C Developers & Programmers

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C Job Cost Overview

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

Upwork C Jobs Completed Quarterly

On average, 159 C projects are completed every quarter on Upwork.

159

Time to Complete Upwork C Jobs

Time needed to complete a C project on Upwork.

Average C Freelancer Feedback Score

C Upwork freelancers typically receive a client rating of 4.70.

4.70
Last updated: June 1, 2015
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  1. James Baker

    James Baker

    embedded systems, PLC/HMI/SCADA

    United States - Last active: 17 days ago

    Designed panels, SCADA, PLC code, and HMI code. Designed embedded HW and FW, system architecture, schematics, and boards. Designed embedded commercial, automotive, military, and medical devices. Designed FW with IAR, Eclipse, GNU/GDB, MPLABS, CodeWarrior. Designed AC/DC and DC/DC supplies, and battery chargers Designed HW with Orcad, PADS, Allegro, Eagle, ViewDraw, Mathcad, and Hyperlynx. Designed using 68332, 68HC11, x86, PowerPC, SH7760, PIC, AVR, ARM, MSP430. Designed FPGA, CPLD, and EPLD devices using VHDL, Synplify, Xilinx, and Altera tools. Designed up to 32-bit embedded systems with up to 12-layer boards. Simulated boards. Designed SW with C, Python, and Bash/AWK/SED. Utilized PVCS, TLIB, CVS, SVN, and git version control systems. Took products through regulatory testing at UL and TUV. Managed HW and FW engineers. Evaluated requirements and wrote proposals. Mentored / Trained Engineers and Executives Authored magazine article

    $55.56 /hr
    82 hours
    5.00
  2. Olaf Dietsche

    Olaf Dietsche

    Senior software developer

    Germany - Last active: 4 days ago - Tests: 34 - Portfolio: 5

    I am a professional software developer, working as a freelancer since 1987. My primary programming languages comprise C++, Java, SQL and various scripting languages (shell, perl, awk, ...). My skills also include both front end (HTML, CSS, Javascript, jQuery) and back end web development (PHP, JSP, Java servlets). I have done projects on my own, in small teams of 2-4 developers, and in large teams as well.

    $45.00 /hr
    69 hours
    5.00
  3. Jiang Jian

    Jiang Jian

    Android / iOS & 3D Developer

    Hong Kong - Last active: 5 days ago - Tests: 6 - Portfolio: 3

    Thank you for attention to my resume. ***** Android Phone & Pad App Devlopment ***** I have 5+ years experience of Android App Developing. * Make full use of many Android UI. * Proficient with Android SDK * Extraordinary skills with Java, MySQL, * Extensive knowledge of various programming dialects (C++, JavaScript, HTML, CSS) ***** iPhone & iPad App Development ******** I have 1+ years experience of iOS App Developing * Make full use of iOS App's UI * Swift language for iOS 8 ***** 3D Application Development ***** i have 3+ years experience of 3D application Development * OpenGL & DirectX on Desktop and OpenGLES on Mobile * Terrain Rendering with ROAM * Shaders(GLSL, HLSL) for Lighting, Texturing, Bump mapping, Parallel mapping. * Navigation in one Building, in small Street, in City with large amount of buildings ***** my speciality as DEVELOPER ***** * Extraordinary interpersonal and communication skills. * Team work adept * Able to perform individually as well * Strong organization skills * Deep knowledge of computer software troubleshooting and debugging * Strong ability to think and act quickly Thanks. Jiang.

    Groups: Application Developers Alliance

    $45.00 /hr
    1,049 hours
    5.00
  4. Reda Boultam

    Reda Boultam

    iOS/Android Expert

    Netherlands - Last active: 1 day ago - Tests: 4 - Portfolio: 4

    Hi I have been developing software applications for over 10 years. I have developed many software applications in various programming fields for those years. Since 2009, I have been mainly working for iOS/Android applications. My core skills: - iOS/Android application development - XMPP chatting server/client development - Social networking - Video streaming (Wowza, Crtmpserver, Live555, Vlc, FFMpeg, HLS, Youtube) - Voip(Asterisk, Linphone, PjSip, OpenFire, CSipOpen,CsipSimple,..) - Unity3D app and game(AR, VR,..) - Cross-platform application development(Qt, Xamarin, Cocoa,..) I am now seeking opportunities to allow me to furthur develop my skills by developing high quality solutions to clients. I'd like to help the clients to implement their ideas successfully. Thanks

    $55.56 /hr
    11 hours
    5.00
  5. Michael Angelos Simos

    Michael Angelos Simos

    Python / Java Expert

    Greece - Last active: 1 day ago - Tests: 3 - Portfolio: 9

    Over the last years, I have been involved with several large scale projects from web development to distributed systems. Information Retrieval Semantic Information Retrieval and Data Mining is my passion and research domain over the last years. I currently work at National Hellenic Research Foundation / NDC . Feel free to contact me for consulting, or quotation requests.

    $40.00 /hr
    18 hours
    5.00
  6. Jan P.

    Jan P.

    Senior Mobile App (ios/iphone/ipad/Android) & Web Back-end Developer

    Sweden - Last active: 9 days ago - Tests: 7 - Portfolio: 5

    --- Senior Mobile App (iOS/Android) & Server Back-end Developer --- - My Mission - + A good beginning makes a good ending + We have already covered half the distance + Come to the finish - Who am I? - CV : https://docs.google.com/document/d/11XYL_UnZFr32Qm8xgOhJPIy2vGRLg_-bEbjcZQXFJME/edit Site : https://boozer.io + Full-Stack Mobile Apps & Web Services Expert + Full Time support (40~60 hrs/week), Daily progress report & live chat + Long-term relationship contract & Money-back guarantee I am a Senior Software Developer working on Mobile Application Development with extensive experience with the iOS and Android SDK, Objective-C, Cocoa Touch, UIKit, Xcode, Swift, Java. I've been working as an iOS &Android and Web developer for 10+ years since i graduated the university. -- What can I do? -- - iOS/Android Application Development • iOS Native (XCode): Objective-C, Swift, Cocoa Touch, iOS7 & iOS8 Kitkat • Android Native (Studio/Eclipse): Java • Hybrid Apps: Phonegap by Ionic (Angular JS), Cordova SDKs, Xamarin, .NET, JQM, Kendo UI - Web Services Support • Main Tools: PHP, MYSQL, HTML5, DHTML, JQuery, CSS3 (Bootstrap & Responsive & Parallax) • JS Templates: AngularJS(Ionic), BackboneJS, NodeJS(XMPP), RequireJS • Common Templates: WP, Joomla and PHP MVC frameworks : CodeIgniter, Laravel, CakePHP, Yii and Kohana • Ecommerce: Magento, OpenCart, WooCommerce, Shopify and Prestashop • Back-End: JSON-RESTful APIs as well as 3rd Party SDK integration like Parse, Twillio • Services: Cloud, FB, Twitter, LinkedIn, Twitter, Google, Audio/Video (Wowza) Streaming - Other • AppStore submission, testing, TestFlight, Unit Test • Git, SVN, GitHub, bitBucket, bug trackers • UI/UX, Human Interface Guidelines I work as individual, supporting full time. I'm here to analyze your ideas and requirements and offer our vision of project realization. Rough quote will be ready within 48h. If it is acceptable for you, I'll prepare detailed project development plan indicating timeline and budget. I always make sure to bring you upon successive results of highly and creatively qualified results before your deadline and guarantees refunding for any unsuccessful results or issues which are responsible for me. I am seeking an opportunity to become a business partner with long-term relationship forever

    $57.99 /hr
    10 hours
    5.00
  7. Bigyan Shrestha

    Bigyan Shrestha

    Software Engineer

    Nepal - Last active: 15 days ago - Tests: 4 - Portfolio: 2

    I have 2+ years experience in software development as a Software Engineer. * Languages: Java, PHP, Common LISP, C/C++, python * OS: Linux (Redhat, Debian), Windows * Databases: MySQL,Oracle, MsSQL, SQLite, Berkeley DB * Miscellaneous: # HTTP, SOAP, Web services # JBoss, Apache Tomcat, Slide (WebDAV) # Ant, Maven, Bamboo, SVN, CVS, GIT ** Specialties: Research, design, development, and testing of enterprise and desktop applications. Release engineering and tools development more info: http://np.linkedin.com/in/bigee

    $44.44 /hr
    13 hours
    4.94
  8. Dmytro S.

    Dmytro S.

    Web/Software Developer - Java/Flex/Flash/3D/HTML/CSS/JS/Unity3D

    Ukraine - Last active: 14 days ago - Tests: 8 - Portfolio: 2

    Over the last 8 years, I have developed a range of websites using HMTL, JavaScript, Tibco GI, Flex, Flash, Unity3D, Java(JSP, Servlets, Struts, etc.) and MySQL, MS SQL Server, Oracle including sites for startup companies, small businesses and very large CRM applications for bank with world name. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business.I also have good experience in the following areas: 3D development, OOP, SQL, Ajax and software design and testing.

    $38.89 /hr
    2,009 hours
    5.00
  9. Gabriel Moncarz

    Gabriel Moncarz

    Computer Engineer - Python developper

    Argentina - Last active: 8 hours ago - Tests: 5 - Portfolio: 1

    Computer Engineer, Master in Quantitative Finance and curruntly studing a master in Data Mining and Knowledge discovery. I've been developing backend software, tools and plugins to international companies for the last 10 years. I code in Python, Perl, Java and C. All my developments run on Linux and Unix environment. I manage Linux servers, DB Engines, Tomcat/apaches servers and most well known Linux tools and services. For statistical analysis I work with R, SPSS and MatLab.

    $38.00 /hr
    2,592 hours
    5.00
  10. Igor Gamayunov

    Igor Gamayunov

    Software Architect and Developer

    Canada - Last active: 12 days ago - Tests: 1

    I have been developing Asterisk based telephony systems for more then 8 years and have very extensive, more than 18 years, Linux development experience. I have provided Asterisk and OpenSIPS cloud based solutions that comprise both back and front-end components and include complex dial-plans, IVRs and AGI scripts, in the following areas: - Hosted PBX applications - Conference bridge applications - Call Center applications - Intelligent Telephony load and stress test applications - Asterisk ARI - Asterisk WebRTC - REST API, OAuth 2.0 I have designed and developed Asterisk based Call Center system that is running on the AWS EC2 instances. This system is successfully integrated with the following platforms: - Proprietary CRMs - vTiger - Bigcommerce - Shopify - Nation Builder - NGP VAN I have very extensive customer support experience and good at writing user guides and developer API documentations. In addition I have a Project Management certificate.

    $38.89 /hr
    599 hours
    5.00