Senior Linux Systems Administrator

Lanlink Informática Ltda.

Administrador de Sistemas Operacionais Linux responsável pelo suporte e manutenção em ambientes corporativos críticos. A Lanlink busca profissionais para garantir alta disponibilidade e desempenho em sistemas Linux.

Posted 6/2/2026full-timeRemote • BrasilSeniorWebsite

Tech Stack

Tools & technologies

CloudKubernetesLinuxOpenShift

About the role

Key responsibilities & impact

Manage the use of computational resources of the server platform, in coordination with network management, ensuring availability and adequate performance;
Install and configure Linux operating systems, components, and services, including high-availability environments;
Diagnose and resolve incidents and problems in operating systems and critical services, ensuring continuity in high-availability scenarios;
Update operational environments by applying fixes and patches released by vendors;
Define and structure resources to be accessed on servers (folders, shares, permissions);
Establish naming conventions and organization of users and groups in accordance with security policies;
Perform basic configuration and provide support for content filtering solutions (proxy);
Perform basic configuration and provide support for infrastructure monitoring solutions;
Participate in projects, providing technical information on sizing and specifications of servers, their components, and software;
Prepare technical documentation and internal articles on best practices for using and administering the Linux platform in high-availability environments;
Provide support for hardware- and operating system-related issues on servers;
Perform basic configuration and provide support for firewall and IPS solutions;
Follow up on technical tickets with vendors to resolve complex issues related to the Linux platform;
Research solutions and prepare technical specifications to support analyses and decisions related to Linux server infrastructure.

Requirements

What you’ll need

Bachelor's degree in Information Technology (IT).
Demonstrable minimum of 5 (five) years' experience in the stated specialty in critical, high-availability corporate environments, evidenced by employment records (workbook) or a declaration from a public or private institution where the candidate has worked.
Official ITIL Foundation V4 or higher certification.
Linux Professional Institute Certification (LPIC-3) or Red Hat Certified Engineer (RHCE).
OpenShift Administrator or Kubernetes Administrator course (20 hours).
Cloud Computing Architecting course (20 hours).
Next-Generation Firewall training (20 hours).

Benefits

Comp & perks

Health plan (Hapvida, Bradesco Saúde, or Unimed, depending on local availability);
Dental plan (Hapvida Odonto or Bradesco Dental);
Food or meal voucher (Alelo);
Life insurance fully paid by Lanlink;
Transportation voucher;
Pharmacy discount program;
University/tuition partnerships;
Totalpass membership;
Internal learning platform;
Newborn welcome kit;
Moodar platform (therapy platform offering discounted rates for Lanlink employees).

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Linux operating systemshigh-availability environmentsincident diagnosisproblem resolutionconfiguration managementcontent filtering solutionsinfrastructure monitoring solutionsfirewall solutionsIPS solutionstechnical documentation

Soft Skills

coordinationtechnical communicationproblem-solvingorganizational skillsattention to detail

Certifications

Bachelor's degree in Information TechnologyITIL Foundation V4Linux Professional Institute Certification (LPIC-3)Red Hat Certified Engineer (RHCE)OpenShift Administrator courseKubernetes Administrator courseCloud Computing Architecting courseNext-Generation Firewall training