps (Swift/Kotlin) on the top. As you build out, you’ll gain a strong affinity with their data science practice, using NLP and Neural Networks for their Data analysis and insight of community groupings.

You’ll love these guys because:

They’re led by a top CTO from the Ruby-on-Rails Community of 12 years, with 3 high-profile brands with Ruby-on-Rails standards of excellence.

He knows how to make dispersed and remote-working work for both of you, and has advocated it for years.

They’re keen to skill-up smart RoR developers up with Machine Learning tools at production level

You’ll contribute and learn with well-drilled, high standards Ruby-on-Rails Developer colleagues from some major brands.

They have progressive values, are family oriented and support women’s causes


Senior Full Stack Ruby on Rails Developer – focus is more back-end.

Built a strong understanding of relational databases, PostgreSQL or MySQL.

Built features that scale to 1k+ concurrent users, with large datasets (100s of tables, 100k+ users, 10s of millions of rows), and faced performance constraints.

Pair-programming friendly and good experience of scaled, quality development practices


Strong Machine Learning in addition to being a season Ruby-on-Rails Developer.

Social Media Gamification, NLP, Neural Network,

This Senior Ruby on Rails Developer role has great opportunity to learn from and contribute to smart peers in what is already a success story.  Exceptional funding and with current times requiring that much more support for its users.

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