Senior Backend Engineer

At DraftKings, AI is becoming an integral part of both our present and future, powering how work gets done today, guiding smarter decisions, and sparking bold ideas. It's transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. We're not waiting for the future to arrive. We're shaping it, one bold step at a time. To those who see AI as a driver of progress, come build the future together.
The Crown Is Yours
As a Senior Backend Engineer, you'll build and evolve high-scale backend systems that power internal platforms. From day one, you'll ship production-ready code, deliver features with speed and consistency, and own services end to end in a fast-moving, always-on environment. You'll work alongside engineers, architects, and product leaders to build reliable systems with real business impact. Your ideas will shape what comes next and your growth won't slow down.
What You'll Do

• Design, build, and maintain backend services and APIs supporting internal platforms and workflows.
• Own complex work from design through implementation, deployment, and long-term support.
• Develop and evolve microservices and event-driven systems with a focus on reliability and scalability.
• Collaborate with frontend engineers on full-stack features, contributing backend expertise.
• Participate in technical planning and design, helping scope work and manage tradeoffs.
• Investigate and resolve production issues, using logs, metrics, dashboards, and alerts.
• Review code and provide backend-focused feedback to raise quality and consistency.
• Mentor engineers through pairing, reviews, and day-to-day technical guidance.
• Contribute to operational documentation, dashboards, and playbooks.

What You'll Bring

• At least 3 years of experience owning backend systems in production, with hands-on development in C# and .NET or similar technologies.
• Proficiency in building and scaling backend services and APIs within distributed systems.
• Deep understanding of system design principles, performance tuning, and architectural tradeoffs.
• Experience with asynchronous and event-driven architectures, and resolving production issues in real time.
• Familiarity with microservices, APIs, cloud platforms like AWS, and observability tools.
• Working knowledge of React and TypeScript to effectively partner with frontend teams.
• A collaborative mindset with a strong sense of ownership, and experience mentoring peers across cross-functional initiatives.
• Fluency in English.

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Join Our Team
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.