Senior Software Engineer. Backend

Draftkings Inc.  ยท  via Backpacker Job Board
๐Ÿ“ Dublin, Leinster, Ireland โฐ Full Time

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. Itโ€™s transforming how we enhance customer experiences, streamline operations, and unlock new possibilities. Our teams are energized by innovation and readily embrace emerging technology. Weโ€™re not waiting for the future to arrive. Weโ€™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 Software Engineer, you'll build the high-scale backend systems that power real-time experiences for millions of customers. 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 passionate engineers, architects, and product leaders who value quality, speed, and impact. Your ideas will shape what comes next and your growth won't slow down.

What You'll Do



  • Design and develop scalable back-end systems and APIs that power high-impact applications used by a large, engaged user base around the clock.



  • Deliver production-ready code, driving forward new features and capabilities in a 24/7 sports betting environment.



  • Prioritize agility and scalability equally to support 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.



  • Use AI as part of your daily engineering workflow and build AI-powered or agentic tools that improve how the team works.



  • Collaborate cross-functionally to align technical execution with product goals, mentoring peers and driving quality standards across the team.







What You'll Bring




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



  • At least 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 backend system architecture.



  • Proven success designing and building scalable distributed systems in Cloud environments such as AWS or Google Cloud Platform (GCP).



  • Hands-on experience using AI coding tools and agents to deliver software, automate engineering workflows, or improve team effectiveness.



  • 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

Weโ€™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. Donโ€™t worry, weโ€™ll guide you through the process if this is relevant to your role.