JOB DESCRIPTION

Our Purpose

Title and Summary

Senior Software Engineer – Integrations & API Connectivity Overview
Mastercard is a global technology company powering an inclusive, digital economy, enabling secure and seamless transactions across 210+ countries.
This role sits within Mastercard’s Open Finance Europe – Connectivity team, responsible for building and operating scalable API integrations with financial institutions across Europe.
As a Senior Software Engineer, you will be a key hands-on contributor responsible for designing, building, and operating secure, reliable backend services. You will work on complex engineering problems, contribute to system design decisions, and deliver high-quality solutions that operate at scale in production environments.
What You’ll Do
•Design, develop, test, and support scalable APIs and backend services
• Contribute to system design decisions with a focus on scalability, resilience, and performance
• Deliver high-quality, production-ready code across the full software development lifecycle
• Troubleshoot and resolve production issues, ensuring system stability and reliability
• Participate in code reviews and uphold engineering best practices and standards
• Implement effective testing strategies (unit, integration, end-to-end)
• Collaborate with cross-functional teams including Product, Architecture, Security, and SRE
• Improve observability, automation, and operational efficiency across services
Technology Stack
• Backend: C#, .NET, Web APIs
• Cloud: Azure (App Services, Key Vault, Blob Storage), AWS (S3, Redis, Microservices)
• Data:



PostgreSQL, Flyway
• Practices: CI/CD pipelines, observability, secure development
• Plus: Java / Spring Boot, AI-assisted tools (, Git Hub Copilot)
What You Bring - Required
• 3-5 years of qualified software engineering experience
• Strong hands-on experience building cloud-based, distributed backend systems
• Solid expertise in API development, scalability, and production support
• Ability to solve complex technical problems with a structured, pragmatic approach
• Strong understanding of SDLC, testing practices, and secure coding principles
• Proven ability to own and deliver components/services independently
• Strong collaboration and communication skills
Preferred
• Experience in payments, banking, or Open Banking (PSD2) environments
• Experience working with microservices architectures
• Familiarity with observability, monitoring, and incident response practices
• Exposure to AI-assisted development tools (, Git Hub Copilot)

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.

📌 Senior Software Engineer – Integrations & API Connectivity (India)
🏢 Mastercard Data & Services
📍 India