Senior Full Stack Software Engineer
Company: Mastercard
Location: New York City, New York (150 5th Avenue), United States of America
Salary: $138k - $221k per year
Type: Full-time
Posted: 2026-08-12
About this role
- The Mastercard Foundry Research & Development team identifies, evaluates, and develops emerging technologies that shape the future of commerce
- This role combines hands-on software engineering, technical leadership, technology research, and rapid prototyping
- The Senior Software Engineer will design and build full-stack applications, lead technical initiatives, mentor engineers, and develop architectural solutions that support new commerce experiences from concept through market validation
- They will collaborate across engineering, product, and innovation teams to transform ideas into scalable solutions and technology platforms
- Develop full-stack applications and prototypes using modern technologies including React, TypeScript/JavaScript, Node.js, Java, Spring Boot and Python
- Design, build and maintain scalable frontend applications, backend services and APIs that support new product concepts and innovation initiatives
- Lead technical initiatives from ideation through implementation, providing architectural guidance and engineering leadership across projects
- Create architecture diagrams, technical designs, and solution proposals to communicate complex concepts to engineering teams and leadership stakeholders
- Present technical concepts, prototype outcomes and architectural recommendations to senior engineering, product and business leaders
- Mentor junior engineers through technical coaching, code reviews, design reviews and engineering best practices
- Research emerging technologies and evaluate their potential impact on commerce, payments, and digital experiences
- Develop proof-of-concept solutions that validate new technologies, business opportunities, and product concepts
- Collaborate with product managers, designers, engineers, researchers, and external partners to bring ideas from concept through market validation
- Participate in innovation programs and hackathons to create, build, and pitch new product ideas- Strong frontend development expert...