Cryptography Freelancers

Showing 37 freelancers

Cryptography Freelancers

Showing 37 freelancers

  • Delphi developer

    I believe that freelancing is the best way to gather experience and improve one's skills, while giving the most flexibility to both workers and employers. I have developed in Delphi (versions 5,6,7 to XE4), C++, PHP, SQL … more

    I believe that freelancing is the best way to gather experience and improve one's skills, while giving the most flexibility to both workers and employers. I have developed in Delphi (versions 5,6,7 to XE4), C++, PHP, SQL and others. Over 4 years, I was responsible for managing computer and paper based examinations at the British Council in Bulgaria and writing software for the above. This has taught me the importance of keeping to schedules and deadlines, team-working and communication. As a Computer Science graduate, I have very good knowledge of computer systems, OS, networking concepts, information security, etc. I also have some experience with GPS, Garmin products, Google Earth/Maps and cartography.  less

    delphi sql firebird mysql sqlite data-structures windows-app-development win32-app-development mac-os-app-development dropbox-api cryptography software-testing database-programming security microsoft-excel cartography amazon-web-services 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 1190 HOURS
    • BULGARIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 11 TESTS
  • Software Developer and Malware Researcher

    Areas of Specialization / Interest: Desktop Applications developed in: •Visual Basic.NET •C#.NET •C++ Algorithms in: •Visual Basic.NET •C#.NET •C++ •C •16 Bit Assembly Basic Python Malware Analyst Malware Researcher Encryption Enthusiast Software Protection and Licensing .NET Reverse … more

    Areas of Specialization / Interest: Desktop Applications developed in: •Visual Basic.NET •C#.NET •C++ Algorithms in: •Visual Basic.NET •C#.NET •C++ •C •16 Bit Assembly Basic Python Malware Analyst Malware Researcher Encryption Enthusiast Software Protection and Licensing .NET Reverse Engineering Engineering Applications •Altera Quartus •MultiSIM Circuit Simulation •ARES PCB Design •ISIS Circuit Simulation •MatLab (Matrix Laboratory) •MPLab Website: http://messycodes.somee.com/ LinkedIn: http://ph.linkedin.com/pub/nathu-nandwani/69/a46/1a4/  less

    c c# microsoft-visual-basic virus-removal cryptography assembly-language circuit-design internet-research teaching-algebra calculus teaching-physics translation-english-filipino translation-filipino-english algorithms mcafee-virusscan network-security reverse-engineering 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 44 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 14 PORTFOLIO ITEMS
    • 16 TESTS
  • Web Development & Algorithm Design

    Over the last 3 years, I've been developing web applications, mostly using HTML5-related technologies. I'm pretty experienced with jQuery and HTML canvas, have some expertise in WebSockets. I'm good with object-oriented and functional programming, my language of … more

    Over the last 3 years, I've been developing web applications, mostly using HTML5-related technologies. I'm pretty experienced with jQuery and HTML canvas, have some expertise in WebSockets. I'm good with object-oriented and functional programming, my language of choice is Python. I also have experience in cryptography and developing efficient algorithms. One of the proofs of my expertise in algorithms is a Bronze medal from the International Olympiad in Informatics 2012. When required, I may also set up Linux servers. My distro of choice is Arch Linux, though I have some hands-on experience with Debain too.  less

    python algorithms javascript html5 html cryptography linux-system-administration 00 more less
    • $11.11 HOURLY RATE
    • 4.6
    • 0 HOURS
    • LATVIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
  • Linux Admin and Devel (Security/Backup/C/Bash/Perl/Python/etc)

    I have over 14 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if … more

    I have over 14 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. ( Of course, of course )) - Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. As usually it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian Redhat, CentOS, SLES, OpenSuse + Windows 2003/2008. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. TIPS WITHOUT PAYMENT: =============== VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: - 80% cases - problem in 'indian' plugin ))) - 15% cases - problem in 'indian' theme ))) - 5% 0day of WP also you need disable all shell function in php and enable suphp. =============== Good Luck on odesk.by  less

    unix-system-administration unix-shell redhat-administration linux-system-administration bash nginx lamp-administration centos email-technical-support opensuse cryptography operating-systems-development perl apache-administration firewalls c administrative-support translation russian raid-administration redmine perl-catalyst 00 more less
    • $14.00 HOURLY RATE
    • 5.0
    • 369 HOURS
    • BELARUS
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • Architect, Backend Engineer (Scala, Java, Hadoop)

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala … more

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala / Akka Design - Jenkins Plugins Writing On a daily basis, I spend between Systems Architecture, Build Planning, for Hadoop and Restful Backends, specially under Amazon Web Services. Oh, I'm also a Cloudera Certified Administrator and Developer. Favorite platforms include Scala, Python and General Java. See my full profile for more descriptions and feel free to browse my github and bitbucket profiles at the addresses below: http://github.com/ingenieux http://bitbucket.org/aldrinleal Favourite customers involve pragmatic teams, with contant online presence, and direct involvement with the end customer, and a problem involving legacy and the next generation Feel free to discuss our next project - I'm always looking for the next challenge!  less

    hadoop java amazon-web-services spring-framework apache-maven jpa rest hibernate amazon-ec2 amazon-s3 amazon-rds apache-camel apache-hive puppet-administration xml-web-services junit cryptography xml-rpc twitter-api api-development api-documentation nosql test-driven-development j2ee j2se oauth java-servlets-development agile-software-development automated-testing database-testing load-testing apache-thrift mercurial multithreaded-programming software-debugging reverse-engineering data-science rss xml etl crawlers google-app-engine google-apps google-app-engine-api google-apps-api 00 more less
    • $55.56 HOURLY RATE
    • 4.8
    • 2535 HOURS
    • BRAZIL
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 12 TESTS
    GROUPS:
  • iOS/Android/MacOS/Win/ObjectC/C#.NET/C++/Delphi/Java/Web/JS/ASP/PHP/QA

    Owner and CEO at AdoriaSoft LLC. AdoriaSoft offers full cycle software development services and implements all stages of projects for our customers: - Research and estimation - Requirements definition - Architecting - Development - Graphical design and User experience design - QA - Support and updates Platforms … more

    Owner and CEO at AdoriaSoft LLC. AdoriaSoft offers full cycle software development services and implements all stages of projects for our customers: - Research and estimation - Requirements definition - Architecting - Development - Graphical design and User experience design - QA - Support and updates Platforms that we develop for: - iOS (iPhones and iPads of different versions) - Android phones and tablets - MacOS - Web - Windows desktop - Windows Server - Windows CE - Windows Mobile PPC and SP 5.0, 6.0, 6.5, 7 editions We - have different real devices for testing (Android phones and tablets, iPhones, iPads of different generations, Macbooks, etc), no emulators. - work with both native and crossplatform frameworks - use an established design/development/testing lifecycle, follow scrum - have our own development servers with tasks management system (JIRA), source control (Git), continuous integration and build server (Bamboo), etc. - can easy work with time zones like PST, EST, etc. - offer high quality and cost effective solutions for our customers Technologies/Languages/Libraries/Frameworks: - ObjectiveC, iOS SDK, Mac OS SDK, XCode - Java, Android SDK - C++, STL, Boost, ATL, WTL, COM, MFC - Windows API, DirectShow, DirectSound, Sockets, Completion Ports, OLEDB, TAPI, GDI - C#, Managed C++, ASP.NET, LINQ, ADO.NET Entity Framework, WPF, Compact Framework, Mono.NET, Monotouch, Xamarin - Appcelerator Platform, Titanium, PhoneGap - MS SQL Server, T-SQL, Oracle, MySQL, NoSQL, MongoDB - Cloud platfoms: Amazon Web Services ( AWS ), Microsoft Azure - Web technologies: REST and SOAP web services, JavaScript rich client libraries, HTML5, CSS3 Our competences: - business automation software - System utilities for MacOS, Windows and mobiles platforms - Information security, cryptography, steganography - client-server applications - Wireless 3G/4G, Bluetooth, WiFi applications - VoIP, voice codecs, data signal processing - Complex Web applications and portals (ASP.NET, PHP, REST web services, JavaScript rich clients)  less

    objective-c delphi php iphone-app-development c# sql jquery c++ ios-development mac-os-app-development windows-phone-7-development java .net-framework wpf microsoft-silverlight wcf rest .net-compact-framework cryptography security database-modeling project-management architectural-design data-science teaching-mathematics statistics vba microsoft-visual-basic svn git asp.net asp.net-mvc dotnetnuke f#-language entity-framework ado.net javascript microsoft-visual-c++ stl atl boost microsoft-visual-studio windows-azure sql-azure jquery-mobile software-qa-testing automated-testing software-testing manual-testing testcomplete ssl operating-systems-development driver-development test-driven-development scrum mono ipad-app-development apple-xcode android-app-development xaml ajax extjs microsoft-sql-ce nosql sqlite t-sql mysql linq-to-entities linq-to-sql entity-framwork 00 more less
    • $29.00 HOURLY RATE
    • 4.9
    • 13896 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 19 TESTS
    ASSOCIATED WITH:
  • Software Engineer / Java / PHP / Cloud / NoSQL / Cryptography

    I'm a software engineer based in Sydney I'm always after the simplest solution that deliver value to the business Areas of expertise - Web development (Java & Php) - Cloud computing (paas and saas) Google/AWS - API development - Security and Network … more

    I'm a software engineer based in Sydney I'm always after the simplest solution that deliver value to the business Areas of expertise - Web development (Java & Php) - Cloud computing (paas and saas) Google/AWS - API development - Security and Network Security - Mobile applications development (Android) with scalable Cloud Backends - NoSQL solutions - Mentoring and team management - Binary protocols (Hessian / Apache Thrift) Skills Programming languages: Php / Java Core / JEE / Android /Struts / Guice / Spring / Spring MVC, Hibernate / Google Application Engine / C/C++ Databases: MySql / MongoDB / Google Bigtable / Bigdata / CouchDB Interests: Cryptography / Secure API development Platforms: Windows / Linux (Ubuntu) / Linux ARM  less

    php mysql cryptography j2ee go-programming-language android-app-development java mongodb 00 more less
    • $55.56 HOURLY RATE
    • 4.9
    • 1337 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 6 TESTS
  • Professional Web Design and Development

    High End Web Design and Development Agency. - New websites develpoemnt - Websites redesign, Design, Graphic Design - E-commerce and online stores - Wordpress, Joomla, Magento, Drupal, python and much more. - Responsive Design - Mobile Apps - Api intergration - HTML5 Animation, Flash Animation - HTML5, HTML, PHP … more

    High End Web Design and Development Agency. - New websites develpoemnt - Websites redesign, Design, Graphic Design - E-commerce and online stores - Wordpress, Joomla, Magento, Drupal, python and much more. - Responsive Design - Mobile Apps - Api intergration - HTML5 Animation, Flash Animation - HTML5, HTML, PHP, jQuery, XML - JPG, Photoshop - QA Testing / Debugging - Bitcoin Integration Hosting & Security - Website Files and Database Hosting - Security Testing - Cryptography - TCP/IP Full Service Internet Marketing Company and Professional SEO Services - Improve your business online visibility - Grow your brand trust and credibility - Increase your website conversion - Get more traffic to your business website  less

    magento php web-design wordpress seo wp-ecommerce paypal-integration adobe-photoshop psd-to-html html internet-marketing 1shoppingcart html5 logo-design graphic-design ui-design bigcommerce jquery mobile-app-development adobe-flash zencart zendesk zoho-crm drupal joomla cakephp .net-framework custom-cms java javascript software-debugging xml payment-gateway-integration tcp-ip payment-processing security paypal-api cryptography network-security python volusion xero 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 3 HOURS
    • NEW ZEALAND
    • LAST ACTIVE
    • 23 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Er.

    My hands are dirty in C++, C#, PHP, AJAX, HTML, JAVA Script, Shell Script • In Development of platform independent Desktop/Web Applications. • Designing of Algorithms for finding solutions of complex problems. • Artificial Intelligence, Image Processing, Voice, Shape & Handwriting Recognition. • In … more

    My hands are dirty in C++, C#, PHP, AJAX, HTML, JAVA Script, Shell Script • In Development of platform independent Desktop/Web Applications. • Designing of Algorithms for finding solutions of complex problems. • Artificial Intelligence, Image Processing, Voice, Shape & Handwriting Recognition. • In Development of Natural GUI, MultiTouch supported Application using 3 Layer architecture  less

    java algorithms cryptography c++ qt php javascript html 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 1 TEST
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