Site Reliability Engineer

HCLTech is a global technology company, home to 219,000\+ people across 54 countries, delivering industry-leading capabilities centered on digital, engineering and cloud, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13\+ billion.

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Required Skills and Experience

• Experience supporting

mission‑critical production systems

with on‑call responsibility.

• Strong understanding of

distributed systems and messaging platforms

.

• Hands‑on experience with

MQ, NATS/Event Broker

, or similar middleware technologies.

• Experience with monitoring, logging, and alerting tools.
• Proficiency in at least one scripting or programming language (e.g., Python, Bash, Java).
• Solid knowledge of Linux, networking fundamentals, and system troubleshooting.
• Ability to troubleshoot complex, multi‑component issues under pressure.

Preferred Qualifications

• Experience operating

enterprise‑scale messaging or event‑driven platforms

.

• Familiarity with clustering, replication, persistence, and high‑availability patterns.
• Experience working in regulated environments with strong change management practices.
• Exposure to automation, reliability engineering, or SRE best practices.

Corporate Security Responsibility

Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard information assets must comply with Mastercard policies and standards.

Career Development

This role supports growth across SRE levels (SRE I through Principal), with increasing expectations around:

• Scope and complexity of platform ownership
• Incident leadership and RCA quality
• Automation and systemic reliability improvements
• Influence and mentorship across teams