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

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On average, 176 C projects are completed every quarter on Upwork.

176

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Average C Freelancer Feedback Score

C Upwork freelancers typically receive a client rating of 4.73.

4.73
Last updated: September 1, 2015
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  1. Pasqualino Ferrentino

    Pasqualino Ferrentino

    Software Architect

    Italy - Tests: 17 - Portfolio: 1

    I am a computer scientist whose main skills are in the field of data analysis, pattern recognition, statistical software, machine learning and large scale system design and integration. I have developed systems using Neural Networks, Markov chains, Support Vector Machines in various applications: OCR, image processing, data analysis, text indexing and retrieval. I am also proficient in 3D image visualization using common off the shelf libraries and methodologies, either low or high level, like OpenGL, DirectX, VTK, Java3D. I understand and use common ray tracing programs. I understand image processing topics like segmentation, thresholding, classification. I have worked in the past in a 3d Face recognition European project. I know the OpenCV library quite well. In the field of "general programming" I have a good understanding of Databases, multi threaded applications, sockets, pipes, encryption (symmetric and asymmetric), compiler design, operating systems, low level data structure in memory and on disk, data integrity. I consider myself an expert in data structures and algorithms: trees, queues, lists, b-trees, hash tables; I use standard libraries like STL, Boost, Java generics. I have a good knowledge of SQL and data normalization however I have also used custom No-SQL databases like Datadraw, MapDB, Tokyo Cabinet, Zope. I know all the basic algorithms and templates used in every day coding; regarding data integrity and security. Compression (lossy and lossless), symmetric and asymmetric encryption, public certificates, I have worked with OpenSSL programming, encrypted web services, packet sniffers. I am proficient in all the common every day languages with an emphasis on C++ and Perl. But I can use: Java, Python, Visual Basic, C#, PLSQL, Delphi. I know all the Object Oriented Programming concepts and design patterns and I use them if the need arises, but I am also able to write object-free programs in C or functional languages (like Haskell or Scheme). I know modern version control systems like git and mercurial, even if I can use also older ones like Subversion or CVS. I know Windows programming and API quite well. I have used WPF and WCF to create desktop applications in Windows and web services. I have used Linux and Gui toolkits like Qt which are platform independent. I know XML, XSL, I have used several parsers like the MsXML or Xpath. I know how to validate a XML with a schema. I have worked with a team that handled thousands of XML documents relating to air crashes in a SQL server database. I am able to talk and write in English with fluency. If anything is not listed here either I have forgotten to list it or I can probably learn it quite fast, so don't hesitate in asking!

    $24.41 /hr
    7,303 hours
    4.97
  2. Aamir sher K.

    Aamir sher K.

    Design Engineer

    Pakistan - Tests: 4 - Portfolio: 2

    i am working as design engineer for last five year and has develop different types of embedded system using microcontrollers FPGAs.I have experience in digital design,embedded programing and PCB desiging.Apart from that i have used java,C# for GUI development. Experience in Atmel/Microchip/Infenion/Dallas/TI etc 8-16bit Microcontrollers Sensors Data acquisition Systems RS422,RS485,CAN,I2C,SPI etc busses C/C++,C#,JAVA,Embedded C & Assembly PCB designing in Altium,Orcad,Design Spark etc. FPGA proramming using VHDL Xbee,GSM,RF networks PCB designing in Altium/Eagle

    $16.67 /hr
    96 hours
    4.93
  3. Muhammad Abdullah

    Muhammad Abdullah

    Software Developer and Web Programmer

    Pakistan - Tests: 3 - Portfolio: 4

    I specialize in solutions development using Microsoft Technologies for Windows, .NET, Web & Azure cloud platforms. Experienced in C/C++ (Win32, DirectX) programming, C#, F# & VB.Net development, Asp.NET web development, Windows Server & MS SQL Server Administration and Windows PowerShell Scripting. I provide services for SharePoint, Access, Excel (VBA) development & project management using Visio & MS Project. I'm passionate about exploring Microsoft technologies, solving complex problems; committed to my work & offer prompt communication.

    $30.00 /hr
    11 hours
    4.93
  4. Aldion P.

    Aldion P.

    Proficient C/C++ Programmer

    Philippines - Tests: 3 - Portfolio: 3

    For a combined 12 years, I have been involved in projects using C/C++, C# as the main programming language. 4 of those 12 years, I have developing embedded software for ECUs, and most of those years, I have been developing desktop applications, network management software applications, and micro-processor targeted software(ARMM, etc.). I also have some experience in developing websites using PHP, MySQL, and HTML. I also have had part-time programming projects using Java, and VC++.

    $22.22 /hr
    2,186 hours
    5.00
  5. Fabio Silva

    Fabio Silva

    Computer Engineering w/translation skills

    Portugal - Tests: 5 - Portfolio: 6

    My name is Fábio Silva and I am Portuguese. Currently I am taking a Master Degree on Computer Engineering at University of Porto (4th year), one of the best ranked in Europe. I learned English for 10 years, so you can expect translations of the highest standards. I'm used to high standard assignments and to deal with tight deadlines, which you can testify from my feedback. You can count on: *Work completed on time *High-Quality job *Reasonable prices

    $9.00 /hr
    51 hours
    4.91
  6. Aleksey Khazov

    Aleksey Khazov

    Embedded Soft | Desktop Application | Trading System | Web Development

    Russia - Tests: 1

    Development of the system software for microcontrollers and digital signal processors (DSP) from Texas Instruments, ATMEL, Analog Devices. IDE: Code Composer Studio, Visual DSP ++, IAR Embedded Workbench. Development of the different periphery as ADC, DAC, RS-485, EEPROM, RAM, GPS, USB, PCI, real time clock (RTC) and others. Languages C and C ++. Development of software under Windows in environments C ++ Builder and Microsoft Visual C ++ (console and Windows Form.NET application) in languages C and C ++. Writing of drivers in WinDriver. Development of help systems in HTML Help Workshop, installers in InstallShield and Smart Install Maker. Creation the menu autostart of CD. Development of documentation - specification, instructions. Web programming (HTML, PHP, CSS, MySQL, Ruby). Programs: Microsoft Office, Visio, Adobe Photoshop, Corel Draw, 3D Max, Subversion and others. Development of automatic trading systems on the MQL 4 language (Development of Expert Advisors, Custom Indicators, Scripts, Libraries).

    $11.11 /hr
    180 hours
    5.00
  7. Jigarbhai Patel

    Jigarbhai Patel

    Expert C/C++/C# Programmer, Algorithms Developer, Technical Writer

    India - Tests: 3 - Portfolio: 10

    "I believe in providing best quality services to my valuable clients." I have received the Bachelor of Engineering degree in Computer Engineering from Hemchandracharya North Gujarat University, Patan, Gujarat, India, in 2005 and the Master of Engineering degree in Computer Engineering from Dharmsingh Desai University, Nadiad, Gujarat, India, in 2008. My Part-time Ph.D. in Computer Engineering from Uka Tarsadia University, Surat, Gujarat, India, is pursuing since January 2013. My research interests include Artificial Intelligence, Computer Algorithms, Optimization, Machine Learning and Lean Manufacturing. I have excellent C/C++/C# programming proficiency. I have one year experience of Programmer and Customer Support Engineer & seven years experience of Assistant Professor in reputed Engineering Colleges. I have successfully developed several projects in C/C++/C#, guided 40 major projects of undergraduate students, 10 research projects of postgraduate students, published 7 research papers in international journals and attended 4 workshops & training programs organized by IIT Bombay & Nirma University. I have excellent proficiency to write high quality articles, blogs and e-books. I have effectively and efficiently solved the following combinatorial optimization problems by designing & implementing various algorithms such as A* search, brute-force-search, breadth-first-search, depth-first-search, branch-and-bound algorithm, hill climbing, greedy algorithm, genetic algorithm etc... in C/C++/C#. 1. Workforce scheduling and routing problems 2. Capacitated vehicle routing problem with time windows 3. Traveling salesman problem 4. Crew allocation & scheduling problem 5. Home health care problem 6. Job-shop scheduling problem 7. Tasks allocation problem 8. Packing problem 9. Cell formation problem 10. Machine layout problem 11. Cell layout problem 12. Circuit-satisfiability problem 13. Subset-sum problem etc… I have also developed projects of neural networks as follows. 1. I have trained perceptron for binary classification which can be used to predict whether a given car is a family car or not. 2. I have also trained perceptron for multiclass classification which can be used to classify the input into one of output classes namely car, human or dog. 3. I have also developed multi-layer feed-forward neural network to learn XOR function. I have taught various subjects at undergraduate & postgraduate level such as Microsoft Office, C, C++, Artificial Intelligence, Computer Algorithms, Computer Graphics, Computer Network, Computer Communication & Networking and System Programming.

    $50.00 /hr
    46 hours
    5.00
  8. Gecel Molina

    Gecel Molina

    Senior Software Engineer - PHP

    Philippines - Tests: 1

    I have been in the industry for almost 4 years now, with wide range experience in developing desktop, mobile and web application. My main strength lies in my capability to learn new technologies and apply it to my current task. I am practicing Continuous Integration to automate testing and deployment, hence, delivering an application of great quality. I have experienced using Java, PHP, Wordpress CMS, MySQL, HTML, CSS and many more. I can work on Linux, Mac and Windows Environment. I am also a writer and would love to create articles for you if the need arises. Contact me if you need a well-rounded software engineer!

    $8.89 /hr
    407 hours
    4.71
  9. Amani Salah

    Amani Salah

    Computer & Systems Engineer

    Egypt - Tests: 5 - Portfolio: 2

    More about me : eg.linkedin.com/in/amanisalah I always seek challenge in my life, whether it's through my job or through a quick travelling adventure. I'm interested in topics like Algorithms, Natural language processing, Machine learning and security. I prefer working in a start-ups or constantly growing companies because it's where you find the most challenges. I have a BS in Computer Science, I'm currently working as Bluekaizen Alexandria student representative and Arabic grammar checker for Ketabna.com. I'm interested in python, scrapy, crawlers, linux administration, Arabic/English translation and technical writing in English/Arabic.

    $28.00 /hr
    263 hours
    4.67