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 Sr. Principal Software Engineer Role Overview As a Sr. Principal Engineer in the AI & Data Platform Engineering organization, you will provide technology leadership and strategic influence across enterprise-scale initiatives for the next generation Decision Management Platform. With deep architectural expertise and ability to collaborate across the organization, you will have the ability to drive innovation and engineering excellence. Key areas of focus include leveraging disruptive technologies in the real time AI inferencing and decisioning domain to improve product effectiveness, increase business agility, increase technical resilience and scalability, and lower cost of ownership. You will work closely with the technology executive, senior leaders and engineers to play an important pivotal role in shaping the overall AI & DPE technology strategy for the wider AI & DPE team. Key Responsibilities: Enterprise Architecture & Technical Leadership• Lead architectural design for complex, enterprise-wide initiatives involving multiple services, programs, and high-scale decisioning workloads.• Define service interactions, data flows, dependency models, and architecture policies that ensure scalability, resiliency, and security.• Partner with business and product leaders to architect new services that enable innovative Mastercard products and decision capabilities. Customer Experience & Platform Strategy• Improve the end-to-end experience of internal and external customers across services and applications.• Simplify and optimize architecture strategies to balance cost efficiency, performance, and functional requirements.• Apply expert-level technical judgment to guide trade-offs in large-scale design and implementation. Thought Leadership & Influence• Drive engineering best practices, software craftsmanship, and architectural rigor across the organization.• Represent the engineering organization through technical presentations, publications, and internal knowledge-sharing sessions.• Participate in Principal-level architecture reviews and address complex enterprise-wide technical challenges. Collaboration & Knowledge Sharing• Work across organizational boundaries to identify integration opportunities, reduce redundancy, and drive platform cohesion.• Mentor engineers and rising architects to elevate technical expertise and leadership within the organization.• Promote knowledge sharing across guilds, programs, and engineering communities. Talent & Culture• Conduct deep technical interviews and help identify candidates who raise the engineering bar.• Champion behaviors that support a culture of excellence, inclusivity, and accountability. Qualifications:• Extensive hands-on software engineering experience building and architecting distributed systems or real-time processing platforms.• Deep architectural expertise in large-scale, high-throughput systems, including end-to-end service design, data flows, and dependency modeling.• Strong experience with cloud and data platform technologies, real-time decisioning, and enterprise-grade system reliability and security.• Prior work integrating AI/ML or analytic models into production systems, especially for real-time or near real-time workloads.• Demonstrated ability to lead complex technical designs, influence cross-functional engineering teams, and guide platform-wide architectural decisions.• Strong problem-solving, communication, and technical leadership skills, with experience mentoring senior engineers. Preferred Qualifications• Experience with high-volume transactional systems, business rules management platforms, or real-time streaming pipelines.• Background working with large in-memory data grids, rule engines, or decisioning engines.• Experience contributing to organizational standards, technical publications, or architecture communities of practice.• Prior work in environments involving regulated data, compliance constraints, or high-availability requirements. #LI-TE1 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 New York City, New York: $254,000 - $407,000 USD Austin, Texas: $212,000 - $339,000 USD Chicago, Illinois: $212,000 - $339,000 USD O'Fallon, Missouri: $212,000 - $339,000 USD Remote - Illinois: $212,000 - $339,000 USD Remote - Washington: $212,000 - $339,000 USD San Francisco, California: $254,000 - $407,000 USD Job Posting Window Posting windows may change based on the volume of applications received and business necessity. Candidates are encouraged to apply expeditiously.

• Design, build, and maintain customer-facing features supporting asset tracking and cross-product field workflows • Implement UI using UIKit and SwiftUI, contributing to scalable, maintainable patterns • Contribute to and evolve our unidirectional architecture (Store/Actions/State or Redux-like patterns) • Improve app performance, reliability, and observability • Write high-quality, testable code and expand automated test coverage • Collaborate closely with Android, backend, product, design, and QA partners • Mentor engineers and elevate the team’s technical standards through thoughtful code reviews

• Produce software that delivers requested functionality • Analyze, design, implement, and maintain moderately complex systems programming • Collaborate with customers to obtain and analyze project specifications • Ensure outstanding end-user support is provided

About GitHub GitHub is the world’s leading platform for agentic software development — powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot. Locations In this role you can work from Remote, United States Overview As a software engineer at GitHub, you will enhance the collaboration experience at GitHub by working closely with a community of engineers and designers with a distributed, diverse and passionate team delivering the services that millions of developers depend on. In this role you will design, prototype, implement, ship and support highly performant and globally scalable code search technology with your team. We are looking for creative problem solvers and diverse thinkers, people who care about culture as well as customers and features. We believe that how we do things is as important as what we do. Big vision, a common purpose, passion for quality, curiosity, dedication, and investment in fun and collaboration are what lead to great results. Great products reflect the teams that build them. More of the world’s development data lives on GitHub than anywhere else. Helping developers navigate and understand that data is a core part of GitHub’s mission, and an area with significant potential we have only begun to realize. We have high aspirations for how we can help developers understand and navigate code, and for making collaboration more seamless. The foundation for these efforts is our purpose-built code search engine which powers lexical and semantic code search in GitHub’s core search experience as well as GitHub’s Copilot products. Responsibilities - Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services - Collaborate with cross-functional teams to define and implement innovative solutions - Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others - Own and advocate for the health and quality of the systems that the team builds, including participating in on-call and first responder rotations - Write architecture briefs and proposals, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our systems - Design and implement APIs to facilitate seamless integration between software components - Utilize CI/CD tools to set up automated pipelines for continuous integration and delivery - Become intimately familiar with the systems you build and take pride in writing maintainable code Qualifications Required Qualifications: - 6+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python - OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python - OR Bachelor's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 4+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python - OR Master's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python - OR Doctorate in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field - OR equivalent experience - 6+ years experience designing, building, scaling and maintaining large-scale distributed systems (large scale = user base of 100 million+) Preferred Qualifications: - 2+ years experience in systems programming, search index internals and information retrieval - 4+ years experience designing and implementing data structures and algorithms - Experience effectively contributing to technical strategy and roadmaps with strong customer focus and data-driven approach - Passionate about fostering good engineering practices and processes with solid understanding of testing principles and high-quality software - Understanding of production system monitoring and observability with skills across network, application, caching, queuing, load-balancing, storage and distributed services layers Compensation Range The base salary range for this job is USD $124,000.00 - USD $329,200.00 /Yr. These pay ranges are intended to cover roles based across the United States. An individual's base pay depends on various factors including geographical location and review of experience, knowledge, skills, abilities of the applicant. At GitHub certain roles are eligible for benefits and additional rewards, including annual bonus and stock. These rewards are allocated based on individual impact in role. In addition, certain roles also have the opportunity to earn sales incentives based on revenue or utilization, depending on the terms of the plan and the employee's role. GitHub values - Customer-obsessed - Ship to learn - Growth mindset - Own the outcome - Better together - Diverse and inclusive Manager fundamentals - Model - Coach - Care Leadership principles - Create clarity - Generate energy - Deliver success Who We Are GitHub is the world’s leading AI-powered developer platform with 150 million developers and counting. We’re also home to the biggest open-source community on earth (and 99% of the world’s software has open-source code in its DNA). Many of the apps and programs you use every day are built on GitHub. Our teams are dreamers, doers, and pioneers, leading the way in AI, driving humanitarian efforts around the globe, and even sending open source to Mars (and beyond!). At GitHub, our goal is to create the space you need to do your best work. We’re remote-first and offer competitive pay, generous learning and growth opportunities, and excellent benefits to support you, wherever you are—because we know that people flourish when they can work on their own terms. Join us, and let’s change the world, together. EEO Statement GitHub is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people of all walks of life. We don't discriminate against employees or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, citizenship, disability, pregnancy status, veteran status, or any other differences. Also, if you have a disability, please let us know if there's any way we can make the interview process better for you; we're happy to accommodate!