Senior Software Integration Engineer - Workday Integrations and Extend

Mastercard is seeking a Senior Software Integration Engineer for its P&C Engineering team. The role builds and supports Workday Extend employee applications and integrations, while contributing to platform modernization, automation, and reliable delivery.

Responsibilities:

• Design, develop, test, deploy, and support enterprise applications using Workday Extend, including data models, pages, business process integration, and security configuration
• Take Extend applications from concept through the full application lifecycle, including documentation and ongoing support
• Support and maintain our existing Extend applications, partnering with users and Product to resolve issues, respond to enhancement requests, and keep them reliable and secure
• Optimize existing Extend applications for performance, usability, and maintainability, including refactoring, reducing technical debt, and adopting new Workday Extend capabilities as they become available
• Create reusable components, shared services, and patterns that help our team deliver Extend solutions faster and more consistently
• Evaluate new Workday Extend capabilities, prototype ideas, and share what you learn with the team
• Develop and support integrations using Studio, Orchestrate, Core Connectors, EIBs, REST and SOAP APIs, and Workday Web Services
• Apply sound integration patterns and development standards so solutions are secure, observable, and maintainable
• Contribute to modernizing existing integrations through automation, AI-assisted development, and reusable components
• Partner with Product Owners, Security, Engineering, and business stakeholders to refine requirements and translate them into well-designed technical solutions
• Contribute to Agile ceremonies, including backlog refinement, sprint planning, estimation, and retrospectives, and help us keep improving how we deliver
• Balance new feature delivery, Extend application optimization, technical debt reduction, and operational support to keep the platform stable and valuable
• Participate in architecture discussions, design reviews, and code reviews, offering feedback and learning from teammates
• Help troubleshoot production issues, perform root cause analysis, and drive lasting fixes
• Mentor junior engineers and contractors through pairing, code reviews, and knowledge sharing
• Spot workflow bottlenecks and manual effort in Workday business processes and integrations, and help automate them using Workday, AI, and reusable services
• Help us build repeatable engineering practices with CI/CD, monitoring, and standardized development approaches

Requirements:

• Hands-on experience building, supporting, and optimizing applications with Workday Extend, including application architecture, data models, pages, security, and the full application lifecycle
• Hands-on experience developing enterprise applications on the Workday platform
• Solid experience with Workday integrations, including Studio, Orchestrate, Core Connectors, EIBs, APIs, and Workday Web Services
• Proficiency with REST, SOAP, JSON, XML, XSLT, and common enterprise integration patterns
• Strong analytical and problem-solving skills, with the ability to break down complex technical and business challenges
• Clear communication with both technical and non-technical audiences
• Experience in Agile delivery environments, including backlog refinement, sprint planning, estimation, and iterative delivery
• Ability to manage competing priorities across project work and operational support
• Interest in mentoring teammates and helping raise the team's technical bar
• Workday Extend and Workday Integration certifications (strongly preferred)
• Experience with CI/CD, automation, monitoring, and AI-assisted development
• Experience improving business processes or integration workflows through automation
• A passion for innovation, continuous learning, and technical excellence