Backend Engineer, United Kingdom

The fastest-growing sports gaming company, ever. We’re here to make sports more fun. We pair intuitive user experiences with innovative game designs to build the best experience for sports fans in America.

Since 2020, we’ve launched four of today’s most widely played fantasy games, and built the Underdog Sportsbook entirely in-house with our own tech. We move fast, act with urgency, and create experiences you won’t find anywhere else.

With a $1.2 billion valuation and backing from investors like BlackRock, Spark Capital, SV Angel, Mark Cuban, Kevin Durant, Adam Schefter, and more, we’re just getting started.

At Underdog, we play and win as a team. We take chances and are unafraid to attack hard problems. We face challenges with ambition and optimism. We play for the love of the game.

We’re Underdog. And winning as an Underdog is just more fun.

Join us.

About the role and why it’s unique:


Build the backbone of Underdog’s data ecosystem—design and deploy internal APIs and workflows that power seamless communication across our services.
Create robust, scalable microservices to serve real-time, high-volume data needs for our internal teams, enabling faster decision-making and better fan experiences.
Own greenfield projects that shape the future of our business—architecting backend systems built for scale, resilience, and speed.
Partner cross-functionally with engineers, product owners, and data scientists to turn complex challenges into elegant, scalable solutions.
Safeguard system reliability by building smart monitoring, alerting, and logging tools that keep our infrastructure healthy and performant.
Drive impactful technical initiatives from start to finish in a fast-moving, high-stakes environment where your leadership makes a real difference.
Champion engineering excellence by leading code reviews, sharing best practices, and helping level up the team through mentorship and feedback.


Who you are:


A Backend Engineer with at least 3 years of experience building microservices heavy backend systems and APIs for internal applications on a cloud environment (e.g. AWS, GCP, Azure)
Advanced proficiency with Go
Experience building and scaling backend systems and designing enterprise scale APIs for external and internal applications
Highly focused on delivering results for internal and external stakeholders in a fast-paced, entrepreneurial environment
Excellent communication skills with ability to influence and collaborate with stakeholders
Familiarity with containerization and orchestration technologies such as Docker, Kubernetes, or ECS
Experience with DevOps practices such as CI/CD pipelines, and infrastructure-as-code tools (e.g. Terraform, CDK)


Even better if you have:


Strong interest in sports
Prior experience in the sports betting industry