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Senior Software Engineer - REDAPL Graph Engine

Dublin💼 Full-time🗓 2026-05-27 → 2026-09-25

Core

Build a high-performance query engine for REDAPL, Datadog's Referential Data Platform, to support efficient relationship traversals for demanding workloads.

Role type

Senior Software Engineer (Graph Engine & Query Systems)

Builds

REDAPL graph engine and query pipelines serving Cloud Security, Cost Management, and Service Catalog products

Domain

Cloud Infrastructure Observability & Graph Data Processing

Deliverable

production ML models | product features | infrastructure

Required skills

distributed systems, back-end engineering, data stores, system design, scalability, resilience, query planning

Preferred skills

Graph Databases (Neo4j, Memgraph, JanusGraph, ArangoDB, Amazon Neptune, PuppyGraph), Apache Iceberg, query engines (Trino, Calcite, Substrait, DataFusion)

Technologies

Neo4j, Memgraph, JanusGraph, ArangoDB, Amazon Neptune, PuppyGraph, Apache Iceberg, Trino, Calcite, Substrait, DataFusion

Responsibilities

Build a query engine supporting efficient relationship traversals; drive high-priority projects to increase platform value and scalability; lead architectural platform decisions; identify system risks and design reliability solutions; collaborate with product teams on requirements and roadmap planning

Seniority

Senior, hands-on IC with leadership responsibilities

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