Browse Operating Systems Development job posts for project examples or post your job on Upwork for free!

Operating Systems Development Job Cost Overview

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

Upwork Operating Systems Development Jobs Completed Quarterly

On average, 4 Operating Systems Development projects are completed every quarter on Upwork.

4

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 4.66.

4.66
Last updated: August 1, 2015

Popular Operating Systems Development Searches

Clear all filters
  1. Salahuddin Razib

    Salahuddin Razib Agency Contractor

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

    Bangladesh - Last active: 1 day ago - 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
  2. Yuri K.

    Yuri K.

    Red Hat Certified System Administrator

    Ukraine - Last active: 1 month ago - Tests: 5

    I would like to offer my skills as Red Hat Certified (RHCSA) Linux System Administrator. Over the last few years year I've been working as a Level3 Support Representative dealing with Linux and Windows based dedicated servers and Virtual machines, which includes troubleshooting hardware and software issues, management of virtualization software (Xen, Onapp, SolusVM)

    $20.00 /hr
    110 hours
    5.00
  3. Faisal Mushtaq

    Faisal Mushtaq

    Technologist & Business Expert

    Pakistan - Last active: 20 days ago - Tests: 11 - Portfolio: 1

    Over eighth years of experience in IT Operations, Network Administration and IT Technical Support along with my services for HR, Billing and Operations Departments for department restructuring. During the years, I've developed my skills in professional letter writing along with in my area of specialization i.e, Network Administration. I look forward to do more to explore and prove my multi-dimensional abilities.

    $13.00 /hr
    3 hours
    5.00
  4. Andrei Volkov

    Andrei Volkov Agency Contractor

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

    Belarus - Last active: 2 days ago - 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
    992 hours
    4.98
  5. Dannie Lyn Buenaventura

    Dannie Lyn Buenaventura

    Administrative Assistant / SEO Coordinator / Accounts Manager

    Philippines - Last active: 1 day ago - Tests: 6 - Portfolio: 4

    To obtain a responsible position that offers challenge and opportunity, where my knowledge, abilities and qualifications can be fully applied for mutual benefit, thus, contribute to the goals of the company not only to meet but to exceed growth and financial goals.

    $5.56 /hr
    4,604 hours
    4.77
  6. MD. FARHANUR RAHMAN

    MD. FARHANUR RAHMAN

    Web Application, Admin Support, SEO Developer

    Bangladesh - Last active: 2 days ago - Tests: 10 - Portfolio: 5

    Hello, I am Md. Farhanur Rahman, a professional IT Developer from Bangladesh. I am currently working in Admin Support, Online Marketing, SEO and Web Development areas at oDesk. My primary concern is to ensure the perfect and satisfied service to my clients with highest performance. I already completed different Admin Support projects successfully and highly experienced working with Microsoft Office applications, Web Research, Data Processing, Personal Assistant and Project Management areas. I am proficient working with Online Marketing, SEO, Social Media Marketing, Content and Article Writing projects with most creative styles. I am experienced in Adobe Photoshop and Illustrator for Graphics Design Applications. I currently continue my study in HTML, CSS, Java Script, PHP for Web Application Development and WordPress, Joomla! for Dynamic Content Management Systems. Soon I wish to establish my career as a qualified Web Application Developer at oDesk. Thanks for visiting my profile, Md. Farhanur Rahman oDesk Certified Professional

    $4.72 /hr
    5,979 hours
    4.73
  7. Nakul M.

    Nakul M.

    Linux System Administrator, Virtualization, cPanel/WHM, Plesk, DA

    India - Last active: 12 days ago - Tests: 9

    I have 7 years of experience in Linux System Administration, I handle servers based on various distributions and platforms which are as follows; OS : Red Hat Linux, CentOS, Debian, FreeBSD, Ubuntu, Fedora. Platforms : cPanel/WHM, Plesk, Direct Admin, Webmin, Virtualmin, ISPconfig, zPanel. Others : Openvz, Virtuozzo, LAMP, XEN, Solusvm, Veportal, AWS I have extensive experience in end user support via various mediums such as Live Chat, Emails, Tickets.

    $16.67 /hr
    123 hours
    4.90
  8. Ronan V.

    Ronan V.

    All-Around Virtual Assistant

    Philippines - Last active: 4 hours ago - Tests: 12 - Portfolio: 29

    I'm efficient and highly organized. This enables me to be as productive as possible on the job. I pay attention to all the details, and like to be sure that everything is just right. I will do my best to be more productive and work honestly and efficiently. I will suggest what I think is right and help my team members when they need my help. Why you should hire me? Because I am a fast learner, smart and reliable. I work efficiently and coordinate well. Now I'm going to give you a short summary about my skill, I hope it will help you determine about my key strength for your job: * I have over 9,000+ hrs working experience at oDesk. * My hourly rate is low & negotiable but I can provide you best quality work. * oDesk verified ID contractor with good feedback score & good test result. * I'm honest & trustworthy, dependable & fast learner. * I have over 6 years of experience being a Virtual Assistant. * I am available 40+ hours a week for your job.

    $5.56 /hr
    10,925 hours
    4.97
  9. Lisa Waller

    Lisa Waller

    Admn Asst, Buyer, Supply Chain, Transcription

    United States - Last active: 4 hours ago - Tests: 13

    Greetings, I have over seventeen years experience working in administrative roles that includes data entry, customer service, supply chain, procurement, and recently I have offered writing and transcription services. I am articulate and will work with you to achieve the best possible results. I offer many transferable skills that can help you complete your projects when needed. Thank you for this opportunity to introduce myself and my skill set. Lisa-Waller

    $27.78 /hr
    46 hours
    4.79
  10. Teri Robinson-Crowe

    Teri Robinson-Crowe

    Ready to Work for you..

    United States - Last active: 11 days ago - Tests: 9

    I have worked in the IT industry for over 15 years. I am a Certified Computer and Network technician. I pride myself in working hard, and precise to get whatever task completed in a quick, and professional manner. I have worked in customer service, sales, technical support, and many other fields for over 10 years. Whatever you need, I will get it done efficiently and accurately. I always push to learn everyday. There is always something new to learn!

    $10.00 /hr
    8 hours
    5.00