IT & Networking Administrators

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  1. Marius V.

    Marius V.

    Certified Systems Engineer

    Romania - Last active: 2 days 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
  2. Damien C.

    Damien C.

    ZCreator Developer

    Ireland - Last active: 2 days 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
  3. Alexander S.

    Alexander S.

    Windows, Linux, virtualization engineer

    Russia - Last active: 2 days 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
  4. Vladimir Laskov

    Vladimir Laskov

    Linux and FreeBSD Systems Architect

    Russia - Last active: 5 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
  5. Grigory Kuznetsov

    Grigory Kuznetsov

    System Engineer

    Russia - Last active: 16 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
  6. Kumar R.

    Kumar R.

    Project Manager-Information Architect-BI-Java-PHP-Product Management

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

    Accomplished professional with nearly 9 years of experience in facilitating IT Project Management and Software Development initiatives. Delivers efficient and reliable IT solutions and excels in building/leading teams in high-pressure environments. Committed to professionalism, highly organized, able to see the big picture while paying attention to small details, and exhibits excellent communication skills. Recognized for being a creative visionary, technical and development leader with an entrepreneurial sprit, leveraging in-depth knowledge of the marketplace and the manufacturing landscape to significantly increase revenue and operational efficiency.9 years of experience delivering mission-critical, full life-cycle projects on-time and on-budget for the Healthcare, SaaS, Telecom and Logistic industries. Results- oriented with an extensive background in the architectural design, development, testing and deployment of Enterprise Infrastructure, Data Automation, Data Warehousing, Business Intelligence, Windows, Linux and Networking technologies. Practicing a team-based management style and possesses excellent interpersonal skills. Solid organizational, communication and time management skills. Adept at bridging Technical performance gaps to complete business interests, developing process improvement initiatives, and conveying complex product development concepts in a simple and compelling manner. Guided a team of developers at Social Network Platform. While overseeing software development projects (from conception to completion) with multi-million dollar budgets. Managerial Skills: • Being involved in a project from evaluation, conception and completion. • Ability to provide leadership, motivation and strategic direction to a multifaceted team. • Excellent interpersonal, collaboration, and problem solving skills combined with excellent written and verbal communication skills. • Strong understanding of Process Model, SDLC, and Business Analysis practices. • Proven ability to achieve results in very high-pressure environments and to keep teams motivated. Technical Skills: • Expert in building client/server and web-based management applications • Deep knowledge in development technologies and architectures • Mobile Device Management, client computing management • UML, XML, HTML, CSS, JavaScript, GIT, Bugzilla, Team Foundation Server • Microsoft SQL Server, SQL Azure, Access, MySQL. • Specialization in Operations Management, Development, Admin Management, Entrepreneurial, Project Management and Business Analysis & Intelligence. Linkedin Profile :http://www.linkedin.com/pub/kumar-raghav/b/941/214

    $25.00 /hr
    0 hours
    5.00
  7. Ioan alexandru T.

    Ioan alexandru T. Agency Contractor

    Network and System Engineer

    Romania - Last active: 2 days 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
  8. 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
    9,154 hours
    4.98
  9. Luba Tinaeva

    Luba Tinaeva Agency Contractor

    Business Analyst, Bitrix Developer and Consultant

    Russia - Last active: 10 days ago - Tests: 1

    If you want your organization to work more effective, that's where I can help you out. I work with 1C-Bitrix products family - Bitrix CMS and Bitrix24 Extranet. The first one allows me to create eCommerce solutions, internal social network, content portals. Bitrix24 Extranet is a corporate in-cloud portal for your team that takes team work to the higher level. In includes CRM for your leads and business processes that are configured to suit needs of any small- and medium-sized organization. I do jobs: - Bitrix24 administration and customization. - Bitrix24 creating of business processes. - Lead generation to Bitrix24 from website. - Bitrix CMS installation and customization. - Business analysis. Looking forward to work with you.

    Associated with: Aspirity

    $15.00 /hr
    63 hours
    5.00
  10. Md Shiefuzzaman

    Md Shiefuzzaman Agency Contractor

    .NET Developer

    Bangladesh - Last active: 8 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