Senior BackEnd Software Engineer

The Crown Is Yours

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As a Senior BackEnd Software Engineer, you’ll build the high-scale backend systems that power real-time experiences for millions. You’ll ship production-ready code from day one, owning services end-to-end and solving complex engineering challenges in a fast-moving, always-on environment. You’ll work shoulder-to-shoulder with talented engineers, architects, and product leaders who value quality, speed, and impact. This is a role where your code ships fast, your ideas shape the future, and your growth never stalls.

What You'll Do

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• Design and develop scalable event-driven systems and APIs that power high-impact applications used by a large, engaged user base around the clock.
• Deliver production-ready code from day one, driving forward new features and capabilities.
• Prioritize agility and scalability equally—supporting rapid product rollouts while ensuring systems are built to pivot and perform at scale.
• Own the full software development lifecycle, from initial design through long-term maintenance, performance tuning, and reliability improvements.
• Triage, investigate, and resolve production issues with urgency, contributing to a culture of continuous improvement and operational excellence.
• Ensure all components are built to withstand high volume and real-time demands, optimizing for speed and efficiency.
• Collaborate cross-functionally to align technical execution with product goals, mentoring peers and driving quality standards across the team.

What You'll Bring

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• 3+ years of professional experience in object-oriented backend development using languages such as C# or Java, with deep knowledge of OOP principles, design patterns, and microservices system architecture.
• Practical experience with modern messaging and event streaming technologies (e.g., Kafka, RabbitMQ, AWS Kinesis).
• Proven success designing and building scalable distributed systems in Cloud environments such as AWS or Google Cloud Platform (GCP).
• Proficiency with SQL and the ability to analyze structured event data to support debugging and validation.
• Advanced proficiency in writing and maintaining automated test suites—including unit, integration, and performance tests—for large-scale backend services.
• A demonstrated ability to mentor and grow other engineers through code reviews, design reviews, and collaborative debugging.

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Join Our Team

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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.