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

Mastercard; Rathcoole; On-site; EUR 120,000 - 180,000; Full time

Job summary

Mastercard is seeking a Lead Software Engineer to modernize platforms, focusing on Fraud Rules/Engines, and guide large-scale migrations. You will collaborate with cross-functional teams to define solutions, ensure architectural alignment, and uphold security standards.

You will mentor engineers and drive PoCs from concept to deployment. The role requires 8+ years in software and micro-services, hands-on coding in Go/Python/Java, and expertise in distributed systems and ALM practices.

Qualifications

• 8+ years in software development and micro-services architecture.
• Proficient in Go, Python and Java with secure code practices.
• Experience leading large-scale platform migrations.
• Experience with Fraud Rule Engines and scalable systems.
• Strong leadership and cross-functional collaboration skills.

Responsibilities

• Lead modernization of platforms, especially Fraud Rules/Engines.
• Collaborate with cross-functional teams to drive solutions.
• Ensure implementations align with architectural standards and security.
• Mentor teams and drive engineering excellence.
• Contribute to PoCs, pilots and scalable system design.

Skills

Go

Python

Java

Distributed systems

Leadership

Fraud Rule Engines

DevOps

Architectural patterns

Cross-functional collaboration

Security

Education

Bachelor's degree in IT/CS

Tools

JIRA

Git

CI/CD

Job description

Mastercard is seeking a Lead Software Engineer to modernize platforms, focusing on Fraud Rules/Engines, and guide large-scale migrations. You will collaborate with cross-functional teams to define solutions, ensure architectural alignment, and uphold security standards.

You will mentor engineers and drive PoCs from concept to deployment. The role requires 8+ years in software and micro-services, hands-on coding in Go/Python/Java, and expertise in distributed systems and ALM practices.