Lead Software Engineer

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
Lead Software Engineer
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.
Customer Data Management is a team of high performing, co-located individuals representing different functional roles with all the necessary skills to create enterprise capabilities for Customer Data.
Responsible for the analysis, design, development and delivery of software solutions
Develops requirements for new applications and customization's, adhering to standards, processes and best practices
We are looking for a highly skilled and experienced Lead Software Engineer with strong expertise in Java, Spring Boot, and Microservices architecture.
The ideal candidate will also have hands-on experience with Kafka, PostgreSQL, MongoDB, and front-end development using Angular, HTML, and CSS.
You will be responsible for designing, developing, and maintaining enterprise-grade applications in a dynamic and agile environment.
Key Responsibilities:
• Design, develop, and maintain Java Spring Boot microservices that are scalable, resilient, and performant
• Integrate services with PostgreSQL and MongoDB for structured and unstructured data storage
• Develop and maintain Kafka-based event-driven systems for asynchronous processing and data pipelines
• Build responsive and dynamic Angular components for user interfaces using HTML, CSS, and TypeScript
• Collaborate with DevOps teams for containerization and deployment (Docker/Kubernetes experience is a plus)
• Participate in code reviews, design discussions, and technical decision-making
• Write unit tests, integration tests, and participate in CI/CD processes
• Mentor junior team members and contribute to continuous improvement of engineering practices
Required Skills:
Backend:
• Years of experience with Java (8/11/17) and Spring Boot
• Strong knowledge of RESTful APIs, Spring Data JPA, and Spring Security
• Experience with microservices architecture and distributed systems
Databases:
• Proficient with PostgreSQL (query optimization, schema design)
• Experience with MongoDB (documents, collections, indexes)
Messaging:
• Solid understanding and hands-on experience with Apache Kafka (producers, consumers, topics, partitions)
Frontend:
• Proficient in Angular (14+), HTML5, CSS3, and TypeScript
Preferred Qualifications:
• Experience with Docker, Kubernetes, Cloud
• Exposure to CI/CD tools such as Jenkins or GitLab CI
• Understanding of Agile methodologies (Scrum, Kanban)
• Knowledge of OAuth2 / JWT and secure API development
• Familiarity with ELK stack, Prometheus/Grafana is a plus
Education:
• Bachelor's or master's degree in computer science, Engineering, or related field
Soft Skills:
• Strong problem-solving and analytical skills
• Excellent communication and collaboration abilities
• Self-motivated, able to work independently and in a team
• Ownership mindset with attention to quality and detail
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.