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Last updated: October 1, 2015

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Oscar Bass

Oscar Bass Agency Contractor

Senior UNIX System Engineer, LAMP, LEMP, Network Security, Cloud.

United States - Tests: 7 - Portfolio: 1

Expert UNIX system administrator and network engineer. Got a problem? I can solve it! For more than 15 years I have been the I.T. backbone and support for many online companies. I use the most up to date standards for any project I am involved in. I work extremely quick and efficiently. If you have a problem let me help you solve it. OS: Linux - Expert, FreeBSD - Expert, AIX - Expert, HP-UX - Expert, Macintosh OS/X - Expert, Windows Server - Proficient Cloud services: AWS, Rackspace, OpSource, Linode Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios, Monit, Munin, Cacti Scripting: bash, perl, shell Virtualization: OpenVZ, Xen, SolusVM Mail servers: Postfix, Exim, Sendmail, Dovecot Control panels: cPanel, Plesk, Direct Admin, Webmin/Virtualmin, ISPconfig, OpenPanel Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, backups, monitoring etc), firewalls (iptables, ipfw, pf)

Associated with: Bass Designs Agency

78% Job Success
$55.56 /hr
328 hours

Vinod C

Vinod C

Expert Linux Server Administrator

India - Tests: 7

Hello, I am Vinod and I have more than 10 year experience in managing Linux and cPanel servers. I have versatile experience in setting up and managing servers, optimising them for the best usage and fine tuning the security aspects. I am very good in migrating websites or applications from one server to another with lowest possible downtime. Along with that I use shell scripting to automate day-to-day activities. I have set up and maintained clusters of DNS servers, web servers using Apache / Nginx controlled by a Load Balancer, Db servers using MySQL / Percona /MariaDB with Master - Slave replication. I have also experience in setting up NFS server for remote storage. I can be available any time on all weekdays and can provide industry references if needed. Why you wont regret for hiring me. 1. I love what I do and I insist on doing it well. 2. I follow certain work ethics and 100 % privacy and confidentiality is promised. 3. I do not outsource my projects. 4. I use Linux PC and Laptop and hence my computer is free from virus. 5. Have more than 3 active internet connections. DSL, WiMAX, 3G x 2 . So no ISP issue I am 1. True professional. An engineer by profession and education. 2. I am honest. I don't boast on what I don't know. I know Linux and I know it well. 3. I would rather ask 100 questions than making mistakes. 4. NDA is fine. Can send it as a hard copy / fax / email. 5. I will be online on Skype / Gtalk / Yahoo / AIM and I will be available on email / phone. With my 10 year experience, I believe I can understand what is the requirement completely. I have been a help desk (Kayako, Perlbill, WHMCS, Cereberus, Zendesk ) tech for the last 6 and half years and I have been dealing with a lot of people ranging from technically sound server / network administrators and architects to laymen. I can effectively communicate in a language which is understandable to whom I am dealing with. Pasting below a briefing about my skills. my experiences include --Centos, FreeBSD, Ubuntu , Redhat -- PCI -- Nagios -- Apache , Nginx , Lighttpd , varnish cache -- Exim -- MySQL , Percona , MariaDB -- Bind -- NFS -- Shell scripting, Working over command line. -- Control panels like cPanel, Plesk, Webmin, zpanel -- Cloud operating systems like Applogic, Onapp. -- Working on KVM switch ( for installing OS / networking issue trouble shooting etc ) -- Server security , Firewalls, Mod Security --Customised server setup for Drupal , Wordpress , Joomla -- Documentation Skills -- Customer service skills - Helpdesk. And many other services / applications which are necessary for managing linux based servers and applications.

100% Job Success
$20.00 /hr
1,602 hours

Chad Leonard

Chad Leonard

Senior Network Engineer

United States

CCNP certified Senior Network Engineer responsible for the architecture, design, configuration, implementation, and tier 3 support of large enterprise networks. I have over 20 years of experience with routing and switching network components (Cisco, Dell/Force10) and 7 years with firewalls (Cisco ASA & Checkpoint). Working knowledge of session border controllers (Oracle/ACME) and load balancers (A10, F5). Also ITIL v3 Foundations certified. Additional experience, resume, or references available upon request.

$60.00 /hr
11 hours

Luis Guillermo Pose Gomez

Luis Guillermo Pose Gomez

IT Security Consultant and Writer

Argentina - Tests: 1

Networking and security specialist with more than 7 years of experience on the field with a wide range of technologies and skills. Technical writer with 4 years of experience in procedures, security policies and educational documents. Computer Systems Engineering student always searching for ways to improve, learn and take on new challenges. Knowledge aficionado with interests in self development, tecnology, artificial intelligence and neuroscience.

$50.00 /hr
0 hours

Joanna Marie Pinon

Joanna Marie Pinon

Web Explorer,Data Entry,Personal Assistant,Call Agent

Philippines - Tests: 7

To apply for a position that will enhance my qualifications, knowledge and skills especially in computer thereby providing an opportunity to attain growth and prove myself worthy to the company’s principle and objective.

97% Job Success
$3.89 /hr
3,026 hours

Zahid Hasan

Zahid Hasan Agency Contractor

Your business/personal solution

India - Tests: 13 - Portfolio: 6

Over the last 3 years, I have worked with Microsoft Windows Server 2000/2003/2008/2012 and Windows XP/VISTA/7/8, Office 365, Share Point, Azure ATMs, Networking, VSAT Technology, Computer Hardware, Networking, AMC, etc. I am seeking opportunities to palaning a network of any company and do the server administrative task, Like user creation, Managing DHCP, DNS, AD DS, ect. To provide professional services such as but not limited to: -manage Network Infrastructure -Administrative tasks -AD DS (Active Directory Domain Services) -DNS (Domain Name System) -DHCP (Dynamic Host Configuration Protocol) -VPN (virtual private network) - Web Hosting Admin -Server Administrator -System Admin -Office 365 -Azure/Share Point 2007 onward -Administrative functions -Human resources functions

Associated with: A to Z e-Solutions

83% Job Success
$16.67 /hr
134 hours

Christopher Sawicki II

Christopher Sawicki II

Senior Solution Architect

United States - Tests: 3 - Portfolio: 2

Senior Information Systems Engineer/Architect Infrastructure, Systems Architect & Senior Engineer Technologically advanced professional with an excellent history of achievement across multiple platforms in the Wintel space including Windows, Citrix and multiple virtualization technologies. Champion of the virtual infrastructure model as a key to efficiency and productivity. Experienced across the full software development lifecycle, from requirements analysis through design, development, implementation and post-implementation support. Skilled project and team leader with the demonstrated ability to successfully direct multiple enterprise efforts simultaneously. Extensive BCDR planning, architecture and execution sillset as well as strong hands-on skills involving diagnostics and problem solving across various hardware devices and software applications. Versatile, adaptable, creative and productive whether working as an individual producer or in a team. Demonstrated success designing and implementing creative solutions to challenging business and technical problems. Core Competencies: Professional Experience Xen Consulting Group, 12/08-Present Senior Consultant Requires travel 100% of the time to both domestic and international locations. Lead BCDR specialist for multiple financial and healthcare orginizations. Configure test, proof of concept and production Citrix XenApp 6, XenDesktop, XenServer environments, which include the support components such as Citrix Web Interface, Citrix Provisioning Services, Citrix Netscaler and branch repeater as well as the SQL and licensing server components. Architected and maintained internal hosting and various client Infrastructures. This included various virtual environments such as VMware, Hyper-V and Citrix XenServer. Maintained various Windows 2003 and 2008 R2 clusters, Active Directory Infrastructure and support services such as DNS and DHCP and new DFS file clusters between various regional locations. Managed the hosted and internal messaging environment which consists of Exchange 2007 and 2010. This activity also included migration work and PowerShell scripting. Migrated both the hosted and internal Active Directory infrastructures from Windows 2003 to Windows 2008 R2 functional mode and restructured the Group policy layout. Designed and deployed the hosted XenApp 6.0, XenServer and Xen Desktop hosting environment on which we serve over 200+ applications to our clients. Architected various Citrix Netscaler and Client Access Gateway implementations, which include Global Site Load Balancing (GSLB) configurations as well. Architecture and implementation of F5 Big IP devices both physical and virtual. Successfully completed SQL consolidation project which included collapsing 28 SQL servers (various versions) to one SQL 2008 cluster hosted on a two node Windows 2008 R2 cluster. Client support and migration work included but not limited to: Google/Motorola Deployed Citrix Client Access Gateway, GSLB and SSL VPN on SDX 11515 Netscaler appliances in multiple datacenters. Upgraded existing Netscaler environment. Implemented RSA two factor authentication. Implemented HDX Insight Manager. Architect and implement XenApp 7.5 and XenDesktop using PVS 7.1. Business Continuity and Disaster Recovery planning and execution. Identify RTO and RPO’s in the environment. Datacenter migration, including storage replication design, server replication, SRM and failover practices. Pilot testing and user migration to the new environment. Hospira, Inc. Responsible for current Citrix environment health check, consolidation, architecture and implementation. Designed the XenApp 7.5 solution, which will collapse 14 farms into a single environment. Developing the project and migratin plans. Designed the F5 and Netscaler solution. Designed the new DFS environment and developed the implementation and migration plans. Cook County Hospital Designed the XenApp 6.5 solution that was specifically brought in for Cerner optimization. This is to support roughly 8,000 total and 1,500 concurrent users in the environment. Designed the BCDR solution for the Netapp Flex Pod, Cisco UCS, and VMware and Citrix environments. This solution provided for a full failover of the Cerner EMR application and all dependent infrastructure components. GSLB design on Citrix Netscaler SDX 11500 devices as well as MPX 5500 hardware. Decommisioned existing F5 hardeare. Consolidated the 90+ legacy XenApp 4.0 and 4.5 farms into the new XenApp 6.5 farm. They still had to maintain a few XenApp 5.0 Servers to support the applications that would not work on Windows 2008 R2. The new environment consists of 8-vSphere 5 ESXi host Servers and a total of 75 Provisioned XenApp Servers. Worked with the application team to optimize Cerner performance. Nuveen Investments Lead Systems Management Architecture and Planning resource for the Sub-24 DR/Business Continutiy Project. This DR project had a $15 Million dollar budget for duplicating and replicating an entire Windows/VMware Infrastructure from Downers Grove, IL location to a Boulder, CO DR site. The Infrastructure included a Hitachi SAN replicated using Hitachi Unbiversal Replication, Brocade switches, vSphere 4.0 using SRM and Double Take. The environment consisted of HPDL580 connected with 2-40 GB HCA using Xsigo Infiniband technology and CISCO Nexus Switch Infrastructure. Architected and implemented the F5 environments, this included GSLB. The replicated servers and 750 Windows servers were replicated using DoubleTake and 20 HPUX servers Clustered with VERITAS Cluster Server. Frost Brown Todd Designed and implemented a 40 Server XenApp 6.5 Farm using Citrix Provisioning Services. The environment is in a multi-datacenter configuration which is in an Active/Active state. Configured the entire access layer, including 6 F5 devices using GSLB. Worked with the Application Team to install and configure all of the applications. Freeborn Peters Configured the Netscaler/Storefront/Cloud Gateway environment existing XenApp and XenDesktop implementation. Performed a complete health check/assessment for the entire Citrix Infrastructure and provided documentation for recommended remediation. DLA Piper Designed, tested and implemented a 6,000 seat XenDesktop and XenApp deployment. This environment was designed to be a fully DR compliant active/active configuration. Designed the entire Infrastructure including storage and storage replication. Built out the environment and managed all of the performance testing. Architected and built out the Netscaler Client Access Gateway configuration which included Global Site Load Balancing (GSLB). Rush Memorial Hospital Senior Solution Architect/Consultant for XenApp 6.5 and XenDesktop 5 implementation and the Intra-site BCDR initiative. Designed and implemented a full scalable XenDesktop/XenApp infrastructure which supports 10,000 users within the organization. Designed and implemented the HP Storage solution. Implemented XenServer 6.1 on HP blades. Complete Netscaler/CAG Architecture and configuration, including GSLB Worked closely with the application teams to integrate with Epic and Meditech, including Meditech market printing. The organization has over 290 applications, which I assisted with testing and troubleshooting as well as packaging and streaming about 30% of the overall applications. Shamrock Foods Migrated 84 physical Presentation Server 4.0 servers to 6 Physical XenServer hosts on XenApp 6.5 using Provisioning Services 6.0. Migrated approximately 450 applications to the new XenApp 6.5 environment. This environment had 3 vDisk images copied to 2 Zones. 320 of the applications were packaged using App-V and Streaming Proviler. Configured all F5 VIP’s and installed the F5 hardware. Jokake Construction Created a XenDesktop 5.0 environment on XenServer 6.0. This was a 900 user deployment. Applications were presented using XenApp 6.0 and some were installed on the images. HCA Healthcare Worked on a team of 14 to complete a 25,000,000 user VDI, XenDesktop implementation for HCA Healthcare. Colloborated with team members 100% of the time to implement XenDesktop VDI solution to multiple locations at the same time. Developed and implemented XenDesktop VDI solutoion for HCA Healthcare. Implemented Citrx Provisioning Services. Created and deployed the VDI Desktop Images with a standard image. Documented the environment and trained the local staff. Modified and supported the existing environment until the final handoff to Corporate was complete. Conexus Credit Union Went through complete Citrix design and arichitecture sessions with the client to determine the best deployment and architecture solution. This environment was designed in an active/active fully replicated BCDR solution. Configured the entire Citrix Netscaler, GSLB, Web Interface and XenApp 6 infrastructure. This environment is a complete 60 server virtual environment running on vSphere 4 and was configured using Citrix Provisioning services. There are over 200 packaged and streamed applications in this environment. First American Title 16 server Citrix XenApp 6 server farm implementation for proof of concept, which included 12 servers and 26 applications. Configured all components of the farm including Web Interface, license server, SQL database and all Citrix XenApp servers. Configured and documented the presentation of multiple applications. Packaged and streamed 195 applications to Citrix XenDesktop machines. Brookline College Windows 2008 R2 Active Directory Migration This included design of a new forest and domain structure. Migrated over 4000 Users, PC’s and over 400 servers. This activity involved collapsing 9 domains down into one single AD forest with two child domains. Developed the project plan and process for the migration using ADMT and executed the migration with the assistance of the local onsite engineers. Arizona Business Journal Citrix XenApp 6 server farm implementation, which included 36 servers and over 200 applications. Configured all components of the farm including Web Interface, license server, SQL database and all Citrix XenApp servers. Configured and documented the presentation of multiple applications. Navajo Tribal Utility Authority Citrix XenApp 6 farm implementation, which included 26 servers and 56 applications. Configured all components of the farm including Web Interface, license server, SQL database and all Citrix XenApp servers. Configured and documented the presentation of multiple applications. Arizona Department of Health Services Implemented IBM DS5020 and EXP 520 SAN and expansion unit for Phoenix and Tucson. Presented all storage for to the vSphere 4 servers for the vSphere deployment. Configured all IBM branded Brocade switches for Phoenix and Tucson. Documented the entire implementation and trained the local staff. The Apothecary Shop Completed a hosted Exchange 2007 to internal 2010 Exchange migration for 286 users. Planned, wrote PowerShell Scripts and executed the entire project. Cleaned up the Windows 2008 AD environment prior to the migration and resolved all Group Policy issues so that Group Policy couple be used to deploy PRF files and registry changes during the migration. Avanade/Freeport McMoran Citrix XenApp 5 and 6 administrator for a 60 server XenApp 5 farm and 10 server Citrix XenApp 6 farm. Was a team lead in the off shore transition of the Citrix XenApp transition to the Accenture team. This environment was run completely on vSphere 4, which I maintained and administered the vSphere virtual servers in the clusters. This was all hosted on HP C7000 blade hardware with an EMC SAN and Brocade storage infrastructure. Assisted with the knowledge transfer of the process and procedures of the administration as well as the Architecture to the Accenture team. Day to day administration included new server builds and decommissioning of old servers. Administered the farms which hosted over 300+ published and streamed applications. Worked all Level III and up Citrix XenApp trouble tickets. Lead Wintel Architect/Senior Engineer On Semiconductor, 05/06-11/08 Phoenix, AZ Responsible for Wintel server infrastructure design and build, which includes hardware installation, maintenance, software configurations and change management efforts. Team lead for all Wintel Business Continuity/Disaster Recovery initiatives. Duties include maintenance and support on all Wintel servers in Phoenix globally, including 500+ servers and 126,000+ users. Take ownership of Level 3 and up service calls, work orders and change requests in order to meet required Service Level Agreement. Current tasks include; Active Directory migration, server migration, consolidation and server virtualization. Implement and maintain Citrix MetaFrame XP and Citrix MetaFrame Presentation server 4.0 and 4.5. Responsible for the design and implementation MOSS 2007 infrastructure; NetApp SAN attached SQL 2005 clusters, multiple front end and application servers for four global locations. Assisted the application team with the SharePoint 2003 to MOSS 2007 migration efforts. Assist with development of Server Standards, System Architecture and documentation. Design, configuration, procurement and implementation of Windows servers and desktops images. Provide 3rd level support for Wintel desktops, servers, SMS, EPO and Exchange systems. Develop and maintain Wintel desktop systems policies and procedures documentation. Implement and maintain Wintel Server and Desktop system patch management process. Implementation coordination of Windows servers and disk sub systems. Implement and support the Wintel servers, Active Directory, SQL Server, SMS, EPO and Exchange systems. Project lead for ON Semiconductors server virtualization efforts. Realized over a $450,000 TCO reduction by virtualizing roughly 65% of the Wintel servers for North America establishing a footprint for the global virtual infrastructure. This Architecture included HP Blade servers, HP Virtual Connect modules, and Brocade switches connected to a redundant NetApp SAN environment. The VMware ESX 3.5 environment consisted of 8 full height HP Blade servers connected to the NetApp SAN on the Brocade fiber switch modules. Consolidated the server environment from 670 physical servers down to 192 physical servers. This included 368 P2V migrations and the remaining 110 servers were consolidated to the remaining hardware that was best suited for the applications. Liaison with regional and corporate IT and Operations groups on projects and sustaining support. TEK Systems Consulting Contractor-US Foodservice Division Project Lead-Active Directory Migration, 6/05-12/05 Phoenix, AZ Migrated 23 divisional offices including, 18,000+ users from Microsoft Windows NT 4.0 to Windows 2003 Server Active Directory. This project required 75% travel. Active Directory specialist. Conducted numerous site conversions to Active Directory doing all network requirements and verifying results. Consolidated divisional servers to new server consolidation units running VMware ESX 3.0. Responsible for implementing new file and security structure. Trained local IT staff on Active Directory. Fully configure new servers in preparation for consolidation: Domain Controller, DNS, File Server, Print Server, Apps Server, Antivirus Server, Backup Server, and Mail Server. Verify and activate DHCP scope for each site in new single domain. Configure preferred DNS servers, forwarders, reverse lookup zones, global catalog, IP transports, site connectors, intra site transports, verify replication. Conduct extensive site discovery in preparation of site migration. Identify potential problem applications. Establish and set group permissions. Securely transfer user and group data. Train site IT support personnel on utilizing AD Users and Computers, printer installation, backup procedures, and drive mappings. Experienced in utilizing Delegation of Authority for site administrators. Implement new file structure utilizing Domain Local Groups to control access to data. Prepare documentation for all procedures done throughout the site migration. Gilbane Building Company Regional IT Manager, 6/99-5/05 Phoenix, AZ/Norcross, GA Manage Regional Information Systems for Western and Southeast regional offices. Produce and maintain regional IT budget. LAN/WAN planning and implementation for Regional office, District offices, jobsite offices and jobsite trailers. Implement regional backup plan. Configure and maintain all Servers and Workstations in the Southeast region. Install, maintain, and turn-up all network hardware including routers, switches and hubs. Set-up and maintain all voice, data and video conferencing equipment such as Nortel and Polycom. Supported Active Directory in the Southeast and Western regional, district and jobsite offices. Coordinate efforts with corporate engineering team to implement and maintain IT standards. Coordinate with contractors that perform infrastructure services such as copper and fiber installation. Assist with Regional, Corporate and Departmental yearly strategic planning. Research and implement new technologies that help to evolve Regional and Corporate policies by reviewing and implementing policies and procedures with internal departments and EIS. Successfully lowered the regional total cost of ownership by reducing costs with various process engineering techniques. Setting up and maintaining all technology at 23 locations and for 214 users. Education and Credentials Bachelor of Science Program in Information Science Johnson and Wales University, Providence, RI Certifications MCP + Internet, Citrix Certified Administrator Selected Technical Proficiencies (Additional details on request)

$85.00 /hr
0 hours

Aryo G.

Aryo G.

VAS and Application Enginneer

Indonesia - Tests: 8 - Portfolio: 7

Over past year I work as Senior VAS (Value Added Services) Engineer my specialty in SMS and MMS also I am good in develop web application using PHP and CodeIgniter. Beside support application I also have experience in integrated systems from Operating systems ( UNIX/Linux/Windows), network (routing/switching, LB, Firewall), database (Oracle,MySQL,MS-SQL), webservices (SOAP/XML), virtualization (VM-WARE), cloud technology to support application it self.

Groups: BigCommerce

$11.11 /hr
0 hours

Pavan V.

Pavan V.

Experienced Network Engineer in Security, Routing and Switching

United Kingdom - Tests: 1

Network Engineer with 5+ years of experience in Planning, Designing, Implementing and supporting diverse Networking Topologies, Standards and Vendors in an Enterprise class Data Centres. My areas of expertise include Routing, Switching and Security aspects surrounding small to medium and Large Enterprise Networks. I am CCNA, CCNP and F5 Certified and currently working towards my CCIE R&S track. I am proficient in building and deploying Firewalls(ASA/PIX/Sonicwalls/Junipers), L2/L3 Switches, Routers(Cisco 1800 till 6500, Cisco Nexus Physical and Virtual, and Force 10's), Edge connectivity, Load balancing (CSM/CSS/F5/Netscalers/Stingrays) and WAF's.

$27.78 /hr
0 hours

Jayat Markan

Jayat Markan

Expert IT professional

India - Tests: 2

I'am an experienced IT professional with more than 7 years of continuous IT experience. I've worked in numerous capacities in an IT organisation in my work profile till date. From a core technical responsibilities like server administration, web and application server infrastructure management; I also have a great deal of experience in technical writing, documentation, research activities, etc. I'am currently working as a Full Time Employee (FTE) in a renowned travel company and have a very relaxed lifestyle. Hence, I will be able to focus and devote with my complete energy to any of the projects assigned to me on this portal. In addition, my hourly rates for the project work are also pretty competitive. So do consider my profile for any projects in the areas I have listed below (categories of interest) and I assure that I'll do my best to finish off your work in time.

$5.00 /hr
0 hours