Principal Software Architect

Principal Software Architect Mastercard 3.6 ( ) O'Fallon, MO on company site Why you should apply for a job to

Mastercard :

4.8/5 in supportive management 71% say women are treated fairly and equally to men 100% say the CEO supports gender diversity Ratings are based on anonymous reviews by Fairygodboss members. See all reviews # 22331_R-275114-754f335e888f25fee51a86a840c9f566 Position summary eholders. As a Principal Architect, you will operate across organizational boundaries, partnering with engineers, engineering leaders, product managers, and senior leadership to address the most complex and consequential technical challenges. You will not manage people directly, but you will mentor senior engineers, guide architectural decisions, and help align the organization around coherent technical direction.

This role is inherently collaborative:

success depends on the ability to gather input, build shared understanding, and drive alignment among teams with different goals, constraints, and perspectives. Key Role Architectural Leadership & Strategy

• Shape and evolve architectural direction across multiple teams and systems through consensus-driven decision making
• Identify cross-cutting architectural concerns and guide teams toward shared patterns, principles, and solutions
• Evaluate trade-offs between short-term delivery and long-term system health, articulating risks and options clearly
• Help the organization converge on architectures that are scalable, resilient, secure, and operationally sound Cross-Functional Influence
• Act as a trusted technical partner to engineers, engineering managers, product leaders, and senior leadership
• Facilitate architectural discussions that bring together diverse viewpoints and constraints
• Translate complex technical concepts into clear, actionable guidance for both technical and non-technical audiences
• Build strong working relationships across teams to enable alignment without formal authority
• Hands-On Technical Contribution
• Contribute directly to the most complex and high-impact technical problems (approximately 10-20% hands-on)
• Lead design spikes, proof-of-concept efforts, and deep technical investigations where clarity is needed
• Participate in design and code reviews for critical initiatives to ensure architectural intent is preserved
• Support teams during difficult implementation or scaling challenges Mentorship & Technical Excellence
• Mentor senior engineers and emerging technical leaders across the organization
• Raise the quality of engineering through example, coaching, and thoughtful feedback
• Promote strong engineering practices in system design, testing, documentation, and operational readiness
• Contribute to a culture of technical rigor, collaboration, and continuous improvement All About You
• 10+ years of professional software engineering experience
• Proven experience operating at a principal or senior architecture level across multiple teams
• Strong track record designing and evolving complex, distributed systems
• Deep understanding of modern software architecture patterns (e.g., service-oriented, event-driven, API-centric systems)
• Experience with cloud-native architectures and production concerns such as reliability, scalability, observability, and security
• Demonstrated ability to influence technical direction through collaboration and consensus rather than authority
• Excellent communication skills, including comfort engaging with senior leadership Preferred Qualifications
• Experience working in platform, shared-services, or foundational infrastructure contexts
• Background in environments with high scale, high availability, or meaningful regulatory constraints
• Experience helping organizations converge on architectural standards while preserving team autonomy
• A reputation for sound judgment and pragmatic decision-making under ambiguity What Success Looks Like
• Architectural decisions improve in quality and consistency across teams
• Teams align more quickly on shared approaches without feeling constrained
• Complex initiatives encounter fewer late-stage architectural surprises
• Senior engineers and leaders proactively seek out your perspective
• Over time, the system becomes easier to evolve, scale, and operate Why This Role Is Different
• This is not a role for someone who relies on formal authority or mandates architecture from above.
• It is for an architect who builds trust through technical depth and judgment, values collaboration and shared ownership, is comfortable working through ambiguity and disagreement, and knows when to go deep technically and when to step back and align people.

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 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.

Pay Ranges Purchase, New York:

$195,000

• $323,000

USD Atlanta, Georgia:

$170,000

• $281,000

USD O'Fallon, Missouri:

$170,000

• $281,000 USD Why you should apply for a job to

Mastercard :

4.8/5 in supportive management 71% say women are treated fairly and equally to men 100% say the CEO supports gender diversity Ratings are based on anonymous reviews by Fairygodboss members. See all reviews