Senior Full‐Stack Engineer - React, Typescript, Node & Java
Role Overview
As a Senior Full‐Stack Engineer, you will design, build, and deliver cutting‐edge Open Finance solutions that power Mastercard’s next generation of payment and data products.
You’ll work across the entire technology stack—from highly available backend services built in Java to engaging front‐end experiences using React—partnering closely with designers, product managers, and architects to bring ideas to life.
You will contribute to Connect, the frontend component of our Open Banking Payment and Data applications, helping to drive innovative solutions in pursuit of a world beyond cash.
This role requires strong frontend engineering expertise (React & Typescript), robust backend development skills (Node & Java), and the ability to collaborate across disciplines to deliver secure, scalable, and accessible software aligned to Mastercard’s highest standards.
Key Skills for This Role
Full Job Posting
Responsibilities
- Plan, design, and develop full‐stack solutions that align with Mastercard’s engineering standards, processes, and best practices.
- Collaborate with UI/UX designers to implement responsive, accessible user interfaces using React.
- Ensure that front‐end applications meet WCAG accessibility guidelines, deliver exceptional performance, and are optimised for multiple devices.
- Build and maintain scalable backend services and APIs within Mastercard’s Open Finance ecosystem using Java.
- Ensure high code quality through unit/integration testing, peer reviews, and CI/CD pipelines.
- Contribute across the full software development life cycle—from requirements gathering to release and ongoing support.
- Troubleshoot, debug, and resolve production issues, ensuring service resilience and performance.
- Mentor and support junior engineers, fostering knowledge sharing and continuous improvement.
- Partner with product owners and stakeholders to prioritise features, communicate progress, and manage technical trade‐offs.
- Stay current with emerging technologies, frameworks, and best practices across frontend and backend engineering.
- All About You
- 5+ years of software engineering experience across backend and frontend development.
- Strong hands‐on experience with TypeScript, React & Node.
- Experience with Java is also required.
- Strong understanding of UI/UX principles, responsive design, and accessibility standards.
- Demonstrated experience collaborating with designers and product teams to deliver user‐centric products.
- Solid experience building RESTful APIs, microservices, and working in cloud environments (AWS, GCP, or Azure).
- Knowledge of modern engineering practices: CI/CD, automated testing, code reviews, Agile/Scrum.
- Excellent communication and stakeholder‐management skills, with the ability to translate between technical and business needs.
- Proactive, detail‐oriented, accountable, and comfortable working independently in a fast‐paced environment.
- Bonus: Experience in Open Finance, payments, or regulated financial services.
- Corporate Security Responsibility
- All activities involving access to Mastercard assets, information, and networks come with inherent risk. 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.
- Complete all mandatory security training as required by Mastercard guidelines.
Qualifications
- 5+ years of software engineering experience across backend and frontend development.
- Strong hands‐on experience with TypeScript, React & Node.
- Experience with Java is also required.
- Strong understanding of UI/UX principles, responsive design, and accessibility standards.
- Demonstrated experience collaborating with designers and product teams to deliver user‐centric products.
- Solid experience building RESTful APIs, microservices, and working in cloud environments (AWS, GCP, or Azure).
- Knowledge of modern engineering practices: CI/CD, automated testing, code reviews, Agile/Scrum.
- Excellent communication and stakeholder‐management skills, with the ability to translate between technical and business needs.
- Proactive, detail‐oriented, accountable, and comfortable working independently in a fast‐paced environment.
- Corporate Security Responsibility
- 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.
- Complete all mandatory security training as required by Mastercard guidelines.
- Equal Opportunity Statement
- Mastercard is an inclusive equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disability, veteran status, or any other characteristic protected by law.
- Demonstrate practical proficiency with AI coding assistants such as Claude and GitHub Copilot.
- Code generation and refactoring.
- Debugging and root-cause analysis.
- Writing unit and integration tests.
- Generating technical documentation and code comments.
- Code reviews and identifying potential bugs or edge cases.
- Exploring alternative technical implementations and architectures.
- Automating repetitive development tasks.
- Demonstrate strong prompting skills and the ability to provide appropriate context, constraints, examples, and expected outcomes to AI tools.
- Validate, test, and review AI-generated code rather than relying on it blindly.
- Understand the limitations, security considerations, privacy concerns, and potential inaccuracies of AI-generated output.
- Stay current with emerging AI-assisted software development practices and developer productivity tools.
- Experience integrating AI capabilities or LLM-based APIs into applications is a strong plus.
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.
Preferred Qualifications
- Bonus: Experience in Open Finance, payments, or regulated financial services.
About Mastercard
Global payment processing and financial technology service provider.
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