Lead Software Engineer

Mastercard•O'fallon, MO

5d•$140,000 - $231,000•Onsite

About The Position

The Mastercard Authentication Program owns how consumer authentication works for both in-store and e-commerce transactional use cases. The primary purpose of this role is to develop and deliver best-of-breed authentication products for e-commerce transactional use cases that will drive uptake and penetration for the products and revenue for Mastercard. The authentication Onboarding and configuration platform. If you want a challenging project that is changing the way people make payments, this is the role for you!

Requirements

Hands-on experience designing software solutions and delivering full-stack applications using modern technologies for large-scale enterprise systems.
Strong experience building Java microservices and developing user-interface components using frameworks such as React or Angular.
Experience deploying applications through CI/CD pipelines, Docker containers, and Kubernetes.
Working knowledge of application security principles, including encryption and decryption, PKI, hashing, JWT, OAuth, OIDC, and zero trust.
Experience designing systems with non-functional requirements in mind, including performance, scalability, availability, extensibility, maintainability, and supportability.
Experience designing applications for operational readiness, including observability, monitoring, reliability, and post-deployment support.
Ability to troubleshoot complex distributed systems, identify root causes, and drive issues through resolution.
Experience applying code-review best practices and maintaining high standards of engineering quality.
Strong understanding of data structures, algorithms, and performance-optimization techniques.
Experience designing and executing automated testing strategies, including unit, functional, integration, and system testing.
Ability to coach teams on full-stack development and end-to-end service ownership.
Skilled in leading trade-off discussions across competing priorities, including security, regulatory requirements, delivery timelines, and technical debt.
Strong communication skills with the ability to clearly articulate complex architectural decisions to technical and business stakeholders.
Experience leading advanced operational and failure-testing practices, such as chaos engineering and resilience testing.
Experience with Agile and modern software development lifecycle practices, including Scrum, Kanban, CI/CD, DevOps, and Quality Engineering.
Ability to operate effectively under pressure while managing complex initiatives and competing priorities.
Adaptability in fast-changing environments with evolving technologies.

Responsibilities

Design and develop secure, reliable, maintainable, and scalable solutions for globally distributed, customer-facing products.
Support development teams and collaborate with stakeholders while promoting agile development practices.
Create a culture of technical excellence, engineering quality, and innovation.
Research, develop, and evaluate technical solution alternatives for business needs using current and emerging technologies and frameworks.
Drive advanced testing strategies, including automation, chaos engineering, and resilience testing, to validate system behavior under failure conditions.
Remain hands-on by contributing to code, including building services and APIs; writing unit, functional, integration, and acceptance tests; and developing architecture fitness functions.
Partner with business and product owners to architect and deliver services that support new products and bundles.
Participate in team agile processes, including prioritization, trade-off discussions, and delivery planning.
Drive architectural design across dependent services, service interactions, and policies.
Design solutions for operational readiness, observability, reliability, and effective production support.
Lead the diagnosis and resolution of complex system issues by applying structured troubleshooting and root-cause analysis practices.
Take ownership of improving the customer experience across a portfolio of services and applications.
Lead and contribute to initiatives that improve software engineering craftsmanship, including mentoring engineers at all levels.
Consult across teams and organizational boundaries to identify synergies and opportunities for reuse.
Conduct technical interviews and help raise the engineering talent bar.
Conduct and lead code reviews, ensuring adherence to coding standards, performance optimization, security best practices, and maintainability.
Establish and enforce code-quality governance practices, including static analysis, peer reviews, and secure coding guidelines.
Mentor engineers through code reviews by promoting clean-code principles, reusable design, and continuous improvement.
Drive consistency in development standards across teams and ensure high-quality, production-ready deliverables.
Apply strong knowledge of data structures and algorithms to design efficient, scalable, and high-performance systems.
Optimize application performance through effective data modeling, memory management, testing, and monitoring techniques.
Make informed design trade-offs based on computational complexity, scalability, security, maintainability, and system constraints.
Guide teams in applying foundational computer science principles to solve complex engineering problems.

Benefits

insurance (including medical, prescription drug, dental, vision, disability, life insurance)
flexible spending account and health savings account
16 weeks of new parent leave
up to 20 days of bereavement leave
80 hours of Paid Sick and Safe Time
25 days of vacation time
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