Security Freelancers

Showing 355 freelancers

Security Freelancers

Showing 355 freelancers

  • Information Security Manager

    Career security management professional whose qualifications include a degree in Computer Engineering; ISO27001 Probationary Auditor, Certified Ethical Hacker, MCSE, and MCSA:Messaging designations; and detailed knowledge of security standards, technologies and best practices. Seven years of protecting information with diverse … more

    Career security management professional whose qualifications include a degree in Computer Engineering; ISO27001 Probationary Auditor, Certified Ethical Hacker, MCSE, and MCSA:Messaging designations; and detailed knowledge of security standards, technologies and best practices. Seven years of protecting information with diverse experience and overall understanding in business governance, security operations and management, network infrastructure, systems engineering, and research and development.  less

    security 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 58 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Systems Administrator

    Software: Linux – Practical experience. Started to study Linux kerne from Gentoo. I've worked at different tasks from simple to complex. Write different articles, technical documentation, video lessons for Gentoo Linux. MS Windows 9x/NT/2k/XP/2k3 – Small experience … more

    Software: Linux – Practical experience. Started to study Linux kerne from Gentoo. I've worked at different tasks from simple to complex. Write different articles, technical documentation, video lessons for Gentoo Linux. MS Windows 9x/NT/2k/XP/2k3 – Small experience with servers. Wrote different programs. FreeBSD/OpenBSD/MacOS – Have good experience Used: Control panels (WHM/cPanel, Plesk, DirectAdmin, Webmin, ISPConfig etc.) Monitorig (Cacti, Nagious, Zabbix, logwatch, logsentry etc.) Virtual Private Networks (OpenVPN, PPTP) Backup systes (rsync, duplicity, amanda) Database management systems (Oracle, Sybase, MySQL, MSSQL Server etc.) Firewalls (iptables, ipchains, ipfw) Proxy servers (squid+squint+sqstat+rejik) File sharing (Samba, NFS etc.) Webservers (Apache, LightHTTPD, nginx, Tomcat) FTP server (vsftpd, proftpd, wu-ftpd) Security: Wrote articles, and started to study security of web-applications. Love to study computer-programs vulnerabilities. Studied PHP/ASP/Perl source injection, SQL injection, XSS (Cross Site Scripting), HTTP Response Splitting (beginner level). Wrote some articles. Computer languages: Programmed different scripts/utilities in C/C++, Bash, Delphi, C#, Java/JSP/JavaScript, PHP, SQL Worked with: Apache, Backup, Bash, BIND, Cacti, CentOS, cPanel, CSF, Debian, DirectAdmin, Enterprise, Exim, Fedora, FreeBSD, Gentoo, GPG, iptables, Jail, Java, JDK, LAMP, Liferay, Linux, logwatch, Monitoring, MySQL, mysqldump, nginx, OpenBSD, OpenSSH, OpenSSL, OpenVPN, Performance, phpMyAdmin, Plesk, PostgreSQL, Production, ProFTPd, PureFTPd, rkhunter, rsync, Samba, screen, Security, Server, SNMP, snmpd, Squid, sshfs, stunnel, sysctl, Tomcat, Ubuntu, VirtualBox, VMware, VMWare, VNC, VPN, VPS, vsFTPd, Webmin, wget, Zabbix, zyxBackup  less

    virtualization security 00 more less
    • $3.33 HOURLY RATE
    • 4.8
    • 210 HOURS
    • MOLDOVA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 9 TESTS
  • Network Engineer

    Fast learner, fast worker, quality contractor. Can administer the network, build scalable network infrastructure, implement various network services. I have experience in network design and security tuning, always available to discuss new opportunities. Excellence in troubleshooting networking problems Experience with … more

    Fast learner, fast worker, quality contractor. Can administer the network, build scalable network infrastructure, implement various network services. I have experience in network design and security tuning, always available to discuss new opportunities. Excellence in troubleshooting networking problems Experience with: Cisco 800 Series ISR, Cisco 1800/1900, Cisco 2800/2900 Series ISR, 3900 Series ISR Cisco Catalyst 2960, 3550, 3560, 3750, 4500, SMB-300 Cisco ASA and Cisco PIX firewalls FortiWeb web firewall Juniper Devices: SRX 240H-Poe, SRX 1400 and SRX 3400 firewalls, Juniper EX 2200, 4200 and 4500 switches Security Technology VPNs (Site-to-Site, IPSec, Remote Access, SSL, WebVPN, GET VPN, DMVPN, ezVPN), Cryptography, AAA, Radius, TACACS+, ACL, NBAR, IOS Firewall, IOS Security, 802.1x, CBAC, Cisco Secure ACS, Cisco VPN Client, Cisco MARS. Routing Static Routing, IGRP, EIGRP, OSPF, PBR, Route Filtering, Redistribution, Summarization Features & Services IOS Features, HSRP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, DNS, HTTP Voice over IP Cisco Unified Communications Manager(CUCM), Call Manager Express (CME),  less

    cisco-routers cisco-ios vpn security 00 more less
    • $27.78 HOURLY RATE
    • 4.9
    • 36 HOURS
    • GEORGIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 5 TESTS
  • Security Professional

    Over the years of My Experience i have worked as Programmer with multiple languages then moved to be a system Admin for Linux and windows > RIght now i am a Application security Expert this giving me a power to understand … more

    Over the years of My Experience i have worked as Programmer with multiple languages then moved to be a system Admin for Linux and windows > RIght now i am a Application security Expert this giving me a power to understand the client need from Network Layer (Layer3) until the application Layer Layer 7.  less

    security network-administration linux-system-administration windows-administration firewalls 00 more less
    • $24.44 HOURLY RATE
    • 4.7
    • 3 HOURS
    • EGYPT
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • MCITP, MCSE, Virtualization, Network Engineer/Mangr, Writer

    Experienced Technology Leader, Implementation Manager, Change Agent and MCSE/MCITP. In-depth knowledge of IT systems and operations, project management, large-scale system implementations and information security with over twelve years with hands on experience as an Enterprise Administrator and Network Manager … more

    Experienced Technology Leader, Implementation Manager, Change Agent and MCSE/MCITP. In-depth knowledge of IT systems and operations, project management, large-scale system implementations and information security with over twelve years with hands on experience as an Enterprise Administrator and Network Manager in NT, 2000, 2003 and 2008 environments. Extensive experience in Server Virtualization including VMware and Hyper-V integrated with HP and EMC SANs. Practiced understanding of Exchange, Lync Server 2010, Fortigate UTM devices, Active Directory, PKI and DFS. Five years of experience as a corporate Microsoft/Certification trainer and serving as an MCSE/CCNAinstructor for technical schools, colleges and corporations such as AT&T; and Comcast Cable. I have created course curriculum for two online schools. I am extremely proficient in Server 2012 and 2008, including Server Core edition, Hyper-V, Fortinet, VMware, Procurve, HP and EMC SANs, Active Directory, Exchange, SQL, Procurve switches and many other technologies. I have been highly involved in server virtualization for seven years and am proficient in both VMware and Microsoft Hyper-V. I am also a professional writer and have contributed to several white papers and authored published articles in professional journals. Have also written and reviewed test questions for IT professional certifications. I am looking for other opportunities to supplement my work load. My Microsoft Profile can be accessed by this link: http://www.mcpvirtualbusinesscard.com/VBCServer/brad.rudisail/profile For more information on me go to www.bradinthecloud.com  less

    virtualization security technical-documentation microsoft-active-directory technical-writing white-paper-writing windows-administration 00 more less
    • $36.94 HOURLY RATE
    • 4.8
    • 1775 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    GROUPS:
  • Security Expert & Web developer

    i am working with wordpress,joomla mostly. & also i am good in security. i have successfully worked with joomla & wordpress components & plugins, setting up websites perfectly. i work as security analyst for websites.i can easily clean malware & fix issues … more

    i am working with wordpress,joomla mostly. & also i am good in security. i have successfully worked with joomla & wordpress components & plugins, setting up websites perfectly. i work as security analyst for websites.i can easily clean malware & fix issues regarding security.please let me know, how can we solve the issue caused to you, i will deliver the work within given time. i have deal with malware,spam ,black hat spam, redirection, htaccess, php decode,javascript malwares,iframes etc.. Great satisfaction, Guaranteed. I have successfully eradicated malware and secured maximum platforms: - OsCommerce - Cre Loaded - Open Cart - PrestaShop - Magento - Wordpress - Joomla - custom content management systems - PHPBB - vBulletin I provide quality work at a fair rate. I always find the best solution for my employers.  less

    css mysql web-design website-development facebook-marketing security network-security 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 27 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 7 TESTS
  • Wordpress Developer, Webmaster, Sytem Admin, Security Consultant

    I've been in the web development field for more than 4 years, when I started developing PHP/MySQL applications for a local company. I've worked on a variety of applications. Over the last 4 years I've dedicated … more

    I've been in the web development field for more than 4 years, when I started developing PHP/MySQL applications for a local company. I've worked on a variety of applications. Over the last 4 years I've dedicated myself to work with Wordpress, so I'm capable of creating complete Wordpress sites from scratch, that include customized code (writing modules), convert/create themes, SEO, Social Media Integration and Hardening. I also have worked on Windows and Linux servers, performing installations / configurations / hardening and have some experience in the following areas: SQL, PHP, MySQL, XHTML, CSS.  less

    wordpress seo xhtml css security php linux-system-administration 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 1867 HOURS
    • COLOMBIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 3 TESTS
  • Lifelong Writer, Sky-High Aspirations

    Writing is in my blood. I love to write everything from prose to poetry to screenplays and much more. My passion is film, I'm an avid screenwriter and huge movie nerd. I've moved around a bunch since high … more

    Writing is in my blood. I love to write everything from prose to poetry to screenplays and much more. My passion is film, I'm an avid screenwriter and huge movie nerd. I've moved around a bunch since high school, having been in the Marines and living in four different homes in the last five years. I've been all over the Mid-Atlantic. I've worked office/admin, security, food service, warehouse, you name it. I'm eager to contribute to any and all projects you may have. Never hesitate to say "hi."  less

    security network-security computer-repair 00 more less
    • $13.89 HOURLY RATE
    • 5.0
    • 0 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • QA, Quality Assurance, Software Testing, Product testing, BETA, UAT, M

    We are specialist Independent QA/Testing consultancy company propelled by a team of bright, efficient & committed individuals, having acquired their professional acumen from the India's premier technological institutes and based out in National Capital Region of India. We have … more

    We are specialist Independent QA/Testing consultancy company propelled by a team of bright, efficient & committed individuals, having acquired their professional acumen from the India's premier technological institutes and based out in National Capital Region of India. We have built strong practices and cover industry verticals like financial services, telecom, healthcare, SCM, Mobile, network security, travel, E-commerce, manufacturing and retail. Our testing team with diverse experience brings an enviable breadth and depth of knowledge to every project. Requirements are rapidly understood and required testing is engineered with precision, often with the added benefit of reducing your time to production/market. Getting things right first time enables us to offer a warranty with every project. Our company is equipped with the caliber & capability to develop a variety of software products to suit the clients' requirements and capable of offering the complete testing solutions (that include test strategy, test design, test cases development, test execution, QA coordination, support for UAT, alpha and BETA). We are pool of people having experience from 2-11 years. And testing center is functioning in Noida, India. And easily accessible 24x7.  less

    software-qa-testing software-testing database-modeling database-testing security 00 more less
    • $8.89 HOURLY RATE
    • 4.3
    • 1641 HOURS
    • INDIA
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Computer Science / Information Security / Technical Support

    Achieving excellence in the work I perform to the best of me and using all the knowledge acquired in the areas of Information Security, Server Administrator in Windows environment, risk management and others

    security windows-administration windows-nt-administration 00 more less
    • $13.33 HOURLY RATE
    • 5.0
    • 34 HOURS
    • VENEZUELA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 10 TESTS
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