Principal Engineer (Architecture)

Mastercard; O’Fallon (MO); On-site; USD 170,000 - 281,000; Full time

Job summary

Mastercard is seeking a Principal Architect to lead architecture and design for MDES services in a highly scalable payment application. You will mentor engineers, drive non-functional requirements, and partner with product and engineering teams to shape high-level solutions.

The role focuses on microservices, cloud deployments, security concepts, and modern design practices for enterprise-grade systems within the payments space.

Qualifications

• Senior-level technical leadership experience
• Strong hands-on with Java/Spring stack
• Experience building scalable enterprise payments systems

Responsibilities

• Lead platform/solution architecture design addressing non-functional requirements
• Collaborate with Product Management and Engineering to draft high level design
• Develop critical components and proof-of-concepts for new use cases
• Conduct code reviews and mentor team members
• Write and review design documentation
• Manage SCM operations: branching, merging, tagging
• Explore upcoming technologies to improve solutions
• Ensure adherence to organizational processes and protect IP

Skills

Lead scrum team

Core Java

Spring Boot

Spring MVC

Spring IOC

Spring AOP

Security concepts

SQL

Oracle

PostgreSQL

NoSQL Cassandra

JSON Web Services

SOAP

Kafka

Zookeeper

Microservices

Cloud platforms

IntelliJ

Eclipse

Maven

Git

Agile

Design Patterns

Security protocols

Tools

IntelliJ

Eclipse

MyEclipse

MS Visio

PlantUML

Job description

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.

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 Engineer (Architecture)

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 MDES team is looking for a Technical Architect (Principal, Software Development Engineer) who can lead Architecture and Design of MDES Services and define regional distribution / localization design for MDES. The ideal candidate is the one who is passionate about leading software development, driving engineering practices & technically mentoring team members for a highly scalable, highly available enterprise grade payment application.

Role

• Lead platform / solution architecture design addressing all non-functional requirements
• Work closely with Product Management and Engineering Team to come up high level design
• Develop critical components whenever required and create proof of concepts for new/unknown use cases/ideas
• Conduct code reviews, is responsible for overall code quality, Coach and mentor less experienced team members
• Write and review Design Documentation whenever required
• Do SCM Operations – branching, merging, tagging, conflict resolution
• Study upcoming technologies and identify how they can be used to improve existing solution
• Comply with organizations processes. Policies and protects organization’s Intellectual property. Also, participate in organization level process improvement and knowledge sharing

All About You

Essential knowledge, skills & attributes

• Experience of technically leading at least one scrum team in terms of assisting Product Manager in refining the features and stories, doing low level design, doing code review, troubleshooting team’s issues, guiding & mentoring team members
• Hands on experience and expert on working with core Java, Spring Boot, Spring (MVC, IOC, AOP, Security), SQL, RDBMS (Oracle and PostGRES), NoSQL (Cassandra), Web-services (JSON and SOAP), Kafka, Zookeeper
• Hands on experience of developing microservice application & deploying them on any one of the public cloud like Google, AWS, Azure
• Hands on experience of using Intellij/Eclipse/My Eclipse IDE, UML tools (MS Visio, PlantUML)
• Hands on experience of writing Junit test cases, working with Maven/Ant/Gradle, GIT
• Experience of working with Agile methodologies.
• Personal attributes are strong logical and Analytical Skills, design skills, should be able to articulate and present his/her thoughts very clearly and precisely in English (written and verbal)
• Knowledge of Design Patterns
• Knowledge of Security concepts (E.g. authentication, authorization, confidentiality etc.) and protocols, their usage in enterprise application

Additional/Desirable Capabilities

• Experience of working in Payments application Domain
• Hands on experience of working with tools like Mockito, JBehave, Jenkins, Bamboo, Confluence, Rally

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 [e-mail] 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

• 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 RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 01/03/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.

Pay Ranges

O'Fallon, Missouri: $170,000 - $281,000 USD