Lead Software Engineer

Mastercard is a global technology company that powers economies and empowers people. The Lead Software Engineer will design and deliver scalable AI solutions, focusing on LLM-based systems and modern cloud platforms, while collaborating across teams to ensure compliance with security and performance standards.

Responsibilities:

• Design, develop, and deliver AI-powered solutions leveraging modern architectures, including LLM-based systems and retrieval-augmented generation (RAG)
• Build and maintain enterprise knowledge bases with vector search capabilities, enabling semantic search and intelligent information retrieval
• Develop LLM-driven applications using frameworks such as LangChain, including prompt engineering, chaining, and orchestration patterns
• Implement and integrate solutions leveraging Model Context Protocols (MCP) or equivalent model interaction frameworks
• Architect scalable and secure solutions across cloud and data ecosystems, including AWS, Cloudera, and Databricks
• Collaborate cross-functionally with product, engineering, and data teams to translate business needs into AI-enabled solutions
• Develop and maintain robust APIs and microservices to support AI applications and front-end integrations
• Ensure solutions adhere to Mastercard’s standards for data governance, security, compliance, and operational excellence
• Monitor and optimize model performance, reliability, and scalability in production environments
• Contribute to technical design discussions, mentor junior engineers, and promote engineering best practices