WEX · 5 days ago
Senior Staff Software Engineer – Advanced Data Engineering
San Francisco Bay Area
Full-time
Hybrid
Senior Level, Lead/Staff
$158K/yr - $210K/yr
10+ years expWEX is building a modern, enterprise-wide Data-as-a-Service (DaaS) platform, focusing on the Semantic Data Modeling layer that transforms raw data into trusted, consistent, and reusable data objects. As a Senior Staff Software Engineer, you will lead the design and engineering of large-scale semantic data models, ensuring high-performance and semantic alignment across the enterprise.
Financial ServicesFinTechPaymentsSoftware
Responsibilities
Architect and implement the platform foundations for semantic data modeling, including reusable modeling patterns, data versioning, and temporal semantics
Translate complex business definitions into scalable, interpretable, and trustworthy data entities used across analytics, AI/ML, APIs, and operational workflows
Own the modeling of high-volume, high-complexity domains—such as customers, fleets, transactions, and providers—at enterprise scale
Drive rigorous enforcement of data validation, referential integrity, and schema evolution, enabling semantic consistency across domains
Collaborate closely with business, product, and analytics teams to ensure semantic models reflect how WEX understands and uses its data
Define best practices for building modular, testable, and maintainable pipelines, and lead their implementation across a growing team
Guide platform evolution by partnering with Control Plane, Governance, and DataOps teams to embed observability, lineage, and traceability
Qualification
Required
10+ years of experience in software or data engineering, with a focus on large-scale systems and data modeling platforms
Expertise in data architecture and semantic modeling—with proven experience in designing entity-centric, reusable models (e.g., Customer 360, Provider 360)
Deep understanding of data structures, transformation patterns, temporal modeling, and business logic abstraction
Strong software engineering background with experience in building scalable systems using modern architectural patterns
Experience with data lifecycle management, including versioning, auditability, and reproducibility of derived data objects
Excellent communication skills and a track record of cross-functional leadership across engineering, product, and business stakeholders
A passion for building platforms that promote trust, consistency, and scalability in enterprise data usage
Benefits
Health, dental and vision insurances
Retirement savings plan
Paid time off
Health savings account
Flexible spending accounts
Life insurance
Disability insurance
Tuition reimbursement
And more
Company
WEX
Wex is a financial technology service provider for fleet, travel and healthcare industries.
5001-10000 employees
H1B Sponsorship
WEX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (22)
2024 (10)
2023 (12)
2022 (20)
2021 (14)
2020 (18)
Funding
Current Stage
Public CompanyTotal Funding
$900MKey Investors
Warburg Pincus
2025-02-25Post Ipo Debt· $500M
2020-06-30Post Ipo Equity· $90M
2020-06-30Post Ipo Debt· $310M
Leadership Team
Melissa Smith
Chair and Chief Executive Officer
Sachin Dhawan
Chief Technology Officer
Recent News
2026-01-03
2025-12-05
2025-12-02
Company data provided by crunchbase