Lead Site Reliability Engineer - Java/Spring Platforms

Mastercard; O’Fallon (MO); On-site; USD 122,000 - 207,000; Full time

Job summary

Mastercard is seeking a Lead Site Reliability Engineer-2 to oversee the reliability, scalability, and performance of Mastercard’s Java and Spring applications. You will mentor engineers, automate deployments, and maintain production readiness across the platform, collaborating with Biz Ops and cross‑functional teams in a fast‑paced environment.

This full‑time, on‑site role is based in O’Fallon, MO. The ideal candidate has strong Java/Spring, Python or Go skills, deep DevOps experience, and a

Qualifications

• BS in Computer Science or related field.
• Proficiency in Java, Spring Framework, Python, or Go.
• Strong DevOps and configuration management skills.
• Experience with distributed systems and automation.
• Problem-solving, communication, and leadership abilities.
• Passion for observability and continuous improvement.

Responsibilities

• Mentor junior engineers and grow team capabilities.
• Automate deployments and streamline CI/CD pipelines.
• Maintain production readiness across Mastercard’s platform.
• Collaborate across teams to improve reliability and scalability.

Skills

Java

Spring Framework

Python

Go

DevOps

Distributed systems

Automation

Observability

Leadership

Communication

Education

BS in Computer Science or related field

Job description

Mastercard is seeking a Lead Site Reliability Engineer-2 to oversee the reliability, scalability, and performance of Mastercard’s Java and Spring applications. You will mentor engineers, automate deployments, and maintain production readiness across the platform, collaborating with Biz Ops and cross‑functional teams in a fast‑paced environment.

This full‑time, on‑site role is based in O’Fallon, MO. The ideal candidate has strong Java/Spring, Python or Go skills, deep DevOps experience, and a