Network Security Developers & Programmers

Showing 96 freelancers

Network Security Developers & Programmers

Showing 96 freelancers

  • Windows System Admin, MCSE, CentOS, OpenGTS, OpenERP CCNA Security Exp

    Over the last 10 years, providing service and online trainings on IT fields such as LAN, Wireless, Windows Administration, Linux, setup ERPs. I also very well in website setup for small companies.  B.Tech – CSE and Diploma in Computer Engineering … more

    Over the last 10 years, providing service and online trainings on IT fields such as LAN, Wireless, Windows Administration, Linux, setup ERPs. I also very well in website setup for small companies.  B.Tech – CSE and Diploma in Computer Engineering with over 15 years of fruitful & extensive experience in infrastructure management entailing system administration, Security Admin, handling networks, managing user accounts, installing resource domain server, troubleshooting of LAN/WAN Network, Remote Installation Services.  Currently associate with Technocrats, Yamunanagar as IT Consultant and Freelancer IT Consultant.  Extensive Knowledge of Windows 2008/2003, Checkpoint NG/AI and NGX R60, SQL Server 2000, MS Exchange, Symantec Antivirus product, Lotus Notes 6.5, SCO Unix, Redhat Linux, MS Web Server IIS with CCNA Certification.  Proficient in monitoring network performance, commissioning activities, upgrading software’s. Secured exposure in service support activities.  Acquired wide exposure in handling matters related to installing software, diagnosing computer related malfunctions, troubleshooting & maintenance of the entire system.  Well versed with router configuration & maintenance of major server & network systems, solving problems related to Mail/ ISA/ Web Servers, implementing TCP/IP core networking services.  Excellent communication and interpersonal skills with proven abilities in resolving complex networking, hardware and software related issues.  less

    computer-networking windows-administration linux-system-administration cisco-routers network-security 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 5 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Ethical Hacker and Penetration Tester

    I bring 15 years of experience in designing, configuring and installing corporate and production automotive and manufacturing networks. My broad focus has been network security, with a specialty in penetration testing and remediation. I have designed large scale firewall projects … more

    I bring 15 years of experience in designing, configuring and installing corporate and production automotive and manufacturing networks. My broad focus has been network security, with a specialty in penetration testing and remediation. I have designed large scale firewall projects for the automotive Big Three, Fortune 500 companies such as American Express, Delphi and Blue Cross/Blue Shield. I have participated in data recovery and encryption services for medical, automotive, financial and legal entities. Recently I have helped individuals retain their privacy by offering one-on-one services to find, remove and protect sensitive personal information residing on the Internet. I hold several industry standard certifications from Cisco, Checkpoint, Stonesoft and Novell.  less

    penetration-testing electrical-engineering vpn network-security cisco-ios circuit-design robotics 00 more less
    • $50.00 HOURLY RATE
    • 4.4
    • 101 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 17 TESTS
  • System Engineer - Administrator

    Over 14 years of experience architecting, deploying, and upgrading systems, including hardware, software, networks, databases, servers, mobile devices, and peripheral equipment. Extensive knowledge of security and disaster recovery applications to ensure complete protection. Strong background spearheading multi-platform solutions to optimize … more

    Over 14 years of experience architecting, deploying, and upgrading systems, including hardware, software, networks, databases, servers, mobile devices, and peripheral equipment. Extensive knowledge of security and disaster recovery applications to ensure complete protection. Strong background spearheading multi-platform solutions to optimize business goals. Excellent communication skills. Able to assess and resolve client issues quickly. Superior ability to manage multiple projects simultaneously in deadline-driven environments. Microsoft Certified Systems Engineer and Microsoft Certified Systems Administrator.  less

    windows-administration microsoft-exchange-server virtualization network-administration network-security network-planning 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 8 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • Technical Lead with 9+ Yrs of Servers/Cloud/Network/Hosting Experience

    I am having 9+ yrs of experience in IT Industry, working as a Technical Lead with a large software development company.I am managing a complex server structure with more then 300 dedicated servers based on different hosting providers, I … more

    I am having 9+ yrs of experience in IT Industry, working as a Technical Lead with a large software development company.I am managing a complex server structure with more then 300 dedicated servers based on different hosting providers, I am managing our Internal client servers , Exchange Server , MS SQL Servers ( All Editions) , Backup Servers , Cisco higher end routers , Firewalls and having good command in all desktop variants, All Linux edition Red-hat Enterprise , Ubuntu , Cent OS are the another part of my job profile. In terms of network security i am managing more then 1500 Client Pc's with all security implement + having different Anti-virus client-server editions, Anti-Trojans to managed for the company. From last 3 years I have start working on the AWS Clouds + Rack-space Cloud hosting as my profile is having almost all the required technical skills. here is the available list of my current profile Exeperience with almost all hosting providers , IE - Rackspace , Verio , Godaddy , 1And1 , BigRock , Hostmysite , the planet etc... - Cloud Administration - VM's , ESXI Management / Setup - AWS Administration - Windows Server 2003-2012, - All kind of Hosting Experience ( Windows, Linux, Cloud) - DHCP and DNS, - Active Directory DS, CS, FS, LDS, RMS, - Exchange Server from 2003 to 2013, - J-Boss Server , Flash Media Server , Live Streaming Setup - Apache , PHP , MYSQL - Print Server, - Remote Access (VPN, Direct Access), - Remote Desktop Services, - Web Server IIS (All Versions), - Windows Deployment Services, - Windows from XP to Windows 8, - SQL Servers 200- 2012 - Networking, Firewalls, Routers.. I believe in my skills and i believe to complete all the required tasks in time and with all satisfaction.  less

    rackspace-cloudservers amazon-ec2 windows-8-administration windows-7-administration iis windows-administration network-administration vmware-administration network-security 00 more less
    • $16.67 HOURLY RATE
    • 4.8
    • 573 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Security expert- ITechsec.Ethical hacker. Penetration tester.

    If I want to introduce myself in one word , " I am a warrior against hackers or evil men do want waste your online business or reputation. I will ensure you 100% satisfaction with my development and hacking removal task. I … more

    If I want to introduce myself in one word , " I am a warrior against hackers or evil men do want waste your online business or reputation. I will ensure you 100% satisfaction with my development and hacking removal task. I work with below fields: -Penetration Testing - Joomla/Wordpress/osCommerce/Magento/Drupal and all CMS/forum devlopment. - Virus/Rootkit/Backdoors detection and removal - Web pages monitoring - Hacking recovery (shared hosting plans to dedicated servers) - Vulnerability patch - Audit - 24/7 Server Security Management - Full security audit (Linux dedicated/VPS servers) - System/Network Monitoring - Security updates/upgrades and hardening - Perl/CGI et PHP scripts audit -SQL Injection, XSS Cross site scripting - Havij, burp suite, sqlmap, web scarab - DDoS attack mitigation - Comment spams (blog, forum, contact form) As well as I do development work with different cms and php. Best regards, ASHRAFUZZAMAN .  less

    automotive-engineering network-security wireless-security security database-administration computer-networking penetration-testing mysql php data-entry 00 more less
    • $27.78 HOURLY RATE
    • 4.9
    • 4 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 3 TESTS
  • 6 yrs experience in Sharpoint, C#.net, SQLserve, jquery, php, Java,SEO

    Over the last 6 years, I have developed and designed a wide range of websites using HTML, SharePoint 2010 2013, ASP.NET, Photshop, WordPress, Joomla, Drupal, Coraldraw, WebDesiging, VB.NET, Crystal Report, Drop-things, jscript, illustrator, SEO, Dreamweaver, CSS and SQL … more

    Over the last 6 years, I have developed and designed a wide range of websites using HTML, SharePoint 2010 2013, ASP.NET, Photshop, WordPress, Joomla, Drupal, Coraldraw, WebDesiging, VB.NET, Crystal Report, Drop-things, jscript, illustrator, SEO, Dreamweaver, CSS and SQL SERVER including sites for start up companies, social networking, eCommerce, corporate,MLM with social networking,lead generation etc.. My core competency lies in complete end-end management of a new website designing and website development project, I can work on server maintenance, hosting and cloud-computing technology, I am seeking opportunities to build websites from the ground up for you or your business. I am CEH (Certified Ethical Hacker) and ECSA (Security Analyst). so i can code in more secure manner.  less

    sql html css php jquery corel-draw asp.net-mvc wordpress asp.net penetration-testing network-security sharepoint-designer microsoft-sharepoint-administration microsoft-sharepoint-development joomla-fabrik jquery-mobile 00 more less
    • $20.99 HOURLY RATE
    • 4.8
    • 318 HOURS
    • INDIA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 11 TESTS
    GROUPS:
  • Consultant

    Previous owner of an I.T. consulting firm (5 years), plenty of experience in project management, teams of 4 - 10. I also have 9 years of experience managing servers and networks. Graduated with technical degree in computer science and engineering (4 year degree). Very well versed in Windows and Unix networking.

    network-administration network-security 00 more less
    • $17.78 HOURLY RATE
    • 5.0
    • 2783 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Network Administration, System Administration (Windows/Linux), VMware

    I am a Cisco Certified Network Engineer with more than 4 years hands-on experience on Cisco equipments like Cisco layer-2/layer-3 switches , routers, ASA firewall & PIX. Deploy and monitoring Linux based & Windows based services like HTTP,FTP,SAMBA,CACTI,NAGIOS … more

    I am a Cisco Certified Network Engineer with more than 4 years hands-on experience on Cisco equipments like Cisco layer-2/layer-3 switches , routers, ASA firewall & PIX. Deploy and monitoring Linux based & Windows based services like HTTP,FTP,SAMBA,CACTI,NAGIOS,SQUID, Linux Based Email Servers & Solarwinds Familiar with products of other networking equipment manufacturing companies like D-link, Netgear, Zyxel, MikroTik etc. Currently maintain a LAN and WAN network of at least 3000+ users with 3 remote branches and seeking for an opportunity to achieve better.  less

    network-administration network-security network-planning linux-system-administration windows-administration cisco-routers cisco-asa internet-research postfix vmware-esx 00 more less
    • $5.56 HOURLY RATE
    • 5.0
    • 85 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Mr.

     Design and implementation of Vmware ESX and ESXi Server/ Vsphere and other virtual technologies (VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.)  Performs the tasks of designing Advanced Security & Management Solutions.  Design and implementation of DNS Servers, Unbound DNS … more

     Design and implementation of Vmware ESX and ESXi Server/ Vsphere and other virtual technologies (VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.)  Performs the tasks of designing Advanced Security & Management Solutions.  Design and implementation of DNS Servers, Unbound DNS Server, Kerio Mail Servers, Send Mail Server, TACACS Server, CRM System, DOCSIS Cable Modem Termination System, Incognito DHCP Broadband Command Centre for CMTS.  Bandwidth management for Optical Fibre customers on Routers and Switches, Monitoring of links by using network performance monitoring tools such as Cacti, Manage Engine Netflow Analyzer, Solar Winds, Smonitor, Nagios etc  Implementation of routed & routing protocols, like OSPF, BGP, EIGRP in live environment  Worked on Cisco 2950, 2960, 3550, 3560, 3750, 6509 switches and 2500, 2600, 2800, 3600, 3700, 7200,  7600 series Routers in real environment approx. 500 Hours.  Implementation of (VLANs, VTP, RSTP, MSTP, ETHERCHANNEL, INTER VLAN ROUTING, HSRP, PRIVATE VLAN, SWITCH PORT SECURITY)  Design and implementation of VPNs ( Site-Site, Remote Access, DMVPN, IPSec over GRE, Get Vpn)  Design and implementation of MPLS VPNs  Management of CAR on routers and switches by rate limited feature  Design and implementation of (AAA with Local & Remote ACS Server, 802.1 x authentications, Proxy Authentication).  Design and Implementation of Microsoft Active Directory 2003 based on Microsoft best practices. Implementation of Anti virus Servers (Kaspersky, Sophos) in a medium sized company  Design and Implement SAMBA server using LDAP authentication for LAN users.  Design and Implementation of Send Mail Servers, MS Exchange e Server 2003/2007 based on Microsoft best practices.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos, Red Hat OS.  Implementation of different Network Performance monitoring tools such as (Cacti, Net Flow, Manage Engine OpUtils, SMonitor, Solar Winds, Nagios, JFF) to monitor WAN devices and different servers to optimize network resources and traffic.  Design and implementation of SIP on cisco voice gateways.  Design and implementation of MPLS VPNs  Support and Maintain Cisco Core Routers 7206VXR. 7600 Series, 2800 Series, small business series RV042, RV082 for vpn connectivity.  Supporting and Managing HEC Cisco Core and Edge Switching network.  Design and Implements SQUID 2.4, 3.1 Proxy Server based on Centos for differnet clients.  Deploy cacti, solar wind, cisco works Monitoring System to monitor Network and Bandwidth Usage.  Management of CAR on routers and switches by rate limited feature.  Design of Networking Infrastructure and resource sharing solution. The project covered the design of networking system, Servers, and applications in Windows 2003 environments. The project used TCP/IP as Network protocols and Star Topology.  Conduct Surveys on client sites and create project proposal and layouts for networks deployment and implementation.  Design and Implementation of BGP/MPLS, Traffic Engineering, Policy Based Routing PBR, Route Filtering, Redistribution, Route Summarization.  Catalyst IOS based Switches, VTP, STP, RSTP, Trunking, VLANs,  Layer 3 Switches, Logical Etherchannels, MLS.  IPSec, VPNs, AAA Model (RADIUS, TACACS+, Kerberos), Cisco PIX / ASA  Firewall, VPN Client, Juniper Firewall SSG5, SSG20  Design and Implementation of Incognito DHCP Server for assigning bandwidth to cable modem customers.  Media: Ethernet, FastEthernet, GigabitEthernet, FDDI, CDDI, Token Ring, ATM LAN Emulation.  Network Analyzers: Back Track 5 , Ethereal, Paketyzer, Radcom, Etherpeek.  Load Generator: Spirent Smart Bits, iperf, IPTraffic.  Leased lines 64k - 155Mb (PPP / HDLC), Channelized lines (E1 ), Fibre Optic Circuits, Frame Relay, xDSL, Load Balancing, Multi Homing, Satellite links. I also have extensive experience in following  Linux & Windows Integration in TCP environments  Expertise Linux Redhat, Ubuntu, SUSE, Centos, Debian, Slackware and Solaris Systems  Expertise in SQUID Proxy server. DNS Server, DHCP, Send Mail, Kerio Mail Server.  VMware ESX Server, Virtual Center, Distributed Resource Scheduling (DRS), VMware Data Backup , VMware Converter, VMotion, SVMotion, VHA, SVHA, FT, DRS, Power Management etc.  less

    asterisk linux-system-administration dns mail-server-implementation squid pfsense dhcp network-security solaris-administration windows-administration microsoft-exchange-server samba cisco-asa cisco-routers juniper-routers vpn mpls vmware-esx sendmail 00 more less
    • $11.11 HOURLY RATE
    • 4.5
    • 78 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • IT Professional

    About 5 years experienced and motivated Network Engineer accomplished in delivering secure resilient systems on time and budget to meet business needs. an adaptable and efficient team player with excellent communication skills at all levels. I’m looking for a … more

    About 5 years experienced and motivated Network Engineer accomplished in delivering secure resilient systems on time and budget to meet business needs. an adaptable and efficient team player with excellent communication skills at all levels. I’m looking for a role where I can develop my skills further, researching new technologies, reveling in new challenges and developing on my company. Full Profile: www.soroush.it http://au.linkedin.com/in/soroushj/ Certifications: -Microsoft Certified Professional -Microsoft Certified System Administrator -Microsoft Certified System Engineer -Microsoft Certified Technology Specialist -Strategic management Methods & Solutions -Management of Technology (MOT) & The Key to Economic Growth -Data mining Application In Finance & Banking & Insurance -Data mining Application in Customer Relationship Management (CRM) -Data mining Advanced in Predictive Modeling & Unsupervised Learning -Knowledge Management Implementation -Knowledge Management Implementation & KM Advisor -EFQM Knowledge Management Framework Auditor -Knowledge Management Methods & Consulting -Certificate of Technical & Vocational Skill for System Operation -Digital Content Editing And Documentation Experience: *SAP Center-Dina Food Holding-2011 to Present *IT Administrator-Toranj Arya Inst.-2007 to 2012 *IT Consultant-Industrial Ministry-2008 to 2010 *System Admin-Naghme RASA Inst.-2005 to 2007  less

    computer-networking network-administration network-security tcp-ip sap sap-basis sap-netweaver data-mining strategic-planning windows-administration microsoft-hyper-v adobe-photoshop video-editing photography graphic-design persian translation-english-persian 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 40 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
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