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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, 203 C projects are completed every quarter on Upwork.

203

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 4.76.

4.76
Last updated: August 1, 2015
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  1. Pasqualino Ferrentino

    Pasqualino Ferrentino

    Software Architect

    Italy - Last active: 16 hours ago - 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
    7,116 hours
    4.97
  2. Aayush Jindal

    Aayush Jindal

    Software Engineer/ QA Tester, Forex Writer/ Forex Analyst

    India - Last active: 16 hours ago - Tests: 2 - Portfolio: 4

    SOFTWARE ENGINEER, QA ENGINEER, QA, FOREX MARKET ANALYST and FOREX WRITER. I have more than SEVEN years of experience in Software Environment including Development and Testing in Domains like Insurance, Accounts, Networking and Security. FOREX: I also follow Financial and Forex market closely and working as a professional Forex Analyst and writer. My content is daily published on top Forex sites such as FXSTREET and FOREXCRUNCH. I have more than five years of experience in the Forex market as an analyst and possess strong technical and fundamental analysis skills. MORE on SOFTWARE SIDE: I have worked in several Technologies for Software Development including Java and .Net. I have also Worked using Duck Creek Technology for Horace Mann Insurance, USA. I am seeking for some quality work to show my analytical, problem solving, communication skills and fast learning abilities.

    $6.00 /hr
    4,024 hours
    5.00
  3. Sourabh Aryabhatta

    Sourabh Aryabhatta

    5+ Years Experienced Upwork-certified Top Rated IT Consultant

    Bangladesh - Last active: 16 hours ago - Tests: 21 - Portfolio: 30

    ★ Certified EPUB & Kindle Expert (top 10% in CSS Test & top 20% in HTML Test) ★ Certified JIRA Expert (top 30% in HelpDesk & Software Testing Test) ★ Invite me, if you are serious about your project. I offer the following exclusive services. ✔ Formatting & Conversion (eBook interior) Service ✔ Publishing (over Online eBook Stores) Service ✔ Atlassian JIRA Consultancy Service ✔ Web Design, Web Development & Publishing Service ✔ Graphics Design (eBook cover) Service Here is the details information. ► Formatting & Conversion (eBook interior) Service is offered for the following stores. - Amazon CreateSpace - Amazon Kindle Direct Publishing (KDP) Store - Apple iTunes Store - Barnes & Noble - BookBaby - Smashwords (Premium Catalog) *** For paperback version, it is mandatory to maintain the print quality & platform standard. So I need to take care of the following features. ✔ Inside & outside margin and bleed ✔ Table of Contents ✔ Header, footer & page-number ✔ Print Quality image ✔ Interior formatting (with correct spacing & styles) ✔ Fully illustrated children picture book (full bleed) *** For electronic (mobile-friendly) versions, automated tools can never deliver great results that we expect. That's why I always use hand-written HTML & CSS to develop 100% error-free epub and mobi format that cover all the online eBook stores successfully. I can work with any digital format (doc, docx, odt, pdf, ppt, indd, .pages), though I do prefer word document format among them. Additionally I can take care of the following features. ✔ "Look Inside" (first 10% visibility over Amazon KDP Store) feature ✔ Clickable Table of Contents (linked to titles) support ✔ Navigation Progress Bar (NCX View) support ✔ 100% reflowability with advanced Interior formatting (styled paragraph, list, table, text-box, hyperlink, dropcap) support ✔ Full screen image support for any kind of mobile device ✔ Panel View support for comic / manga book (KF8 format) ✔ HD Quality Image (text-wrapped) with caption support ✔ Custom font (font-family, size, color) support ✔ Multimedia (audio, video) support for KF8 format ✔ "Text-to-Speech" feature ✔ Delivery cost minimization support ✔ Orientation-Lock (portrait / landscape) support ► Publishing (over Online eBook Stores) Service is offered for the following stores. - Amazon CreateSpace (Amazon Paperback version) - Amazon Kindle Direct Publishing (KDP) Store - Barnes & Noble - BookBaby - Smashwords (Premium Catalog) *** Regarding publishing, all you need to do is to provide me some basic information of your book (title, author name, book description, category, keywords, price, ISBN etc) along with the target store's credential. It is a complete publishing package including the following services: ✔ Publishing and Monitoring until the book goes LIVE ✔ Fixing technical issues (if any) ✔ Promotional Consultancy (if needed) ► Atlassian JIRA Consultancy Service is offered for software development companies who want to use Atlassian JIRA (or already using Atlassian JIRA). *** Being a Certified HelpDesk Professional (scored top 20% in Help Desk Certification Test, Management Skills Test and Technical Writing Test), I have been working with Atlassian JIRA (Cloud Version) successfully since last 5+ years. I am very much able to configure Agile Boards (Scrum or Kanban), grooming backlogs, planning Sprint releases, tracking time-sheets (using Tempo plugin), explaining burn-down chart etc. Additionally I can take care of the following administrative actions. ✔ JIRA Project Access ✔ JIRA Permission Scheme ✔ JIRA Issue-Security ✔ JIRA Workflow ✔ JIRA Agile Board ✔ JIRA Issue Screen, Fields, Components, Versions etc. ✔ JIRA Report (using JIRA Issue Filters) ✔ JIRA Plugin Consultancy ✔ JIRA Training for freshers ✔ JIRA Documentation I can help in doing some third-party integration as well, like email-to-ticket creation, Zendesk-JIRA integration, Salesforce-JIRA integration. I have basic knowledge in using Atlassian OnDemand (Confluence) as well. I have received Six Sigma Black Belt Certification from Upwork too. Overall, I am always ready to provide effective consultancy on Atlassian OnDemand products. ► Web Design, Web Development & Publishing Service is offered for the following areas. - Static Website Template Customization - Wordpress, Joomla etc (PHP, MySQL based) Installation & Customization - Opencart, Zencart, Woocommerce etc (eCommerce platform) Installation & Customization ► Graphics Design (eBook cover) Service is offered for the following stores. - Amazon CreateSpace - Amazon Kindle Direct Publishing (KDP) Store - Apple iTunes Store - Barnes & Noble - BookBaby - Smashwords (Premium Catalog) *** Additionally I can design attractive 3d cover for you, so that you can use it for promotional purpose. ► I am looking for opportunities to build long-term relationship with my future employers and to build myself a good reputation through my diligence, hard work and top quality service.

    $15.00 /hr
    2,427 hours
    4.73
  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. Kristian Josef Delos reyes

    Kristian Josef Delos reyes

    Labview, Java, Web, Arduino, Arm Programmer, / Graphic Artist / Design

    Philippines - Last active: 20 days ago - Tests: 3 - Portfolio: 31

    Graphic Artist Duration: 8 years ++ Skill Set: Print Media, Graphics, Web design/Layout Technology: Adobe Photoshop CS2-CC , Mild 3Ds Max Electronics Hobbyist and Consultant Duration: 8 years++ Skill Set: Schematic Design, PCB Design, PIC16 Programming, Arduino, Arm Programming, robotics projects, undergraduate and masteral thesis. Technology: SMS, Blutooth, Serial, Parallel, GPIB, I2C, SPI, RF, RFID, Smart Card, Arduino, ARM, Pic, C, Altium, Proteus, IAR, PicBasic, VB6, C#, SDIO, RMII Embedded Systems and Systems Integration Duration: 5 years++ Skill Set: Planning, Architecture, Design, Packaging, Programming, Debug, Implementation, Maintenance, SMU, Data Acquisition, Data Logging, Multiplexers, Realtime, Sensors, Linux basic navigation and scripting Technology: ARM, Labview, NI PXI, NI CompactRio, NI USB, Arduino, Java, C#, VB6, JSP, VB6, MySQL, MS SQL, Postgres , C, C++, PHP, FTP, TCP/IP, UDP, GPIB, Serial, Parallel, Linux Software and Web Development Duration: 2 years++ Skill Set: Planning, Architecture, Design, Packaging, Programming, Debug, Implementation, Maintenance, Technology: Labview, Java EE/SE, Visual Studio, JSP, Struts MVC, Spring MVC, PHP, Joomla, CodeIgniter, Cakewalk, Drupal. MySQL, MS SQL, Python, Mild Android, Google Graphs APIs, Javascript, HTML5, Responsive Design, CSS. My passion entails on research and development or Software Development with touches of art and elegance. Also add the love for electronics and integrating computer science and electronics to create amazing things. I am a dynamic person, and I don’t stop on what I know.. I continue pursuing towards perfection. I continue to study and study to improve myself more and more.

    $20.00 /hr
    500 hours
    4.98
  6. Abbas Ali

    Abbas Ali

    Expert software Testing Engineer

    Pakistan - Last active: 2 days ago - Tests: 2 - Portfolio: 5

    Challenge to ensure quality of software. I am a dedicated and well-trained QA consultant and can be a great asset to your projects. Test Efforts includes manual & automated testing of Web, Desktop & Mobile (iOS, Android, Windows Phone, Blackberry and J2ME) apps. Leading role in Test Planning, Manual & Automated Test Case Designing, Test Execution and Bug Reporting. Hands on experience in all areas from Requirement. Areas that I have already covered include, ~ CRM Testing ~ Testing of Financial apps ~ Testing of E-commerce apps ~ Testing of Social Media apps ~ Testing of Educational apps ~ Testing of Health Care apps ~ Testing of Financial apps ~ Testing of Tourism apps ~ Testing of Telecom apps ~ Testing of Web Services & APIs ~ Financial Middleware Testing ~ Debit Card Production Testing ~ Bill payment Solutions Testing

    $8.00 /hr
    10 hours
    5.00
  7. kartic thakral

    kartic thakral

    Research, Data Mining, Data Entry, Excel, C++

    India - Last active: 1 day ago - Portfolio: 1

    "Time is money, you give me money, I'll give you time." This is my motto. I'm a part time freelancer based in Delhi. Delivery on time with 100% accuracy is something what you can expect from me. I'm the Best person to be hired for online research work and data entry. Having a good and fluent English. Good at social networking. Can dig out any information from internet if sufficient details are provided. I enjoy working for utilizing my extra time and earning money. If Client is satisfied, i'm satisfied.

    $5.00 /hr
    51 hours
    4.99
  8. Hasnat Safder

    Hasnat Safder

    Web Developer

    Pakistan - Last active: 14 days ago - Tests: 1

    Hi , i am a web developer in both PHP and ASP.net , and also excellent in JavaScript , J query . I have also developed several websites in Joomla , Moodle and codeigniter . I am also an expert in windows form software in .Net. I have also worked in several GIS projects and can do wonders in the world of maps like google maps and open street maps. Plus i have one huge advantage over others that i can copy anything , any design or working in the world of websites or desktop , i can make you exactly similar one .

    $10.00 /hr
    43 hours
    5.00
  9. Varuzhan Sargsyan

    Varuzhan Sargsyan

    C/C++/VC++, C#, Android Java

    Armenia - Last active: 1 month ago - Tests: 4 - Portfolio: 4

    Over 5 year I was freelancer and have developed the Android applications. Made few apps which are on Google Play now and which are very perspective projects. And more then one year, I'm working as Senior Android developer in company. Look into my portfolio to find the project links I have freelancer experience working on C# windows forms, WCF, MS SQL Server. Project Internal Audit System with 10.000 clients. Project is working nowdays beginning from 2011. Duration of working period takes more then 2 year. Biginning from 1997, I developed in 3-4 companies and have experience in c/c++ programming language, using all Visual Studio versions. I made a lot of programs for a few companies and a production. Using strong knowledge, experince, my programs made companies work more easy and automated. Also I can speak English, Russian, Armenian, and the draft software for production was made using Russian language(menus, messages and all other tools).

    $20.00 /hr
    73 hours
    5.00
  10. Andriy M.

    Andriy M.

    Web Developer / Programmer / Wikipedia expert

    Ukraine - Last active: 5 days ago - Portfolio: 8

    I'm a programmer and Wikipedia expert. I create websites and develop software with Python/PHP/C. In love with sophisticated algorithms and problem solving. I have a degree in computer science (with emphasis on applied math), and I successfully completed one year of masters program in economics. I edit Wikipedia in my spare time as a long-standing hobby (10+ years), but I do paid consulting and article writing as well. Will be glad to help with your issues on this! Graphic design tasks can be done by my good friend. And he is great!

    $15.00 /hr
    1,039 hours
    4.94