Web Application Firewall Waf Engineer Jobs in Missouri

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 Platform Architect
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview
The Infrastructure Engineering team is looking for a Senior Platform Architect to lead the design and evolution of secure, scalable, and resilient enterprise infrastructure platforms that power Mastercard's critical business services. The ideal candidate is a strategic technology leader with deep expertise in enterprise architecture, infrastructure engineering, and cloud technologies. They are highly collaborative, intellectually curious, and passionate about solving complex technical challenges while driving innovation, operational excellence, and platform modernization. This individual excels at partnering across engineering, security, and product organizations to deliver scalable solutions that enable business growth and provide exceptional customer experiences.
Role
• Lead the architecture, design, and delivery of highly available, scalable, and secure enterprise infrastructure solutions across on-premises, hybrid, and cloud environments.
• Partner with Engineering, Network, Security, Cloud, Database, Middleware, Product, and Program Management teams to develop infrastructure solutions that support business and technology strategies.
• Drive infrastructure solution delivery from initial business engagement through architecture reviews, financial approvals, procurement, implementation, operational readiness, and production deployment.
• Design resilient networking, application delivery, and security architectures utilizing enterprise technologies including load balancing, web application firewalls, API gateways, and distributed infrastructure platforms.
• Lead infrastructure modernization initiatives focused on automation, Infrastructure-as-Code (IaC), platform standardization, performance optimization, resiliency, and operational excellence.
• Develop enterprise architecture standards, technical roadmaps, and infrastructure documentation while mentoring engineering teams and promoting engineering best practices.
• Ensure infrastructure solutions meet stringent requirements for security, compliance, availability, scalability, disaster recovery, and performance across mission-critical platforms.
All About You
Essential Knowledge, Skills & Experience
• Deep expertise in enterprise infrastructure architecture across data center, hybrid cloud, and distributed computing environments.
• Advanced knowledge of enterprise networking, application delivery, and infrastructure security, including Zero Trust principles and modern network architectures.
• Experience designing and supporting enterprise platforms utilizing VMware, cloud technologies (AWS, Azure, GCP), load balancing, web application firewalls, API gateways, and distributed infrastructure.
• Strong expertise in infrastructure automation, Infrastructure-as-Code (Terraform, Ansible), CI/CD integration, and configuration management using tools such as Git, Bitbucket, and Jenkins.
• Demonstrated ability to architect and deliver highly available, resilient, and secure infrastructure solutions while collaborating effectively across cross-functional engineering and business teams.
• Excellent communication and presentation skills with the ability to influence technical and executive stakeholders.
Desirable or Additional Capabilities
• Experience with distributed data platforms such as VMware GemFire, Apache Geode, or similar in-memory data grid technologies.
• Expertise in infrastructure performance engineering, including capacity planning, scalability testing, and performance optimization.
• Advanced experience creating technical architecture documentation and executive presentations using Microsoft Visio.
• Experience supporting mission-critical financial services platforms with stringent availability, security, resiliency, and regulatory compliance requirements.
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. 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
O'Fallon, Missouri: $96,000 - $163,000 USD