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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.

Upwork Operating Systems Development Jobs Completed Quarterly

On average, 6 Operating Systems Development projects are completed every quarter on Upwork.

6

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

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  1. Faisal Mushtaq

    Faisal Mushtaq

    Technologist & Business Expert

    Pakistan - Last active: 19 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
  2. Andrei Volkov

    Andrei Volkov Agency Contractor

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

    Belarus - Last active: 1 day 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
  3. Adrian Rigo

    Adrian Rigo

    IT Specialist

    Romania - Last active: 4 months ago - Tests: 1

    I have previously worked for Siemens IT Solutions, BBC and currently working for Continental Automotive. - 6+ experience in the IT industry - Experience of supporting large user base of 27000+. - Experience of supporting 2000+ server estate. - Experience of Working in ITIL enviroment. - Experience of working in large organisations Ladbrokes Plc and Siemens IT Solutions and Services/BBC. - Experience in the following technologies; 1 - Windows server 2003/2008 (File Server, App Server, DNS, DHCP, Wins, AD, Terminal Server, IIS, Apache, PHP, Clustering, Load Balancer) 2 - Windows Vista,Windows Seven, Microsoft Exchange 2003/2007 3 - ITIL V3 Foundation IT Service Management 4 - VMware - Vsphere 5 - Citrix 6 - Linux server 7 - Mobile environment (Blackberry, iOS, Android, Windows Mobile, Symbian) 8 - Afaria Mobile Device Management 9 - Lotus Traveler Other skills: MS Office, Outlook. AD, Remedy, Report and documentation, Lan, TCPIP

    $24.44 /hr
    355 hours
    4.95
  4. Mohammed A.

    Mohammed A.

    Network Security and Forensic Expert,Security+,CEH,CHFI,ECSA Certified

    Egypt - Last active: 21 days ago - Tests: 3 - Portfolio: 2

    work for more than 12 years Senior instructor , System Administrator , security specialist , Penetration Testing , IT manager.

    $16.67 /hr
    15 hours
    5.00
  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
    4,601 hours
    4.77
  6. Salvador Ernesto Aguilar

    Salvador Ernesto Aguilar Agency Contractor

    Bilingual Technical Support Specialist

    Nicaragua - Last active: 19 days ago - Tests: 10 - Portfolio: 5

    I have managed IT infrastructure for VoIP service providers, eCommerce platforms such as www.sears.com.mx, www.decompras.com & disrupting service providers such as www.arisface.mx Knowledable in: AWS (EC2, SES, S3, etc), LAMP, GIT, SVN, Memcached, Linux, Windows Server, MySQL, nginx, php-fpm, Asterisk, SIP protocol, Networking & Firewalls. Has also experience and end user tech support for Windows & Mac Workstations and mobile devices. IT Professional eager for challenges with 10+ years of experience in IT and 5+ years Outsourcing Services. Has worked with global organizations and multicultural teams for companies with headquarters in US, Canada, Philippines, Denmark & Mexico.

    Associated with: Top Host LLC

    $15.00 /hr
    0 hours
    0.00
  7. Laszlo Pere

    Laszlo Pere Agency Contractor

    Senior Software Developer, Full-time Freelancer

    Hungary - Last active: 1 month ago - Tests: 7 - Portfolio: 16

    I am a professional software engineer, programmer, developer, Unix/Linux expert. I have many years of experience in programming, computer systems maintenance and machine languages. When I work I always do my job using a machine language and when I can't find one that suits the problem I create my own. I am also a maximalist. I always try to find the simplest solution, write the cleanest code, seek the best implementation.

    Associated with: BorgCollective

    $38.89 /hr
    139 hours
    4.40
  8. Antonio jose S.

    Antonio jose S.

    Senior IT Consultant

    Spain - Last active: 2 months ago - Tests: 3

    - Expert in information security management systems: Implementation of an information-security management system according to Norm UNE ISOIEC 27001, definition of security objectives, indicators, political security, code of best practice, risk management, treatment plan, control access definition, communications and operations, legal compliance, management policies incidents of security, CPD preparation, elaboration of contingency plans, business continuity plans, plans elaboration testing of the continuity plan, design of the applicability statement, product realization, actions preventive corrective action, internal audits, training delivery. - Expert in management of the information technology services systems: Introduction of a management system of information technologies services according to standard ISO 20000, elaboration of service processes delivery (capacity, continuity and availability, service levels, reports of service, security, TI budget), control process (configuration, change), delivery processes, solving incidents (problems) processes, business relationships process (suppliers) relations, internal audits, training. -Software process improvement: Implementation of ISO 15504/12207 (SPICE), internal audits, training. -Technological expert: design and implementation of networks architecture, information systems, backup policies, business continuity plans, servers administration (Linux, Unix, Windows, Mac Os), databases (Oracle, MySQL, Posgree), SharePoint, web servers (Apache, IIS), servers (Tomcat, JBoss, WebSphere) applications, ethical hacking (nmap, telnet, Shell script, ssh), vulnerabilities analysis and treatment (Nikto, Nessus, Acunetix, Grendel Scan).

    $33.33 /hr
    269 hours
    5.00
  9. Michael Y

    Michael Y Agency Contractor

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

    Canada - Last active: 12/10/2014 - 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
  10. Firoj Alam

    Firoj Alam

    Engr. Firoj

    Bangladesh - Last active: 12 days ago - Tests: 3

    To work with sincerity and integrity by online where I will be able to explore my potentials by applying knowledge, skills and experience. I am now working as IT Head in a govt. organization. My experiences are - • Designing and Developing Revenue Management System, Cost & Store Management System. • Coding, testing and troubleshooting the programs using VB (Front End) and SQL Server (Back End). • Maintaining Backup and Restore database in LINUX platform. • Database programming using groovy (JAVA) for developing customer online billing process. • Maintaining main server, data back up systems and Internal Network system. • Maintaining Bill pay systems between Grameen Phone and BGDCL. • Collecting of Bank statement for Revenue Management System. • Preparing Sales and collection statements of BGSL. • Member of ICT & E-governance and Web-site maintenance committee. • Controlling of mail server and networking systems. • Maintaining Pay-roll system and checking outsourcing computer operator’s activities. • Managing IT-Cell with different sites of BGDCL consisting of 10 regular employees and 18 out-sourced data entry operators

    $3.33 /hr
    6 hours
    0.00