Senior Software Engineer

Mastercard; Mumbai; On-site; INR 10,022,000 - 16,704,000; Full time

Job summary

Mastercard is seeking a Senior Software Engineer for EU Connectivity to design, build and operate scalable backend services and APIs. The role emphasizes secure, reliable cloud-based systems and production-grade code across the full SDLC.

You will collaborate with Product, Architecture, Security, and SRE to improve observability and efficiency. You will work on scalable API integrations with financial institutions in Europe, contributing to architecture decisions and hands-on implementation with

Qualifications

• 5–8 years of professional software engineering experience.
• Hands-on experience building cloud-based, distributed backend systems.
• Strong 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.

Responsibilities

• Design, develop, test, and support scalable APIs and backend services.
• Contribute to system design decisions with a focus on scalability, resilience, and performance.
• Deliver 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.

Skills

API development

Cloud-based backend

Distributed systems

C# / .NET

Web APIs

CI/CD

Observability

Security best practices

Team collaboration

Open Banking / PSD2

GitHub Copilot

Azure

AWS

PostgreSQL

Flyway

Tools

Azure

AWS

PostgreSQL

Flyway

GitHub Copilot

Job description

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

Senior Software Engineer Senior Software Engineer EU 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.

Shape

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

Shape

Technology Stack

• Backend: C#, .NET, Web APIs
• Cloud: Azure (App Services, KeyVault, Blob Storage), AWS (S3, Redis, Microservices)
• Data: PostgreSQL, Flyway
• Practices: CI/CD pipelines, observability, secure development
• Plus: Java / Spring Boot, AI-assisted tools (e.g., GitHub Copilot)

Shape

What You Bring

Required

• 5 8 years of professional 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

Shape

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 (e.g., GitHub 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.