Senior Software Engineer – Integrations & API Connectivity

Overview

Work within Mastercard’s Open Finance Europe – Connectivity team to build and operate scalable API integrations with financial institutions across Europe. Design, build, and operate secure, reliable backend services, contribute to system design decisions, and deliver high-quality solutions for 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 unit, integration, and end-to-end testing strategies.
• Collaborate with Product, Architecture, Security, and SRE teams.
• Improve observability, automation, and operational efficiency across services.

What you'll need

• 3-5 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 or services independently.
• Strong collaboration and communication skills.

Nice to have

• 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, such as GitHub Copilot.

Details

• Location: Navi Mumbai, India (Finicity).
• Backend technologies include C#, .NET, and Web APIs.
• Cloud technologies include Azure App Services, KeyVault, and Blob Storage, as well as AWS S3, Redis, and Microservices.
• Data technologies include PostgreSQL and Flyway.
• Practices include CI/CD pipelines, observability, and secure development.
• Additional technologies include Java, Spring Boot, and AI-assisted tools such as GitHub Copilot.
• Abide by Mastercard’s security policies and practices.
• Ensure the confidentiality and integrity of accessed information.
• Report suspected information security violations or breaches.
• Complete periodic mandatory security trainings in accordance with Mastercard’s guidelines.