Lead Software EngineerMastercard 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. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all. Role Overview This is a hands-on Lead Engineer role focused on building backend and full-stack capabilities for Mastercard's next-generation Decision Management Platform, the real-time system that helps score and approve billions of payment transactions. You will own technical areas end to end, write code, shape architecture, mentor engineers, and turn ambiguous goals into reliable services, APIs, workflow tools, and user-facing experiences.Key ResponsibilitiesOwn meaningful backend and full-stack capabilities from problem definition through design, implementation, testing, deployment, and production support.Design and build scalable services, APIs, workflow tooling, frontend experiences, and integrations.Set technical direction, make pragmatic architecture decisions, and align engineers around maintainable solutions.Use design reviews, code reviews, and hands-on coaching to raise engineering quality and reduce complexity.Write code, build prototypes, and use AI coding tools to improve speed, quality, and team effectiveness.Work closely with product, engineering, and senior stakeholders to turn ambiguous goals into working software and measurable outcomes.What We're Looking ForYou lead through delivery. You have shipped meaningful backend, full-stack, or product-facing capabilities in complex production systems.You think end to end. You connect user experience, APIs, backend design, data flows, operations, and business outcomes.You influence by doing the work. You guide technical direction through judgment, clear communication, and hands-on credibility.You care about quality. Testing, observability, security, clean interfaces, and maintainability are part of how you build.You are adaptable. You are comfortable with ambiguity, changing priorities, and small, fast-moving teams.Relevant ExperienceYou do not need experience in every area, but should bring strong hands-on depth in several of the following:Backend services, API design, service integration, and domain modeling.Full-stack applications, workflow tooling, dashboards, authoring tools, or operational interfaces.High-throughput, low-latency, event-driven, or distributed systems.Decisioning, rules, data, feature platforms, or real-time transaction processing.AI/ML systems, low-latency inference, or LLM-enabled product experiences.AI-assisted development and agentic harnessesRequirementsStrong hands-on software engineering experience building backend services, APIs, full-stack applications, or complex production systems.Experience owning technical areas end to end, including design, implementation, testing, deployment, and production support.Strong fundamentals in software design, architecture, API design, data modeling, testing, code review, secure coding, performance, and troubleshooting.Experience mentoring engineers and influencing technical direction through design reviews, code reviews, and clear communication.Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent experience.Corporate Security ResponsibilityAll 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, andComplete 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.
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