IT & Networking Administrators

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  1. Abdullah Bin Hussain

    Abdullah Bin Hussain

    Expert Virtual Assistant & Web Researcher

    Bangladesh - Last active: 1 day ago - Tests: 15 - Portfolio: 54

    Are you spending too much time managing projects, instead of growing your business? Can't afford full-time staff? Well, if the answer is yes...then let the expert do the work for you. CONGRATS!!! YOU ARE AT THE RIGHT PLACE.... I am the ONE probably you are looking for your project. I can provide you the following services: 1. Virtual Assistance 2. Web Research 3. Data Entry 4. Data Processing 5. Data Mining 6. Web Design 7. Website Management 8. SEO Consultancy 9. Social Media Marketing 10. E-mail Marketing and so on... Areas of my expertise are: 1. Research, Data Collection/Data Mining 2. Data Entry/Data Processing 3. HTML+CSS, Wordpress 4. Magento. Shopify, Opencart, Zencart, Amazon, eBay 5. Open CRM, Zoho CRM 6. Mailchimp, Aweber 7. Photoshop, Illustrator 8. MS Office, Open Office 9. Online File Management System 10. Team Collaboration: Open Atrium, Teamlab etc.

    Groups: Bluehost Developers and Designers

    $15.00 /hr
    3,964 hours
    5.00
  2. Marius V.

    Marius V.

    Certified Systems Engineer

    Romania - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    I am a System Administrator focused on Microsoft products with 8+ years of professional experience on IT companies. I have extensive experience installing, configuring, administering and maintaining operating systems (Windows Server 2003, 2008, 2012) and services like AD, DNS, DHCP, WDS, Hyper-V, Exchange, SCCM, SCOM. Time spent working in this area has allowed me to achieve knowledge and improve my skills in computing that would make me well suited to assist you in accomplishing your goals. I work methodically and efficiently to insure that my partner is satisfied with the end result and the cost of job is well justified.

    $25.00 /hr
    127 hours
    4.97
  3. Grigory Kuznetsov

    Grigory Kuznetsov

    System Engineer

    Russia - Last active: 15 days ago - Tests: 4

    Qualified Cisco Academy Instructor (CCNA). 14+ years of work in field of IT. My main skills are: LAN & WAN design and deployment. Network equipment management - CISCO, HP, D-Link; network design, load balancing, backup strategy, monitoring. Data Center equipment management – computing systems, power distribution, cabling, air preparing. Administration of Microsoft Windows NT/2000/2003/2008/2008R2/2012 server OS (AD, DNS, DFS, DHCP, WDS, RDP, TS, clustering and load balancing). Administration of all Microsoft Windows client OS. Administration of Linux Red Hat/Cent OS (iptables, samba, squid, nginx, apache+mysql(optimization, DDoS mitigation)). Administration of VMware vSphere (ESXi + vCenter). Comprehensive monitoring using Zabbix.

    $15.00 /hr
    9 hours
    5.00
  4. Damien C.

    Damien C.

    ZCreator Developer

    Ireland - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    I'm a web based database developer, working with Zoho Creator. Using my knowledge of ZCreator, I provide custom solutions to meet and or exceed requirements. With 4+ years of experience. I also have a broad range of experience in the workplace, quality, manufacturing and logistics roles to name a few. My strengths lay in wanting to understand the benefit of the project I am engaged with. This enables me to develop an application exceeding expectations.

    $11.11 /hr
    0 hours
    5.00
  5. Vladimir Laskov

    Vladimir Laskov

    Linux and FreeBSD Systems Architect

    Russia - Last active: 4 days ago - Tests: 9 - Portfolio: 1

    Specialties: Architect, RHCE, DevOps, Performance, Scalability, Redundancy / Fault Tolerance, High Availability ( CARP, HSRP, VRRP, DRBD, HAST ), Network Security, Troubleshooting, Solaris, OpenBSD, FreeBSD, Linux ( RHEL, CentOS, Ubuntu, Debian, SUSE ), Nginx, Apache, PostgreSQL, MySQL, Postfix, Dovecot, Asterisk, GIT, Jenkins, iptables, PF, IPFW, Nagios, PHP, Ruby, Java, Python, Perl, IPSEC, SSL, VPN, VMWare, SAN, ZFS ... Started out with a Sinclair ZX-Spectrum. Over 10 years of experience in IT area, including 6 years in Senior System Administrator. positions. Expert in Unix-based systems (5 years), advanced person in database administration (3 years). Person with strong analytical and troubleshooting skills, strong team building skills, well developed management skills, interpersonal skills.

    $25.00 /hr
    0 hours
    5.00
  6. Alexander S.

    Alexander S.

    Windows, Linux, virtualization engineer

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 10

    I specialize in servers administration (Microsoft, Linux) and virtualization technologies (Hyper-V, VMWare,Parallels), with clouds (Office 365, AWS, Azure) I can offer you not only the technical skills (in-depth knowledge of Windows and Linux architectures, local area networks), but also ideas that will contribute to raising the quality of your internal IT-structure. I believe that I can be helpful for your project. • Overall 12 years of work experience in IT. • Experience in building, upgrading and supporting virtual infrastructure based on VMware vSphere (ESXi, vCenter, VCOPS, etc.), Microsoft Hyper-V, VMware View. • Strong knowledge of the principles and technologies of providing High Availability and Disaster Recovery virtual infrastructure such as VMware HA, Fault Tolerance, (S)vMotion, Site Recovery Manager. • Rich experience in P2V (Physical to Virtual) and V2V (Virtual to Virtual) migrations of production customer’s services based on Linux and Windows using VMware vCenter Converter. • Experience in building physical server infrastructure based on HP and IBM server equipment (blade, rack-mount, storage). • Knowledge of the principles SAN and Ethernet networks. • Experience in auditing, troubleshooting and upgrading customer’s server infrastructure. • Working experience with technical documentation (writing and using). Last 8 years I worked in Oil company and Cloud provider company as one of the key specialists on the Teamlead and Senior System Engineer position. My skills can be divided to three main specializations: First of all, my strongest point is enterprise-level virtualization technologies VMware/Microsoft/Parallels: - VMware vSphere 4.0-5.5 - VMware (Horizon) View 4.6/5.0/5.2/6.0 - VMware vCloud Suite - MS Hyper-V 2008/2012 - Parallels Virtuozzo Second area it's Windows/Linux-based services administration: - Microsoft OS and Services: Windows 2003-2012(R2), Active Directory, DNS, DHCP, MS SQL, MS Exchange, Office 365, MS System Center series, Sharepoint - Enterprise infrastructure systems - Symnatec Netbackup, HP Insight Control, Parallels Automation - Service Desk systems OTRS, Kayako, MS Service manager, HP Service Desk - Unix-like OS and Services: CentOS, RHEL, Zabbix, DHCP, DNS, iptables, Apache, Nginx, PHP, MySQL, FTP, Samba The third area is enterprise-level server equipment HP/IBM: - HP Proliant, Blade system, SAN P-series - IBM System X - APC equipment

    $25.00 /hr
    2 hours
    5.00
  7. Sergey Aleynik

    Sergey Aleynik

    Android developer and network engineer

    Russia - Last active: 1 day ago - Tests: 1

    Software and network engineer with 11+ years experience. Highly motivated self-organized professional. Mobile Apps Development (Android) Comprehensive knowledge of network client-server communication. Quick learner, able to integrate easily into teams, has the ability to design and implement solutions to complex problems. Technical skills include: - Core Java programming - Java collections, java concurrent - Multi-threading - Android SDK (Fragments API, SQLite, UI, Widgets, etc…) - ORMLite - Volley - Roboguice - Material design - Animations - Custom UI components - Git - Google Play - AdMob - Linux - FreeBSD - LAMP - xen-hypervisor - Postfix mail server - Bacula - Cisco ( routers, switches, VoIP, WIFI ) - Avaya(VoIP, DECT) - Asterisk - network protocols(SMTP, HTTP, FTP, etc.) and formats(JSON, XML, etc.) - Windows network services. - Windows OS.

    $20.00 /hr
    0 hours
    5.00
  8. Ioan alexandru T.

    Ioan alexandru T. Agency Contractor

    Network and System Engineer

    Romania - Last active: 1 day ago - Tests: 7 - Portfolio: 4

    I am an energetic, well-spoken and capable Network & System Administrator with expertise in Linux Server Administration and Network equipments. I enjoy working on all things IT related, and I have extensive experience of resolving Linux server problem and also network related problems. My key strengths include, but are not limited to: - WebServers: Nginx, Apache, Tomcat; - Databases: MySQL, MariaDB, CouchDB; - Mail Servers : Postfix, Dovecot, Qmail, DBMAIL; - FTP: Vsftpd, ProFTPD, Pure-FTPD; - VPN: OpenVPN, PPTP; - Firewall: csf, afp, custom iptables firewall; - Backup Solutions; - Proxy Servers; - Bash Shell Scripting; - Web Security (PHP Security php_suhosin, Apache Security mod_Security, OS Security (malware detection), Antivirus (clamav)); - - Traffic Control Scripts based on TC; - Monitor Technologies; - TCP/IP, VLANS, Routing Protocols - (RIP, EIGRP, OSPF) I have CCNA Certification and during time I had participate to online courses to improve my experience in Linux, Security, Firewalls. I will bring to your company or project fresh ideas, new perspectives, a diversity of experiences, and a dedication to service.

    Associated with: MoonQuake Agency

    $11.11 /hr
    2,586 hours
    5.00
  9. Rashid Ali Khan

    Rashid Ali Khan Agency Contractor

    Senior Software Engineer (DOTNET)

    Pakistan - Last active: 1 day ago - Tests: 6

    I have been developing systems in .NET Technologies for last 7 years. I have participated in the development of both web and desktop based applications of variety of nature. I took part in the development of reporting module of a product named eTarget which is a CRM based application used by various clients in UK. I have also developed a utility which is currently in use for synchronizing the data of two databases to enable desktop application and website to work on the same data in parallel. I have also participated in the development of web based system for Pakistan Customs, which is currently in use, by using ASP.NET and SQL server 2005. I have mainly used C# and VB.NET as programming language, .NET as framework and SQL Server 2000/2005/2008 for databases. I can handle the projects which involves development in C#, VB.NET, ASP.NET and SQL Server 2005, 2008.

    Groups: AspDotNetStorefront

    Associated with: Raksoft

    $17.78 /hr
    9,151 hours
    4.98
  10. Md Shiefuzzaman

    Md Shiefuzzaman Agency Contractor

    .NET Developer

    Bangladesh - Last active: 7 days ago - Tests: 4 - Portfolio: 2

    * 8 years professional working experience as a software developer in .NET platform with proficiency in designing, developing and testing object oriented, client server and web based applications. * In depth experience in life cycle of design, development, specification, testing and documentation. * Experience in developing applications using C#, ASP.NET, ADO.NET Data, LINQ, Entity Framework, ASP.NET Web services, AJAX Control Toolkit, Telerik Toolkit, JQUERY, JAVA Script, XML, SQL server, ORACLE and Code Smith on Windows. * Through understanding and hands on experience on Relational Database Management Systems: ORACLE (9i, 10g, 11g), SQL Server (2000, 2005, 2008, 2008R2 (at present)). * Experience in architectural standard of framework Façade, Observer, and Singleton Pattern. * Extensively used Visual Studio 2003, 2005, 2008 and 2010 (at present) for development of different applications. * Expertise in SQL, designing and implementing Stored Procedure and Triggers in SQL Server. * Hands on experience in multiple version control systems like SVN, Visual SVN, TFS, GIT

    Associated with: devs' arena

    $12.00 /hr
    74 hours
    5.00