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Head of Engineering at Cleo AI
London, GB


Cleo is an AI assistant that helps over 900,000 people in the UK, US and Canada feel great about their money. We are a fast-growing start-up, backed by the founders of Skype, Transferwise and Zoopla. 

We're looking for a truly exceptional technical leader to drive Cleo to the next stage of its development. You should be an outlier in building, running, and getting the most out of world-class engineering teams. You should either have done it before (scaled a rapidly growing tech startup) or are ready to take on that challenge as the next step in your career.

This is a hands-on, high-profile role that will be pivotal in the company's future success. You'll get to lead a world class team and work on a product used religiously by hundreds of thousands of customers every week.

What you’ll be doing:

You'll lead 2-week long sprints with goals aligned to overall quarterly targets; manage and coach technical leads across backend, frontend and data science; and write exemplarily code and define our future architecture.

Some of our core product objectives are:

  • Natural Language Processing: making Cleo indistinguishable from a human financial assistant.
  • Transaction Enrichment: understanding and perfectly categorising all banking data Cleo receives.
  • Investments: building the future of automated once click investments with Cleo.
  • Trading: free stocks and share trading at the tap of a button.
  • Overdraft protection: one of the most insidious financial products - we're working on a way to stop users being ripped off by egregious charges.
  • Rewards: shop at your favourite merchants to get instant cashback.
  • Insights: learn about your spending in real time to help you achieve your financial goals.
  • Savings: From automated savings to goals to budgeting, Cleo makes it easy to save more money.
  • Core Platform: Scaling to millions of active users. We need great engineers constantly improving our infrastructure and peering round the corner.

Our Stack:

  • Ruby on Rails
  • Minitest
  • Sidekiq
  • React
  • Postgres
  • Redis
  • Heroku
  • Github
  • CircleCI
  • Python (ML)
  • Amazon Sagemaker


About you:


  • are a Ruby developer with at least 6 years’ experience in a backend role.
  • can reduce complex problems to simple solutions consistently.
  • enjoy making those around you better engineers.
  • are excited by what we're building at Cleo; you are product-focused and care about making our users’ lives better.

Advantageous, but not essential;

  • Experience with React
  • Experience scaling platforms growing at pace (Postgres / Rails)

Our process:

  1. Quick phone call with a member of our engineering team to find out more about your experience and why you want to work at Cleo.
  2. Short take-home test.
  3. Onsite interview:
    1. Technical discussion with a senior engineer
    2. Pairing on an interesting problem
    3. Meet the CEO/COO


  • An above market compensation package (Base + Equity). We're prepared to pay for the very best.
  • The chance to work and lead one of the fastest growing tech startups anywhere in the world. We recently closed a competitive Series A with Balderton who join a formidable investor base including the founders of Skype, Transferwise, Zoopla, Lovefilm, Climate corporation, SongKick and others.
  • The team is exceptional. You'll get to lead brilliantly bright and dedicated individuals every day.
  • Our mission is unique. We want to radically improve everyone’s relationship with money. We're not maximising the time consumers spend in a feed, getting fast food delivered, or building an incrementally better bank. We're changing an industry in a visceral way, which you get to see every day from our customers’ feedback.

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