Senior Software Engineer, Referential Data Platform (REDAPL)

About Datadog

Datadog is the leading observability and security platform for the AI era, providing unified visibility across the technology stack to manage complexity at scale. We empower businesses with AI-driven insights to detect and resolve issues proactively, enabling them to move faster with clarity and confidence. Learn more about #DatadogLife on Instagram, LinkedIn, and the Datadog Learning Center.

About the Role

We are seeking a Senior Software Engineer to elevate REDAPL, our Referential Data Platform. REDAPL is central to tracking customer infrastructure resources and relationships, enabling critical insights into performance, cost, security, and more across products like Cloud Security Posture Management, Resource Catalog, and Cloud Cost Management. The platform handles over 4.5 million updates per second.

As a Senior Engineer, you will lead and collaborate on projects, contributing to key technical decisions in data ingestion, processing, and query pipelines. You'll drive platform improvements in value, resilience, and scalability.

At Datadog, we value our office culture—the relationships and collaboration it builds and the creativity it brings to the table. We operate as a hybrid workplace to ensure our Datadogs can create a work-life harmony that best fits them.

What You’ll Do

• Build a query engine supporting efficient relationship traversals for demanding workloads.
• Contribute to design and drive high-priority, high-visibility projects to enhance platform value, resilience, and scalability across multiple teams.
• Lead and guide other engineers in architectural platform decisions.
• Identify system risks and reliability trends, designing solutions to address them.
• Provide input on prioritizing engineering-led initiatives for short- and long-term planning.
• Collaborate with internal product teams to understand requirements and plan for their growth as they integrate with REDAPL.

Who You Are

• BS/MS/PhD in Computer Science, Engineering, or related field, or equivalent experience.
• Extensive experience with multiple types of data stores.
• Proven contributions to platform or infrastructure-focused initiatives over several years.
• Experience leading impactful technical initiatives where performance, cost efficiency, ease of use, and resilience are key concerns.
• Significant back-end engineering experience, including building and operating distributed systems at high scale.

Bonus Points

• Experience with Graph Databases (e.g., Neo4j, Memgraph, JanusGraph, ArangoDB, Amazon Neptune, PuppyGraph).
• Production-grade experience with Apache Iceberg.
• Solid grasp of query planning or contributions to production-grade query engines/projects (e.g., Trino, Calcite, Substrait, DataFusion), ideally demonstrated through open-source contributions or PMC membership.

Datadog values people from all walks of life. We understand not everyone will meet all the above qualifications on day one. If you’re passionate about technology and want to grow your skills, we encourage you to apply.

Benefits and Growth

• Build tools for fellow software engineers and use them to accelerate development.
• Significant influence on product direction and business impact.
• Work with skilled, knowledgeable, and kind teammates.
• Competitive global benefits.
• Continuous professional development.

Benefits and Growth listed above may vary based on country of employment and nature of employment with Datadog.

Equal Opportunity at Datadog

Datadog is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and other characteristics protected by law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. Review our Candidate Legal Notices.

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