Senior Software Engineer (London)

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Join to apply for the Senior Software Engineer role at DraftKings Inc.

Were defining what it means to build and deliver the most extraordinary sports and entertainment experiences. Our global team is trailblazing new markets, developing cutting-edge products, and shaping the future of responsible gaming.

Here, impossible isnt part of our vocabulary. Youll face some of the toughest but most rewarding challenges of your career. Theyre worth it. Channeling your inner grit will accelerate your growth, help us win as a team, and create unforgettable moments for our customers.

The Crown Is Yours

As a Senior Software Engineer, youll be part of one of our multidisciplinary teams where youll work closely with designers, product managers, and data analysts. Youll be a creative contributor to our processes and decision-making so that when we build new features, we can ensure the scalability and availability of the entire platform.

What youll do as a Senior Software Engineer

• Build and maintain high-performance, real-time trading tools that empower DraftKings traders to visualize, price, and manage live markets and games.
• Design dynamic web-based widgets and dashboards for overriding or supplementing automated systems, detecting pricing anomalies, and responding rapidly to unexpected events.
• Collaborate across teamsproduct, design, and tradingto improve platform reliability,
• developer experience, and intuitive UX for handling peak volumes with confidence.
• Enforce code quality and maintainability by writing clean, testable code, conducting rigorous code reviews, and refining deployment workflows.
• Balance agility with long-term growth by iterating quickly on features while architecting for resilience, performance, and future scalability.

What youll bring

• Ideally, you have 4+ years of development experience in object-oriented programming using languages such as C#.
• Strong knowledge of OOP, design patterns, and REST design principles.
• At least 2 years of experience developing modern web applications using React.
• Experience with distributed systems in a Cloud Computing environment.
• Experience with web communication protocols.
• Ability to grow other engineers through code reviews, design reviews, and over-the-shoulder debugging.
• Experience writing and maintaining a comprehensive suite of unit and integration tests.
• Proficiency in integrating AI-powered tools (e.g. Copilot, Cursor, Claude) into development pipelines to accelerate coding, enhance code quality, and increase developer efficiency.
• Proficiency with AI-assisted testing, code reviews, and documentation generation.
• Proven ability in leveraging AI tools in daily engineering workflows e.g. including pair programming with AI, auto-generating test cases, or accelerating bug triage and resolution.

Join Our Team

Were 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. Dont worry, well guide you through the process if this is relevant to your role.

• Seniority level
  Mid-Senior level

• Employment type
  Full-time

• Industries
  Software Development and Spectator Sports

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