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. Anton S.

    Anton S.

    Senior iOS developer

    Belarus - Last active: 4 days ago - Tests: 15 - Portfolio: 15

    Software developer for more than ten years. Started my first iOS application back when iOS SDK was introduced. Since then I had explored plenty of dark corners of iOS ecosystem and this really helps me to pick the right tool for the job. I am self-motivated agile worker. Always friendly and proactive in communications which makes me a good team member/leader. I have extended experience with following technologies: Apple native frameworks - from UIKit/Autiolayout and CoreData down to OpenGL, CoreAudio and Accelerate.framework Ad-Hoc app distribution - Testflight, HockeyApp, ; In-House app distribution Project management - JIRA, RedMine Continious integration - TeamCity, Jenkins My code contains best practices, always clean, self-documented, editable, localized and synchronized. Most of UI is in storyboard. I can use any VCS, but git is my favourite one. My experience is not limited by C / Objective-C / Objective-C++ / Swift. I have experience in backend development so it is not secret "where it all comes from" or how to report a bug. oDesk officially recognises me as one of the best mobile developers for the projects I have worked on, my work history and communication skills.

    $44.44 /hr
    1,588 hours
    5.00
  2. Alexander Kozlov

    Alexander Kozlov

    Top level professional Architect and SW engineer

    Russia - Last active: 29 days ago - Tests: 21 - Portfolio: 4

    Make things done! I'm a professional C/C++ developer with more than 12 years of experience. I have been working both for a companies from Fortune 500 list, and a small local companies. My core competency lies in the world of mobile applications, SaaS and PaaS, desktop software and games development. I love to do my work right and really enjoy being respected for the things i do.

    $55.56 /hr
    1,772 hours
    5.00
  3. K thomas L.

    K thomas L.

    Analog and Digital Designer - Over 20 yrs. Exp.

    United States - Last active: 13 days ago - Tests: 2 - Portfolio: 1

    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
    2,533 hours
    5.00
  4. Sergey Lalov

    Sergey Lalov

    Corona SDK, iOS, Android Game Developer

    Russia - Last active: 1 month ago - Tests: 3 - Portfolio: 12

    Expert in Lua and Corona SDK. Developing cross-platform mobile apps and games. iOS (iPhone, iPad) and Android. Earned Corona Ambassador title. Advanced skills in making native plugins for Corona Enterprise (Objective-C, Java, C). Using Go and Google App Engine for backend development. Great programming background: C, Python, JavaScript, PHP. Expert in networking: TCP, UDP, HTTP, REST, JSON, etc... Expert in Linux based OS (Ubuntu Server is preferable). Advanced skills in Graphics Design - Photoshop, Pixelmator and iDraw. My website - http://spiralcodestudio.com/

    Groups: Corona Labs

    $55.56 /hr
    658 hours
    5.00
  5. Ouahib El Hanchi

    Ouahib El Hanchi

    Programmer / Developer

    Morocco - Last active: 7 days ago - Tests: 5 - Portfolio: 4

    I am a talented programmer and developer with years of experience and educational training. I am willing to work as a team member and also autonomously for your project. I have also worked for many years of my career as a C/C++ programmer and as a web designer. I also have experience many other programming languages to name a few : Python, PHP, Perl, JavaScript ... And also working with different DBMSs. I got experience also in data entry, data processing and document formatting. I will deliver my best work at a high standard. I look forward to being hired by you for your jobs.

    Groups: LoginRadius

    $50.00 /hr
    11 hours
    5.00
  6. Andres Olvera

    Andres Olvera

    Expert Wordpress/PHP developer | Scripting expert

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

    I have lots of experience building and enhancing WordPress plugins and building themes from scratch. My main strengths are: - Clean coding - 100% Wordpress coding standard compliant - Availability - usually respond within 5 to 10 minutes to any queries during CST workhours - Fast and top quality work I also have experience developing web pages using Perl and/or PHP, Javascript/jQuery, VBScript, CSS, Ajax and MySQL databases. I worked for a Fortune 500 automotive company in a reporting and analysis position, and also building and maintaining a website in the company's intranet using Perl and MySQL. After that I was in charge of supporting a website built with Java and the Spring framework, using both MySQL and Oracle databases, for customers worldwide. I also worked at the tech support helpdesk for that same company for over a year, troubleshooting Linux servers and workstations, networking and other data related issues. I was also in charge of administering KBOX ticketing system for over a year, from content management to database administration, to scripting solutions for its customers. I also have knowledge in scripting using different technologies, such as VBScript, Javascript, Linux shell scripting, Perl, and some Powershell, as well as VBA for Excel and HTAs. I was also regularly troubleshooting C and Java programs for bugs and/or enhancements. After that, I moved to a company named Softtek as a Software Engineer, I was part of a team that develops Wordpress plugins and themes for an American multinational conglomerate corporation. The last position I held was for yet another company as a Linux intermediate administrator, where I was in charge of managing users with Centrify and I also installed Cacti to monitor some of the company's servers running CentOS. Currently, I work on my own mostly developing Wordpress plugins and themes. I have specialized myself working on web development, mainly PHP with MySQL databases, but also Javascript/jQuery for the front end.

    Groups: Bluehost Developers and Designers, LoginRadius

    $55.56 /hr
    90 hours
    4.96
  7. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    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
    1,543 hours
    5.00
  8. Ian M.

    Ian M.

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

    Netherlands - Last active: 2 days ago - Tests: 4 - Portfolio: 6

    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

    $80.00 /hr
    1,090 hours
    4.98
  9. Wolfgang Weisser

    Wolfgang Weisser

    Software-developer for over 30 years now.

    Germany - Last active: 1 day ago - Tests: 7 - Portfolio: 7

    Unmoegliches erledigen wir sofort, Wunder dauern etwas laenger. (The impossible we do at once, miracles will take a little longer.) Expertise in C, C++, Assembler, batches, shell-script, sed, awk, perl, python, ruby, PHP, SQL. - developed dozens of client-/server-applications - designed hundreds of DBs and DB-applications - developed thousands of web-scripts, CGI as well as Javascript, jquery and ajax - customized and administrated many CMSs like WordPress, Joomla, Drupal, Typo3 or shop-systems like magento, PrestaShop, zendcart Besides of a lot of experience in modern web-developing based on CMSs, (My)SQL and PHP or Java, python, ruby or node.js I also have got practice for decades in programming with C, C++, Pascal, Modula2 and all kinds of SD(K)-tools as well as all kinds of script-languages like sed, awk, Perl, python, ruby or shell-scripts.

    $45.00 /hr
    36 hours
    5.00
  10. Patrick S.

    Patrick S.

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

    United States - Last active: 26 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