Sergio Alexandre Valenga Email & Phone Number

Waterloo, Ontario, Canada

Waterloo, On

Waterloo, On

Network and Systems AdministratorManage Google Suite and Office 365 Install, configure, and manage virtual clusters using VMWare vSphere and vCenter;Deploy virtual servers based on Windows Servers and Linux;Monitor servers, services, using Datadog;Manage Linux services;Manage Windows services AD, DNS, DHCP and others;Monitor systems and network performance to ensure the stability, reliability, and availability;Perform troubleshooting on technical issues, find the root cause and restore normal operation;Write comprehensive documentation on IT systems, problem resolutions, and procedures;Keep up the assigned tasks and projects on-time and updated, ensuring the right deliveries;Extensive Hands-on in systems administration;Maintain close interaction with customers, committed to providing a high-level service;

Kitchener, Canada Area

Allocated at Yazaki North America working on quality control in automotive assembled wire parts.

Waterloo, On

Ponta Grossa Area, Brazil

LojasMM – Mercadomoveis is one of the largest retail store chains in Brazil, with 200+ branches, almost 3000 employees, in addition to other business units such: logistics company, call center and a Finance. Working at Mercadomoveis I had the opportunity to act in projects including the consolidation of the servers and infrastructure, implementation of the virtual store - (https://lojasmm.com) , ERP migration, servers and systems migration, implementation of information security policies, Negotiation and management of contracts and outsourced service providers, project to move all infrastructure on-premise to cloud.There I could sharpen my skill sets in activities including hands-on managing servers Linux and Windows physical and virtual, VMWare and Hyper-V environments, HP c3000/c7000 Blade chassis, Storages HP 3PAR and EMC² VNX (SAN, Iscsi), Load Balances, Cluster Databases within Postgres and Oracle, network interconnection. Managing all the infrastructure used to support custom softwares written by LojasMM's Development team and also Commercial Softwares.Linux and Windows administration, network services such: FIREWALLS with iptables, PROXY, DNS, SSH, DHCP, NTP, SMTP, IMAP/POP, HTTP/HTTPS, FTP, SMB file server, Corosync and pacemaker tools to guarantee a high availability of systems.After the ERP migration most part of network services were converted to Microsoft based services, and also were implemented the Active Directory to control the user's credentials and Desktops configurations, Remote Desktops to provide system’s access. I was personally responsible for installing and configuring servers to support different applications, automate tasks and processes with Bash scripts, designed and managed the cable and wireless networks and the interconnection between the branches. Participated in the development of annual strategic and budget planning, technologies definition, equipment purchases. Management of the technical support team.

Ponta Grossa Area, Brazil

Network and Server Infrastructure;- Hands-on experience in Linux (Installation, Configuration, Administration);- Administration of network services - Firewall, Apache, Samba, Squid, E-mail and tools and services in Linux platform;- Designing and monitoring of assembly of Logical Networks;

Technology Of Information Systems Degree, Information Systems

Business Management And Retail Certificate, Retail Management - Business

Computer'S Network Certificate, Network Infrastructure

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