The Ads Data Platform Team at Microsoft AI is seeking a Principal Software Engineer to design and operate high-scale systems that process billions of ad-serving events. This role focuses on building data applications that support Microsoft Ads' growth and involves working with cutting-edge technologies in distributed systems and machine learning. The team values innovation and problem-solving, aiming to create measurable business impact. Candidates will be part of an inclusive culture that encourages collaboration and respect.

• Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• Master's Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
• Experience in Azure.
• Experience in Machine learning and online system design, implementation and qualification.
• 2+ years’ experience in Distributed Systems and Big Data Technologies such as Spark, Hadoop, HDFS, Kafka, Flink, Scala.

• Work with BingAds stakeholders to determine requirements for new features to drive up Ads business.
• Create system design for feature requirements and assure system meets security and compliance requirements.
• Implement features with high efficiency, extensibility, diagnosability, reliability, and maintainability.
• Review code to ensure it meets quality standards and is appropriate for the scale of the product feature.
• Maintain operations of live service as issues arise on a rotational, on-call basis.
• Identify solutions and mitigations to simple and complex issues and escalate as necessary.
• Act as a Designated Responsible Individual (DRI) monitoring system/product feature/service for degradation.
• Build knowledge and share new ideas to improve software developer tools.
• Profile and analyze distributed system performance and capacity bottlenecks.
• Propose and implement solutions to improve system latency and capacity.

• Employees at Microsoft are often offered comprehensive, “world-class” benefits—including health and mental-wellness programs, competitive pay with bonuses and stock awards, and retirement/savings options. Time-off and flexibility are common, with generous vacation and holidays, parental and caregiver leave, and flexible work schedules, alongside learning support, employee resource groups, product discounts, and matching-gifts/volunteering programs. Specific benefits can vary by region.