IT & Networking Administrators

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  1. Ivan G.

    Ivan G. Agency Contractor

    Python/Javascript/Embedded Developer and Linux Admin

    Ukraine - Last active: 4 days ago - Tests: 5 - Portfolio: 9

    Over the last 10 years, I have developed a wide range of web, linux-specific and embedded projects using Php, MySQL, Python, C, C++, Qt, JS, jQuery, Twitter Bootstrap and other technologies including sites, daemons, hardware firmware, ARM linux distributions. I'm interesting in network solutions, production (real-world) automation and metaprogramming using Common Lisp.

    Associated with: Theta Labs

    $30.00 /hr
    468 hours
    4.82
  2. Artem L.

    Artem L. Agency Contractor

    DevOps | Unix | Windows | Plesk | WHM | cPanel Administration

    Ukraine - Last active: 1 day ago - Tests: 7 - Portfolio: 7

    Skills included, but not limited to: - AWS, WHM, Cpanel, HSphere, Plesk control panels installation, recovery - Apache, Nginx, PHP CGI, APC, php-fpm, Varnish - MSSQL 2000-2012, MySQL, MariaDB, percona pxc, Galera. - Sites migrations between hostings - IIS 6.0/7.0/7.5/8.0 configuration / troubleshoting - Windows software installation/troubleshooting - DNS configs: bind, nsd - Server administration / RHELL(CentOS), Ubuntu, Debian, Win Server 2003/2008/2012 - PHP-Mysql scripts installations and fixing issues with them(Joomla, wordpress, oscommerce, zencart, drupal) - web security(fixings sites after they are hacked, finding security breaches, cleaning code from malware injections) - Monitoring: Nagios, Munin, Zabbix - WSUS server I have also a lot of knowledge fixing issues with sites written in HTML, PHP.

    Associated with: Funny Rainbow

    $30.00 /hr
    948 hours
    5.00
  3. Roman T.

    Roman T. Agency Contractor

    UNIX and security expert, network and system administrator

    United States - Last active: 4 days ago - Tests: 9 - Portfolio: 3

    I offer the following key services: o Network and System Administrator Services o Information Security Services o IP-PBX and VoIP softswitchs: installation and maintenance o Software development: Web, desktop and server applications o SEO o Complex solutions for business-process automation Core Competencies o Network and System Security o Data Integrity and Recovery o Analysis and Planning o Risk Assessment and Cost Benefits Analysis o Research and Development o Project Management Experience Platforms: IBM, Sun SPARC, MikroTik, Cisco, Huawei, D-Link, Edgecore. OSs: UNIX (FreeBSD, OpenBSD, *BSD, Solaris), Linux (Debian, Ubuntu, Gentoo, Red Hat, SuSe, uLinux, ASP, Mandrake, Fedora Core), CiscoIOS, MikroTik Router OS, VRP (Huawei), Windows 95/98/NT/ME/200/XP/2003/Vista/7/2008. Languages: C/C++, UNIX Shell Scripting (Shell, sed, awk), Delphi (Pascal), Perl, PHP, SQL, T-SQL, Assembler (Intel and AT&T SysV/386 syntax), GTK+ applications, Erlang, HTML, CSS, JavaScript, JQuery, XML, XSLT, DTD. Databases Engines: PostgreSQL, MySQL, Oracle, SQLite, Mnesia, MS Access, Sybase, DB2. CMS: WordPress, Bitrix, osCommerce, Joomla, RoundCube. Panels: CPanel, Plesk, ISPManager, Webmin. Networking: TCP/IP, ISO/OSI, IPv6, Ethernet, VLAN (dot1q), ARP, VRRP, CARP, MPLS L2, MPLS L3, STP, GVRP, PPPoE, VPN, PPTP, L2TP, IPSec, OpenVPN, SNMP, SSH, XMPP, SIP, h323, BGP, OSPF, RIP, IRC, AJAX, Netflow.

    Associated with: IntLös

    $35.00 /hr
    275 hours
    4.92
  4. Ara Sadoyan

    Ara Sadoyan Agency Contractor

    Linux, Hadoop, Clustering and Cloud Computing expert

    Armenia - Last active: 6 days ago - Tests: 5 - Portfolio: 4

    I'm 12 years experienced Linux Administrator. I'm professional in: Design, planning and deployment of Hadoop clusters, high available Linux web farms, NoSQL clusters (Riak, Cassandra, Couchbase, CouchDB). Design and deployments of public/private cloud infrastructures. Linux Networking & Security Concepts. Design, deployment and administration of multi node web farms. Linux Clustering and H-A ,Service level load balancing and clustering Linux services (WEB,MAIL,PROXY,DNS,LDAP,SAMBA etc) OS security concepts, Monitoring tools (Nagios, Munin, Ossec, SNMP etc) Bash scripting MySQL Administration, Server optimization Configuration and optimization of JVM`s and Java Application Servers Virtualization solutions (VMWare, XEN, CITRIX etc) And more !

    Associated with: NetAngelS

    $33.33 /hr
    3,496 hours
    4.96
  5. Justin D.

    Justin D. Agency Contractor

    Executive Director/ Business Consultant/ Senior Project Leader

    United States - Last active: 3 days ago - Tests: 11

    Justin DeWitt is a highly recognized and accomplished consulting industry operating executive with experience in sales strategy, technology, IT services, marketing, construction and manufacturing industries. He has deep driven expertise in mobility, cloud computing, and executive leadership. Justin is a highly effective, strategic leader with a proven track record of leading global organizations and operations through successful transformations and growth. He has extensive P&L experience with the proven skills to drive growth and revenue on a global scale utilizing international expansion and managing a global footprint in the industry. Justin is characterized as a strategist with in-depth visionary and tactical skills which is backed by a consistent track record of delivering extraordinary results in growth, revenue, operational performance, and profitability. He is known for his unique business model development, customer centric approach, passion for his craft and deep candor. Justin believes that “value comes from within ones own ability to lead successfully” and is known for turning an idea into an operational plan that generates positive results. He has a proven track record in successfully leading teams in architecting and implementing clients ROI driven enterprise solutions and successfully developing and deploying internal dynamics that bolster growth in the marketplace and help to keep clients on the leading edge of their respectable industries.

    Associated with: Premier Business Advisors, Inc. Agency, CMS Outsourcing Agency

    $85.00 /hr
    4,552 hours
    4.98
  6. Fedor P.

    Fedor P. Agency Contractor

    DevOps Engineer/ System Architect / Senior System Administrator

    Ukraine - Last active: 2 days ago - Tests: 9

    Hello I'm highly experienced, certified engineer ( RHEL cert, Novel cert, MCSA, LPI 3, OpenText ) DevOps engineer with more than 10 years of experience in wide range of projects. Chief of system administrator team in software development company. Freelancer with more then 4 years in oDesk and "five star" rating. Full range of sysadmin support, system architect, security audit, PCI compliance, consulting, automation, DevOps best practices. If you have any project required professional system administration or DevOPS - I could be the one who you are looking for :) http://www.lxpert.info

    Groups: Microsoft Certified Professionals

    Associated with: Linux-xpert Agency

    $40.00 /hr
    6,118 hours
    4.98
  7. Stoyan P.

    Stoyan P. Agency Contractor

    AWS / DevOps / Automation / Docker / Puppet / Linux / Python / Go/Ruby

    Bulgaria - Last active: 2 days ago - Tests: 6 - Portfolio: 4

    Essential skills and technologies: =========================================================== OS: RedHat/Centos, Ubuntu/Debian, FreeBSD, AIX and Solaris. IaaS/PaaS/Cloud: AWS, Rackspace, Heroku CM & Automation : Puppet expert Web & App servers: Apache, Nginx, Tomcat, Weblogic Databases: Mysql, PostgreSQL, CouchDB, Redis Monitoring: Nagios, Icinga, Zabbix, Monit, Munin, Cacti Virtualization: Citrix Xen Server, XCP, KVM, Xen, VMWare, LXC, Docker, OpenVZ Mail servers: Exim, Postfix Backups: Bacula, BackupPC HA: HAProxy, Keepalived, Corosync/Pacemaker, DRBD Programming & Scripting: Perl, Python, Ruby, Bash, Korn shell, SVN/Git Networking: DNS, DHCP, OpenLDAP, Samba, NFS, Vyatta OS, Quagga, Firewalls, Cisco/Dell routers & switches, OSSEC & IDS, Varnish, Vagrant Other: Atlassian products, Agile, ITIL ========================================================== Goals: ===== My major objectives are to provide high quality systems administration and architecture services, and create long-term relationships with my clients. I am a motivated self-started with very strong professional attitude towards any kind of job; a team player with rich experience working in large and small teams, able to follow long terms objectives and meet stringent deadlines. I am a certified Linux administrator with more than 10 years of experience working in web hosting, banking, telecom and IT security industries. I've designed and architectured highly scable and multi-tier envrionments on the cloud and in proprietary enterprise facilities around the globe. I can help you successfully complete your project(s).

    Associated with: GoToAdmins

    $62.50 /hr
    430 hours
    4.90
  8. Manoj Kumar

    Manoj Kumar Agency Contractor

    Microsoft Certified in SQLServer,SSIS,SSRS,T-SQL,SQL Azure DBA Expert

    India - Last active: 11 hours ago - Tests: 7 - Portfolio: 8

    I am having 12+ years of experience in SQL Server in various versions( SQL Server 7.0,2000,2005,2008,2008R2,2012,2014,SQL Azure cloud) 1.Performance tuning and optimization, 2. SSIS : SQL Server Integration Service 3.SSRS : SQL Server Reporting Service 4.T-SQL : Transact Structure Query Language 5.SQL Azure Development and configuration 6.DBA : Database Administration 7.Query or Stored Procedure Optimization 8. MS-Access(VBA Coding). Completed various development ,design, performance optimization projects using these technologies I am seeking for opportunities to work on projects related to these technologies. Contact Skype IM :manojkumarfbd Education: Microsoft Certified IT Professional MCITP: Database Developer MCA M.Sc Computer Sc. GNIIT Diploma

    Groups: Microsoft Certified Professionals

    Associated with: Complete Solution

    $30.00 /hr
    4,410 hours
    4.92
  9. Azwaan A.

    Azwaan A. Agency Contractor

    Senior Developer/Solution Architect (C#, .NET, MVC, AZURE, SQL)

    Sri Lanka - Last active: 1 month ago - Tests: 7 - Portfolio: 9

    An Accomplished Software architect, consultant and Lead Developer, with in-depth expertise on Desktop, Web, Cloud and Enterprise applications on the .NET platform as well as strong ETL and Business intelligence expertise on the SQL Platform. Highlights 13 yrs of experience in the Industry. More than 20,000 Hrs of development work. more than a Dozen certifications (MCPD, MCITP, MCTS) on various .NET and SQL Server related technologies. I write clean code, Follow SOLID principles in development, designed to to develop manageable, extensible and reusable systems Co-Founded a US Based startup Available to work on US EST work hrs Expertise on requirements analysis , estimation to Architecting solutions and leading teams on complex development projects to review and performance tune existing applications. In-depth knowledge and familiarity of developing applications for a number of industry domains such as Financial services, Energy, Lead Processing, Automobile, Telecom billing, Consumer goods and Manufacturing. Extensive experience in enterprise software development life-cycle. Agile and Scrum/XP Methodologies in managing project teams. Key Achievements Architected, Managed and led development effort to build a complete eco-system for automobile lead processing, lead delivery, inventory management and digital advertising. Founded a Microsoft technology consulting and outsourced product development firm, leading its product delivery team and delivered multiple solutions in different industry verticals. Led improvements to existing development processes using best practices, guidelines and process re-engineering on multiple engagements. Multiple successful consulting and delivery engagements turning around troubled existing systems into revenue generating applications that can be scaled to meet customer demand. Was part of team that built the world’s first Online AGM solution. Web Technologies ASP.NET MVC (2.0 to 5.0), ASP.NET Forms, HTML5/CSS3, WCF Web Services , .NET 2.0 Web Services, SOAP/JSON/AJAX/REST, JQuery, ODATA, Knockout JS Windows Applications Windows Forms, WPF, Silverlight Frameworks .NET Framework (2.0 to 4.5), Telerik Kendo UI, Windows Azure (Cloud), Amazon SDK Software Design/Architecture Patterns GRASP, GOF, MVC, MVP, SOLID, DRY, KISS, YAGNI, Domain Driven Design(DDD), CQRS Databases/Database Technologies SQL Server (2005 – 2012), SQL Integration Services, SQL Reporting Services, Geo-Spatial Data, MongoDB, LINQ, Entity Framework, SQL Azure Middleware MSMQ, Windows Workflow Foundation, NServiceBus, SQL Service Broker Development Process Methodologies Agile, Scrum/XP, Prince 2, TDD, DDD , BDD, Continous Integration (CI) Tools Jetbrains Teamcity, 3Scale API, JetBrains DotTrace, YSlow Payment Technologies PayPal, Chase Payment Tech, Speedly, BrainTree, PayPros

    Associated with: Inexis Consulting

    $33.33 /hr
    2,781 hours
    4.92
  10. Vadim Sudzenka

    Vadim Sudzenka Agency Contractor

    IT Engineer, manager / Systems Engineer Microsoft

    Czech Republic - Last active: 11 hours ago - Tests: 9 - Portfolio: 14

    • Successful background in system administration, top-down networking implementation, system analysis, technical support, optimization and troubleshooting.• Strong experience in implementation of large-scale networking solutions, based on different operating system technologies, various hardware and software.• Experienced Engineer specializing in analyzing and solving complex IT problems.• Good understanding of ITIL principles (passed ITIL v3 Foundation test).• Independent, resourceful and detail- oriented individual, able to quickly grasp new technology and work effectively in the team demonstrating good organizational and interpersonal skills• MCITP Enterprise Messaging Administrator on Exchange 2010•MCSE holder• MCITP Windows Database Administrator SQL2005 (MCDBA) • LinkedIn profile http://www.linkedin.com/in/vsudenko Microsoft Windows Server 2008/2003/2000/NT • Linux (Unix, Aix, Solaris, HP-UX) • MS Exchange, Lotus, Web, FTP, Proxy servers, MS IIS, MS Project, Tivoli• MS Active Directory• TCP/IP, LAN, WAN, VPN, DNS, DHCP• Virtualization technologies (VMware, Virtual PC).• Citrix MetaFrame Server - administrator• Backup systems (VERITAS Backup Exec, ARCserve, IBM Tivoli Storage Management) Good knowledge MS SQL 7.0 - 2012, stored procedures, backup, DTS, Jobs, restore from Log, etc.

    Associated with: Tower Group

    $30.00 /hr
    6,117 hours
    4.97