Sr. Software Engineer (AI & Backend)

WEX Inc. (branded as WEX) is a publicly traded payments technology company that provides payment processing, issuance, and information-management solutions for businesses and institutions across multiple verticals. WEX’s platform combines payment processing, card issuance, data services, and technology integrations to enable customers and partners to manage and automate payments, control spending, and extract actionable intelligence from transaction data. The company’s solutions are built to serve commercial payment use cases including fleet and fuel management, corporate and travel payments, virtual card and accounts-payable automation, healthcare and benefits payments, and partner and issuer services for banks and fintechs. Company overview and positioning WEX positions itself as a B2B payments technology provider that delivers both turnkey payment programs and white-label, API-driven platform capabilities to customers and partners. It operates globally and supports multi-currency settlement, card issuance and processing, transaction-level data enrichment, and reporting tools designed for business customers and partner organizations. WEX’s offerings are intended to reduce manual processes, improve controls and compliance, and provide real-time visibility into spend through integrated software and payment rails. Core business activities WEX’s core activities center on developing, operating, and supporting software-enabled payment programs and services. Key activities include: issuing and processing payment cards (physical and virtual), onboarding and managing fleet and corporate payment programs, providing data-clearing and settlement services, integrating with partners through APIs and software interfaces, and delivering analytics and reporting that enable clients to manage costs and operational performance. The company also supports merchant acceptance networks, fuels and service networks for fleet programs, and partners with banks, payment processors, travel management companies, and benefits administrators to deliver compliant, branded payment solutions. Main products and services WEX’s product portfolio spans multiple vertical suites tailored to distinct market needs. Principal product areas include: - Fleet and fuel payment solutions: WEX offers fleet card programs and related account management tools that enable commercial fleets to purchase fuel, maintenance services, and other vehicle-related items while enforcing policy controls such as driver-level limits, merchant controls, purchase-type restrictions, and reporting for fuel tax and expense management. These solutions typically include network acceptance management, transaction processing, and reconciliation services. - Corporate and travel payments: WEX provides payment solutions for corporate travel and expense management, including corporate card programs, virtual card issuance for travel bookings and supplier payments, and integrated billing and reconciliation between travel management companies (TMCs), travel suppliers, and corporate customers. These services are geared to reduce manual invoicing and simplify supplier settlement. - Commercial card and virtual card platforms: WEX supports virtual card generation and program management to help organizations automate accounts payable, enable single-use or single-supplier virtual cards, and integrate virtual card flows with ERP and accounting systems to improve invoice-to-pay processes and supplier reconciliation. - Healthcare and benefits payments: Through WEX Health and related offerings, the company provides payment and administration solutions for consumer-directed healthcare and benefits programs. These tools support benefit account administration, card-based benefit access (e.g., health savings accounts, flexible spending arrangements), claims-related payment flows, and reporting required by plan administrators and sponsors. - Issuing, processing, and platform services for partners: WEX supplies white-label and co-branded services to banks, financial institutions, and fintech partners that require issuing, tokenization, transaction processing, settlement, fraud monitoring, and compliance infrastructure. The company’s APIs and platform services enable partners to launch payment programs more quickly while leveraging WEX’s processing and acceptance networks. - Data, analytics, and value-added services: A significant part of WEX’s value proposition is transaction-level data enrichment, reporting dashboards, and analytics that help customers control spend, identify savings opportunities, and support tax and regulatory reporting. These services assist customers in deriving operational insights from payment activity and in automating reconciliation and accounting. Operational scope and clientele WEX serves a diverse range of clients including large and small commercial fleets, corporate travel buyers and travel management companies, healthcare plan administrators, banks and credit unions, fintech companies, and merchant partners. The company’s platform is designed to be adaptable for direct customers as well as partners who require a white-label or embedded payments solution. WEX operates in multiple geographic regions, supporting cross-border payments and multi-currency processing where required by client programs. Regulatory, technology, and integration aspects WEX’s business integrates payments rails, card networks, settlement and clearing systems, and software integrations into enterprise back-office systems. This requires compliance with financial services regulations and card network rules, fraud prevention and data security standards (including card data protection practices), and the technical ability to interoperate with customer ERPs, travel booking systems, and partner platforms. The company emphasizes API-driven integration and scalable processing infrastructure to support high-volume transaction flows and global program rollouts. Public status and corporate identity WEX is a publicly listed company. It is often cited as a payments-technology provider specializing in commercial and programmatic payment solutions. The company communicates its product suite, partner integrations, and industry vertical focus through its corporate site and investor materials, positioning itself as a technology-driven provider of end-to-end commercial payment programs and information services for businesses and institutional partners.