We are seeking a highly experienced Senior Infrastructure Analyst to support, manage, and evolve critical client environments—both in the cloud and on-premises. The professional will be responsible for ensuring high availability, security, performance, and continuity of technological services, operating within a multicloud ecosystem involving leading market providers. **Responsibilities:** * Administer, monitor, and evolve critical client infrastructure environments—both cloud and on-premises; * Operate within multicloud ecosystems using leading market providers (AWS, OCI, GCP, among others); * Manage Windows and Linux servers, with emphasis on availability, automation, hardening, and advanced troubleshooting; * Support and enhance network environments—including firewalls, VPNs, load balancers, routing, and hybrid connectivity; * Implement and maintain high-availability, recovery, backup, and business continuity architectures; * Participate in multicloud migration, modernization, and standardization projects; * Create technical documentation, procedures, and architecture diagrams; * Manage critical incidents, lead root cause analyses (RCA), and propose continuous improvement actions; * Collaborate with internal security, development, and operations teams to ensure compliance and adherence to best practices. **Requirements:** * Minimum 8 years of proven experience in IT infrastructure across cloud and on-premises environments; * Solid multicloud experience using AWS, Azure, and/or GCP; * Expertise in virtualization (VMware, Hyper-V, Proxmox, etc.); * Proficiency in networking (TCP/IP, DNS, VLANs, firewalls, VPNs, routing); * Strong experience with Windows Server and Linux (administration, automation, troubleshooting); * Experience with monitoring tools (Zabbix, Prometheus, Grafana, CloudWatch, etc.); * Knowledge of automation / Infrastructure as Code (Terraform, Ansible, etc.); * Experience with backup solutions, storage, high-availability systems, and critical environments; * Ability to operate under pressure during complex incidents; * Strong client relationship skills—understanding client needs and expectations, and delivering high-quality service; * Advanced technical English. **Desirable Differentiators:** * Relevant certifications (AWS Solutions Architect, Oracle Cloud Infrastructure Architect Associate, GCP Associate, RHCE, VMware VCP, etc.); * Experience in hybrid environments and multicloud migration projects; * Experience with Kubernetes and containers; * Experience with VSAN clustering (VMware) and Failover Clustering (Hyper-V); * Knowledge of observability and advanced logging; * Experience in IT consulting; * Fluent English (technical and conversational)