Jeff Estella

   Jefferson Estella Senior Systems/Network Engineer | IT Consultant | Technical Support Engineer Inceptigon | Superloop | IT-Afdelingen | SPi Global | Qualfon     (- |-| Dumaguete, Central Visayas EXPERIENCE     8 years of total experience Dec 2016 – Present Network Support Specialist (1.9 years - Present ) Superloop Pty Ltd | Sydney Australia Industry Internet Service Provider/Hosting Specialization IT/Computer - Network/System/Database Admin Role Network Service Desk Proactively monitors the overall infrastructure of the company and creating events depending on the severity of network outages. Communications manager on network events. Send planned outages and system notices to customers. Proactively fix the customers issue when alarm is encountered in the monitoring. Offshore network support for residential, and campus villages, student accommodation and corporate customers all over Australia. Use of Enterprise Gmail, Hipchat, Slack, Olark Chat and Bria softphone as means of communication to customer. Use of Linux jumboxes in troubleshooting networks devices. Handling of Mikrotik, Cisco, Juniper, ATS and TP-Link, D-link, Ubiquiti, Cambium network devices Troubleshoot email issues of the customers in various kinds of email application platform with the help of iredadmin and roundcube. Fix Internet account issues of the customer using the portal and overseer. Handles monitoring software like Cacti, Solarwinds, RAN, NMS and Traverse (Kaseya). Enroll new nodes and services to our monitoring systems. Create and resolve tickets in Salesforce and 360 system. Oct 2017–July 2018 Senior Network Engineer (Part-time Consultant) (9 Months) Inceptigon Pty Ltd | Victoria Australia Industry IT Services/Web Development Specialization IT/Computer - Network/System/Database Admin Offshore network/systems support for clients in Victoria Use of Skype for business, Outlook and 3Cx phone systems via Engin as means of communication Troubleshoot Yealink and Polycom phones if issues will arise Handling of Fortigate firewalls, cisco switches and routers of the clients Handling of Amaysim wireless systems Use of Kaseya VSA and LabTech to remotely control client PCs and Kaseya BMS as the ticketing system Use of PRTG as network monitoring Use of Microsoft Azure for cloud/data infrastructure July 2016 – Nov 2016 Systems Engineer | IT-Consultant (4 Months) IT-Afdelingen | Copenhagen, Denmark Industry IT-Enabled Services/Web hosting Specialization IT/Computer - Network/System/Database Admin Role Network/System Engineer Offshore server/network administration/migration/creation using Hyper-V, VMware technology. Handling servers specifically on VDI, terminal, Exchange, DC and RD. Firewall and switch administration. Management of AV software in corporate servers. Proactive monitoring and resolving errors on GFI and PRTG systems. Patch/update management of servers based on schedule and client request. Management of Sophos UTM 9, VegaDNS, SolidCP and Aerohive access points. Creates technical documentation and Network/System diagrams using MS Visio. Setup and maintenance of network devices, printer and CCTV device in our local office. Use of MS Outlook and Skype for business and as means of communication. A company that provides IT services to almost 600 companies all over Europe. Feb 2014 – July 2016 (2 years 3 months ) Telecoms and Network Engineer SPi Global | Central Visayas, Philippines   Industry Call Center / IT-Enabled Services / BPO   Specialization IT/Computer - Network/System/Database Admin   Role Network/System Engineer     Supports the over-all network and security Infrastructure of the company with sites in Philippines, Vietnam, China, India, and the US. Working knowledge of implementing and troubleshooting various protocols and technologies such as BGP, OSPF, EIGRP, NAT/PAT, VLAN, VTP, Spanning-tree, route maps, HSRP, IPSEC, VPN, TACACS, DNS & DHCP. Management of multiple Cisco router and switch families. Handles Cisco and Avaya IP and conference phone issues including Polycom devices. Assess and administer all network equipment, hardware, and firmware upgrades. Responsible for maintaining, troubleshooting and expanding a high performance global network. Responsible for participating in network audits and developing and implementing remediation solutions. Document network designs and solutions and develop network diagrams. Hands on experience on various monitoring tools like Solarwinds, Nagios, Netflow, Uptime and Cacti. Knowledge of packet sniffing applications like Wireshark and Ethereal. Handles security devices like McAfee Web Gateway, McAfee Network Security Manager (IPS), McAfee Web Reporter and McAfee Enterprise Security Manager and Cisco ASA. Use of MS Outlook, Cisco phone and Skype for Business as means of communication.       Feb 2011 - Feb 2014 (3 years) Technical Support Engineer SPI Global | Central Visayas, Philippines   Industry Call Center / IT-Enabled Services / BPO   Specialization IT/Computer – Hardware   Role Technical Support     Desktop support for Mac and Windows based environments. Maintain the efficiency of computer equipment, peripherals, servers and network connectivity. Identify and resolve both hardware and software problems reported to the ticketing system. Reset and create users in Active Directory. Maintain and manage the company’s corporate antivirus – SOPHOS by blocking non-work related websites, application control and device control. Handles McAfee ePO of the company. Handling of servers in VMware/Hyper-V environment. Created technical documentation and diagrams in which helps the team for the local network/system infrastructure. Apr 2010 - Nov 2010 (7 months ) Technical Support Representative Qualfon | Central Visayas, Philippines   Industry Call Center / IT-Enabled Services / BPO   Specialization Technical & Helpdesk Support   Role IT Support/Helpdesk     Provide technical support (level 2) and evaluate technical solutions to company’s information technology requirements which involve communication, hardware and network management Use of Avaya softphone and Gmail as means of communication to customers and staffs. Use of Verizon tools to troubleshoot issues on the mobile phones (GSM and CDMA) and network of the customer. EDUCATION 2010 Foundation University Bachelor's/College Degree in Computer Science/Information Technology | Philippines   Major Computer Science CERTIFICATIONS/TRAININGS CCNA Cisco , 2016 McAfee Web Gateway McAfee University , 2015 McAfee Network Security Platform McAfee University , 2014 Network Technical Support Brainbench , 2014 Written English Brainbench , 2013 Mac Basic OS and Support Essentials SENCO Link Technologies , 2013 Cisco Network Design Brainbench , 2013 Computer Technical Support Brainbench , 2013 Internet History, Technology and Security University of Michigan (Coursera) , 2013 Accomplishments while in SPi Global 3 Months Data Center Rehabilitation and Transfer of Network Equipment 2 Months IDF Switch Configuration and Installation 7 Months Squid Proxy to McAfee Web Gateway Migration 2 Weeks 3 Months 2 Weeks 3 Weeks 1 Week 2 Months Installation of McAfee IPS CUCM Installation and Configuration of Cisco Hard Phones Configuration and Deployment of 33 iMac Machines Configuration and Deployment of 4 Cisco Access Points. Configuration of BGP routers for Load Balancing Created IT bible (technical documentation) of IT processes and infrastructure Accomplishments while in IT-Afdelingen 10 hours Hyper-V migration of 18 VMs to a new cluster 2 hours Created a new Windows 2012 R2 server for our ticketing system 16 hours Configured ASA firewall, Alcatel Lucent switch, Brother printer and HIK CCTV on our local site 4 hours Created a current and proposed server diagram on 2 of our clients in Denmark Accomplishments while in Inceptigon 6 hours Remote setup of Cisco 2901 router (from scratch) for Makati office 2 hours Remote configuration of Fortigate firewall in Australian client 3 hours Setup of Yealink and Polycom phones in Makati office 2 hours Setup of Cisco Catalyst 3750 (from scratch) switch in Makati office 2 weeks Coordination of the Primary Internet link (Eastern) for Makati office 4 hours Remote ISP migration from Globe to Eastern (Makati office) 5 hours Remote ISP migration from Telstra ADSL to TPG symetric fiber connection (Australian client) 4 hours Setup of network monitoring tool (PRTG) in Makati server