Senior Software Integration Engineer - Workday Integrations and Extend

Our Purpose
Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.
Title and Summary
Senior Software Integration Engineer - Workday Integrations and Extend
Overview
The P&C Engineering team designs, develops, and implements technology solutions that improve and engage Mastercard employees across the globe. We're building the next generation of our Workday platform, and Workday Extend is at the center of it.
- Do you enjoy building enterprise applications that solve complex business challenges at global scale?
- Are you excited by the idea of turning employee needs into polished, secure Workday Extend applications?
- Do you thrive where modernization, automation, and AI are strategic priorities?
- Do you like working alongside engineers, product partners, and business teams to find the right solution together?
As a Senior Software Integration Engineer, you'll be a hands-on builder on our Workday Integrations team, with a strong focus on Workday Extend. You'll bring hands-on Extend development experience and use it to build new employee applications, support and optimize the Extend applications we already run, and deliver the integrations behind them using Orchestrate, APIs, and Studio. You'll work closely with our Lead engineers and architects, contributing your ideas to technical direction while owning the delivery of your own solutions.
Role
Build with Workday Extend
- 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.
Build and maintain integrations
- 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.
Collaborate and deliver
- 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.
Improve how we work
- 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.
All About You
Core experience
- 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.
How you work
- 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.
Nice to have
- 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.
Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.
Corporate Security Responsibility
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard's security policies and practices;
• Ensure the confidentiality and integrity of the information being accessed;
• Report any suspected information security violation or breach, and
• Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.THIS POSTING IS NOT FOR A CURRENT VACANCY, BUT MASTERCARD IS SEEKING RESUMES TO REVIEW IN THE FUTURE WHEN JOBS BECOME AVAILABLE.
Pay Ranges
O'Fallon, Missouri: $96,000 - $163,000 USD
Remote - California: $96,000 - $163,000 USD
Remote - Florida: $96,000 - $163,000 USD
Remote - Georgia: $96,000 - $163,000 USD
Remote - Missouri: $96,000 - $163,000 USD
Remote - New York: $96,000 - $163,000 USD
Remote - Texas: $96,000 - $163,000 USD
Remote - Virginia: $96,000 - $163,000 USD
Job Posting Window
Posting windows may change based on the volume of applications received and business necessity. Candidates are encouraged to apply expeditiously.