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Operating Systems Development Job Cost Overview

Typical total cost of Upwork Operating Systems Development projects based on completed and fixed-price jobs.

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On average, 2 Operating Systems Development projects are completed every quarter on Upwork.

2

Time to Complete Upwork Operating Systems Development Jobs

Time needed to complete a Operating Systems Development project on Upwork.

Average Operating Systems Development Freelancer Feedback Score

Operating Systems Development Upwork freelancers typically receive a client rating of 4.67.

4.67
Last updated: September 1, 2015

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  1. Diego Augusto De Faria Barros

    Diego Augusto De Faria Barros

    Developer & Translator

    Brazil - Tests: 10

    I have experience in Computer Science with emphasis in Information Systems, specially on the following topics: Design and development of systems (implementation, analysis and design), databases and information processing. I Also, do translations and proofreading of English and Portuguese texts.

    $16.67 /hr
    515 hours
    5.00
  2. Andrei Volkov

    Andrei Volkov Agency Contractor

    Linux specialist (Sec/Opt/Dev, C/Perl/Python/PHP/BASH)

    Belarus - Tests: 5 - Portfolio: 13

    Important: ------------------- Enhanced shield of your Web application with mod_security! Should be always. It is task #1 after installation ANY web application! ------------------- About Me and more: ------------------- I have over 16 years of work experience with Linux systems. This is the list of software and technologies with which I deal. This list is not full and expands day by day. I always can find right decisions if I found some problems. And I am always interested in looking for mostly economical and productive solutions. Of course, Cpanel, WHM, Webmin, Plesk .... I know how are working these web-wrappers and I support their. I can will tune and to make the checking of these wrappers. But that more important !! I can work without this))) Directly use configuration files of services and etc etc. Usually, it is better way on dedicated servers. ) TCP, IPv4 , IPv6, IPX ... - WiFi, WEP, WPA, WPA2 ... - SElinux, Apparmor, Smack, Tomoyo ... - LAMP ( Apache, Nginx, PHP, Perl, Mysql, Mongo), REDMINE ... - Cpanel, Zpanel, ISP ... - MySQL clustering and replication DNS servers ... - SENDMAIL, EXIM, POSTFIX (POSTFIXADMIN,MYSQL,DOVECOT,POLICYD) ... - HPC system: Torque, Maui, Moab for HPC clusters, Infiniband, FC interconnect, iSCSI, SCST, DRBD, OFED, OPENMPI ... - OpenLDAP ... - VPN with OpenVPN, PPTP, StrongVPN ... - Nagios, Zabbix, Ganglia, OSSEC ... - SVN, CVS, GIT ... - KVM, Xen, OpenStack, Proxmox ... - NBD, RAID, LVM ... etc etc During these years I have been in a large number of tasks related to administration of network devices, as well as with simple and complex server systems. I manage servers for the HPC tasks and for network infrastructure of Internet and Intranet - DNS,DHCP,*FTP,HTTP(S),MAIL etc etc. The main goals - the monitoring of the performance and the security. I also implement tasks of data backup and troubleshooting, support for the users. I have comprehensive work skills with systems based on Debian, Redhat, CentOS, SLES, OpenSuse. I've got more than 8 years of experience in developing the different software with use of C, Perl, Python, Bash, HTML on system and user levels. For example, very important skill in developing and the modification of RPM packages (rpmbuild, rebuild, kernels), custom kernels and etc etc. ------------------- Often: ------------------- How the standart service for VPS's and VDS's projects and dedicated servers: IDS, IPS, the control of contents of log's files, the control of load of the cpu, the memory, the hard disks; the backups of the databases and the files; install or update software, consultations. Emergency call via sms to cell phone. ------------------- STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. VERY OFFTEN: IF YOURS WP WAS HACKED 1. disable plugins 2. execute # diff -r dir1 dir2 3. repeat for plugins if you have last version of WP code: ~ 80% cases - problems: plugin low quality (look on author: from where and who is) ~ 15% cases - problems: theme low quality (look on author: from where and who is) ~ 5% 0day of WP also you need disable all shell function in php and enable suphp/suexec modes. STOP Windows and U/K/buntu etc. TIPS WITHOUT PAYMENT: ------------------- 1. I am getting a lot questions about reliability and quality distributives/clones Ubuntu. Results on practice - Ubuntu clones - worst for server. It is truth. If you $buntu guy, I can't help you right now. I only can recommend Debian way for server. =============== 3. Nginx of course is good program. For small/middle vps. But in serious projects - apache. Nginx will be suitable for frontend. It is only practice. Always for all web application should be mod_security module. Firewall of level of web application on 7 level of OSI. Each web application/site should be under own user in environment of vps or on dedicated servers. =============== 4. By topic Wordpress. For optimisation services of OS , namely system IO(type of disks or partitions) and DB(type of engines of tables), need to use empty installation (default variants). Most problems of work WP contains in itself - customized plugins or themes. For analyze pages need begin with such services as http://gtmetrix.com. =============== Sunday - day of rest. Or in emergency case - payment with double rate. best regards, Andrei odesk.by / upwork.link PS: With love from USSR. ;-)

    Associated with: UPWORK.LINK

    $16.00 /hr
    1,012 hours
    4.98
  3. Salahuddin Razib

    Salahuddin Razib Agency Contractor

    Server Administrator, Automation, Script, C++, VC++, AutoIt, imacros

    Bangladesh - Tests: 10 - Portfolio: 2

    Virtual Assistant, Programmer and Automator. Can do Ad posting and Lead Generation. I can make web bots, I have good experience in windows automation. I have worked with AutoIt, imacros, Sekuli, winautomation, autohotkey etc. I can fix any hardware, network and OS related problem of PC or Server. I have good experience in troubleshooting and virus removal. I have experience in web scraping too. I am a system administrator, I have good experience in Linux and Asterisk. I also want challenging Development and Programming position where i can apply my technical skills and experience to facilitate the success of complex and large project. I want established my self as a professional software developer and programmer, so that over last 8 years I have developed wide range of desktop application for my clients using VB, .NET, C#, C++, Delphi, MySql, Access.

    Associated with: Interwave

    $12.00 /hr
    134 hours
    4.56
  4. Tharindu Ranasinghe

    Tharindu Ranasinghe

    Software Engineer

    New Zealand - Tests: 4 - Portfolio: 6

    With a BSc in Computing and a MSc in Artificial Intelligence I have a full understanding of the full life cycle of a software development as well as how to integrate Artificial Intelligence technologies in to the software design. I also have experience in learning and excelling at new technologies as needed. My experience includes but is not limited to: • Developing complex software using C++/Qt • Developing iOS / Android / Windows Phone 8 apps • Developing software / drivers for embedded systems • Problem isolation and analysis • Software quality testing

    $50.00 /hr
    315 hours
    4.00
  5. Michael Y

    Michael Y Agency Contractor

    Sr. Systems Architect, Mathematician-Astrophysicist and Bio-Geneticist

    Canada - Tests: 2 - Portfolio: 5

    My purpose is to lead, strategize, guide, direct and architect problem resolutions for individuals and organizations using self-sustainable philosophy and decision-making, in order to establish complete systems and processes of solutions that work. My vision is to ensure in every household, institution or establishment, intuitive and organic integration of real-time problem-solving becomes second-nature to the operating environment. I intend to achieve this using my unparalleled knowledge and application of the Synergy between Business Intelligence, Technical Excellence and Organic Sustainability. In other words, I solve problems, using fundamental building blocks that most people and organizations overlook, yielding solutions that can adapt to their environment in real-time. Problem-solving processing can lead multiple resolutions to several problems whereas "a solution" to a problem itself only, usually yields a new problem that need be solved with other solution(s) which may or may not be found within the given scope. This cycle can be vicious and critical but is easily overcome by what we call the "Process" or "Spiral" at Don Sigma Corp. This so-called "Spiral" allows us to solve problems that solve other problems by drawing Synergy between resolutions and fundamental building blocks. With this know-how and several other particulates of Don Sigma Corp.'s unique knowledge and technology at my disposal, you're just a contact away from experiencing your dreams come true.

    Associated with: Don Sigma Corp.

    $111.11 /hr
    0 hours
    5.00
  6. Volodymyr Kostanda

    Volodymyr Kostanda Agency Contractor

    iOS/Android/MacOS/Win/ObjectC/C#.NET/C++/Delphi/Java/Web/JS/ASP/PHP/QA

    Ukraine - Tests: 42 - Portfolio: 41

    Owner and CEO at AdoriaSoft LLC. AdoriaSoft offers full cycle software development services and implements all stages of projects for our customers: - Research and estimation - Requirements definition - Architecting - Development - Graphical design and User experience design - QA - Support and updates Platforms that we develop for: - iOS (iPhones and iPads of different versions) - Android phones and tablets - MacOS - Web - Windows desktop - Windows Server - Windows CE - Windows Mobile PPC and SP 5.0, 6.0, 6.5, 7 editions We - have different real devices for testing (Android phones and tablets, iPhones, iPads of different generations, Macbooks, etc), no emulators. - work with both native and crossplatform frameworks - use an established design/development/testing lifecycle, follow scrum - have our own development servers with tasks management system (JIRA), source control (Git), continuous integration and build server (Bamboo), etc. - can easily work with time zones like PST, EST, etc. - offer high quality and cost effective solutions for our customers Technologies/Languages/Libraries/Frameworks: - ObjectiveC, iOS SDK, Mac OS SDK, XCode - Java, Android SDK - C++, STL, Boost, ATL, WTL, COM, MFC - Windows API, DirectShow, DirectSound, Sockets, Completion Ports, OLEDB, TAPI, GDI - C#, Managed C++, ASP.NET, LINQ, ADO.NET Entity Framework, WPF, Compact Framework, Mono.NET, Monotouch, Xamarin - Appcelerator Platform, Titanium, PhoneGap - MS SQL Server, T-SQL, Oracle, MySQL, NoSQL, MongoDB - Cloud platfoms: Amazon Web Services ( AWS ), Microsoft Azure - Web technologies: REST and SOAP web services, JavaScript rich client libraries, HTML5, CSS3 Our competences: - business automation software - System utilities for MacOS, Windows and mobiles platforms - Information security, cryptography, steganography - client-server applications - Wireless 3G/4G, Bluetooth, WiFi applications - VoIP, voice codecs, data signal processing - Complex Web applications and portals (ASP.NET, PHP, REST web services, JavaScript rich clients)

    Groups: Application Developers Alliance

    Associated with: Adoriasoft

    $29.00 /hr
    15,302 hours
    4.90
  7. Sanil Varghese

    Sanil Varghese

    RN/medical/nursing/article/graphic design/translator/transcriber/NCLEX

    India - Tests: 5 - Portfolio: 6

    I can be the person you are searching for any kind of job in oDesk. I will provide quality articles in English. My articles will pass through copyscape. SEO articles are my area of interest. I do lots of research and then write the articles. I do prepare NCLEX questions and Nursing competetive examination questions. I am a professional transcriber. I have completed medical transcription course. I have done transcription of medical and non-medical files. English-Kannada-Malayalam-Hindi Transcription and Translation works are done. I provide voice over for agencies and websites. To know more about my service.............just hire me.

    $7.00 /hr
    163 hours
    4.83
  8. Samuel K.

    Samuel K.

    Samuel Kamau

    Kenya - Tests: 13 - Portfolio: 9

    I am a trainee engineer specializing in Telecommunication and Information engineering. I am more than talented in penning articles, journals, e-books and publications that leave a mark on every one who gets absorbed into reading my work right from the first paragraph. I pride in diverse and unique techniques of presenting information with utmost clarity, rich in variety of captivating styles of writing. I have honed my writing skills over the years to ably deliver work that wins me accolades from my clients. I am experienced in research and statistical analysis, medical journals, e-books as well as a reports, essays and thesis. I look forward to working for you.

    $8.89 /hr
    989 hours
    4.04
  9. Jojit Ogardo

    Jojit Ogardo Agency Contractor

    Graphics & Web Designer/BiznessApps/SeattleClouds

    Philippines - Tests: 1 - Portfolio: 8

    I am a freelancer specialized in mobile applications, web design/development and graphics design. I also have an experienced in working as a Virtual Assistant contractor. My duty is to ensure the mobile apps meets the established standards of quality including reliability, usability and performance. As part of VA Assistant position, I was also assigned in the Customer Service/Technical Support Group by answering client's/user's emails on issues regarding the mobile applications that we support. Please feel free to contact me with any questions you may have.

    Associated with: Perfect Solution Company

    $8.89 /hr
    185 hours
    3.52
  10. Den Ivanov

    Den Ivanov

    IT Universal Linux Professional

    Russia - Tests: 6 - Portfolio: 5

    I am an open-minded, ready to learn and to make things person, always looking at alternative solutions that helps to create innovative, eco-friendly and people-ish things. And I believe that knowledge belongs to each of us and to all of us, to whole humanity! I have experience in working with opensource/linux solutions: distributions, databases, web servers, built-in solutions etc. Also I am working with Electric Cars, electronics and electrics. Let's move together to greater, greener and creative tomorrow! I've got most of my experience in: Linux, Bash, PHP, HTML(5)/CSS, Perl, Python, automation scripts (crawlers/scrapers/mirroring/downloading), writing applications, C/C++, video (desktop sessions) creating, editing, working with multimedia (audio, images, video). Also I am network security specialist and can help in a variety of situations such as lost passwords, lost access, etc. I can perform a forensics/security test of your web/application to ensure that it hasn't serious security issues. Lastly, I am working with automation and ARM electronics such as Arduino in case for different projects such as 3D printing. For all of this tasks I use free and opensource software. I have many solutions in different situations that can be used as a templates - that is why I am working fast and efficient. Please contact me if you need any further details or information.

    $60.00 /hr
    6 hours
    4.21