Job Summary: Lead and coordinate technical teams responsible for maintaining and evolving Linux and Windows environments, ensuring high availability and infrastructure modernization. Key Highlights: 1. Strategic leadership of infrastructure technical teams. 2. Modernization and automation of Linux and Windows environments. 3. Crisis management and infrastructure project planning. **Your typical day:** * **Strategic Leadership:** Coordinate the technical team responsible for maintaining and evolving Linux and Windows environments, ensuring delivery of highly available services to external customers (hosting) and internal users. * **Performance Management:** Define, monitor, and improve service levels (SLAs/SLOs) and operational metrics across the entire server ecosystem. * **Infrastructure Modernization:** Lead standardization initiatives, routine automation, and infrastructure modernization efforts to eliminate manual tasks and technical debt. * **Crisis Management:** Take frontline responsibility during critical incidents, ensuring rapid service restoration, effective stakeholder communication, and root cause analysis (RCA). * **Project Planning:** Coordinate the full lifecycle of servers and services—from migration and upgrade planning to implementation of new infrastructure technologies. * **Security and Compliance:** Oversee hardening practices, patch management, backup policies, and security compliance across all environments. * **Cross-Team Collaboration:** Actively collaborate with Networking, Security, Product, and Engineering teams to enable new solutions and continuous improvements. * **Resource Management:** Control budgets, timelines, and allocation of technical resources for infrastructure projects. * **Excellence Culture:** Promote technical documentation, knowledge sharing, and Site Reliability Engineering (SRE) culture within the team. **Responsibilities and Qualifications** * **Leadership Experience:** Proven track record coordinating technical teams, developing talent, and managing IT team performance. * **Architectural Vision:** Ability to understand complex environments and propose solutions that balance technological innovation with operational stability. * **Consultative Skills:** Influential profile capable of engaging stakeholders at all hierarchical levels and building strategic cross-departmental partnerships. * **Agile Mindset:** Practical experience applying agile frameworks to infrastructure and IT operations. * **Scale Focus:** Prior experience managing large-scale server fleets, whether in internal data centers or hosting providers. **Requirements and Qualifications** * **Academic Background:** Completed undergraduate degree in IT, Computer Engineering, Information Systems, or related fields. * **Operating Systems:** Advanced administration of Linux ecosystems (Rocky, CentOS, Ubuntu, Debian) and Windows Server (versions 2012 through 2022). * **Network and Application Services:** Expertise in web servers (NGINX, Apache, IIS), databases (MySQL, SQL Server), and essential protocols (DNS, SMTP, FTP). * **Hosting:** Proficiency in hosting environments: * Web servers (Apache, NGINX, IIS); * Databases (MySQL/MariaDB, SQL Server); * DNS, FTP, SMTP, POP/IMAP; * Common hosting control panels and tools (cPanel, Plesk, internal tools, automated provisioning, etc.); * **Virtualization and Orchestration:** Platforms such as VMware, Hyper-V, KVM, or Proxmox. * **Automation and IaC:** Experience with configuration management and automation tools (Ansible, Terraform, Puppet) and scripting (Shell, PowerShell). * **Observability:** Monitoring and data analysis tools (Zabbix, Grafana, Prometheus, ELK or similar). * **Application Troubleshooting:** Ability to diagnose multi-language applications (PHP, Node.js, .NET) and debug hardware/software bottlenecks. * **Infrastructure Security:** Knowledge of hardening, WAF, attack mitigation (DDoS), firewalls, and vulnerability management in multi-tenant environments. * **IT Processes:** Strong understanding of incident, change, and problem management based on industry best practices (ITIL). **Additional Information** **What we offer:** Health insurance; Dental insurance; Meal allowance or food allowance; Childcare assistance; Profit-sharing program (PPR); Birthday day off; Life insurance; Wellhub; Férias&Co (travel benefit); 6-month maternity leave and 20-day paternity leave; Flexible working hours; #Secuida – our Quality of Life Program; Partnerships with numerous educational institutions, healthcare providers, leisure and entertainment venues, among others. Did you know LWSA is a digital solutions ecosystem composed of multiple companies? Indeed—and all share a single objective: **to transform businesses so they can grow and thrive through technology**. Our team is recognized for its **passion, creativity, persistence, and collaboration**. Just like the professionals building their careers here, each of our brands has its own unique identity—but all share the same drive to evolve and consistently deliver excellence. **LWSA has a place that could be perfect for you!** Here, you can build your career in an environment of **autonomy, respect, and diversity**, at a company committed to developing its professionals to keep innovating and creating tomorrow’s solutions. So, are you ready to join this ecosystem and discover all the possibilities we have for your career? Feeling a strong match with our profile and sharing your resume here is the first step toward becoming part of our team!