Senior Linux Systems Administrator

• Administer and manage enterprise Linux environments, ensuring service availability, performance, security, and continuity.
• Manage the computing resources of servers integrated with infrastructure monitoring and management platforms.
• Install, configure, upgrade, and maintain Linux operating systems, components, and services, including high-availability environments.
• Diagnose, analyze, and resolve complex incidents and issues related to the Linux platform and its services.
• Apply fixes, security updates, and vendor patches, assessing their impacts and risks.
• Define and administer naming standards for users, groups, and security structures.
• Configure and provide support for proxy and content-filtering solutions.
• Configure, monitor, and troubleshoot infrastructure and service monitoring tools.
• Configure and support the administration of firewalls, IPS, and other security controls.
• Define, structure, and administer shared resources on servers, including directories, permissions, and file shares.
• Provide technical support for hardware, operating systems, and services running on Linux servers.
• Participate in infrastructure projects, contributing information on server architecture, characteristics, and sizing.
• Prepare technical documentation, operating procedures, and best-practice guides for Linux in production and high-availability environments.
• Track and support tickets with vendors and manufacturers involving highly complex issues.
• Research, evaluate, and technically specify Linux-based infrastructure solutions.
• Maintain, enhance, and continuously improve DevOps solutions.
• Work with development teams to improve performance, security, and automation.
• Implement and administer modernization, automation, and operational-efficiency tools.
• Support technology transformation initiatives and propose infrastructure solutions.
• Contribute to standards, processes, and architectures for supporting and evolving the Linux platform.

• Bachelor’s degree in Information Technology or a related field.
• At least five (5) years of experience in the specified specialty, working in critical enterprise and high-availability environments, demonstrated through employment records or a statement from a public or private institution.
• ITIL 4 training, with a minimum duration of 12 hours.
• Official ITIL 4 Foundation certification or higher.
• LPIC-3 or Red Hat Certified System Engineer (RHCSE) certification.
• Solid experience administering enterprise Linux environments, high availability, information security, monitoring, automation, DevOps, networking, and server infrastructure.
• Knowledge of proxies, firewalls, IPS, virtualization, containers, observability tools, and automation will be considered an advantage.

• Hapvida, Bradesco, or Unimed health insurance (available depending on the region)
• Hapvida Odonto or Bradesco Dental insurance
• Meal or food allowance
• Life insurance fully paid by Lanlink
• Transportation allowance
• Gympass
• Auster
• Pharmacy benefits program
• Partner university benefits
• Corporate Education Platform
• Welcome-to-the-World Baby Kit
• Moodar Platform