Operating Systems Development Freelancers

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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, 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 4.64.

4.64
Last updated: May 1, 2015

Popular Operating Systems Development Searches

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  1. Daniel Z.

    Daniel Z.

    Highly skilled API integrator, PHP (ZF) Coder and Project Manager

    Poland - Last active: 4 days ago - Tests: 7 - Portfolio: 6

    Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

    $35.00 /hr
    1,615 hours
    4.98
  2. Oscar Bass

    Oscar Bass Agency Contractor

    Senior UNIX System Engineer, LAMP, LEMP, Network Security, Cloud.

    United States - Last active: 4 days ago - Tests: 7 - Portfolio: 1

    Expert UNIX system administrator and network engineer. Got a problem? I can solve it! For more than 15 years I have been the I.T. backbone and support for many online companies. I use the most up to date standards for any project I am involved in. I work extremely quick and efficiently. If you have a problem let me help you solve it. OS: Linux - Expert, FreeBSD - Expert, AIX - Expert, HP-UX - Expert, Macintosh OS/X - Expert, Windows Server - Proficient Cloud services: AWS, Rackspace, OpSource, Linode Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Monitoring: Nagios, Monit, Munin, Cacti Scripting: bash, perl, shell Virtualization: OpenVZ, Xen, SolusVM Mail servers: Postfix, Exim, Sendmail, Dovecot Control panels: cPanel, Plesk, Direct Admin, Webmin/Virtualmin, ISPconfig, OpenPanel Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, backups, monitoring etc), firewalls (iptables, ipfw, pf)

    Associated with: Bass Designs Agency

    $44.44 /hr
    236 hours
    4.96
  3. Antonio jose S.

    Antonio jose S.

    Senior IT Consultant

    Spain - Last active: 2 days 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
  4. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 15 hours ago - Tests: 4 - Portfolio: 14

    Since 2001, I have been dedicatedly working with Linux Operating Systems & Open Source. Services Provided ::- Deployment, Configuration, Security, Hardening, Monitoring, Performance Tuning, Troubleshooting of Linux Server Roles AWS – Amazon Web Services Migration of Servers Hosting Panels like WHM/CPanel, Plesk etc Asterisk Dialers, VOIP and Call Center Solutions Customization of Linux Kernel & Distro with Rebranding Faculty of Post-Graduate Degree in Computer Sciences. Firewalls & Gateways Linux HPC - High Preformance Clusters Remote Server Support & Troubleshooting L3/L4 Security Auditing of Servers & Websites Cloud & Virtualization Technical Writing VPN - Site-to-Site, Road-warrior Vulnerability Assessment & Penetration Testing Kayako

    $16.67 /hr
    3,223 hours
    4.85
  5. Harsh Gajjar

    Harsh Gajjar Agency Contractor

    Project Manager Web Designer Web Developer,All CMS,.Net,WP,3D Animator

    Australia - Last active: 25 days ago - Tests: 5 - Portfolio: 24

    I am a Project Management professional having my own different team(s) locally as well as globally. I have more than 4 years of experience as Project Management as well as Development with both mid and big scale projects. I have been managing projects from beginning to successful deployment (& Maintenance Support) and having experience of leading 24+ team members in a single project. My core competency lies with; Website Designing & Development and Web Development (Photoshop, Coreldraw, Dreamweaver, ASP.NET,C#.NET/SQL SERVER, Visual-basic.net, ado.net, microsoft-sql-server, microsoft-silverlight, sharepoint, dotnetnuke, css, html, css3, html5, ajax, jquery, xml, xaml, javascript, PHP, Wordpress, Os-Commerce, Megento, Drupal, Joomla, Umbraco, etc.) Software Development (Microsoft Technologies and Open Source) Mobile App Development (Iphone & Android Apps in Xcode, Native, Titanium); 2D & 3D Multimedia Animation (3d Studio Max, 3d Studio Maya, Adobe Premier, Adobe Premier Pro, VFX, etc.) SEO and Social Media Marketing (as well as Brand Management) Server Management, Server/Network Administration, All types of Windows Severs (Windows Server 2003, Windows Server 2008 R2) and Linux Servers. Feel free to contact for the complete range of Solution(s) in Software Development, Website Designing & Development, Web Development, Multimedia Animation, Mobile App Development (including UI Designing), SEO & Social Media Marketing, High Networking, Server/Network Administration, including Project Management.

    Associated with: Jugis Tech Agency

    $66.67 /hr
    518 hours
    4.81
  6. BP Singh

    BP Singh Agency Contractor

    *MSP Consultant, Kaseya Consultant,labtech, Exchange, Vmware,AD*

    India - Last active: 3 days ago - Tests: 4 - Portfolio: 1

    ITechServ is a company with expertise in IT infrastructure management and has certified people having expertise in their skills. A MCSE certified guy handles Microsoft systems and CCNA Tech handles Cisco firewalls, routers and switches. So we believe in that every task/issue/work needs to be handled by a resource having expertise in his area. We work as a team to complete IT infrastructure project. Provide tier 1, 2 and 3 level supports as a team and provide the Best services so that the delivery of the work has a quality and is done in the minimal time. We provide IT services with a difference.

    Associated with: ABCTECHSERVE, ITechServ

    $33.33 /hr
    7,769 hours
    4.70
  7. Joshua Dotson

    Joshua Dotson

    IT Sleuth & System Administrator (Open Source Infrastructure & HPC)

    United States - Last active: 03/06/2012 - Tests: 8

    LinkedIn http://www.linkedin.com/in/jmdots Summary I've worked in technical administration, technical support, customer service or leadership roles for all but a few months of my adult life. In this time, I climbed the ranks of a highly-modern, lightning-paced, large-scale, multi-OS supercomputing environment in Area B of Wright-Patterson Air Force Base (WPAFB) and became an avid user of all things open source. The place which was my professional home of over six years is known as the “Air Force Research Laboratory DoD Supercomputing Resource Center” or "AFRL DSRC" for short. The AFRL DSRC environment is home to the #19 supercomputer on the June 2011 Top500 Supercomputer List, a mammoth computer for which I received training: Cray Inc.'s "Raptor" XE6. I enjoy excelling in the IT industry by working smart by doing my research, building wisdom and having fun. Background 10GbE, Access, Alfresco Share, Amanda, Apple HW, Appro HPC, Audacity, bash, CentOS, Clonezilla, CUPS, Cray HPC, DD-WRT, Dell HW, DokuWiki, DRBD, eHealth, Excel, Fedora, Firefox, Gentoo, GIMP, git, Google Apps Domains, HP HW, High Performance Computing (HPC), HTML, InfiniBand, Inkscape, iptables, ITILv3, Kerberos, Kickstart, KVM, LibreOffice, Linux, MacOS, MediaWiki, MySQL, Nagios, Net-SNMP, NFS, Nmap, Nvidia GPGPU, OFED, OpenLDAP (w/TLS), OpenSSH, Oracle HW, Outlook, OTRS (with ITSM), Panasas (PanFS), PBS Pro, PhpLDAPAdmin, PhpMyAdmin, PKI, PowerPoint, Python, QEMU, RAID, regex, RHEL, Rocks Cluster, RootCA, RSA tokens, Samba, SAN (FC, iSCSI, SAS), Scientific Linux, SGI HPC, SharePoint, SiCortex HPC, SketchUp, SLES, SNMPv3, Solaris, Spectrum, Sun Freeware, Sun HW, SuperMicro HW, SUSE, SVG, svn, SystemEdge, TCP Wrappers, tomcat, Ubuntu (Desktop & LTS), vim, VirtualBox, Visio, Visual Basic, VMware, WebDAV, Windows (Desktop & Server), Word, Zenmap, ZFS, ZRM for MySQL

    $50.00 /hr
    21 hours
    5.00
  8. Matthew A.

    Matthew A.

    Certified Information Systems Engineer, OS X/Linux/Unix/OpenStack

    United States - Last active: 10/01/2012 - Tests: 5 - Portfolio: 5

    A focused critical thinker, applying over 13 years of IP security, data and voice expertise to engineering, executing, and troubleshooting client needs with close attention to detail, while demonstrating a proven history of successful project management. I provide a very diverse array of services ranging in complexity from Small Business and Enterprise, to Government and Military systems. Utilizing leading edge technology to consistently exceed expectations. Security Clearances: Secret (inactive), TWIC Some of my strong areas are: Mac OS X, Linux, UNIX, Windows, OpenStack, xCode, Objective-C, Cocoa, HTML, CSS, PHP, SQL, XML, Wordpress, Joomla, Metasploit, Penetration Testing, Cloud Integration, Cacti, SugarCRM, Asterisk, BGP, OSPF, IGRP, DNS, BOOTP, 802.1, 802.3 and 802.11 a/b/g/n.

    $55.00 /hr
    31 hours
    5.00
  9. Asif Gohar

    Asif Gohar

    System, Network, Active Directory, Exchange, Backupexec, System Center

    Bahrain - Last active: 12/03/2014 - Tests: 5 - Portfolio: 5

    Knowledgeable and skilled IT professional with encompassing work experience spanning more than 8 years in systems administration with compliance as per industry standards. Possess excellent interpersonal skills to liaise amicably with diverse groups of people, different departments, vendors and agencies. With extensive exposure to different cultures and work environments and has worked effectively with multinational individuals and professionals from all organizational levels. Certifications: MCITP (Server 2008, Exchange 2010, Lync 2010) Expertise: Exchange 2007/2010, Active Directory 2003/2008, SCCM, SCOM, DPM, SCVMM, BackupExec,Enterprise Vault, WSUS, Lync, Server 2003/2008, ADRMS, SQL Server, SAN/NAS.

    Groups: Microsoft Certified Professionals

    $20.00 /hr
    270 hours
    4.95
  10. Martin Gierczak

    Martin Gierczak

    Microsoft Professional, Designer, Researcher, Writer, Web Builder

    Canada - Last active: 11/13/2013 - Tests: 20 - Portfolio: 20

    ╟₪ My main goal is to meet, exceed, WOW, and be the best within my fields of expertise. I can achieve this by being open minded, listening to what my employer needs, and be able to adapt by taking on extra learning as my own initiative to do better. ╟₪ I enjoy being busy, because being busy means I can learn, earn and further enhance my reputation. ╟₪ I am very skilled, efficient and innovative. ╟₪ I will never apply for anything that I do not think I cannot do. "I have found no greater satisfaction than achieving success through honest dealing and strict adherence to the view that, for you to gain, those you deal with should gain as well". - Alan Greenspan.

    $50.78 /hr
    0 hours
    5.00