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. Patrick S.

    Patrick S.

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

    United States - Last active: 13 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. 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
  3. Muhammad Jawaid Shamshad

    Muhammad Jawaid Shamshad Agency Contractor

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

    Pakistan - Last active: 3 days 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
  4. Abhishek R.

    Abhishek R. Agency Contractor

    Data Scientist

    India - Last active: 19 hours 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
    2,384 hours
    4.95
  5. Arthur P.

    Arthur P.

    Mobile App Developer

    Brazil - Last active: 4 months ago - Tests: 5 - Portfolio: 2

    Extremely skilled app developer which uses Titanium platform for developmin iOS and Android applications. Already developed apps with lots of different features like camera integration, playing audio and video, animations, accerelerometer, gestures, maps , facebook integration, local storage and remote storage, REST API integrated apps, streaming and much more. The right person to take your idea out of the paper.

    $49.80 /hr
    28 hours
    5.00
  6. Jacob Merchant

    Jacob Merchant

    Spreadsheet Guru and Workflow Specialist

    United States - Last active: 3 months ago - Tests: 3 - Portfolio: 1

    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
  7. Stephen D.

    Stephen D.

    Technology Specialist

    United States - Last active: 12/15/2014 - Tests: 8 - Portfolio: 2

    Over the last decade or so, I have dedicated my life to the advancement of technology in all its forms. I have created numerous websites, databases, programs and specialize in audio/video integration and system design as well as room automation and signal processing. If I had to say I had any one real skill, it would have to be that I am profoundly good at building a better mousetrap. I must admit that there are times when I have difficulty creating things from scratch, but with a little inspiration I can take a project to a whole new level of design and implementation. I have experience in C/C++, MySQL, PHP, JavaScript, HTML/DHTML/XHTML and am moderately proficient with Lua, Ruby, Perl and VisualBasic, but not enough to brag about. I can interpret most programming languages easily enough.

    $11.11 /hr
    120 hours
    4.96
  8. Asena Dadon

    Asena Dadon

    financial and buisness consultent, project manager, software programm

    Israel - Last active: 01/19/2011 - Tests: 3

    I have about 25 year in the industry as a consultant, management, research and as a programmer. I also have 8 years of experience in the academy as a lecturer and as a researcher. In last 5 years I got experience in political, economic and marketing strategic consultation. I also consult individuals. In addition, I also have experience in product marketing and risk assessments. Over the last 10 years, I have developed a wide range of websites including start up companies, and also small software projects. My core competency lies in my end-to-end system provision, modular approach, creativity and good time organization. I am seeking to assist you from the ground up for you or your business.

    $11.11 /hr
    0 hours
    5.00
  9. Harsha Khatri

    Harsha Khatri

    SAP BI Consultant, Web developer, Excel Expert, Article writer

    India - Last active: 05/23/2013 - Tests: 4 - Portfolio: 6

    My career goal is to utilize my knowledge and attitude for the profit and growth of the Organization as well as myself in the competitive market. With my experience in SAP BI I can play a role of a consultant who can create the reports on the historical data that can be used by Business to analyze their previous performance and Plan their future accordingly to increase Productivity and growth of the Organization.

    $11.11 /hr
    7 hours
    4.92
  10. Atul Shimpi

    Atul Shimpi

    Atul Shimpi

    India - Last active: 22 days ago

    Hello/Buon giorno/Guten Tag Myself Atul here. Thanks for visiting my profile. Creating quality software is not my hobby/passion but attitude. All i can say is that "Give me an idea or problem and take the solution from me" My Skills -400 hours of Ruby on Rails and AWS experience on oDesk -Ruby on Rails - 3 years exp -Bootstrap, haml, TDD/BDD/CI -Strong in OOPS -Good in writing reusable and maintainable code I had oppurtunity of working with fortune 500 folks like on domains such as Finance/Medical/Search Advertising. That sums up what i can offer to you. So, what are u waiting for. contact me. Yours truly, Atul

    $22.22 /hr
    380 hours
    5.00