WHAT WE LOOK FOR

• Prior exposure to our stack (JavaScript/TypeScript, React, Node & AWS) is a plus. However, we know the best engineers can pick up new tools quickly and a growth mindset coupled with strong fundamentals is more important than knowledge of specific frameworks or languages.
• You enjoy building products in cross-discipline teams using an iterative approach, driven by user feedback and data insight, and care deeply about providing a great user experience to customers.
• You’re not afraid of ambiguity and thrive when helping set the direction of the team.
• You understand the importance of prioritisation in your work to ensure a good balance between business impact and code quality.
• You have interests that span the full stack – from building performant web experiences to debugging traffic latency in our AWS stack.
• You have experience with financial systems, payments, or transactional workflows and understand the importance of financial correctness and compliance in software development. Experience with Stripe is a plus.

WHO WE ARE

Let’s Do This is the online company getting people offline.
We exist to inspire people across the world to come together and experience moments that make them feel alive. We’re currently going after mass participation sports events (Marathons, Triathlons, 10Ks, 5Ks, swim races), where we’re proud to be the global leader.
We’re at a super exciting and rapid stage of our development. We now take over 1.5 million bookings every year, driving growth for our industry from large-scale races like the UK’s London Marathon Events and the Great North Run to hero races like the Hackney Half, Peachtree Road Race, the London Triathlon, or grassroots races like those from RunThrough.
We’ve grown exponentially in the UK since our launch in 2017 and are now in the process of expanding within the US market with the same energy our brand represents. We’ve raised $90M to date and were the fastest growing company on YCombinator, and our investors also include Tier 1 VCs NFX, EQT, and legendary individuals Serena Williams and Usain Bolt.

THE ROLE

At Let’s Do This, our Software Engineers are an integral part of our product development process.
We are not a company that believes engineers should be hidden away from decisions, churning out code for features decided from upon high. Instead, our Engineers form strong bonds with cross-functional peers in Product Management, Data Science, Product Design and others to become experts working full stack across vertical slices of the product rather than horizontally along technology lines.
As a Lead Software Engineer, you’ll get to work with a range of new and emerging technology and tools but also help to evolve what we use in the future. We value engineering knowledge over specific coding languages, thus consider people from many backgrounds, but we are mainly TypeScript focused.
This role is particularly suited for an engineer with strong financial expertise. You will be joining our financial team, which is responsible for ensuring financial correctness and timely payments to our partners. A solid understanding of financial systems, transactions, and best practices in handling money-related workflows is essential. Experience with Stripe is a plus.
Our current tech stack includes:
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Node, AWS Lambda and Typescript to write our backend (micro)services

• React and Apollo to create engaging user interfaces
• MongoDB for most persistent data storage & Amazon EventBridge for our async event bus
• Docker and Amazon ECS to schedule and run our services
• Stripe for payment processing and financial transactions.

WHAT YOU’LL DO

• Every day you’ll be working closely with peers in the wider product org to define the future of the product.
• Engaging with designers to build and improve the UX of our core products.
• Working with our data scientists to design, run and verify your work using state-of-the-art experimentation and feature flagging frameworks.
• Actively contributing to every stage in the product development lifecycle and owning the development of new features from conception to completion.
• Shaping the future of our tech platform across the full stack.
• Ensuring financial correctness in the systems you build and maintaining robust payment workflows.
• Working in a small, tight-knit team with a rapid iteration cycle – typically a week.