Lead Software Engineer - Fraud Platforms (Java/Python/Go)

Mastercard; Lusk; On-site; EUR 140,000 - 180,000; Full time

Job summary

Mastercard in Ireland is seeking a Lead Software Engineer to drive modernization of fraud platforms using Java, Python, and Go, and to lead large-scale migrations across global systems.

You will mentor teams, collaborate with cross-functional partners, and shape architecture while ensuring security and compliance.

The role demands 8+ years of software development, strong leadership, and a track record of delivering scalable, low-latency solutions.

Qualifications

• Bachelor's degree in IT or CS.
• 8+ years of software development and microservices architecture.
• Proficiency in Go, Python and Java.

Responsibilities

• Lead modernization of platforms, esp. Fraud Rules Engines and migrations.
• Collaborate with cross-functional teams to define solutions and provide technical leadership.
• Ensure implementations follow architecture, patterns, policies and standards.

Skills

Fraud rules

Go

Python

Java

Microservices

DevOps

Leadership

Cross-functional

Security engineering

Education

Bachelor's degree in IT or Computer Science

Tools

AI/GenAI

Job description

Mastercard in Ireland is seeking a Lead Software Engineer to drive modernization of fraud platforms using Java, Python, and Go, and to lead large-scale migrations across global systems.

You will mentor teams, collaborate with cross-functional partners, and shape architecture while ensuring security and compliance.

The role demands 8+ years of software development, strong leadership, and a track record of delivering scalable, low-latency solutions.