{"schemaVersion":"jobsearcher.job.v1","id":"94bdb7ce7bacd554e81be019","url":"https://jobsearcher.com/jobs/94bdb7ce7bacd554e81be019","canonicalUrl":"https://jobsearcher.com/jobs/94bdb7ce7bacd554e81be019","title":"Lead Software Development Engineer","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.\r\nTitle and Summary Lead Software Development Engineer\r\nOverview 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. The Cyber & Intelligence (C&I) organization is responsible for Mastercard's security and risk-related product development efforts, delivering innovative solutions focused on cybersecurity, authentication, fraud prevention, risk mitigation, and dispute resolution across the global payments ecosystem. We are seeking a highly skilled Lead Software Engineer to drive architecture, design, development, modernization, and operational excellence for mission-critical platforms. This role combines deep technical expertise, hands‑on software engineering, architectural leadership, and mentoring to deliver secure, scalable, resilient, and high‑performing solutions.\r\nRoleDrive the architectural design of software solutions, including dependent services, service interactions, integration patterns, technology standards, and governance practices.\r\nDesign and build scalable, resilient, fault‑tolerant platforms that meet performance, security, availability, and maintainability requirements.\r\nLead technical decision‑making and architecture reviews across multiple systems and engineering teams.\r\nAct as a hands‑on developer and architect, writing high‑quality, secure, modular, maintainable, and testable code.\r\nCreate, evaluate, test, and deploy innovative technologies that optimize existing products and enable new business opportunities.\r\nDevelop and maintain technology roadmaps focused on platform modernization, performance improvements, reliability, and cost optimization.\r\nContribute across the full software development lifecycle including requirements analysis, design, development, documentation, testing, deployment, and ongoing support.\r\nDesign and implement comprehensive testing strategies including unit, functional, integration, regression, and automated testing to ensure solution quality and reliability.\r\nChampion Test‑Driven Development (TDD) and Behavior‑Driven Development (BDD) practices across engineering teams.\r\nLead code reviews and enforce engineering standards to ensure code quality, maintainability, security, and consistency with organizational best practices.\r\nEmbed secure software development practices throughout the software development lifecycle, including secure design reviews, threat modeling, vulnerability remediation, and adherence to secure coding standards.\r\nDrive performance engineering initiatives through capacity planning, performance testing, system optimization, and scalability improvements.\r\nOwn the operational characteristics of delivered solutions, including observability, monitoring, logging, alerting, reliability, maintainability, and recoverability.\r\nEnsure systems are designed for operational excellence by implementing robust monitoring, diagnostics, and support capabilities.\r\nLead root cause analysis and resolution of complex production issues, driving continuous improvements to platform stability, resiliency, and service availability.\r\nGuide the modernization of legacy platforms using microservices architectures, cloud‑native engineering practices, anti‑corruption layers, and strangler‑pattern approaches.\r\nCollaborate effectively with global engineering, product, operations, and security teams.\r\nMentor engineers on software architecture, design patterns, engineering practices, coding standards, and emerging technologies.\r\nServe as a technical leader and ambassador by presenting at internal forums, industry conferences, and engineering communities.\r\nAll About YouBachelor's degree in Computer Science, Software Engineering, or a related technical field.\r\nAdvanced expertise in software engineering, distributed systems, object‑oriented design, algorithms, and data structures.\r\nStrong understanding of software architecture principles, design patterns, domain‑driven design, and distributed system design.\r\nProficiency in one or more modern programming languages such as Java, Scala, Node.js, TypeScript, Angular, or similar technologies.\r\nDemonstrated experience designing and developing enterprise‑scale applications and services.\r\nStrong experience with cloud platforms, including IaaS, PaaS, serverless technologies, containerization, and cloud‑native architectures.\r\nExperience with microservices, APIs, event‑driven architectures, CI/CD pipelines, DevOps practices, and Infrastructure as Code.\r\nAdvanced knowledge of secure coding practices, application security concepts, and software risk mitigation techniques.\r\nExperience designing and implementing automated testing frameworks and integration testing strategies.\r\nStrong understanding of observability, monitoring, logging, performance tuning, and operational readiness.\r\nProven ability to troubleshoot and resolve complex technical issues across application, infrastructure, and integration layers.\r\nExperience designing highly available and resilient systems that can withstand infrastructure and service failures.\r\nStrong analytical, communication, collaboration, and problem‑solving skills.\r\nExperience working within Agile development environments.\r\nDemonstrated ability to mentor and influence engineers through technical leadership and coaching.\r\nPassion for continuous learning, innovation, and engineering excellence.\r\nMastercard 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.\r\nCorporate 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.\r\nIn 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.\r\nPay RangesO'Fallon, Missouri: $140,000 - $231,000 USD\r\nMastercard 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.\r\nMastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on‑site fitness facilities in some locations.\r\nTHIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 01/12/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.#J-18808-Ljbffr","company":"Mastercard","rawCompany":"mastercard","city":"O'Fallon","state":"IL","isRemote":false,"isActive":true,"createdAt":"2026-11-04T02:30:34.163Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Lead Software Development Engineer","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.\r\nTitle and Summary Lead Software Development Engineer\r\nOverview 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. The Cyber & Intelligence (C&I) organization is responsible for Mastercard's security and risk-related product development efforts, delivering innovative solutions focused on cybersecurity, authentication, fraud prevention, risk mitigation, and dispute resolution across the global payments ecosystem. We are seeking a highly skilled Lead Software Engineer to drive architecture, design, development, modernization, and operational excellence for mission-critical platforms. This role combines deep technical expertise, hands‑on software engineering, architectural leadership, and mentoring to deliver secure, scalable, resilient, and high‑performing solutions.\r\nRoleDrive the architectural design of software solutions, including dependent services, service interactions, integration patterns, technology standards, and governance practices.\r\nDesign and build scalable, resilient, fault‑tolerant platforms that meet performance, security, availability, and maintainability requirements.\r\nLead technical decision‑making and architecture reviews across multiple systems and engineering teams.\r\nAct as a hands‑on developer and architect, writing high‑quality, secure, modular, maintainable, and testable code.\r\nCreate, evaluate, test, and deploy innovative technologies that optimize existing products and enable new business opportunities.\r\nDevelop and maintain technology roadmaps focused on platform modernization, performance improvements, reliability, and cost optimization.\r\nContribute across the full software development lifecycle including requirements analysis, design, development, documentation, testing, deployment, and ongoing support.\r\nDesign and implement comprehensive testing strategies including unit, functional, integration, regression, and automated testing to ensure solution quality and reliability.\r\nChampion Test‑Driven Development (TDD) and Behavior‑Driven Development (BDD) practices across engineering teams.\r\nLead code reviews and enforce engineering standards to ensure code quality, maintainability, security, and consistency with organizational best practices.\r\nEmbed secure software development practices throughout the software development lifecycle, including secure design reviews, threat modeling, vulnerability remediation, and adherence to secure coding standards.\r\nDrive performance engineering initiatives through capacity planning, performance testing, system optimization, and scalability improvements.\r\nOwn the operational characteristics of delivered solutions, including observability, monitoring, logging, alerting, reliability, maintainability, and recoverability.\r\nEnsure systems are designed for operational excellence by implementing robust monitoring, diagnostics, and support capabilities.\r\nLead root cause analysis and resolution of complex production issues, driving continuous improvements to platform stability, resiliency, and service availability.\r\nGuide the modernization of legacy platforms using microservices architectures, cloud‑native engineering practices, anti‑corruption layers, and strangler‑pattern approaches.\r\nCollaborate effectively with global engineering, product, operations, and security teams.\r\nMentor engineers on software architecture, design patterns, engineering practices, coding standards, and emerging technologies.\r\nServe as a technical leader and ambassador by presenting at internal forums, industry conferences, and engineering communities.\r\nAll About YouBachelor's degree in Computer Science, Software Engineering, or a related technical field.\r\nAdvanced expertise in software engineering, distributed systems, object‑oriented design, algorithms, and data structures.\r\nStrong understanding of software architecture principles, design patterns, domain‑driven design, and distributed system design.\r\nProficiency in one or more modern programming languages such as Java, Scala, Node.js, TypeScript, Angular, or similar technologies.\r\nDemonstrated experience designing and developing enterprise‑scale applications and services.\r\nStrong experience with cloud platforms, including IaaS, PaaS, serverless technologies, containerization, and cloud‑native architectures.\r\nExperience with microservices, APIs, event‑driven architectures, CI/CD pipelines, DevOps practices, and Infrastructure as Code.\r\nAdvanced knowledge of secure coding practices, application security concepts, and software risk mitigation techniques.\r\nExperience designing and implementing automated testing frameworks and integration testing strategies.\r\nStrong understanding of observability, monitoring, logging, performance tuning, and operational readiness.\r\nProven ability to troubleshoot and resolve complex technical issues across application, infrastructure, and integration layers.\r\nExperience designing highly available and resilient systems that can withstand infrastructure and service failures.\r\nStrong analytical, communication, collaboration, and problem‑solving skills.\r\nExperience working within Agile development environments.\r\nDemonstrated ability to mentor and influence engineers through technical leadership and coaching.\r\nPassion for continuous learning, innovation, and engineering excellence.\r\nMastercard 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.\r\nCorporate 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.\r\nIn 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.\r\nPay RangesO'Fallon, Missouri: $140,000 - $231,000 USD\r\nMastercard 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.\r\nMastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on‑site fitness facilities in some locations.\r\nTHIS POSTING RELECTS ONE OR MORE CURRENT VACANCIES ON OUR TEAM, AND MASTERCARD INTENDS TO FILL THIS POSITION BY 01/12/2027. If the fill date has passed, Mastercard intends to fill this position as soon as possible.#J-18808-Ljbffr","datePosted":"2026-11-04T02:30:34.163Z","dateModified":"2026-11-04T02:30:34.163Z","hiringOrganization":{"@type":"Organization","name":"Mastercard","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"O'Fallon","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"94bdb7ce7bacd554e81be019"},"url":"https://jobsearcher.com/jobs/94bdb7ce7bacd554e81be019"}}