About the role

We’re looking for a Lead Python Engineer to join our Data Team, where you’ll play a pivotal role in shaping the systems and data infrastructure that power our US products.

In this role you’ll balance hands-on engineering with team leadership — owning the technical direction of your squad, mentoring a small team of 1–2 engineers, and still getting deep into the code yourself. You’ll design and build robust data pipelines, APIs and services that drive real decisions across the business, all while keeping quality and scalability at the forefront.

You’ll be a key voice in architectural discussions, helping to define how we build and evolve our data platform as we scale into the US market. No two days look the same here.

We’re building something great, and we’re looking for the right people to grow with us. If that sounds like you, we can’t wait to hear from you.

Our Tech Stack

Our stack is built on Python and FastAPI, deployed via Docker and Kubernetes on AWS, with ArgoCD handling our continuous delivery pipeline.

What we’re looking for

• Interest in leading or mentoring a small team of engineers, with the ability to balance hands-on delivery with team development
• Deep, modern Python expertise; you write clean, idiomatic, well-tested code and hold others to the same standard
• Some experience building and maintaining data pipelines, ETL processes, or data-intensive backend services
• Solid understanding of FastAPI or a comparable modern Python web framework
• Strong automated testing skills across unit, integration, and functional levels
• Experience working with cloud infrastructure, ideally AWS, and comfortable with Docker and Kubernetes
• Ability to drive technical decisions and communicate clearly with both engineers and non-technical stakeholders
• Experience in a cross-functional or data-focused engineering environment is a strong plus
• Familiarity with US financial products or regulated markets is a bonus, but not essential

Interview process

• A quick phone call with one of the team
• A short coding exercise to complete in your own time
• Technical Video Interview for 60 mins – meet the team you’ll work with daily
• Culture interview for 30 mins
• Final Interview

About [Employer hidden — sign up to reveal]

[Employer hidden — sign up to reveal] is on a mission to build the world's best technology to help people get credit and save money.

• Founded in 2014
• Profitable since 2017
• Unicorn in 2021
• £3.5bn valuation in 2022
• Backed by Balderton, Goldman Sachs and Ontario Teachers' Pension Plan
• Loved by customers & employees with top reviews on Glassdoor and Trustpilot

So far, we’ve rebuilt the big three consumer finance products from scratch: loans, credit cards and car finance. We get money into our customers’ hands in minutes instead of days. We’re growing fast, and there’s a lot more to do. We’re going after the two biggest Western markets (UK and US) where trillions are held by big banks with dated systems and painful processes.

Life at [Employer hidden — sign up to reveal]

• The opportunity to scale up one of the world’s most successful fintech companies
• Best-in-class compensation, including equity
• You can work from home every Monday and Friday if you wish - on the other days we all come together IRL to be together, build and exchange ideas
• Our in-house chefs prepare fresh, healthy lunches in the office every Tuesday-Thursday
• We care for our Lendies’ well-being both physically and mentally, so we offer coverage when it comes to private health insurance
• We're an equal opportunity employer and are keen to make [Employer hidden — sign up to reveal] the most inclusive and open workspace in London

Check out our Glassdoor Reviews