Network & System Administrators

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Duane Staine

Duane Staine

Computer Technician with helpdesk support

Belize - Tests: 7

Network administration, monitoring, troubleshooting, maintenance of cable plant, topologies, addressing, network design, network security, disaster recovery planning, file servers, and network configuration. Support network functions such as e‐mail, file and print services, routers, firewalls, fax and modem services, network‐related software, and Internet services through comprehensive knowledge of computer networking principles, concepts, protocols, network monitoring tools and terminology. Provide technical assistance and guidance to other IT professional staff when needed. Performed hands‐on administration, monitoring, and troubleshooting of Local Area network (LAN), and circuits for WAN (Wide Area Networks) resulting in optimum performance and minimum downtime PC Repair and Maintenance for client of different companies involving full diagnosis of pc and providing proactive support to end users. Windows Server 2003/2008 and Domain and Active Directory Setup

$3.89 /hr
0 hours

Oleg K.

Oleg K.

System administrator & programmer

Russia - Portfolio: 1

Hello! My name is Oleg and I'm a system administrator. And the developer. English on intermediate level, without bad habits. Diligent and hard-working, honest and responsive. I have a good skills in servers and network administration, equally good work with linux and windows servers. Big experience in support Active Directory domains, Hyper-V virtualization, Exchange server. Good skills in network management, TCP/ip stack, 2-3 level devices, routers based on linux systems. Script-writer on python, bash, cmd, php for scraps, manage servers, diagnostic, and many more.. Currently i am developing a desktop application on C# (WPF, MVVM, WCF, MVC) Thank you for reading to the end!

$4.00 /hr
0 hours

Alexander Kulagin

Alexander Kulagin

System Administrator/Network administrator

Kazakhstan - Tests: 3

I am a senior technical engineer who has 6+ years IT experience in the following areas: - Linux maintenance (CentOS, Debian, Ubuntu, RHEL, Gentoo); - FreeBSD maintenance ; - Windows based Servers maintanance; - Cloud hosting (Amazon EC2,S3,VPS); - Virtualization: (Docker, Vmware, Xen, Openvz, KVM); - VoIP(Asterisk, Elastix, FreePBX, A2Billing) - Web servers (apache, nginx); - Databases (MySQL, PostgreSQL); - Monitoring (zabbix, nagios) - Mail servers (postfix, exim, dovecot); - Networking (Cisco,Mikrotik, D-link) - Scripting: bash, perl, shell Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, backups, monitoring etc), firewalls (iptables, ipfw, pf)

$15.00 /hr
0 hours

Dung Nguyen Tien

Dung Nguyen Tien

IT System Administrator

Vietnam - Tests: 1

I have more than 10 years experience working in the IT sector. The jobs I do as: - Build an enterprise website with WordPress, Joomla, SharePoint. - Install, configure email systems with Exchange, Mdeamon, Sendmail, Postfix. - Install, configure a VoIP phone system with Elastix. - Install, configure Windows Server Roles: Active Directory, DNS, DHCP, IIS, FTP, Radius, VPN, Certificate authority, WSUS, System center,... - Install, configure a LAMP and LEMP stack on CentOS, Ubuntu platform. - Install, configure open source network monitoring with Cacti, Zabbix. - Setup firewall system of Cisco, Cyberoam appliances or pfSense open source and VPN site-to-site or client-to-site.

$8.89 /hr
0 hours

Charlotte Beech

Charlotte Beech

Database Administrator

United States - Tests: 1 - Portfolio: 1

My specialty is the development and design of personalized, easy-to-use Microsoft Access databases with various capabilities, such as: importing, exporting, and organized storage of data; creation of form templates for inspections, inventory, etc.; project time and budget management via data collection, customized forms, and reports; and tracking job training records by setting reminders via Outlook calendar appointments and/or deferred emails (to name a few).

$17.50 /hr
0 hours

Ilya Filippov

Ilya Filippov

IT Manager

Ukraine

Qualified IT Manager with 6 years’ of hands-on experience with different technologies looking for an interesting job. The main duties on previous working places were improving and supporting IT infrastructure on different levels. I'll be happy to resolve different issues linked with IT solutions. Main duties on previous positions: - Maintenance and support of local area network: internet link failover and load balancing, WAN, traffic rules, security and intrusion prevention settings (firewall, IPSec, VPN) DHCP-Server, DNS etc. based on Kerio Technologies solutions. - Providing secure access to internal network resources from the internet. - Configure and manage virtualization environment based on VMWare solutions. - Design and deploy Domain infrastructure: Domain controllers, Active Directory Domain Services, File and Storage Services, Web Servers (IIS) based on Windows Server 2012R2. - Managing Terminal servers based on Windows Server 2012R2: Remote Desktop Services, Remote Apps and Web Access. - implementing and managing Exchange Server 2013, configuring and managing Mailbox and Client Access server roles: mail flow, mobile devices mailbox policies, certificate-based authentication, user-accounts’ mailboxes settings, email connectivity settings etc. - Deploy and configure corporate SIP telephony based on freePBX distributive. - Performing timely Back-Up of servers’ environment and users’ personal data using various solutions: Windows Server Backup, Acronis technologies, VMware vCenter Converter Standalone, ghettoVCB.sh script (for virtual machines). - Maintenance hardware and peripheral equipment: scheduled preventions and stress tests. - Updating and actualizing servers’ and workstations’ software. - Support users, writing technical notes and manuals. - Procurement of IT hardware, software and maintenance products & services.

$30.00 /hr
0 hours

Nick Chronakis

Nick Chronakis

Professional specialization in Audiovisual Communication | Developer &

Greece - Portfolio: 1

Information Technology, Programming & Telecommunications Technologies excite, along with opportunities to promote the Information, Planning & Communication to offer solutions to individuals, organizations & businesses. Of the projects I've undertaken so far, so my personal engagement as my professional career & development have the opportunity to seek & work in practice how technologies of Information, Planning & Telecommunications to promote Audiovisual Communication, which is the specialization of my Degree at the Department of Cultural Technology & Communication, University of the Aegean. Also, later in my studies through seminars & personal development & career I am familiar with advanced IT technologies, Programming & Telecommunications. In particular, the design web & mobile applications. Generally other areas of interest are social media, web design, graphic design, advertising & safety data protection. I like to offer solutions to issues arising & to undertake initiatives in cooperation with others & work with consistency & perseverance & pursuit of new knowledge to meet the objectives we have set for a successful outcome. Also, constantly seek to expand my knowledge, I believe that lifelong learning is important for personal development & career. Contact me via my Email: nikolaosxronakis@gmail.com

$8.00 /hr
0 hours

Andrey Marusin

Andrey Marusin

Senior Windows System Administrator

Russia - Tests: 4

Hi, My name is Andrey Marusin. I am a beginner on upwork.com, but I have Windows administrator with over 15 years of hands-on and multi-tasking experience, adept at handling multiple system operations, including installation, upgrade, configuration, administration and maintenance of windows systems. In my portfolio are a few of the projects that I’ve developed for clients in my city. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I’m honest and fair. Thank you in advance for your time and consideration. I look forward to working with you soon. Listed below are my experience • Windows Server Administration (Windows 2000, 2003, 2008, 2012) and all Desktop Windows versions • VMWare Administration, Hyper-V • Active Directory Administration • TCP/IP Network Troubleshooting • RDP farms, terminal decisions • Server hardware planning & implementation, troubleshooting and maintenance • Backup with Symantec BackupExec, system tools e.t.c. • Hewlett Packard Proliant servers installing, managing and maintenance

$25.00 /hr
0 hours

Oleg Dukh

Oleg Dukh

System Administrator/IT Engineer

Ukraine - Tests: 1 - Portfolio: 5

Experience: OnApp L3 Support Engineer June 2013 – Present (1 year 9 months)Ukraine Provide 3rd line technical support to customers. Analyze and clarify customer queries though troubleshooting and researching existing knowledgebase articles/known issues. Diagnose the root cause of customer technical issues and resolve wherever possible in real time Setting up and configuring OnApp Clouds(Control Panels,Hypervisors,BackUp Servers,DataStores,CDN,Virtual Servers etc). Webmaster(Part-time) Freelancer January 2009 – Present (6 years 2 months)Lviv Worked in various number of web based Projects using Joomla, Wordpress, HTML, CSS, JavaScript etc. Template Customization depending on the clients' website requirements Websites deployment using open source toolset (PHP, MySQL, Apache, Linux and others (i.e LAMP), Debugging of code written by other developers. Search engine Optimization included creating unique title tags, meta tags (descriptions and keywords), internal navigation (footer text links, content links), and optimization of content. Ericpol Computer Systems Engineer September 2012 – May 2013 (9 months)Lviv Monitoring and updating Tickets (issues) through Incident management system based on ITIL Process; Configuration, operation and maintenance of telecommunication and Ethernet equipment; Maintaining information security in the organization; Configured and Administrate Linux servers and Desktops; Installing and configuring new hardware and software; Maintenance of office equipment; Identify and troubleshoot workstations, and more; Ukrainian Catholic University Engineer of IT Departament January 2008 – September 2012 (4 years 9 months)Ukraine Configured, installed, and troubleshoot desktop computers, peripherals, including installing and configuring the OS, internal components, peripherals and software; Diagnosed and resolved hardware, software, and network connectivity problems; Provided technical assistance for troubleshooting and configuration needs;

$12.00 /hr
0 hours

Rafael C.

Rafael C.

DevOps - Software Developer and Operations

Brazil

Developer with 3 years of experience, more than a half of that time working in one of the largest ecommerces of the world. My focus is on service-oriented architecture (SOA), operation (DevOps) and applications maintenance. Programming lover, I have no problems with any programming language. If I do not have the knowledge to do your work, I'll study for that.

$15.00 /hr
0 hours