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, 169 C projects are completed every quarter on Upwork.

169

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 4.71.

4.71
Last updated: May 1, 2015
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  1. Gabriel Moncarz

    Gabriel Moncarz

    Computer Engineer - Python developper

    Argentina - Last active: 23 hours ago - Tests: 5

    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
    2,378 hours
    5.00
  2. Patrick S.

    Patrick S.

    Quant Finance, Trading Strategies, Algorithms, C#, Python, MATLAB

    United States - Last active: 21 days ago - Tests: 2

    If you want to create a trading system, run a statistical analysis, develop a pricing model, build a financial GUI, or find a pattern in a sea of data, I may be the guy to help. I work primarily in MATLAB, C#, and Python. On the finance side, I'm a CAIA Charterholder, with an Economics degree and experience at McKinsey & Company. On the technical side, I hold degrees (with honors) in Engineering, and worked at a number of California tech companies through the 1990's and early 2000's. Since 2008 I've focused my work in the field of computational finance. Recent clients have included: a Swiss proprietary trading desk (Energy Futures), a Canadian hedge fund (Currencies), a US asset management firm (Equities & Bonds), a US portfolio consulting firm, a US aircraft manufacturing operation, and several others. For those clients I have developed, backtested, and deployed alpha-seeking trading strategies, automated execution algorithms, portfolio optimization models, user-friendly GUI tools. Techniques have included machine learning algorithms, classifiers, feature detectors, digital filters, matrix-based models, and concepts borrowed from detection theory and signal processing, along with various technical analysis indicators. I've worked with many financial platforms and data feeds: Deltix QuantOffice (C#), CQG API, Bloomberg, Interactive Brokers API, MultiCharts (PowerLanguage), MultiCharts.NET (C#), TradeStation (EasyLanguage), FIX (HotspotFx), ITCH (HotspotFx), etc. I can integrate other systems with MATLAB or Excel where there's an advantage. I've created C/C++ .mex files, VBA macros, Java/MATLAB integration, MATLAB/Excel integration. I've been programming in MATLAB since 1990, and can sometimes get it to do things that others can't. I can also translate or port a MATLAB application to other languages, especially Python or C#. I'm located in Southern California. For clients located within 2 hours, I can drive to meet you (sometimes same day, schedule permitting). I'm also happy to work remotely. I'm a US Citizen and have held a security clearance, though it is no longer active. The foundation of every successful project is good communication. If you have a project that needs to be done well, then let's communicate!

    $95.00 /hr
    786 hours
    5.00
  3. Ryan K.

    Ryan K.

    Computaional Scientist / Software Engineer

    United States - Last active: 1 month ago - Tests: 6

    Broad experience designing, developing and implementing software tools and computational methodologies for applications in biotechnology, bioinformatics, genomics, drug discovery, and business intelligence. Software engineering, scientific programming, scripting in Unix/Linux environments. Excellent coding skills in C, Python, Ruby, Perl, R, shell (sed, awk). Experience with database modeling & queries (MySQL), web technologies (LAMP) PHP, CSS, JavaScript, HTML. Computer science & IT familiarity with algorithms, data structures, graph theory. Experience with software life cycle, testing procedures, system administration (Linux). Machine learning & statistics with custom code (C, Perl, Python) and statistical packages (S-PLUS, R scripts) for feature selection, data mining, classification, predictive modeling. Data QC and sampling, correlation analysis, plotting, visualization. Business proprietor, client interfacing, requirements gathering, project proposals and project management documentation, reports and technical writing.

    $44.44 /hr
    0 hours
    5.00
  4. Anton Myagotin

    Anton Myagotin

    Scientific programming

    Russia - Last active: 16 days ago

    Anton Myagotin was born on 27 September 1979 in Khabarovsk (Russia). He received the Dipl. Ing. degree in electrical engineer-ing in 2002 from the Khabarovsk State Technical University (Russia). He received the master degree in computer science in 2003 from the Saarbrücken University (Germany). From 2003 to 2006, he was a PhD student at Saarbrücken University (Germany). From 2006 to 2008, he was a lecturer in the Russian-German Institute of Computer Science at the Pacific State University (Russia). He received the PhD degree in the field of informational, measuring and control systems in 2011 from Institute of Mechanical Engineering Problems (Russian Academy of Science). Now, he is a dean of foreign student educational programs at the Saint-Petersburg State University of Civil Aviation. His research interests include signal and image processing, foam physics and parallel reconstruction algorithms.

    $38.00 /hr
    1 hours
    4.98
  5. Mike Kruskal

    Mike Kruskal

    Software Developer / Physicist

    United States - Last active: 26 days ago - Tests: 15

    I've been programming for 14 years and have a Masters degree in Computer Science from Johns Hopkins. I am currently working on a PhD in physics at BU (which does involve plenty of programming), but I enjoy more general software development in my spare time. I am fluent in: C, C++, Java, Javascript, PHP, MySQL I have a lot of experience with: web design (primarily backend), database design, Java UI development, working with big data, writing APIs, and more I can also learn new languages and APIs very quickly if a project requires me to, and because of this I have had experience with: Objective-C (iOS apps), C#, Python, Fortran, Bash scripting, various C-based scripting languages, and some less known languages.

    $40.00 /hr
    5 hours
    5.00
  6. Viktor Pogrebniak

    Viktor Pogrebniak Agency Contractor

    Expert C/C++/CUDA developer

    Russia - Last active: 23 hours ago - Tests: 10

    Software Engineer with more than 7 years of experience, have a lot of completed production C++ and Python projects, have strong GPU programming skills (CUDA), highly interested (and have several last years of uninterrupted experience) in Computer Science, especially in Data Analysis, Computer Vision, Machine Learning, Image Processing, Pattern Recognition and Data Mining fields. During the last 5 years I have worked on: - Computer Vision solutions (video survilliance techniques, Object Detection, Object Classification). - Machine Learning solutions (Neural Networks, Support Vector Machines, Decision Trees etc.). - Data Analysis solutions (statistics, visual search, visual indexing). During these years I have coded in C/C++, Python (main languages), Java and matlab. I create solutions for different platforms (Linux, Windows, Mac). I can use any VCS (mercurial, git, SVN etc.), having worked with other programmers in several projects (including technical leading). I have widely used libraries such as OpenCV, PCL (Point Cloud Library) and FFMPEG, and I have wide experience with solutions based on them (including optimization of existing algorithms). I also have strong QT skills (both front-end like GUI and back-end like threads, containers, databases, networking etc.) from early 3.x versions to the latest 5.x (including porting to the newer major version).

    Associated with: AIFIL

    $50.00 /hr
    364 hours
    4.98
  7. Philipp Schapotschnikow

    Philipp Schapotschnikow

    Applied mathematician and algorithmic software developer

    Germany - Last active: 2 months ago - Tests: 2

    Born in Odessa 1982, he graduated in Mathematics in 2006 from the Technical University in Munich (Germany). Afterwards, he completed PhD in Computation Materials Science at the Delft University of Technology (Netherlands) in 2010, and worked as Scientific Programmer in the field of combustion modelling. He has gathered experience from a large number of projects covering such topics as artificial intelligence and machine learning; computer vision; data modeling; inverse problems; conducting polymers; nanomaterials; fuel cells; fatigue failure prediction; combustion modelling. He is (co)author of 12 heavily cited scientific publications.

    $100.00 /hr
    37 hours
    5.00
  8. Andrew Balling

    Andrew Balling

    Systems Software Engineer/Analyst

    United States - Last active: 12/31/2013 - Tests: 4

    I am an experienced software professional with a diverse background. I have experience in developing standalone, server-side, GUI, and web applications using a variety of languages and frameworks. I am looking for opportunities that will provide challenges in any of these areas, and also those that would allow me to explore new fields. I am self-motivated and determined to design robust and efficient solutions in my work.

    Groups: Crossrider

    $55.56 /hr
    1,358 hours
    5.00
  9. Jacob Merchant

    Jacob Merchant

    Spreadsheet Guru and Workflow Specialist

    United States - Last active: 1 month ago - Tests: 3

    When I was 11, my parents showed me how to use Excel to track my trading card collection. Today, I'm a spreadsheet ninja. I know pivot tables like the back of my hand, I can script you out a macro in a matter of hours, and I can nest functions together in ways you've never thought possible. Big words, sure, but I back it up. I have built reports, ad hoc and repetitive, that have gone as high as the board of directors of Fortune 500 corporations. My VBA-enabled smart forms are used by front-line operations personnel, and are robust enough to handle transactions from any end user. I also have many years of experience developing business procedures and workflows. I can map out a workflow and easily identify where efforts are being duplicated or wasted. My expertise in automation has helped large companies reduce their staffing costs while reducing manual error rates and increasing overall productivity. As a business person who "speaks tech", I make a fantastic liaison between end-users and developers, thereby reducing complications during the business application development process, and making sure that the product you need is what is actually delivered. I also know a thing or three about coding and web design. Self-taught mostly; I took the intro to Comp Sci courses in college, but I picked up most of my chops modding video games and automating repetitive tasks at work. I've also taken a few Codecademy courses to round out my knowledge base. I've never spent too long in any specific language, so I actually think I have a better understanding of how computer science works than a dedicated coder who stays in one language all day does. In essence, a lot more breadth than depth. Languages I know today and are comfortable taking on work for include C/C++/C#, Java, Python, HTML, CSS, and PHP.

    $30.00 /hr
    44 hours
    5.00
  10. Md Forhad Hossain

    Md Forhad Hossain

    Sr. SharePoint/Office 365 Developer

    Bangladesh - Last active: 23 hours ago - Tests: 8 - Portfolio: 5

    I have 5+ years of experience in SharePoint and related technologies and 3+ years of experience in Office 365 and its related technologies. In this long period of my experienced life, I have explored lots of web technologies. The following technologies are some of my favorite technologies on which I have strong knowledge. -SSRS -Silverlight -Power BI -Dashboard -Other BI tools -JavaScript -JQuery -Ajax -CSS 3.0 -MySql -Azure -HTML5 -SQL Server -PHP Sr. SharePoint/Office 365 Developer/Consultant is the best title to describe myself with all my experience and exposure that I'm experienced in not just a technology but client communication, sales and marketing knowledge that come as an added advantage of a consultant job profile.

    $33.33 /hr
    66 hours
    5.00