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, 206 C projects are completed every quarter on Upwork.

206

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 4.73.

4.73
Last updated: July 1, 2015
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  1. Stacey Rieck

    Stacey Rieck

    Digital Design Engineer

    South Africa - Last active: 12 hours ago - Tests: 3 - Portfolio: 6

    Hi there! I'm a qualified Engineer with a BSc in Electrical Engineering who has been designing digital systems for the past five years. My speciality is in the field of signal processing, I have a solid DSP theoretical background, and have written Matlab/VHDL modules that channelise, process video data, calculate fluid flow and redirect ethernet packets. I am experienced in taking algorithms from papers and implementing them into VHDL or SystemVerilog, using Matlab to check my results. I'm also experienced in programming microcontrollers in C, FPGA board circuit design, and SOC device programming. I am a native English speaker and have formal education in Professional Communication in English. Languages: - VHDL & SystemVerilog - C++ & C - Matlab - Python - Perl & Bash - Java Chipsets: - Xilinx Spartan, Zynq and Virtex FPGAs - Motorola, uBlaze, Microchip and TI microcontrollers Tools: - Modelsim - Matlab and Octave - Xilinx ISE and Vivado - OrCAD and Eagle My Experience Includes: - Working with version control. - Collaborating with others on projects. - Developing documentation. - Working in a Linux environment. - Project management. What I am like as a contractor: - I work thoroughly and systematically. - I take pride in my work. - I communicate clearly. - I am passionate about what I do. I can supply my full resume and references of experience as necessary. I'm in the +2 timezone. Thanks for looking at my profile, and I hope to hear from you soon! Kind Regards! Stacey Rieck

    $47.00 /hr
    4,928 hours
    5.00
  2. K thomas L.

    K thomas L.

    Analog and Digital Designer - Over 20 yrs. Exp.

    United States - Last active: 7 days ago - Tests: 2 - Portfolio: 2

    Experience in small signal analog design, sensor interfacing, signal conditioning, sensor applications, data capture and analysis, digital design, microprocessors and small FPGA based systems. I have over 20 years experience developing ideas and bringing them through the design process to a finished product. I develop entire systems, including power, mechanical, optical, and software aspects. I excel in small, innovative designs using new technology. I design for durability and dependability coming from a background of experience in designing for harsh environments, high volume production lines, medical, and space applications. I have design experience in serial communications, optical systems, rf communications, programming, DSP hardware and software design, PC board design and technical writing. I offer my services to take your idea and bring it all the way to production, or to fill any need in the process. I am also available for consulting, helping you to refine your ideas into something that is both manufacturable and functional.

    $70.00 /hr
    2,543 hours
    5.00
  3. Stephane Travostino

    Stephane Travostino

    Systems and software specialist

    United Kingdom - Last active: 21 days ago - Tests: 8 - Portfolio: 3

    I like working on anything revolves around the IT ecosystem, and find the most fun in troubleshooting problems and working around strict requirements and deadlines. My peculiarity is discovering the root cause of a problem and working out the best solution in a very short time. I'm a self-taught Linux systems administrator, full stack developer and jack of all trades in systems design and maintenance. I have experience in C and Python programming, software design and management, Linux and Solaris systems administration, and high expertise in maintaining and tuning MySQL databases. I also develop modern and rich web applications with HTML5, Javascript and AngularJS. Other interests in web design, typography and improving team processes and workflows.

    $60.00 /hr
    1,087 hours
    4.96
  4. Alex G.

    Alex G.

    PHP, complex algorithms and big data processing guru, C# developer

    Poland - Last active: 12 hours ago - Tests: 8 - Portfolio: 6

    Senior PHP developer, high-load projects. 10+ years of PHP development, team lead experience. 7 years of C# back-end applications development. Working with custom peripheral hardware. Thread-safe and high-load applications. 3 years of C development for MCUs (Atmel controllers, Arduino, etc), custom peripherals, basic electronics and electrics skills. Guru in large data sets processing algorithms and different complex data structures (trees, graphs, etc.)

    $40.00 /hr
    1,653 hours
    5.00
  5. Ian M.

    Ian M.

    Sr. Mobile Software Engineer - iOS, Android, C/C++, Architecture

    Netherlands - Last active: 15 days ago - Tests: 4 - Portfolio: 7

    I'm an experienced mobile developer, iOS and Android; Top Rated oDesk freelancer. I've been working with software development since 2003, in a broad variety of software projects, platforms and languages: firmware, mobile and embedded software, enterprise distributed systems and web applications. I have a strong Software Engineering background, having worked on projects of different sizes, stages and performing different roles across software development, from architecture design and requirements analysis to programming and bug fixing. For the past few years, I've been working with mobile and embedded software, currently mainly iOS and Android.

    Groups: Application Developers Alliance

    $68.00 /hr
    1,129 hours
    4.99
  6. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 2 days ago - Tests: 5 - Portfolio: 2

    I have strong background in UNIX/Linux software development, Master's Degree in Computer Science. I worked on Enterprise high-load distributed hosting automation systems as a Team Leader (3.5 years in SWsoft, Inc., now called Parallels). For the last 6 years I'm running my own small software development business in Russia with primary focus on Python/Django apps. Not pure Web but often involving integration with hardware (Proximity Cards, Sensor Screens) or external systems like Payment Processing, SMS Gateways, GABRIEL (Airline Reservation System), etc. I can take an idea and turn it into a working business, through all the intermediate stages. Also I have experience of investing my own funds in my projects, so I feel the difference between "perfect code" in a month and "good enough" code that increases the revenue right now. Nevertheless, my code is very good: no copy-paste, always written with performance, flexibility and security in mind, etc. On oDesk I'm looking for (and actually find :) interesting projects with a sight on long-term fruitful cooperation. I'm also open to smaller activities (e.g., consulting) where my knowledge can be helpful.

    Groups: Coding Champs

    $40.00 /hr
    1,597 hours
    5.00
  7. Dmytro S.

    Dmytro S.

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

    Ukraine - Last active: 16 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
  8. Gabriel Moncarz

    Gabriel Moncarz

    Computer Engineer - Python developper

    Argentina - Last active: 12 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
    2,615 hours
    5.00
  9. Geoff Hackworth

    Geoff Hackworth

    Experienced iPhone/iPad/Watch Software Engineer (Native Apps)

    United Kingdom - Last active: 2 days ago - Tests: 17 - Portfolio: 16

    I am a highly-skilled software engineer and computer science graduate with 24 years of professional experience. Software development is my greatest skill and I have an incredible attention to detail and perseverance in getting the job done, and done well. I've been developing native Objective-C iOS apps for over 4 years. I don't use tools like PhoneGap or Appcelerator. I have direct experience with Apple's policies, device capabilities and account management procedures from publishing my own apps (see my portfolio for screenshots and iTunes links). By hiring me you would benefit from my extensive skills and experience. Technologies change, but first-class analysis, design, development, testing and debugging skills can only be built from many years of hard work and real-life development experience. I work from home in a distraction-free environment using a Mac with dual 23" monitors. For good test coverage I own several iOS devices: iPhone 4S, iPhone 5, iPhone 5s, 1st generation iPad, 3rd generation iPad, retina iPad mini, iPad Air 2 and 42mm Apple Watch. I don't believe you can get the true "feel" of an app by just using the simulator. For client testing, I can use TestFlight to deliver builds throughout the project. Thanks for taking the time to read my profile. I'm looking forward to working with high-quality product designers and creating some great apps together.

    $44.44 /hr
    1,192 hours
    5.00
  10. Jiang Jian

    Jiang Jian

    Android / iOS & 3D Developer

    Hong Kong - Last active: 7 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