Senior Platform Engineer F/T

Posted:
7/2/2026, 5:30:37 PM

Location(s):
Missouri, United States ⋅ O’Fallon, Missouri, United States

Experience Level(s):
Senior

Field(s):
IT & Security ⋅ Software Engineering

Workplace Type:
On-site

Pay:
$96k–$163k/yr

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 Engineer F/T

Overview
Support assigned projects, which include responsibility for planning; time and cost control; resource utilization and implementation.
Role.
• Provide 3rd level support for critical and time-sensitive incident determination and resolution covering thousands of devices in the Mastercard Data Center locations inclusive of logical connectivity, routing, application issues, as well as physical hardware failures.
• Engineer and implement many simple and complex change requests daily.
• Validate change request in compliance with security standards and solidify the demarcation between test and production.
• Manage change requests to maintain network availability of 99.999%.
• Resolve network communications and operations problems impacting customer or backbone access and performance globally.
• Design, allocate, and implement complex physical, logical, and load balanced IP addressing schemas.
• Implement, configure, & troubleshoot highly complex network connectivity solutions for internal and external customers.

About You
• Position requires a Bachelor’s degree or foreign equivalent in Information Systems, Information Technology, Computer Science or Engineering, Electrical and Electronic Engineering, or related and seven (7) years of progressively responsible experience in job offered or as a Network Engineer, Systems Architect, IT Architect, IT Engineer, Systems Engineer, Solutions Architect, or related technical position.
• Qualifying experience must include at least three (3) years with each of the following: Networking concepts (LAN/WAN, wireless and Security technologies); TCP/IP protocol communications; Cisco’s product portfolio; Project Management methodology; Troubleshooting application and carrier issues; Analyze existing systems. Evaluate factors to determine system specifications. Plans design of subsystems and integration of total system; Liaising with business owners and/or stakeholders to determine growth plans.
• Employer will accept any suitable combination of education, training or experience.
• Telecommuting and/or working from home may be permissible pursuant to company policies.
• To apply, please click the “Apply for job” link above, or send resume to recruiter Shashikant Jagdale, [email protected], 2200 Mastercard Blvd, O’Fallon, MO 63368. Ref MC65-2026.

Incentives offered through MasterCard’s Employee Referral Program Apply to this position. For more information, please visit our Employee Referral Site or see employee handbook.

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.

Pay Ranges

O'Fallon, Missouri: $96,000 - $163,000 USD

Mastercard

Website: https://www.mastercard.com/

Headquarter Location: Purchase, New York, United States

Employee Count: 10001+

Year Founded: 1966

IPO Status: Public

Industries: Finance ⋅ Financial Services ⋅ Information Technology ⋅ Payments

Visa Sponsorship: Sponsors work visas