Senior Software Engineer, Agentic AI — Build AI Tools

Mastercard; Dublin; On-site; EUR 120,000 - 160,000; Full time

Job summary

Mastercard Foundry R&D seeks a Senior Software Engineer to advance Agentic AI, building tooling and services for AI-enabled products and developer workflows. You’ll work hands-on on scalable systems, shaping patterns and integration methods for Mastercard teams.

The role emphasizes practical AI system design, strong software fundamentals, and a product mindset to deliver usable, reliable AI-powered capabilities across Mastercard’s platforms.

Qualifications

• Hands-on experience with Generative AI, LLMs, or agentic patterns.
• Experience with modern AI frameworks and SDKs for agent orchestration.
• Strong understanding of orchestration, tool-calling, and AI system design trade-offs.
• Experience building scalable, production-grade software.
• Experience with React and Next.js; backend in Java or Python.
• Experience with developer tooling, CI/CD, and containerized apps.

Responsibilities

• Build software, tooling, and platform capabilities that support Mastercard’s Agentic AI strategy.
• Design and implement AI-enabled applications, workflows, and developer-facing capabilities.
• Develop reusable services, patterns, and integrations for AI and agentic systems.
• Evaluate models, frameworks, and tools across quality, cost, latency, reliability, and maintainability.
• Contribute to new product and prototype development from concept through validation.
• Improve developer experience through automation, AI-assisted workflows, and platform thinking.
• Partner with product, engineering, and business stakeholders to turn ideas into working solutions.
• Advocate learnings, prototypes, and best practices across the organization.

Skills

Generative AI

LLMs

Agent orchestration

React

Next.js

Java

Python

CI/CD

Cloud-native

Containerization

Dev tooling

Tools

LangGraph

OpenAI Agents SDK

Vercel AI SDK

Codex SDK

Job description

Mastercard Foundry R&D seeks a Senior Software Engineer to advance Agentic AI, building tooling and services for AI-enabled products and developer workflows. You’ll work hands-on on scalable systems, shaping patterns and integration methods for Mastercard teams.

The role emphasizes practical AI system design, strong software fundamentals, and a product mindset to deliver usable, reliable AI-powered capabilities across Mastercard’s platforms.