Network Security Developers & Programmers

Showing 665 freelancers

Network Security Developers & Programmers

Showing 665 freelancers

  • Linux administrator, Windows admin, DBA, Network security

    5 years of network administration in a highly complex university environment, experience with diverse networking equipment (mostly HP, 3COM, CISCO). I also have extensive experience with Sonicwall, Smoothwall, PKI infrastructure design and eToken integration. Network design for small and medium … more

    5 years of network administration in a highly complex university environment, experience with diverse networking equipment (mostly HP, 3COM, CISCO). I also have extensive experience with Sonicwall, Smoothwall, PKI infrastructure design and eToken integration. Network design for small and medium networks. Server administration including Windows (AD, MsSQL, DotNetNuke ) and Linux (Ubuntu, CentOS) based systems. As well as extensive database administration and development experience.  less

    windows-administration linux-system-administration network-security network-administration vmware-esx sql 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 674 HOURS
    • MACEDONIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 7 TESTS
  • 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
  • Top Notch IT Consultant and Virtual Assistant

    My IT experience includes being a Network Engineer and Network Administrator for 4+ years, handling a range of devices: Cisco Routers and Cisco Switches, Juniper Firewalls, Checkpoint Firewalls, Linux-based Firewalls. I also have network troubleshooting skills for Linux and Windows … more

    My IT experience includes being a Network Engineer and Network Administrator for 4+ years, handling a range of devices: Cisco Routers and Cisco Switches, Juniper Firewalls, Checkpoint Firewalls, Linux-based Firewalls. I also have network troubleshooting skills for Linux and Windows servers as well. I am very knowledgeable in TCP/IP and IT Networking. In the last 7 years, I have been engaged in several virtual assistant tasks in my line of work. This includes administrative tasks such as making the minutes of our meetings and transcribing them, typing documentation reports, doing web research and data-entry, as well as data-mining related info from the Internet and putting it on a website, spreadsheet or a word document file. I have done advertisement postings in the web, e-mail and social media for marketing several of my businesses using catchy phrases and subject lines. I am a fast learner and very willing to be trained for new skills not included above as required for your task at hand. This all has been applied in my Information Technology work, my businesses and my career in sales and customer service.  less

    cisco-routers cisco-asa cisco-ios tcp-ip network-administration firewalls linux-system-administration network-security vpn wireless-network-implementation 00 more less
    • $6.67 HOURLY RATE
    • 5.0
    • 0 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 8 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
  • Network/ System Administrator

    Customer-focused, Cisco, Juniper, ITIL-F, and Microsoft certified IT professional. Expert in leading and contributing to projects designed to enhance system functionality and end-user productivity. Persistence, personal integrity, ethical, maintains a high degree of confidentiality. Have hands on experience on: Cisco … more

    Customer-focused, Cisco, Juniper, ITIL-F, and Microsoft certified IT professional. Expert in leading and contributing to projects designed to enhance system functionality and end-user productivity. Persistence, personal integrity, ethical, maintains a high degree of confidentiality. Have hands on experience on: Cisco Juniper SonicWall pfSense HP & Dell Switches WatchGuard Websense Blue Coat Citrix Trend Micro Neat Suite GFI Altiris CMS Fluke Network Inspector Certification: CCNA JNCIA ITIL-F MCP  less

    cisco-routers firewalls pfsense tcp-ip network-administration network-security cisco-asa cisco-pix cisco-ios ospf juniper-routers 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 65 HOURS
    • CANADA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
  • Web Devloper and Certified Ethical hacker

    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. For you all who read my profile, never think yourself safe anytime. Just follow … 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. For you all who read my profile, never think yourself safe anytime. Just follow rules of security and then you can prevent hackers most of the time. As a security specialist you need to believe someone. That is very important. I give guaranty you about this. You never complain about my honestly. Also last thing I always tell reasonable cost for my client. So one thing you remember less cost may solve problem for sometime but never permanent. I want to provide you permanent solution. " I will ensure you 100% satisfaction with my development and hacking removal task. I work with below fields: - 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, webscarab - DDoS attack mitigation - Comment spams (blog, forum, contact form) As well as I do development work with different cms and php. From, Barkot  less

    asp php codeigniter cakephp database-administration joomla joomla-fabrik wordpress jquery-mobile jquery virus-removal network-security 00 more less
    • $5.56 HOURLY RATE
    • 5.0
    • 634 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 5 TESTS
  • Quality Assurance Engineer | Websites | Mobile Apps | Desktop Apps

    I am having 2+ year experience as QA Engineer and I am having expertise in Functional,UI testing,Exploratory testing,Usability testing for website, mobile applications as well as desktop application. I can develop test cases of better quality and … more

    I am having 2+ year experience as QA Engineer and I am having expertise in Functional,UI testing,Exploratory testing,Usability testing for website, mobile applications as well as desktop application. I can develop test cases of better quality and also execute the test cases written by me or any one else. I can give my clients well documented bugs with clear description and Screenshot/Video for more clarification. I am also having sound knowledge of Automation tools like Selenium,QTP,etc. I am also well versed in SQL and Oracle so can work on Back-end projects as well. I am Oracle OCP Certified DBA as well. I am working in Agile model, so I have experience with Scrum,Sprints and all other agile terminologies. I also have experience of working with two well-known bug tracking tools (Bugzilla and JIRA). Following is list of devices I owned along with browsers & OSes: 1. Dell Inspiron 15R(OS: Windows 7, Browsers: Chrome,Firefox,IE,Safari,Opera) 2. Dell Inspiron 15R(OS: Windows XP, Browsers: Chrome,Firefox,IE,Safari,Opera) 3. MacBook Pro: (OS: MAC OSX, Browsers: Safari,Chrome,Firefox) 4. Samsung Galaxy Grand Duos (OS- Android 4.2.2 - Jelly Bean, Browsers: Chrome,Firefox,Opera). I had also worked on websites,facebook games' test cycles on utest as my freelancing work. I have worked on many freelancing projects on utest including all kind of website testing, social media games,mobile application testing,windows base apps and many more.  less

    functional-testing database-testing unit-testing black-box-testing game-testing regression-testing usability-testing performance-testing network-security oracle-database-administration automated-testing 00 more less
    • $11.11 HOURLY RATE
    • 4.7
    • 129 HOURS
    • INDIA
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 2 TESTS
  • RHEL / CentOS System Admin, AWS, WHM/Cpanel

    Handling unmanaged VPS, Dedicated Server with core console (Terminal). -Giving sites maximum Uptime. -Implementing new policy and maintain backup and backend server. -Prevent from websites hack (SQL Injection, FTP bypass, Brute force on SSH Tunnel ) -Maintain All site on Nginx … more

    Handling unmanaged VPS, Dedicated Server with core console (Terminal). -Giving sites maximum Uptime. -Implementing new policy and maintain backup and backend server. -Prevent from websites hack (SQL Injection, FTP bypass, Brute force on SSH Tunnel ) -Maintain All site on Nginx and Kloxo with limited sync time. -Manage shop cart Zencard and Magento site on servers and make server compatible . Penetration Testing: -Client side attacks - Server side attacks - Web applications vulnerability scans - Custom exploiting techniques - Social engineering  less

    linux-system-administration penetration-testing mail-server-implementation mysql dns squid security network-security apache-administration node.js subversion nginx centos iptables ssh ubuntu 00 more less
    • $8.96 HOURLY RATE
    • 5.0
    • 24 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 3 TESTS
  • Network Security Engineer (CCIE-Security)

    4+ years of experience in Networking, Firewalls, VPN & Web Security Network Security and R&S - Installation, administration and Troubleshooting Devices - Cisco Routers, Switches, Firewalls(ASA), Zone Based Firewalls(Router Firewalls) QOS Troubleshooting Dynamic Routing Protocols VPN - Setup and Troubleshooting - Malware … more

    4+ years of experience in Networking, Firewalls, VPN & Web Security Network Security and R&S - Installation, administration and Troubleshooting Devices - Cisco Routers, Switches, Firewalls(ASA), Zone Based Firewalls(Router Firewalls) QOS Troubleshooting Dynamic Routing Protocols VPN - Setup and Troubleshooting - Malware Removal - Restoring hacked websites - Network Maintenance/troubleshooting - Network security hardening - Wordpress Hardening/Migrations/Hosting/Optimizations - Website Monitoring & website security hardening  less

    cisco-routers firewalls network-administration computer-networking network-security network-planning cisco-ios dsl-troubleshooting security ipsec vpn ospf bgp 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 41 HOURS
    • INDIA
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 8 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:
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