Staff Software Engineer - Query Experience

About Datadog

We're on a mission to build the best observability platform in the world for engineers to understand and scale their systems, applications, and teams. We operate at high scale - trillions of data points per day - providing always-on alerting, metrics visualization, logs, and application tracing for tens of thousands of companies. Our engineering culture values pragmatism, honesty, and simplicity to solve hard problems the right way.

The Opportunity

Query Experience is the organization responsible for defining and delivering the unified interface through which all internal and external users query and interact with data at Datadog.

We build the APIs, planning layers, semantic infrastructure, and UI platforms that power querying across all telemetry data types-metrics, logs, traces, events, and more. Our work spans developer experience, natural language interfaces, schema-aware querying, and intelligent access patterns. Together, we support hundreds of engineers, countless dashboards, AI agents, monitors, and backend systems across Datadog.

Datadog is building the next generation of federated query systems, enabling:

• Cross-org & cross-region querying for exec dashboards and incident response
• Federated search into customer-managed stores
• Data sovereignty-aware federation, where sensitive fields are controlled

At Datadog, we place value in 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:

• Lead design of the query planner that splits, dispatches, and joins queries across orgs, regions, and customer stores
• Architect and implement the service to transmit plans and data securely across Datadog regions and customer space
• Define and enforce data sovereignty policies
• Collaborate with product teams to bring this into dashboards, monitors, SOC workflows, and executive KPIs.

Who You Are:

• You have a BS/MS/PhD in a scientific field or equivalent experience
• You have 10+ years of relevant engineering experience, and experience acting as a technical lead
• You have experience with query federation, distributed joins/unions, and multi-source query execution (e.g., Substrait, Trino, DataFusion, Calcite, Presto).
• You have a strong grasp of query optimization under constraints like cost, latency, and partial pushdowns
• You are excited to work cross-functionally to build alignment

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

Benefits and Growth:

• Get to build tools for software engineers, just like yourself. And use the tools we build to accelerate our development.
• Have a lot of influence on product direction and impact on the business
• Work with skilled, knowledgeable, and kind teammates who are happy to teach and learn
• Competitive global benefits
• Continuous professional development

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