Senior Site Reliability Engineer
Mastercard3 days ago
Warsaw, PolandSenior
Responsibilities
- Improve the full service lifecycle from design and deployment through operation and refinement.
- Analyze ITSM activities and provide development teams with feedback on operational gaps and resiliency concerns.
- Support system design, capacity planning, launch reviews, monitoring, availability, latency, and overall system health.
- Scale systems through automation and implement changes that improve reliability and delivery velocity.
- Support and improve CI/CD pipelines through validation, operational gating, and DevOps automation.
- Design, implement, and enhance Chef-based deployment automation, including recipes, cookbooks, release processes, and deployment processes.
- Use Jenkins to orchestrate builds and integrate Sonar, Chef, Maven, and Artifactory.
- Support deployments across multiple lower environments and implement Git-based code management for parallel environment deployments.
- Practice incident response and blameless postmortems while optimizing mean time to recover.
- Provide production administration, monitoring, troubleshooting, capacity control, availability reporting, and support for upgrades and patches.
- Collaborate with development, operations, product, infrastructure, internal, and external support teams.
- Share knowledge, mentor junior resources, and support organizational projects.
Requirements
- Bachelor's degree in computer science or a related technical field involving coding, such as physics or mathematics, or equivalent practical experience.
- Experience with algorithms, data structures, scripting, pipeline management, and software design.
- Experience debugging and optimizing code and automating routine tasks.
- Experience working across development, operations, and product teams and managing stakeholder needs.
- Experience or preferred proficiency in one or more of C, C++, Java, Python, Go, Perl, or Ruby.
- Interest in designing, analyzing, and troubleshooting large-scale distributed systems.
- Required experience with industry-standard CI/CD tools including Git or BitBucket, Jenkins, Maven, Artifactory, and Chef.
- Strong systematic problem-solving, communication, ownership, urgency, and decision-making skills.
About Mastercard
Mastercard builds and operates a global payments network used by banks, merchants, fintechs, and governments, offering card processing, real-time payments, tokenization, and fraud/risk services. It generates revenue from transaction processing and assessment/service fees across more than 200 countries and territories. Founded in 1966 and headquartered in Purchase, New York, Mastercard is a public company listed on the NYSE (ticker: MA).