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Cryptography Job Cost Overview

Typical total cost of Upwork Cryptography projects based on completed and fixed-price jobs.

Upwork Cryptography Jobs Completed Quarterly

On average, 8 Cryptography projects are completed every quarter on Upwork.

8

Time to Complete Upwork Cryptography Jobs

Time needed to complete a Cryptography project on Upwork.

Average Cryptography Freelancer Feedback Score

Cryptography Upwork freelancers typically receive a client rating of 4.94.

4.94
Last updated: August 1, 2015

Popular Cryptography Searches

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  1. Dmitry Popov

    Dmitry Popov

    Senior VMware and Linux administrator

    Russia - Last active: 20 days ago - Tests: 1

    In terms of skills, I am strong Cisco Network and VMware Engineer. Have strong switching/routing/firewall experience. I am also have reach experience of working within a virtual environment (VMware). Have deep VoIP knowledge. I am looking to move into a more design focussed role. Have years of support/implementation experience and would like a more architecture oriented role. But administration tasks are also very interesting for me. I can solve problems quickly and professionally.

    $30.00 /hr
    0 hours
    0.00
  2. Andrei Volkov

    Andrei Volkov Agency Contractor

    Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

    Belarus - Last active: 1 day ago - Tests: 5 - Portfolio: 13

    Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 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, 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. 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. 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. ------------------- Often: ------------------- 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. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. 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 - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as http://gtmetrix.com. =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei odesk.by / upwork.link PS: With love from USSR. ;-)

    Associated with: UPWORK.LINK

    $16.00 /hr
    992 hours
    4.98
  3. Girish V.

    Girish V.

    Perl,node.js crypto coder with TCP/IP networking, linux skills

    India - Last active: 1 day ago - Tests: 7

    Girish is a seasoned UNIX professional with rich networking experience working with protocols, low level protocols encoding, solving tough interop issues, reading RFCs, implementing standards, working on e-mail spam control, mail servers, firewalls etc. Also have excellent node.js and jquery skills. I am also experienced in MEAN, mongodb, facebook integration, oauth2 et al Specific expertise is on OpenBSD, perl coding, C and web technologies such as jQuery , javascript and products development.His open souce work is: http://gayatri-hitech.com Familiar with IPsec, L2TP, OpenVPN, PPTP VPN technologies, spam control, email technologies. I am also highly experienced in security areas, crypto, algorithms and UNIX environment's challenges and technologies. I am a systems programmer with high focus on programming correctness and efficiency. I offer 100% refund policy on dissatisfied work.

    $44.44 /hr
    205 hours
    4.54
  4. Chuen KaLam

    Chuen KaLam

    Cryptography+Video Editing+Mobile+Web Expert

    Hong Kong - Last active: 2 days ago - Tests: 11 - Portfolio: 8

    Maximum satisfaction to clients. I am an expert of cryptography + video editing + mobile + web programming. I have developed some video editing mobile apps using opengl es, and PC application using directX, directshow. I have rich experiences of using ffmpeg, ffserver to manipulate many videos and audios and video streaming. I have rich experience and knowledge about cryptography and e-commerce, bitcoin, etc. I developed a large e-commerce web sites using HTML5/CSS3, PHP, C# and MySQL, MSSQL, jQuery and Magento, Prestashop, ECShop, PHP Cake. I have developed some webapps using apache cordova, ionic. If you hire me, I will do my best to satisfy you. Thank you. My skills - iOS, Android, MFC, C# - PHP, ASP.Net, HTML5/CSS3, JSON, Node.js, jQuery, Angular JS - OpenCV,Directshow, DirectX, OpenGL, ImageMagic, LAV Codec, ffmpeg, ffdshow - MySQL, SQLite, MSSQL, Php Cake - Youtube, Facebook, Twitter, Linkedin, Instagram - Github, BitBucket, SVN - Cloud Service: Parse.com My Devices - LG V400, LG G2 - Samsung Galaxy S4, Samsung SM-G3502U, Samsung GT-P5110 - Nexus 7, Huawei d2, Sony Xperia - Amazon Kindle Fire HDX 7 - iPhone 5, 4 - iPad mini

    $25.00 /hr
    0 hours
    5.00
  5. Bonfix N.

    Bonfix N.

    Lead developer(desktop,mobile,web), Project Manager and SEO expert

    Kenya - Last active: 1 month ago - Tests: 4 - Portfolio: 8

    I've got excellent skills in Java, Android, PHP, C++ and project management. I develop websites with security and SEO in mind. I develop applications in the following platforms: 1. Web - PHP - HTML - CSS - JavaScript - Twitter Bootstrap - AJAX - Laravel framework - MySQL - Twitter, Facebook and PayPal API’s - MVC 2. Desktop • Windows - Java - C#.NET - C/C++ - Python • Linux - Java - C/C++ - Python •Mac - Java - C/C++ - Python 3. Mobile - Android I've had past projects in: - Java cryptography - Android SMS and call spying application - REST and JSON between Android and Web servers. - PHP MVC framework, AJAX - Windows Text Editor Currently, I'm looking for opportunities in Desktop software development , web and Android application development including building apps from scratch and customization of already available apps.

    $22.22 /hr
    3 hours
    5.00
  6. Nasir Bhutta

    Nasir Bhutta

    Dr, Programmer, Developer, security engineer

    Pakistan - Last active: 1 month ago - Tests: 3 - Portfolio: 9

    A software programmer with 7 - 8 years of programming in many different languages including c/C++, C#, VB, CB.Net, ASP.Net, Java, Python, Turbo Pascal etc. I have worked on many projects with many different clients from many different countries and in many different areas including Protocols, security products, APIs, Simulations, emulations, Web Development, Management Consultancies, Financial Consultancies, health care etc.

    $50.00 /hr
    0 hours
    0.00
  7. Dmitri Chinberg

    Dmitri Chinberg

    Software developer

    Netherlands - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    Developing desktop and web applications using mostly c#/.net and sometimes ubot studio, winautomation, selenium framework, imacros. Developing cryptocurrencies(like bitcoin or litecoin). Successfully cloned bitcoin sha-256 and litecoin scrypt cryptocurrencies, set up mining pool software (MPOS) and more. Accomplished text parsing jobs, web parsers and scrapers, data mining and processing solutions, text processing solutions, form submitters, website views increasers, event trackers, database/client management solutions, video and audio processing and converting tools, cryptocoins and more. Fast turnaround time and high quality are guaranteed.

    $40.00 /hr
    138 hours
    4.99
  8. Pavel Simonov

    Pavel Simonov

    Software Reverse Engineer

    Russia - Last active: 12 days ago - Tests: 3 - Portfolio: 1

    I am an HPC (high performance computing) specialist ( keywords: "super computers" / "number crunching" ) working mostly with huge Linux systems and math related tasks. I am also a scientist specializing in linear algebra . I have somewhat outdated formal training in cryptography (and cryptography related math) but I am definitely not an expert in the field. But here I am looking for fixed price software reverse engineering jobs to keep my skill fresh. Reverse engineering of firmwares for any kind of devices and Molebox problems are welcome.

    $75.56 /hr
    0 hours
    4.60
  9. Juan E.

    Juan E.

    Web Developer, Web Security, Linux Admin

    Colombia - Last active: 2 months ago - Tests: 7 - Portfolio: 14

    Dear reader, I'm Juan Escobar. Since 2009 I've been working with: + Linux servers + PHP frameworks + MySQL database + Security methodology OWASP Some years ago I started with security/programming challenges, currently I'm in Colombia's top 5 in wechall.net (A website that consolidates user scores in the security/programming challenges most recognized in the world): http://www.wechall.net/country_ranking/player/juanescobar#rank_2. In 2011 I registered Compubun Company. With Compubun I developed ​​web application for the government sector and private companies using technologies as PHP, HTML, CSS, jQuery and Frameworks. That made ​​me gain experience in management projects and administrative tasks. Finally, I want to say that I am a person who cares about the little details, I'm very obsessed with quality as you can see in the latest work from my portfolio.

    $20.00 /hr
    340 hours
    4.16