Mid-Level Software Engineer - Semantic Data Modeling

WEX is on a mission to transform its data into a strategic, enterprise-wide asset. As a Software Engineer on the Semantic Data Modeling team, you will help build the core data foundation that defines how we structure, transform, and understand key business entities across domains.

Responsibilities:

• Develop and maintain semantically consistent 360 data models used across WEX products and business functions
• Collaborate with senior engineers and architects to build robust, reusable data transformations and derived attributes
• Write clean, scalable, and testable code to implement complex logic across wide, entity-based data tables
• Help improve data standardization, enrichment, validation, and schema enforcement throughout the modeling layer
• Participate in design discussions, code reviews, and backlog grooming for semantic layer initiatives
• Work cross-functionally with data acquisition, data products, and business teams to deliver trusted data assets
• Gain a good understanding of data and the business/product and user experience logic behind the data
• Document technical approaches and ensure traceability of business logic and data derivation

Requirements:

• 3–6 years of experience as a software or data engineer, preferably in environments working with large-scale datasets and complex transformations
• Strong programming skills in SQL and at least one general-purpose language (Python, Scala, or similar)
• Understanding of data modeling principles—especially entity-centric and wide-table designs
• Familiarity with software engineering practices: testing, version control, modularization, documentation
• A mindset for scalability, quality, and clarity—you care about getting things right, not just getting them done
• Curiosity, ownership, and a collaborative approach to building shared systems and platforms