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. Patrick S.

    Patrick S.

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

    United States - Last active: 11 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
    788 hours
    5.00
  2. Aditya Nugraha

    Aditya Nugraha

    Web Scraping Expert | Data Processing Enthusiast

    Japan - Last active: 30 days ago - Tests: 4

    Education: - B.Sc. in Electrical Engineering - M.Sc. in Digital Media & Game Technology - M.Eng. in Computer Science & Engineering Tools: - Python, C/C++ - GNU Octave, MatLab - Shell scripting (bash, tcsh, etc.) - Linux, MS Windows - LibreOffice, OpenOffice, MS Office, LaTeX * It's not about the tools. It's all about the creativity in using the tools to deliver what you want. *

    $25.00 /hr
    121 hours
    4.99
  3. Shantonu Sarker

    Shantonu Sarker

    Performance & Automation Engineer,Java/C# Unit Tester ,QA Architect

    Bangladesh - Last active: 1 month ago - Tests: 9 - Portfolio: 33

    9+ Years Experienced,Highly skilled Test Developer From Bangladesh:Work Areas. 1. Performance Testing, Debugging, Profiling & Investigation(Jmeter, LoadRunner, ANTS,DotTrace, Yourkit)** 2. Automation/Unit Testing in Web and Mobile Apps(Selenium, CodeCeption, Robotium, Sahi, Pex-Mole-Calabash)** 3. Software/Framework Development / Data Scrapping(Java/C#)** 4. End to End Software Test Design/Planning/Strategy** Exp : http://shantonusarker.blogspot.com/p/experience.html . Offers : http://shantonusarker.blogspot.com/p/hireme.html . My Gadgets & Gears : http://shantonusarker.blogspot.com/p/gadgets.html* Experienced areas : -Performance testing in JMeter/Load UI/SOAP UI/ WAPT/LoadRunner/Visual Studio Load Test/WinRunner/WCF Test -Performance Profiling and Investigation for DotNet and Java Application using ANTS, DotTrace, Yourkit, PerfView, VisualVM, Hprof. -Functional testing/ Framework building in Selenium/Sahi/Coded UI, VS Test/TestComplete/TestNG/NUnit/XUnit/JUnit/Robotium/MonkeyTalk/Pex/Mole/Behave -Flash Automation using Genie/Flash Selenium -BDD with cucumber, Calabash-android, Ruby -Developing tools(C#,JAVA, C++) for testing ,validation & reporting. -Bing Map API/ Google MAP API integration with c# and java -Data Crawling/Scrapping using JAVA(Jsoup/nutch/solar) & C# DotNet -Unit Tests and Integration Tests on a. C#, ASP.Net,SharePoint 2010(on Layer Architecture with Nunit,XUnit, MS Test, PEX, Moles ,Behave) b. J2EE, J2SE (Junit, TestNG, c. Android (Junit, Robotium ) d. PHP(php unit) /codeception/ CasperJS -Mobile Automation using Robotium /CalaBash/Monkey Talk -Security Testing(SQL Injection, Pin-testing, Cross Site Scripting) with Acunetix and Firefox/chrome extensions -Bug/Issue Investigation(Root Cause Analysis) and Tracking -Software design and documentation using UML 2.0 for Layer Architecture. -Training in SQA/Testing & Development (JAVA,C# .Net)

    Groups: Application Developers Alliance

    $40.00 /hr
    414 hours
    4.97
  4. Billel H.

    Billel H.

    Master's Degree in Computer Science

    Algeria - Last active: 1 month ago - Tests: 18 - Portfolio: 2

    An outline of my skills and experiences will show what I have to offer, I am professional in: -Web Development : html5, xhtml, CSS, PHP, JavaScript , jQuery, Resposnive Web Design, SEO, xml, ASP.NET using C# and VB -Integrated development environment (IDE): Microsoft Visual Studio 2010, Netbeans, Eclipse, Adobe Dreamweaver CS6. -Database: SQL, SQL server 2008R2, MySQL, Oracle Database, PostgreSQL and Data warehouse. -Programming language: C# ,java , python, Visual Basic, C++. -Office Suite: Microsoft Office (Word, Excel, PowerPoint, Access and Outlook), SharePoint. -Design and Multimedia: Adobe Creative Suite CS6 (Photoshop and Acrobat X Pro). -Operating System: Windows(XP, Vista, 7,8), Linux(Ubuntu, Red Hat), IOS. -Networking: Open Systems Interconnection (OSI) model, Internet protocol suite (TCP/IP) model, LAN, VLAN, WAN, DNS, DHCP, switch, Access point and Router Configuration. -Modeling language : Unified Modeling Language (UML) and Merise. -Architecture and Mechanical engineering: Technical drawing, Architectural drawing. -Management: Human Resource management. -languages: English, French and Arabic. I am at your disposal to DO THE BEST.

    $25.00 /hr
    82 hours
    4.79
  5. Muhammad Ali

    Muhammad Ali

    Unity3d , Cocos2d-x , Native , iOS , Android, Apps and Games Developer

    Pakistan - Last active: 1 day ago - Tests: 2 - Portfolio: 17

    6 years of experience in apps and games development for smart phones especially for iOS and Android platforms. I do work with whole heartedly and make my work really useful for others as i have 100+ featured apps/games on app store which i have developed and made them successful. Extensively used tools/libraries that i use for development/code: * Unity3D * Cocos2d-x. * Cocos2d. * Box2D. * Java, Android Development. * Objective C, iOS development [UIKit, Foundation, etc] I love coding and do it passionately for making games for iOS and Android. EXPERIENCED in making multiplayer game by using own servers and Game Centre. EXPERIENCED in making games that really entertain user and have fun, EXPERIENCED in making server based games as i have much experienced on that. EXPERIENCED in models in unity are required to manage memory very well. I know how to incorporate Chartboost,Tapjoy,Flurry,iAds,AppLovin,PlayHeaven,Apsalar,Revmob,Admob,iAds, Parse.com, Testflight, HeyZap.

    $44.44 /hr
    2,219 hours
    4.72
  6. Piotr Król

    Piotr Król

    Embedded Systems Consultant

    Poland - Last active: 2 days ago - Tests: 5 - Portfolio: 6

    Hello, I'm a Embedded Systems Consultant with over 7 years of professional experience. I was involved in firmware development and low level programming for microcomputer (x86, ARM) and embedded (ARM, AVR, MSP430) CPU architectures. I'm looking for challenging projects in area of embedded systems, general purpose low level programming and reverse engineering. Areas of expertise: * BIOS/UEFI/EDK2/Tianocore framework * Board Support Package development and integration (Buildroot, Crosstool-NG, U-Boot, Linux kernel, custom toolchains, GCC, GDB) * Internet of Things (IoT) consulting, design, development and integration, wire/wireless communication Hands on experience: * CPU/MCU/SoC/PCH: * Intel microarchitecture: Sandy Bridge, Ivy Bridge, Haswell, Broadwell, Skylake * Intel PCH: Ibex Peak, Lynx Point, Sunrise Point, Patsburg, Wellsburg * BCM2835 (Raspberry Pi) * Allwinner A20 (Cubietruck) * ATmega328 (Arduino Duemilanove) * TI CC3100/CC3200 (LaunchPad) * TI CC2541 (SensorTag) * TI MSP430 (LaunchPad) * Amlogic S805 (Odroid C1) * Samsung Exynos 5 Octa (Odroid XU3) * NXP LPC13xx * Nordic NRF24L01 * Nordic NRF51822 * Espresify ESP8266 * Operating Systems development: * Linux * Android * FreeRTOS * TI-RTOS * Debugging: ACPI, PCI, USB, Storage (SATA, SAS, MMC/SD) * System emulation and simulation (Simics, QEMU, Virtualbox) * Embedded systems test automation

    $44.44 /hr
    218 hours
    4.70
  7. Damian Burrowes

    Damian Burrowes

    Software developer specialising in automated trading

    United Kingdom - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    Over the past years I have developed desktop apps, web pages, spreadsheets and databases for many private clients. My speciality though, has been automating the trading strategies of forex traders. I also have a portfolio of my own strategies that I trade with. I have only recently started using oDesk to find work but am hoping to build my reputation quickly.

    $39.00 /hr
    8 hours
    4.98
  8. Muhammad Jawaid Shamshad

    Muhammad Jawaid Shamshad Agency Contractor

    Ecommerce, Project Manager, WordPress, PHP/MySQL/LAMP, HTML5/CSS3/JS

    Pakistan - Last active: 1 day ago - Tests: 23 - Portfolio: 18

    For over more than a decade I have managed and developed a wide range of applications including servers, websites, and desktop applications for startup companies, small and medium sized businesses, and as well for large companies. My core competency lies in system architecture, project management, and development of new applications and systems as well existing running projects. I have experience in variety of technologies including C/C++, C#.Net, HTML5, CSS3, Javascript, PHP, ASP.Net, Perl, Tcl, MySQL, MS SQL Server, on both Linux and Microsoft Windows platforms, as well as WordPress, Google Apps Script, CodeIgnitor, WooCommerce, OpenCart and lot other ecommerce platforms.

    Groups: Application Developers Alliance, BigCommerce...

    Associated with: Ibexoft Solutions Agency

    $55.56 /hr
    1,273 hours
    4.85
  9. Bruno F.

    Bruno F. Agency Contractor

    Information Technology Consultant

    Uruguay - Last active: 20 days ago - Tests: 4

    My objective is to help people understand what technology can do for them. The past year I've been deep diving both Odoo (v8) and openerp (v7), doing extensive customizations on the base modules (especially the accounting related modules), plus developing a custom tailored application with over 2000+ total programming hours, serving as the lead programmer and technical analyst. I'm a top of the line programmer, with varied experience, ranging from web programming, server infrastructure and databases, up to openGL based games, scientific computing and machine learning. While I'm technically proficient, the main attribute that differentiates me from most programmers is that I dig deep when thinking about businesses, using my skills as leverage to help clients make more money. Drop me a line at bfigaresvillalba@gmail.com if you want to discuss a project.

    Associated with: TDT Consultants

    $50.00 /hr
    225 hours
    5.00
  10. Abhishek R.

    Abhishek R. Agency Contractor

    Data Scientist

    India - Last active: 1 day ago - Tests: 3

    I am an Analytics Professional with rich background of analytics, modeling, model validation and reporting in domains of financial analytics, equity valuation, financial engineering, trading algorithms and credit risk analytics. I am proficient in statistical modeling in Forecasting/Predictive Analytics, Segmentation Methodologies, Regression Based Models, Hypothesis Testing, Factor Analysis/PCA, Conjoint Analysis, Scorecard Modeling, Artificial Intelligence (Neural Networks, Genetic Algorithm, etc), Optimization Techniques, Co Integration, VAR, VECM, text scoring, image processing, real time video analysis, etc. I also have a rich experience of building user friendly reports to give better visibility of business and aid Strategy & Planning. I have extensive experience in various statistical tools like R, SAS, SPSS, Matlab, Minitab, Octave, Stat. I am extremely conversant with algorithms. I am skilled in different programming laguages like C, C++, C#, Java, Python, CudaC as well as functional programming languages like F#. I am experience in Big Data analytics like Hadoop using NoSQL, Mapreduce framework, Hive and Pig scripts. I have experience in developing models using Excel VBA. I am currently pursuing CFA (Level II candidate) and FRM (Level 1 Candidate). Demonstrated Success record in:  Statistical Arbitrage in Pairs trading strategy using Co Integration, VAR, VARMA, VECM approaches  Value-Growth-Cash investing  Valuation of Structured Products  Sentiment analysis using text scoring (naive Bayes, regressive models, Machine learning and EM algorithms)  Market Efficiency analysis to identify pockets of inefficiency in emerging markets  Developing statistical models for credit risk estimation for wholesale loan portfolios  Developing models for economic capital required under Basel II norms  Develop equity and fixed income valuation models  Pricing models for products/services in Pharmaceutical sector, Energy sector, etc. ......and many others

    Associated with: FinArb Analytics Consulting

    $44.44 /hr
    2,368 hours
    4.95