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Principal Software Engineer - Solution Architect

1 month ago O'Fallon, MO

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

Principal Software Engineer - Solution Architect

Overview
Mastercard's Commercial Solutions team is a rapidly growing organization with responsibilities to deliver innovative solutions to help our customers grow and expand their business. Focused on thinking big and scaling fast around the globe, this dynamic team is responsible for end-to-end solutions for a diverse global customer base. We are seeking a Principal Software Engineer - Solution Architect to lead cross-functional development efforts and drive architectural excellence across our suite of commercial products.

Role:
- Design and develop scalable, performant, and secure web applications.
- Provide architectural leadership and technical direction across systems and applications.
- Mentor and guide junior engineers, fostering a culture of growth and collaboration.
- Champion user-centered design principles throughout the development lifecycle.
- Lead design, technical, and code reviews to ensure high-quality deliverables.
- Establish and enforce coding standards and best practices.
- Promote Agile methodologies, continuous integration/delivery, and automation.
- Collaborate cross-functionally to manage dependencies and mitigate risks.
- Architect and implement cloud-native solutions using Java Spring/Spring Boot.
- Design and implement scalable solutions on cloud platforms such as Azure and AWS.

All About You:
- Advanced knowledge of Java Spring/Spring Boot for backend development.
- Proven experience designing and developing modern, externally facing web applications using frameworks such as Angular or React.
- Strong proficiency in JavaScript, including deep understanding of its nuances.
- Expertise in building RESTful APIs following industry best practices.
- Hands-on experience with cloud-native architecture and deployment on Azure and/or AWS.
- Familiarity with messaging frameworks and event-driven architecture.
- Experience optimizing web applications for performance and memory usage.
- Knowledge of authentication and authorization mechanisms, including JWT.
- Experience collaborating with Quality Engineering teams to define testing strategies.
- Commitment to code quality through unit testing and end-to-end testing practices.

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- Deep understanding of CI/CD pipelines and related toolsets.
- Practical experience applying Agile principles and adapting them to team needs.
- Proficiency with Git-based version control systems.
- Demonstrated ability to build ADA and WCAG-compliant web applications.

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 reasonable_accommodation@mastercard.com 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.

Pay Ranges
Arlington, Virginia: $190,000 - $304,000 USD

O'Fallon, Missouri: $165,000 - $264,000 USD

Client-provided location(s): O'Fallon, MO
Job ID: Mastercard-22331_R-257560-754f335e888f25fee51a86a840c9f566
Employment Type: FULL_TIME
Posted: 2025-08-08T19:53:29

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Short-Term Disability
    • Long-Term Disability
    • FSA
    • FSA With Employer Contribution
    • HSA
    • HSA With Employer Contribution
    • Fitness Subsidies
    • On-Site Gym
    • Pet Insurance
    • Mental Health Benefits
    • Virtual Fitness Classes
    • Health Reimbursement Account
  • Parental Benefits

    • Birth Parent or Maternity Leave
    • Non-Birth Parent or Paternity Leave
    • Fertility Benefits
    • Adoption Assistance Program
    • Family Support Resources
    • On-site/Nearby Childcare
    • Adoption Leave
  • Work Flexibility

    • Flexible Work Hours
    • Remote Work Opportunities
    • Hybrid Work Opportunities
  • Office Life and Perks

    • Commuter Benefits Program
    • Casual Dress
    • Happy Hours
    • Snacks
    • Company Outings
    • On-Site Cafeteria
    • Holiday Events
    • Some Meals Provided
  • Vacation and Time Off

    • Paid Vacation
    • Paid Holidays
    • Personal/Sick Days
    • Leave of Absence
    • Volunteer Time Off
  • Financial and Retirement

    • 401(K) With Company Matching
    • Performance Bonus
    • Relocation Assistance
    • Financial Counseling
    • Stock Purchase Program
    • 401(K)
    • Company Equity
  • Professional Development

    • Tuition Reimbursement
    • Promote From Within
    • Mentor Program
    • Access to Online Courses
    • Lunch and Learns
    • Internship Program
    • Work Visa Sponsorship
    • Leadership Training Program
    • Associate or Rotational Training Program
    • Shadowing Opportunities
  • Diversity and Inclusion

    • Employee Resource Groups (ERG)