Lanlink Informática Ltda.

• Monitorar, analisar e responder à eventos de segurança cibernética. • Identificação e investigação de potenciais incidentes. • Uso de ferramentas de detecção e análise de ameaças. • Colaboração com equipes globais de TI e Segurança da Informação. • Documentar investigações, incidentes e ações realizadas. • Contribuir para melhoria contínua de regras de detecção e processos de monitoramento.

• Administer Linux servers (including clusters using Pacemaker), storage systems and SAN, virtualization with VMware vSphere and Microsoft Hyper‑V, and support mission‑critical environments. • Install and manage Linux operating systems (SUSE, RHEL, Oracle Linux). • Manage server virtualization platforms (VMware vSphere, ESXi, vCenter and Microsoft Hyper‑V), including provisioning, tuning and troubleshooting VMs. • Configure HA/DRS, vMotion, Storage vMotion, templates and datastores. • Deploy, operate and maintain storage systems (block/file/object) and SAN (zoning, LUNs, multipath, HBA, iSCSI/FC), ensuring performance, resilience and data security. • Manage server and storage infrastructure capacity. • Automate tasks using Shell scripting and, preferably, Ansible and Terraform. • Plan, implement and sustain infrastructure solutions (on‑premises and hybrid), including upgrades, migrations, patching and automations. • Create and maintain technical documentation (diagrams, procedures, runbooks) and operational knowledge base articles. • Participate in resolution of critical incidents, conduct RCAs and implement preventive actions. • Perform performance routines and environment health checks. • Handle incident queues and service requests. • Implement improvements to the server infrastructure. • Manage containers on OpenShift and AKS. • Collaborate with development, security and operations teams to ensure quality and predictable deliveries. • Perform other tasks related to the area as requested by leadership. • Comply with Lanlink Group procedures, processes, policies and compliance obligations; report concerns, issues or compliance failures, and participate in required training.

• Ensure the continuity, security and evolution of the information technology infrastructure, guaranteeing that physical and logical resources are always available, up to date and aligned with the organization’s operational needs through efficient, proactive and innovative management. • This professional is part of the Infrastructure Support for Applications team and is responsible for ensuring the availability and stability of Microsoft servers. • Install, configure, update and decommission physical and virtual servers, ensuring operation in high-availability environments (cluster). • Define and structure access resources such as folders and shares. • Define naming conventions for users and groups related to the security structure. • Define software usage policies applied to workstations, including GPOs and the creation of standard images. • Manage the antivirus/antimalware solution and resolve related issues. • Diagnose and resolve complex incidents in the Windows operational environment that could not be resolved by Level 2 support. • Act as a pre-qualification point for opening and following up support tickets with the vendor’s technical support. • Monitor server performance and perform resource sizing analysis (capacity planning). • Assess the need to install security fixes (patches) and evaluate their impacts. • Keep the Configuration Management Database (CMDB) up to date by registering and reviewing Configuration Items (CIs). • Prepare technical documentation on best practices and evaluate new solutions with their respective technical specifications. • Participate in infrastructure projects, providing technical data for sizing new servers and components.

• Planning, development, deployment and ongoing execution of technical support activities for ICT users and Infrastructure Sustaining Services, both remotely and on-site, including guidance and clarification of doubts, receipt, logging, analysis, diagnosis and handling of client requests, problem resolution, service implementation, migrations and technology transfers, execution of periodic procedures, and control and updating of documentation aimed at supporting ICT infrastructure.

• Use observability tools to monitor metrics, logs and events that indicate the status of IT services; • Configure automatic alerts to quickly detect any anomalies or performance degradations in IT assets; • Investigate collected data to identify root causes of issues, bottlenecks or service failures; • Anticipate potential problems before they affect end users through predictive analysis and trend monitoring; • Recommend and implement improvements to infrastructure or applications to optimize service performance; • Document actions taken, analyses and improvements made to maintain a detailed history and facilitate future interventions; • Support initiatives aimed at increasing the availability, reliability and performance of IT services; • Collaborate with other IT infrastructure teams to ensure solutions align with observability and performance best practices; • Execute simulations and tests to ensure services can recover quickly from incidents or failures.

• Develop and maintain backup plans that meet the organization’s needs, including frequency, backup types (full, incremental, differential) and storage; • Install and configure storage resources, including high-availability settings; • Define and implement zone policies for access to storage system resources; • Using management tools, perform tasks related to configuration and monitoring of the storage system; • Monitor and optimize storage system usage via management tools, performing load balancing when necessary to avoid resource overload; • Work with the various user teams of the storage area network (SAN) to track actual growth rates of storage capacity, notifying stakeholders and managers about the storage system status; • Record all incidents/anomalies related to the SAN, keeping stakeholders informed of issues; • Prepare and maintain up-to-date documentation related to components of the storage solution; • Track open vendor tickets for resolution of high-complexity storage-related issues; • Participate in projects, providing technical information on characteristics and sizing of computing resources required to support SAN solutions and their components; • Analyze requirements for resource sizing in the composition of the backup/restore infrastructure; • Propose changes to backup/restore policies for servers used in the production environment; • Install, configure, update and remove backup/restore hardware and software in test and production environments; • Track open vendor tickets for resolution of high-complexity backup/restore issues; • Perform periodic restore tests to validate backups; • Prepare technical documents on best practices for using backup/restore software, for dissemination to technical teams; • Participate in projects, providing technical information on characteristics and sizing of computing resources required to support backup/restore solutions and their components.

• Monitor storage usage, identify bottlenecks, and plan expansions or improvements to prevent future issues; • Define and enforce data retention, backup, and archival policies, ensuring compliance with internal and external regulations; • Diagnose and resolve storage-related issues, minimizing impact on organizational operations; • Perform updates, patches, and maintenance of storage hardware and software to ensure system stability and security; • Maintain detailed records of configurations, procedures, incidents, and improvements made to storage systems; • Participate in projects to expand or upgrade storage infrastructure, ensuring integration and compatibility; • Implement security measures, access controls, and encryption to protect stored information.

• Configure, administer and monitor storage devices and systems, such as SAN or other types of networked storage; • Monitor storage usage, identify bottlenecks and plan expansions or improvements to prevent future issues; • Define and enforce data retention, backup and archiving policies, ensuring compliance with internal and external regulations; • Diagnose and resolve storage-related issues, minimizing impact on the organization's operations; • Perform updates, patches and maintenance of storage hardware and software to ensure system stability and security; • Maintain detailed records of configurations, procedures, incidents and improvements performed on storage systems; • Participate in expansion or upgrade projects for storage infrastructure, ensuring integration and compatibility; • Implement security measures, access controls and encryption to protect stored information.

• Design and optimize the infrastructure for collecting data, logs, metrics, and events. • Use observability tools to monitor metrics, logs, and events. • Configure automated alerts to detect anomalies in IT assets. • Investigate collected data to identify root causes of incidents. • Anticipate issues through predictive analysis and trend monitoring. • Recommend and implement improvements to infrastructure or applications. • Document actions taken and improvements implemented. • Support initiatives aimed at increasing the availability and performance of IT services. • Collaborate with other IT infrastructure teams.

• Develop and maintain scripts and tools that automate repetitive tasks; • Use configuration management tools to maintain consistency across environments; • Manage configurations, containers, and environment orchestration using tools such as Docker and Kubernetes; • Automate the provisioning, configuration, and scaling of servers, clusters, and resources; • Diagnose issues in production environments; • Ensure environments are secure, with proper access control and compliance; • Perform tests to validate improvements and ensure stability; • Keep pipelines, configurations, procedures, and improvement records up to date; • Work to align automation and continuous delivery strategies.