Senior Backend Engineer

About the Team

Join Horizon3.ai's Pentest Data Platform (PDP) team as we execute our largest architectural transformation: evolving from a batch-centric monolith to a real-time, event-driven microservice architecture powering NodeZeroTM.

Your Core Mandate:

• Own Event-Driven Pipelines: Design and operate streaming services (Kafka) that ingest pentest telemetry in near-real time. Convert batch business logic into scalable stream processing to reduce latency from days to seconds.
• Solve Asset Identity Challenges: Implement advanced matching, reconciliation, and graph modeling to eliminate false splits/overcounts during active operations.
• Drive Enterprise Scalability: Manage PostgreSQL performance for hundreds of thousands of hosts per customer with zero-regression fidelity across schema migrations.
• Build Platform Infrastructure: Develop auto-discovery tooling, orchestrate ETL via Argo/Airflow, and maintain observability dashboards (Datadog/OpenTelemetry) to define SLOs for mission-critical processing.