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 Software Engineer

Overview:
Mastercard’s Test and Learn team is seeking a Senior Software Engineer to play a pivotal role in our rapidly growing and successful organization. This position offers the opportunity to collaborate closely with seasoned engineers to tackle complex problems as a cohesive team. You'll engage with cutting-edge product opportunities, address modern business challenges, and work with intricate datasets that present uniquely demanding problems. You will contribute to the development of APIs and services that are integral to the Test & Learn platform, while maintaining a strong connection to our customers and the business value we deliver.
The Test & Learn team within Mastercard's Services organization aim to build industry-leading business experimentation software that brings sophisticated analytic techniques to business users around the world. We are rapidly expanding our product offerings and innovating on how we deliver Test & Learn solutions to our clients.
Engineers work in small, flexible teams. Every team member contributes to designing, building, and testing features. There are no rigid organizational structures, and each team uses processes and technologies that work best for team members and projects.
This is a hybrid position based in Arlington, VA, requiring three days per week onsite.

Role:
•\tBuild features used by some of the world's largest organizations to make multi-million-dollar decisions.
•\tLead and push the technical boundaries of powerful, scalable applications.
•\tWork closely with product managers and stakeholders to translate business needs into technical requirements and deliver high-impact features.
•\tIdentify non-functional requirements for features and design technical implementations.
•\tCollaborate with cross-functional teams to define software architecture and design patterns that meet business requirements and align with best practices.
•\tDesign and build APIs and infrastructure that serve a broad audience.
•\tProvide technical guidance and mentorship to junior engineers, fostering a collaborative and growth-oriented environment.
•\tEnsure code quality, maintainability, and scalability through code reviews and automated testing.
•\tAnalyze performance characteristics in technical systems and implement solutions to improve performance.
•\tParticipate in the full software development lifecycle, from ideation and design through implementation, testing, and deployment.
•\tProactively monitoring and adding instrumentation to ensure consistent performance.

All About You:
•\tExtensive experience as a full-stack Software Engineer or Software Developer with a strong emphasis in an agile production environment
•\tProficiency with advanced server-side object-oriented programming, microservice development, and relational database query optimization.
•\tStrong coding skills in .NET (or similar), REST APIs, and SQL Server.
•\tExperience analyzing performance characteristics in technical systems and implementing technical solutions to improve performance.
•\tExperience designing libraries, APIs, and/or other software infrastructure with a focus on performance, scalability, resiliency, and security.
•\tDrive to identify and solve the root problem, not just the assigned ticket.
•\tProficiency in software release best practices including database migrations, feature flags, backwards compatibility, API/library versioning, and code branching strategies.
•\tExperience in system architecture design and refactoring involving multiple services.
•\tProven track record mentoring junior engineers, teaching technical skills as well as providing feedback on code reviews.
•\tExcellent verbal and written communication skills, with the ability to articulate complex ideas clearly and concisely to both technical and non-technical stakeholders.
•\tFeeling of ownership over the quality and accuracy of work by all developers on the team, not just your own.
•\tStrong analytical and problem-solving abilities, with a focus on improving processes to accelerate delivery, foster innovation, reduce costs, and improve quality.
•\tAdvanced troubleshooting skills, leveraging tools and logs to identify and remediate issues identified during development and in production.
•\tBachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience.

This role is not eligible for Mastercard’s work authorization sponsorship. As such, candidates must be eligible to work in the United States, now as well as in the future, without employer sponsorship.

#LI-NF1

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 based on location, experience and other qualifications for the role and may be eligible for an annual bonus or commissions depending on the role. 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 new parent leave, up to 20 paid days bereavement leave), 10 annual paid sick days, 10 or more annual paid vacation days based on level, 5 personal days, 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, gender-inclusive benefits and many more.

Pay Ranges

Arlington, Virginia: $132,000 - $212,000 USD