Cryptography Freelancers

Browse Cryptography job posts for project examples or post your job on Upwork for free!

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, 12 Cryptography projects are completed every quarter on Upwork.


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 4.95.

Last updated: June 1, 2015

Popular Cryptography Searches

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  1. John Smith

    John Smith

    Mobile+Video+Web+Cryptography Expert

    United States - Last active: 12 days ago - Tests: 4 - Portfolio: 3

    !~~~~ Maximum satisfaction to customers ~~~~! I am an expert of mobile, web, video and cryptography with more than 7+ years of professional experience . I developed many useful android & ios apps, especially social networking, video editing, video streaming, video chatting, games, location apps, etc. I have rich experiences to use ffmpeg to import many videos, audios, photos, cameras and export videos of several formats. I am developing the websites using HTML5/CSS3, PHP5, C# and MySQL, MSSQL, jQuery etc. I have rich experiences to build commercial websites with Paypal gateway. I am a cryptography and network security expert and have rich experience of designing and using symmetric & asymmetric cipher system and various security systems. If you hire me, I will satisfy you with good speed and high performance. My Mobile Devices: - Samsung Galaxy S4 - Google Nexus 7, Nexus 5 - iPhone4, 5s, iPad mini, iPhone 6+ - LG G2 F320S - Samsung GalaxyTab Pro 320 - Sony Xperia M35c My Skills: - iOS(Objective-C, Swift), Android (Java), NDK (C/C++) - PhoneGap, Xamarin - Cloud:, Amazon S3 EC2 AWS, Twilio - Media Streaming: Wowza, Red5, FMS - Video/audio/image processing: FFmpeg, Image Magick, AVFoundation, OpenGL ES, OpenCV - Facebook, Twitter, Linkedin, Instagram, Youtube, Tumblr, Pinterest, Line, WhatsApp - Chat & Messaging Engine: OpenFire, WebRTC, XMPP - Payment Gateway: PayPal, Stripe - Google Map, GPS, Open Street Maps, GCM Thank you for regards.

    $35.00 /hr
    0 hours
  2. Gil Ben Zvi

    Gil Ben Zvi

    Highly experienced SW Engineer

    Israel - Last active: 2 days ago - Portfolio: 5

    • More than 15 years of custom EDA (Electronic Design Automation) tools and algorithm development for large US-based semiconductor manufacturers. The main attributes of these tools were reliability, ease of use and extremely efficient performance (a key differentiator in this field). • Extensive experience developing native Windows applications and custom controls (using direct WinAPI system calls in C and CPP), and programming .Net applications and libraries (Mainly in C#). • Advanced algorithm development in Cryptography, Artificial Intelligence (AI), Image Processing and Computer Vision.

    $75.00 /hr
    0 hours
  3. Alex D.

    Alex D.

    Software Engineering Expert

    Greece - Last active: 8 days ago - Tests: 1

    Hi! I am Alex, a technology enthusiast and a passionate Electrical and Computer Engineer. I am an open-minded person interested in almost anything related to technology. I am self-motivated, problem solving oriented, with strong can-do attitude and extremelly fond of developing practical solutions (solutions that actually work!) for complex problems. I am interested in getting involved in product oriented challenging projects that target high quality standards. I have an MEng in Electrical and Computer Engineering. Over the last 10 years I have worked on various technologies and programming languages including but not limited to C/C++, MFC, Delphi, WinAPI, Intel x86 Assembly, C#, VB/VB.NET, WPF, Qt, OpenGL, DirectX, Unity3D, CUDA, PHP, Java, SQL, HTML, Javascript, Android Development, Windows CE Development, Reverse Engineering, Cryptography, Algorithms & Theory of Computation, Image processing, Signal Processing, Speech Recognition, Pattern Recognition, 3D Computer Graphics, Kinect applications and Artificial Intelligence. Applied Software Engineering is my passion. I am highly experienced in Object Oriented Analysis & Design and Design Patterns. I find solving challenging problems efficiently an exciting task. I always seek for opportunities to learn new technologies and apply my skills to develop solutions that work for you or your business based on your exact needs and requirements.

    $40.00 /hr
    0 hours
  4. Jevin Sweval

    Jevin Sweval

    Software Engineer

    United States - Last active: 20 days ago - Tests: 1

    My primary job is developing an anti-tamper, anti-circumvention, and code/data obfuscation product based on a custom version of the Clang/LLVM toolchain. This product protects application binaries from reverse engineering, code lifting, IP theft, and cracking. I am a proficient reverse engineer (both static and dynamic techniques) and understand security from both the white hat and black hat sides. I have assisted in PS3 jailbreak development and DRM reversing for interoperability purposes. In addition to my low-level toolchain and security expertise, I have extensive experience with Verification and Validation from my prior work at Qualcomm and Delphi Electronics. Besides my educational and work experience, I am skilled in writing web scrapers, automating utilities, and simulation / data analysis.

    $100.00 /hr
    0 hours
  5. David Cizek

    David Cizek

    Cryptography, Mobile, Web and Video Expert

    Czech Republic - Last active: 1 month ago - Tests: 8 - Portfolio: 6

    Hello Clients ! ~~ Credibility is my life, Quality is my proud. ~~ I am an honest, skilled professional with more than 6+ years experience in mobile, web, video and cryptography. I have developed many useful mobile(iPhone, iPad, android) apps, especially video edit, video chat, video streaming, social networking, tourist guide, games, etc. I have rich experiences to use ffmpeg to load many videos, audios, cameras and to produce videos of several formats. I am developing the websites using HTML5/CSS3, PHP5, C# and MySQL, MSSQL, jQuery etc. I have rich experiences to build commercial websites. I studied about cryptography and network security, mobile commerce in the university. I have rich experience of designing symmetric &asymmetric cipher system and mobile commerce system using it. If you hire me, I will give you much more help. I want to become a good friend and advisor of you who try for your success. Thank you. My Mobile Devices: - iPhone4, 5s, iPad mini, iPhone 6+ - Samsung Galaxy S4 - Google Nexus 7, Nexus 5 - Amazon Kindle Fire HDX 7" - Samsung GalaxyTab P5110, Pro 320 - LG G2 F320S - Huawei D2 2010, Honor 6 - Sony Xperia M35c - Xiaomi My Skills: - Native: iOS(Objective-C, Swift), Android (Java), JNI, NDK (C/C++) - Hybrid: PhoneGap, Xamarin - Cloud backend:, Amazon S3 EC2 AWS, Twilio - Chat & Messaging Engine: OpenFire, OpenTok WebRTC, XMPP, Jabber - Media Streaming: Wowza, Red5, FMS - Video/audio/image processing: FFmpeg, Image Magick, AVFoundation, OpenGL ES, OpenCV, - Facebook, Twitter, Linkedin, Instagram, Youtube, Tumblr, Pinterest, Line, WhatsApp - Payment Gateway: PayPal, Stripe - Google Map, Foursquare, Geolocation, GPS, Open Street Maps, GCM

    $33.00 /hr
    0 hours
  6. Gregory D.

    Gregory D.


    Switzerland - Last active: 11/07/2014 - Portfolio: 4

    After having started to program in C++ 2002, I started working in the domain of software development in 2003. Most of my earlier projects were for high-energy physics research, laying the groundwork for my specialization in data analytics. Over time and at first only out of curiosity I gradually switched towards security related areas such as reversing, penetration testing and of course cryptography. Several years later, by the time the global eavesdropping programs of many secret services around the world were revealed, I decided to focus on consulting for cryptography and other information-hiding approaches as my second area of expertise.

    $231.00 /hr
    0 hours
  7. Leonardo Miljko

    Leonardo Miljko

    Leonardo Miljko

    Bosnia and Herzegovina - Last active: 06/06/2014

    I'm: - Graduate engineer of Electrical engineering, Computing and Informatics (Faculty of Electrical engineering in Sarajevo, University of Sarajevo, Bosnia and Herzegovina, five years study program of electrical engineering and informatics, Graduated: 04.10.1991. veral score: 9 ). - Senior teaching assistant for courses: Informatics, IT management, Computer crime, Introduction to information safety. - Expert testifying at Court for IT engineering, B&H - Independent expert associate (Director's office) for IT system Fund Health Insurance of HNC, Mostar, B&H. (Technical support , databases and application design; Responsible for database security and administration, data archiving, and archiving and protection of program code; Responsible for updating the Register of taxpayers and users of health insurance; Responsible for the security and control of data received from health centers, hospitals and pharmacies; Gives suggestions, recommendations and guidance in the field of: of information, communication, cryptography and security technologies, modernization of the health insurance system and comply with the European "e-health", centralization of database and on-line access, protection of personal data; software and hardware equipment and tools; implementing security, administration and archiving database; Integration of Health Smart Card in the health insurance system of HNC - Director – additional job (Studio Leonardo, Mostar, B&H) Reference: ; ; ; ; - Knowledge of HTML, CSS, C, PHP, HTML, and Javascript, Web design, Adobe Creative Suite, Web sites creation, web applications, CMS Joomla, Flash, web shop, Virtuemart web hosting, Apache , SEO. - Experience with relational databases, MySQL, PostgreSQL, MS SQL, Oracle, Access. - Security check of computer systems (Ethical hacking). Computer forensics and Data recovery from erased, damaged and/or destroyed media. - Statistical analysis of data IBM SPSS CHRONOLOGY: 28.01.1966. Born, Travnik, B&H Nationality: Croatian, EU 1980/81 – 1983/84 High school of Electrical engineering in Mostaru, B&H (Electrical technician - telecommunications) 1985/86 – 1989/90 Faculty of Electrical engineering Sarajevo (five years study program of electrical engineering, computing and informatics) 04.10.1991. Graduate engineer of Electrical engineering, Computing and Informatics 12.1992. – 4.1993. Parex Ltd., Ljubljana, Slovenia 5.1993. – 1.2001. Gold Coin Ltd, Ljubljana, Slovenia 2.2001. – 03.2007. HYPO Gold Coin GROUP Ltd, Podgorica, Montenegro 3.2003. – to present LR CC USA-Montenegro d.s.d, Podgorica, Montenegro (part time job) 2004. – 2007. Emona housing, Budva, Montenegro (employed under the contract of royalties) 9.2007. – to present Fund Health Insurance of HNC, Mostar, B&H (full time job employment) 3.2008. – to present Studio Leonardo, Mostar, B&H (additional job, private business) 10.2013. – to present Faculty of resources management - CKM, University "Herzegovina", Mostar, B&H (Senior teaching assistant) - Broker certificate, Republic of Srpska Securities Commission - Broker license, Republic of Montenegro Securities Commission - Low voltage electrical installations project contractor authorization; Low voltage electrical installations contractor license; Low voltage electrical installations supervisor authorization; Low voltage electrical installations license - Ministry of Economic Development of Montenegro

    $49.99 /hr
    0 hours
  8. Christian S.

    Christian S.

    Mathematician / Physicist / Programmer

    United States - Last active: 3 months ago

    I have extensive industry and governmental experience with various physics, mathematical and programming projects using Linux, Python and C. I've done electromagnetic modeling, stochastic modeling, parallel programming, cryptographic, networking and digital signal processing applications. I have a Ph.D. in physics with an emphasis on computation.

    $50.00 /hr
    0 hours
  9. Nasir Bhutta

    Nasir Bhutta

    Dr, Programmer, Developer, security engineer

    Pakistan - Last active: 17 days 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