Senior Platform Engineer — Java/Python/Go (Fraud/AI)

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

Job summary

Mastercard is hiring a Lead Software Engineer to drive modernization initiatives in fraud rules engines and related platforms. You will collaborate across teams, influence architectural decisions, and mentor engineers to deliver secure, scalable solutions.

The role requires hands-on development in Go, Python and Java, with 8+ years in software and microservices, plus a track record in large migrations and DevOps practices.

Qualifications

• Bachelor's degree in information technology or computer science or equivalent experience.
• Proficient in Go, Python and Java with hands-on software development background.
• Experience with microservices, DevOps practices and scalable systems.

Responsibilities

• Lead modernization of platforms, especially Fraud Rules/Engines and large-scale migrations.
• Collaborate with cross-functional teams to define solutions and provide technical leadership.
• Ensure designs align with architecture, security and compliance requirements; mentor team.

Skills

Go

Python

Java

Education

Bachelor's degree in IT/CS

Job description

Mastercard is hiring a Lead Software Engineer to drive modernization initiatives in fraud rules engines and related platforms. You will collaborate across teams, influence architectural decisions, and mentor engineers to deliver secure, scalable solutions.

The role requires hands-on development in Go, Python and Java, with 8+ years in software and microservices, plus a track record in large migrations and DevOps practices.