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  1. Victor oloan alexander D.

    Victor oloan alexander D.

    Experienced System Administrator (Linux/Windows)

    Indonesia - Tests: 7 - Portfolio: 2

    Have good experience in Linux distributives, such as REDHat/Centos/Fedora, Debian/Ubuntu and etc. Can setup and configure web services such as apache, nginx, tomcat/glasfish in different configurations. Have good understanding and expereinced with mail services - postfix-horde, Zimbra, Microsoft Server product and configure AD, Exchange. Docker Cloud: AWS

    $25.00 /hr
    3 hours
    4.95
  2. Sergiy Bykovets

    Sergiy Bykovets

    C/C++, win32 API, DDK, TDI, WFP, Qt, BHO

    Ukraine - Tests: 2

    - 10 years experience in C/C++; - 7 years experience in Win32 API; - 5 years experience in development of windows kernel drivers; Service Description: - Client - server applications; - Desktop applications; - Windows system programming; - Windows driver development; - Network filters, firewals; - Internet Explorer addons; - Firefox plugins

    $38.89 /hr
    19 hours
    4.70
  3. Rudolf De La Cruz

    Rudolf De La Cruz

    VOIP Expert

    Philippines - Tests: 1

    Work History Ring Central (Mandaluyong City) (2010- Present) Tech support T2 (ASG Floor Support)  As a Technical Support Engineer I provide high value implementation and support to our largest enterprise customers.  Self-motivated with the ability to dive right in, be effective and make a difference  Delivering value to customers by helping them get the most out of their RingCentral service.  Helping them setup and optimize their hosted PBX solution to meet their business needs.  Troubleshoot their network, router, firewall and ISP connections to optimize their VOIP quality of service.  Apply expert knowledge of RingCentral services, VOIP technology and networking hardware and software  Provide premium implementation and technical support to RingCentral’s largest customers  Plan, design, install, maintain, troubleshoot and repair RingCentral’s solutions  Understand network architecture required to support RingCentral’s VoIP services  Recommend network hardware, software and design elements  Answer difficult technical questions, solve technical problems and suggest appropriate workarounds  Utilize network performance monitoring tools to isolate and root cause issues  Provide quick and accurate handling of support interactions – phone, chat, screensharing, email.  Experience with VOIP technology and terminology including SIP, RTP, QoS, COS, CDR.  3+ yrs experience in customer focused role - post-sales technical support  Experience configuring, updating and supporting VOIP solutions in a multi-location environment.  Ability to work efficiently in a highly demanding, team-oriented and fast paced environment

    $10.56 /hr
    440 hours
    4.72
  4. Bhushan Katariya

    Bhushan Katariya

    Microsoft Windows and Exchange Analyst

    India - Tests: 3

    A Highly motivated and result-oriented individual with over 10 years of experience in a professional environment having a great work culture and meticulous attention to detail with emphasis to customer satisfaction. Ability to achieve set targets and goals in a timely manner. Microsoft Certified System Engineer in Windows Server 2003 with Exchange and Technology Specialist in Windows Server 2008. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Exchange Server suite (2003 to 2013). Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Active Directory Services(2003, 2008). Extensive hands-on experience in configuring, monitoring, and maintaining systems running Microsoft Cluster Services. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft SharePoint Services(MOSS 2007). Troubleshooting Windows Server related issues(AD, DFS, IIS, DHCP, DNS, and WSUS) Projects, Installations, Configurations and Migrations etc. Configuring and troubleshooting on Mailbox, CAS, and Hub and Edge server roles installations. Configuring High availability solutions like Local Continuous Replication/Cluster Continuous Replication/Standby Continuous Replication technologies. Troubleshooting on Mailbox Migration, Public Folder replication, Database Inconsistency, Exchange services, Offline Address Book, Recovery Storage Groups. Implementing Disaster Recovery in exchange servers for recovering exchange information. Configuration and Troubleshooting External Mail flow (Inbound/Outbound), Mail flow between servers, Spam issues, Edge Synchronization. Configuring Anti spam/Transport agents, Application Relay, SMTP/Transport service problems. Analyzing and evaluating issues using various tools and utilities like EXBPA, EXTRA, ExMon, PFDAVAdmin, Exmerge, DCDIAG, NetDiag, NLtest, telnet, Replmon, AD modify, ADMT, MFCMAPI, etc. Installation, Configuration & Monitoring of Trend Micro Internet Messaging Security Suits & Symantec Endpoint Security. Basic Hygiene & Server hardening of all Windows OS, Linux OS & Subsystems likes IIS, ADS, and SQL Server etc. Security Health Check of all Windows & Linux OS. Ensure documentation of all activities & procedures adhering to organization standards.

    $16.67 /hr
    336 hours
    4.83
  5. Muhammad Imran Afzal

    Muhammad Imran Afzal

    C/C++ Developer,Device Driver,Kernel modules and Bash scripting Expert

    Pakistan - Tests: 4 - Portfolio: 1

    I have 6 years of experience in Linux development and administration. Device Drivers, Kernel Porting, Kernel Modules, Development in networking protocols, gcc/g++ and Python are my expertise. I have strong knowledge in Linux internals including kernel specifics and system calls. I have work experience with mips64 based Cavium's OCTEON multicore netwrok processors. I have worked on network protocol offloading in this. I have the ability TO DO.

    $22.22 /hr
    13 hours
    5.00
  6. Kirill P.

    Kirill P.

    Asterisk Expert and System Administrator

    Russia - Tests: 10

    I work on IT more than 12 years. VOIP/Asterisk Developer, Expert System Administrator and Network Administrator, Perl Programmer. Generally, I develop solutions based on Asterisk and speech technologies (speech synthesis and speech recognition systems), complex IVRs, integration with external sources and databases, custom click-to-call and callback systems, etc. I prefer custom development for Asterisk and FreeSWITCH. Usually, I use Perl for development. I have huge experience in solutions based on Asterisk such as FreePBX, Elastix, Trixbox, vicidial, etc. Also I support critical 24x7 systems, administration networks and servers, perform IT consulting, etc.

    $25.00 /hr
    10 hours
    5.00
  7. Diaa Sami

    Diaa Sami

    Professional C++ Developer, Software Engineer, Computer Wizard

    Egypt - Tests: 18 - Portfolio: 9

    I am an ambitious and established software developer who started development in highschool, I'm fond of graphics and interactive applications in general and the open-source philosophy. I have used several programming languages, frameworks and APIs, including but not limited to C/C++, .NET, Java and Python, wxWidgets, OpenGL, Win32, COM and sockets, I've programmed for several platforms ranging from hand-held devices to Desktops(Windows and Linux) and client-server applications. I'm always interested in challenging jobs.

    $27.78 /hr
    2,086 hours
    4.99
  8. Cuong Le

    Cuong Le

    Senior Software Developer (C/C++/MFC,Java,...)

    Vietnam - Tests: 4 - Portfolio: 4

    Thanks for your reviewing. I am Cuong Le. I have over 6 years of software development experience in C/C++/MFC. Experienced in software development life cycle including requirement analysis, design and implementation. Programming Languages: C/C++, MFC, C#. Databases: PostgreSQL, SQL Server. Software process: CMMI, Agile (Scrum, Jira tool). Other: Visual Studio, Eclipse, UML, GIS, GPS, XML, XML-RPC, COM, Hook, GDI, DirectX (DirectDraw, DirectShow, Direct3D), Touch Screen device and printer device. Further information, please refer at https://vn.linkedin.com/in/ltcuong

    $8.89 /hr
    16 hours
    5.00
  9. Justin McGee

    Justin McGee

    Server & Networking Specialist

    Australia - Tests: 2

    Currently employed as a Systems Administrator in a large education institution. I have worked with all types of technologies - Windows Server, *NIX, HP, Cisco, Aruba, PHP, MySQL, IIS, Apache, and similar technologies. I've also done extensive work with Office 365, Microsoft System Centre suite of applications, as well as project design, implementation and management. Happy to take on any and all projects!

    $77.78 /hr
    11 hours
    4.99