Senior AI Product Builder — Agentic AI Prototyping

Mastercard Inc.; Malahide; On-site; EUR 100,000 - 150,000; Full time

Job summary

Mastercard Foundry R&D is seeking a Senior AI Product Builder to turn opportunities into working, high-fidelity experiences. You will design AI-enabled apps and agentic workflows, building prototypes with modern web tech and AI tools. You’ll test with real users, then scale through reusable patterns and tooling across Mastercard teams.

You’ll lead through influence, collaborating with product, CX, and engineering to deliver production-ready solutions and communicate decisions clearly.

Qualifications

• Proven ability to frame problems, design coherent responses and build testable prototypes.
• Experience leading digital products from opportunity to working product with measurable outcomes.
• Strong front-end foundation and ability to build realistic prototypes with modern web tech.
• Familiarity with AI coding tools or agents and how they impact output quality.
• Ability to discuss APIs, data flows, and trade-offs with engineers and architects.

Responsibilities

• Own end-to-end experience for a defined product scope, including user flows and visual quality.
• Design and build AI-enabled applications and agentic workflows from concept through validation.
• Develop high-fidelity prototypes using modern front-end tech and AI-assisted development tools.
• Ensure accessibility, responsive behavior, and robust error handling across states.
• Collaborate with product, CX, engineering, and business stakeholders to turn ideas into working solutions.

Skills

Product judgment

Experience design

Front-end engineering

JavaScript

TypeScript

React

AI tooling

Product strategy

Education

Bachelor's degree in CS/Engineering/Design/Product Management

Tools

JavaScript

TypeScript

React

AI agents/tools

Job description

Mastercard Foundry R&D is seeking a Senior AI Product Builder to turn opportunities into working, high-fidelity experiences. You will design AI-enabled apps and agentic workflows, building prototypes with modern web tech and AI tools. You’ll test with real users, then scale through reusable patterns and tooling across Mastercard teams.

You’ll lead through influence, collaborating with product, CX, and engineering to deliver production-ready solutions and communicate decisions clearly.