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Expel · 2 months ago

Principal Software Engineer (Data Normalization & Enrichment)

United States

Full-time

Remote

Lead/Staff

$163K/yr - $237K/yr

10+ years exp

Expel is on a mission to make security easy to understand and improve. They are seeking a Principal Engineer to lead the technical architecture of their Data Normalization and Enrichment services, focusing on transforming raw security data into structured and enriched information for threat detection.

Cloud SecurityCyber SecurityNetwork SecuritySaaS

Growth Opportunities

No H1B

U.S. Citizen Only

Responsibilities

Architect and own the real-time systems that transform a firehose of raw security logs into a perfectly structured, enriched, and analysis-ready data stream

Become our expert on security data schemas, leading the charge on data modeling and the adoption of common information models like the Open Cybersecurity Schema Framework (OCSF)

Drive the technical strategy for enriching our data, integrating threat intelligence and other contextual information to make our detection capabilities smarter

Collaborate closely with our detection and response engineers to understand their needs and deliver data that empowers them to find and stop threats faster

Lead and mentor other engineers, setting the bar for building performant, resilient, and scalable data transformation systems

Qualification

Real-time data processingData modelingGo programmingPython programmingStream-based architecturesCloud technologiesPerformance optimizationMentoringCommunicationCollaboration

Required

A passion for data quality and a deep appreciation for the power of a well-designed data model

An obsession with performance, latency, and building highly efficient, real-time systems

Professional experience developing in Go and/or Python

Expertise in real-time data processing and stream-based architectures (e.g., Kafka, Flink, Beam) and data serialization formats (e.g., Avro, Protobuf)

Proven experience with data modeling, and an understanding of (or strong desire to learn) common information models like OCSF

Hands-on experience with cloud and data technologies like Google Cloud (BigQuery, Pub/Sub) or AWS equivalents

The ability to lead through influence, communicate complex ideas clearly, and mentor other senior engineers

Typically 10+ years of professional software engineering experience