Principal Software Engineer, Data

WEX

full-time

Posted on: 9/21/2025

Origin: • 🇺🇸 United States • California, Illinois

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💰 $195,000 - $260,000 per year

Lead

AirflowCloudDistributed SystemsKafkaRaySpark

About the role

Architect the DaaS platform end-to-end: Define the next generation of WEX’s enterprise data stack spanning ingestion, semantic data modeling, metadata, and product delivery
Establish platform standards: Set reusable frameworks for ingestion, modeling, lineage, observability, and access control
Guide technical strategy at scale: Partner with senior engineering, product, and business leaders to align data architecture with strategic objectives
Solve for scale, reliability, and trust: Design systems that handle billions of records, guarantee semantic consistency, and deliver auditable, governed data assets
Mentor and multiply: Coach senior staff engineers and architects, instilling best practices in distributed systems, platform reliability, and semantic clarity
Drive innovation: Explore and incorporate modern open-source and cloud-native technologies (e.g., Spark, Iceberg, Kafka, Delta, DBT, Ray, ML-ready data services)
Be the bridge: Collaborate across Data Acquisition, Semantic Modeling, Data Products, and Governance teams to ensure data is trusted, consistent, and usable across every business domain

12–15+ years of experience in software or platform engineering
proven track record of building and scaling large-scale data platforms
Expertise in distributed systems, data acquisition, and semantic modeling
Architectural ownership of systems processing tens of millions to billions of records per day
Ability to set cross-domain architectural standards and influence adoption across multiple engineering teams
Strong background in data lifecycle management (versioning, auditability, observability, lineage, reproducibility)
Deep experience with modern data ecosystems: streaming (Kafka, Flink), batch (Spark, DBT), storage (Iceberg, Delta), orchestration (Airflow, Dagster), and APIs
Exceptional communication and leadership skills
Passion for creating platforms that endure