Senior Software Engineer, Backend

As a Senior Software Engineer, you'll join one of the most innovative technology teams, where you'll engineer high-performance systems that scale to support millions of transactions each week. In this role, you'll work closely with engineers, product managers, and architects to build scalable and reliable software that directly impacts our customers. You'll take full ownership of key services, contribute to architectural decisions, and see your code quickly deployed to production. This is a unique opportunity to sharpen your skills in a fast-paced environment where technical excellence and impact go hand in hand.

Design and build systems and APIs that power experiences for millions of users across our platforms.

Develop scalable, high-performance services and applications in a cloud-native environment.

Partner cross-functionally with Product and Architecture teams to bring new ideas to life.

Ensure code quality with comprehensive test coverage including unit, integration, and performance tests.

Respond to production incidents and contribute to root cause analysis and continuous improvement efforts.

Own the health and performance of the services you build, with a strong focus on scalability and reliability.

Participate in code and design reviews, elevating engineering excellence across the team.

Stay adaptable in a fast-paced environment that values flexibility, iteration, and continuous learning.

Bachelor's degree in Computer Science or any relevant combination of education, experience, and training

At least 3 years of software development experience using object-oriented languages like Java or C#.

A strong grasp of object-oriented programming, design patterns, and scalable software architecture.

At least 1 year of experience working with relational databases.

Proven experience developing in cloud environments like AWS, including microservices and containerization such as Docker and Kubernetes.

A track record of writing and maintaining automated test suites across multiple levels.

Experience tuning performance in large-scale distributed systems.

The ability to mentor others and influence technical decision-making.

A collaborative, solutions-driven mindset and the ability to work both independently and in team settings.

We’re a publicly traded (NASDAQ: DKNG) technology company headquartered in Boston. As a regulated gaming company, you may be required to obtain a gaming license issued by the appropriate state agency as a condition of employment. Don’t worry, we’ll guide you through the process if this is relevant to your role.