Senior Site Reliability 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 Site Reliability Engineer, you'll build and scale the critical infrastructure behind every product. In this role, you'll take on complex challenges across global data centers, multiple cloud platforms, and on-premise systems—designing automation-first solutions that elevate performance and eliminate operational friction. You'll be trusted to drive stability at scale, influence architectural decisions, and build tools that empower our teams to move fast and deliver reliably. This is where your impact won't just be felt, it'll be foundational. What you'll do: Design, build, and maintain scalable cloud and on-premises infrastructure using Infrastructure as Code tools such as Terraform, Chef, and Ansible. Build observability into every layer of the platform by developing monitoring, alerting, and logging solutions that support service level objectives and long-term reliability. Develop deployment platforms and internal tooling that enable engineering teams to deliver software efficiently while maintaining governance and operational excellence. Define and standardize infrastructure patterns, deployment strategies, and configuration management practices across a rapidly growing engineering organization. Mentor engineers, share technical expertise, and help establish infrastructure standards that improve consistency, scalability, and engineering excellence. Participate in an on-call rotation, lead incident response efforts, perform root cause analysis, and implement long-term reliability improvements. Partner with Security, Networking, and Engineering teams to strengthen reliability, performance, and resilience across the full technology stack. What you'll bring: At least 3 years of experience designing, building, and operating production infrastructure across cloud and on-premises environments. Expertise with Infrastructure as Code and configuration management tools, including Terraform, Chef, and Ansible. Strong programming skills in Python, Go, Ruby, or a similar language, with experience supporting applications built using object-oriented programming languages. Experience managing distributed systems, containerized workloads, and Kubernetes platforms such as Amazon Elastic Kubernetes Service (EKS) or Rancher. Strong understanding of networking fundamentals and web technologies, including Domain Name System (DNS), Content Delivery Networks (CDNs), load balancing, Virtual Private Clouds (VPCs), hybrid networking, and packet-level troubleshooting. Hands-on experience implementing and supporting API gateways, reverse proxies, and modern infrastructure networking components. A collaborative, action-oriented mindset with a passion for building scalable, reliable platforms and continuously improving engineering practices. #LI-SP1 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.