Senior AI Product Builder — Agentic AI Prototyper

Mastercard Inc.; Howth; On-site; EUR 120,000 - 160,000; Full time

Job summary

Mastercard Foundry R&D is seeking a Senior AI Product Builder to turn opportunities into real, high‑fidelity AI-driven experiences. You will test with real users and drive AI-enabled solutions toward production, building tooling and reusable patterns for cross‑team use.

Design and build in a modern web stack with AI agents, owning the end‑to‑end experience and collaborating with product, CX, engineering, and security to ensure high quality outcomes.

Qualifications

• Bachelor’s degree in a relevant field or equivalent practical experience.
• Strong front-end engineering foundation and ability to build realistic prototypes.
• Experience delivering AI-enabled or agentic products.

Responsibilities

• Own end-to-end user experience for a defined product scope.
• Design and build AI-enabled applications and agentic workflows.
• Develop high-fidelity prototypes using modern web tech and AI tools.
• Lead testing with users and translate feedback into improvements.
• Collaborate with product, CX, engineering, security and business stakeholders.

Skills

Front-end engineering

JavaScript/TypeScript

React

AI tools/agents

Education

Bachelor’s degree in CS/Engineering/Design/PM

Tools

AI-assisted development tools

Job description

Mastercard Foundry R&D is seeking a Senior AI Product Builder to turn opportunities into real, high‑fidelity AI-driven experiences. You will test with real users and drive AI-enabled solutions toward production, building tooling and reusable patterns for cross‑team use.

Design and build in a modern web stack with AI agents, owning the end‑to‑end experience and collaborating with product, CX, engineering, and security to ensure high quality outcomes.