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Senior Site Reliability Engineer

    • Sofia, BG
  • Engineering
  • Full time
a group of people sitting at tables in a room with orange walls

About DraftKings

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 as a Senior Site Relaiability Engineer

  • Drive stability and scalability across our global compute platform spanning numerous data centers, multiple public clouds, and on-premise environments, serving as the foundation for all our products.

  • Implement automation for self-healing, fault-tolerant infrastructure using declarative configurations and event-driven workflows, and develop internal tools to eliminate repetitive tasks.

  • Establish critical performance and reliability metrics for infrastructure platform components.

  • Ensure the highest level of uptime and Quality of Service (QoS) for internal customers through operational excellence.

  • Support technical growth by sharing knowledge, participating in design discussions, and contributing to a collaborative team culture.

  • Participate in an on-call rotation, incident reviews, root cause identification, and Root Cause Analysis (RCA) reporting.

What You'll Bring

  • Bachelor's degree in Computer Science or relevant education, experience, and training.

  • At least 3 years of experience managing distributed cloud environments such as GCP, AWS, vSphere, and Nutanix, along with platform automation at scale.

  • Deep expertise in container orchestration with Kubernetes with the ability to design, scale, and troubleshoot complex workloads.

  • Strong experience developing software for automation and infrastructure tooling such as Go and Python, Terraform and Ansible.

  • Kubernetes administration experience, including installation, configuration, and troubleshooting.

  • Working knowledge of networking and Linux-based systems, including container runtimes such as Docker and containerd, packe t-level debugging, and kernel troubleshooting.

  • Experience with Infrastructure as Code (IaC) and configuration management tools, including Terraform, Chef, and Pulumi to ensure scalable and repeatable infrastructure provisioning.

  • Creative problem-solving skills and excellent communication.

#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.

Ready to Own What's Next?

We know finding a new job can be intimidating. Don't let imposter syndrome stop you from applying! Even if you don't think you tick off every box in this job description, we'd still love for you to apply or join our Talent Community. 

DraftKings is proud to be an equal-opportunity employer. We do not tolerate discrimination of any kind and are committed to providing equal employment opportunities regardless of your gender identity, race, nationality, religion, sexual orientation, status as a protected veteran, or status as an individual with a disability.

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Your Benefits

In Bulgaria

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Health Benefits

We take your wellbeing and health seriously. DraftKings offers comprehensive health benefits, including various medical plans, dental, and vision.

Wellbeing Program

You’ll have free access to programs such as free therapy sessions with Lyra Mental Health Solution, Lyra Employee Assistance Program, the Calm App, Virtual Yoga Classes, and many more.

Parental Leave & Support

We are proud to give 14 weeks of 100% paid parental leave to all global team members and offer workplace lactation support.

Family Planning

DraftKings is proud to offer a range of benefits that support family planning. We've got you covered whether you’re considering adoption, surrogacy, fertility treatments, or other family planning.

Vacation Days

Taking time off is important for your wellbeing. We are proud to offer 25 vacation days per year to our teammates in Bulgaria.

Food Voucher

On top of free drinks and snacks in the office, we are pleased to offer 200 BGN food vouchers per month to our teammates in Bulgaria.

MultiSport Card

Whether it’s cardio, yoga, or training for a marathon, we’ll cover 50% of your monthly sports card in a wide network of sports facilities in Bulgaria. All you need to do is find your favorite gym.

Financial Planning

We’ll help you plan for your financial future and success. With programs like Origin Financial, we’ll set you up for future healthy financial habits and goals.

Commuter Benefits

No matter how you commute to and from the office, we want to help you lower costs. Once you join, you’ll have access to our commuter benefits to help you save money on your daily commute.