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


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Cryptography Upwork freelancers typically receive a client rating of 4.92.

Last updated: August 1, 2015

Popular Cryptography Searches

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  1. Andrew Grigorev

    Andrew Grigorev

    Python developer with strong Linux background

    Russia - Tests: 3

    My career started at the university, in the data center network laboratory. There I became familar with FreeBSD and Linux, TCP/IP networks, and different services and started to use Python for my university tasks. Also, there I became interested in participating in computer security competitions, called CTF, and I have some success in it. Today I'm a professional Python developer working in Yandex, one of the largest Russian IT companies. If you need a Python programmer with great experience of Django, Flask, Tornado and other frameworks, who is familar with MySQL and PostgreSQL databases (but doesn't hesitate to use MongoDB, Redis, etc.) and has strong Linux administration skills - I'm the right person. Basic web-design skills and JavaScript knowledge are included. Also, I have some experience in writing crypto applications. Using Python with M2Crypto or C with OpenSSL or gcrypt.

    $16.67 /hr
    0 hours
  2. Djordje J.

    Djordje J.

    Expert Software Developer

    Serbia - Tests: 2

    My name is Đorđe Jocić (George) and I'm a Bachelor of Science in Information Technology and I have skills, knowledge and experience in procedural and object oriented programming, software development (mobile, desktop and web) and modern databases. I have also done work in the field of applied mathematics - cryptography. The nature of my previous job and experience I gained working on my personal and payed projects has prepared me for almost anything. I'm extremely persistent in problem-solving and I always go the extra mile to find the solution. All of my skills are listed bellow, so if you have a job/project for me please feel to contact me! Be sure to check my official web presentation:

    $15.00 /hr
    0 hours
  3. Roberto Sousa

    Roberto Sousa

    mean stack and security engineer

    Portugal - Tests: 1

    I have a master degree in cyber security and systems admin with a strong passion for cryptography. In the past year I create my own startup where I work with the latest technologies such as Mongo, angularjs and nodejs and at this moment I'm starting my own software company. I also have a strong knowledge on web development on HTML5 and CSS3 for optimized SEO. I'm new as freelancing but my skills will suit your needs.

    $11.11 /hr
    0 hours
  4. Douglas Baptista

    Douglas Baptista

    Web Developer/Network Security

    Brazil - Tests: 1 - Portfolio: 3

    Over the last 2 years, i have been working in development of sites in HTML5, CSS3 and JavaScript also create logos using with the ideas that the client wish.I have had experience in translating articles, keywords, and documents (English / Portuguese). Majoring in Information Security, I also have skills in Linux / Windows systems, for monitoring, support and network analysis. -Good Skills: -HTML5, CSS3,JavaScript,MySql. -Adobe Photoshop CS5, CorelDRAW X5. -User assistance Linux/Windows. -Interpreter.

    $4.50 /hr
    0 hours
  5. Ravi Bansal

    Ravi Bansal

    JAVA EE Programmer & IT Consultant

    India - Tests: 1

    Self-Directed, technically sophisticated & result driven JAVA/J2EE programmer (MCA Qualified) and IT consultant having capabilities to handle the challenges of Web Administration / Development, Client-Server Architecture, System Administration, Backup & recovery, Sysprep Scripts writing with 4 years+ experience. Expertise in the Project Analysis & Development related activities like Web Flow & Technical Analysis, Logic Design, Coding & Optimization, Debugging, SMS Gateway Integration, Database Connection Pooling, Java Mail API Integration, Mail Session Pooling, Bulk Mail and SMS processing, Concurrency, Task Creation & Scheduling, SEO, JAAS Implementation using Database, Information Security using Cryptography, Action Chain Management in Struts 2.x, JSP, Web Content Writing etc. Possessing valuable insights, keen analysis and approach to implement best practices & processes used, adept at working in high pressure environments with strict deadlines and multiple deliverable as well as working hard to give satisfaction, good quality work to the client.

    $10.00 /hr
    0 hours
  6. David Jooste

    David Jooste

    IT Cyber Security Network Administrator

    United States

    An Ethical Hacker and Cyber Security Network Administrator, my skills include advanced network administration and encryption. I specialize in network security, vulnerability and penetration testing. My code of conduct guarantees the utmost secrecy of performed work to protect you and I.

    $66.67 /hr
    0 hours
  7. Leonardo Miljko

    Leonardo Miljko

    Leonardo Miljko

    Bosnia and Herzegovina

    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. Artem Kuznetsov

    Artem Kuznetsov


    Russia - Tests: 2

    More than 4 years in C# development. Experience in programming client-server applications. Over 2 years work on MS CRM 4 and 2011 project for CRM4Legal and Aderant. I have experience in: .NET 2-4, C#, Microsoft Dynamics CRM4 and 2011, JavaScript, OOP, HTML, AJAX, software design and development.

    $16.67 /hr
    0 hours
  9. Vegard Solberg

    Vegard Solberg


    Norway - Tests: 1

    Hi! My name is Vegard and i am a computer engineering student from Norway, as im sure you all know we students don't have the largest income but we do have alot of spare time where i choose to do freelancing. My strenghts are overall programming(C/C++, PHP, JS, HTML5, C#, Java, Android, Python and Lua). I am a self-thaught programmer since 6 years ago, i am not good at designing, but i do get the programming done in no time! So far i have only worked for myself and created some websites that have been a litlle profitable, i have competed in Artificial Intelligence competitions at The Gathering in norway. I have created countless of apps for both desktop, mobile and web. If you are looking for a cheap and reliable programmer who develops secure code be sure to contact me. Best regards Vegard.

    $5.00 /hr
    0 hours