Senior Platform Architect - Fraud Rules & Scalable Systems

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

Job summary

Mastercard in Ireland is seeking a Lead Software Engineer to drive modernization of high‑scale platforms, focusing on Fraud Rules and migration projects. You will lead technical direction across Go, Python and Java teams and shape scalable, secure systems.

You will mentor engineers, collaborate with cross‑functional partners, and ensure delivery of PoCs and pilots while upholding architectural standards and security practices.

Qualifications

• 8+ years in software development with microservices architecture.
• Proven experience with fraud rule engines and large-scale migrations.
• Proficient in Go, Python and Java with secure coding practices.

Responsibilities

• Lead modernization of platforms related to Fraud Rules/Engines and migrations.
• Collaborate with cross-functional teams to drive architectural design.
• Mentor engineers and promote engineering excellence.

Skills

Go

Python

Java

Microservices

DevOps

Fraud Rules Engines

Large-scale migrations

Leadership

Education

Bachelor's degree in IT/CS

Tools

ALM tools

Job description

Mastercard in Ireland is seeking a Lead Software Engineer to drive modernization of high‑scale platforms, focusing on Fraud Rules and migration projects. You will lead technical direction across Go, Python and Java teams and shape scalable, secure systems.

You will mentor engineers, collaborate with cross‑functional partners, and ensure delivery of PoCs and pilots while upholding architectural standards and security practices.