Lead, Linux Systems Engineer

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Lead, Linux Systems Engineer

Does building CyberSecurity solutions that will enable our customers across the world with faster, smarter and more effective protection from cyber risk excite you? We are looking for a Linux system administrator that will work with our teams in Sweden to improve system reliability, improve operations and build strong partnerships with key stakeholder teams.

As part of the platform team, you own, monitor and improve our on-prem infrastructure. This includes physical servers, networking equipment, application and virtualization clusters that power our Threat Protection Platform as well as internal systems.

Role
• Improve system reliability through our ‘you build it, you run it’ philosophy, such as by adding metrics, building dashboards, and documenting.
• Improve our incident management lifecycle to identify, mitigate, and learn from reliability risks.
• Develop strong partnerships with other teams to understand and proactively address future technology needs and current pain points.
• Increase productivity by building internal tools and automation workflows that reduce maintenance overhead and speed up processes.
• Incident response, diagnosis, and follow-up on system outages or alerts across the infrastructure which also includes being part of the on-call rotation.

About You
• Previous experience as a Linux system administrator or DevOps engineer.
• Strong analytical and troubleshooting skills, fluency in coding, and high traffic/ high availability system architecture.
• You actively take ownership of the systems and processes, find and implement improvements throughout their lifecycle.
• Speak English with full professional proficiency or higher.

Desired Skills & Experience
• Proficiency in building and managing Kubernetes clusters.
• Expertise in automation tools like Ansible, Puppet, or Saltstack.
• Familiarity with Infrastructure-as-Code (IAC) principles.
• Strong background in Linux and/or BSD operating systems.
• Proficient in at least one programming language, such as Python or Go.
• Knowledge of monitoring technologies, including Prometheus and Grafana.
• Experience in administrating distributed systems like Kafka and Elasticsearch.
• Extensive knowledge of information security, both technical measures and concepts.
• Proficiency in building scalable, reliable and high-performance software applications and systems.
• Solid grasp of the OSI model, networking concepts, and common protocols like ARP, IP, TCP, UDP, and HTTP.
• Understanding of routing protocols like BGP and IS-IS.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.