Operating Systems Development Freelancers

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, 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

More options
Clear all filters
  1. Daniel Z.

    Daniel Z.

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

    Poland - Last active: 3 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. Alexander R.

    Alexander R.

    Senior IT/IS Architect, Analyst, Administrator

    Russia - Last active: 2 days ago - Tests: 4

    Senior Information Technologies, Networks and Systems Architect, Analyst and Administrator with extensive experience. Platforms: Windows, Linux, OS X Clouds: VMWare, Amazon Web Services, Microsoft Azure Email systems: qMail, Postfix, Dovecot, Microsoft Exchange Web hosting: Nginx (Winginx), Apache, IIS, Nodejs, PHP, Perl, Tomcat Databases: MySQL, PostgreSQL, MSSQL, MongoDB Enterprise: Google Apps, Microsoft Office 365 And much more custom solutions, software and systems installation, configuration, maintenance and monitor.

    $33.33 /hr
    95 hours
    5.00
  3. Oscar Bass

    Oscar Bass Agency Contractor

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

    United States - Last active: 3 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
  4. Gourav Shah

    Gourav Shah Agency Contractor

    Cloud, EC2/AWS, Devops, Big Data, NoSQL, Chef Puppet Ansible Expert

    India - Last active: 1 month ago - Tests: 7 - Portfolio: 5

    I have designed and deployed mid to large scale highly scalable, fault tolerant, automated and secure IT infrastructures using cutting edge complex technologies such as cloud computing, aws/ec2, NoSQL databases, hadoop, load balancers, chef/puppet configuration management systems, varnish cache, nginx/apache web servers, solr search and indexing, virtualization, LAMP and python frameworks, RoR etc. I have worked as a Lead Operations Engineer, IT Manager, managing over 500 server in co located data centers running on various services such as python, java, mysql, postgresql, lamp technologies. Proficient in remote server administration, cloud computing, virtualization etc. I am proficient in libre/open source tools and technologies, command line utilities, scripting, configuration management systems, source code management, computer networks, CMS, Web Frameworks, LAMP, Python/PHP /Ruby on Rails applications deployments etc.and enjoy working on the complex problems and posses excellent troubleshooting skills. I have founded a consulting firm by name Initcron, which is now a AWS Consulting Partner. Initcron specializes in Cloud Computing, Devops, Big Data etc.

    Associated with: Initcron Systems Private Limited

    $50.00 /hr
    3,033 hours
    4.91
  5. Dmitry V.

    Dmitry V.

    Dmitry Volk

    Israel - Last active: 2 months ago - Tests: 2 - Portfolio: 2

    In the past 5 years I have been specializing in servers maintenance, which includes DNS management, DHCP, print servers administration, Microsof's Exchange Server administration, Group policies, Active Directory management and backups. To broaden my professional knowledge I have taken the following courses: - Comptia Server + certificate - IBM Server certificate - HP Stations certificate - MCSA certificate, and MCITP (currently under progress) In addition, I have 3 years of experience working in help-desk environment. I seek for interesting system administration jobs, including help-desk management, remote assistance, and server maintenance. I specialize in Microsoft servers and products, and I'm looking for a long-term work relationship.

    $35.00 /hr
    15 hours
    5.00
  6. Dannie Lyn Buenaventura

    Dannie Lyn Buenaventura

    Administrative Assistant / SEO Coordinator / Accounts Manager

    Philippines - Last active: 21 hours 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
    4,538 hours
    4.77
  7. Antonio jose S.

    Antonio jose S.

    Senior IT Consultant

    Spain - Last active: 10 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
    264 hours
    5.00
  8. Yuri K.

    Yuri K.

    Red Hat Certified System Administrator

    Ukraine - Last active: 21 hours 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
    104 hours
    5.00
  9. Bhushan Kumar Sharma

    Bhushan Kumar Sharma

    Linux Servers AWS Cloud Hosting Security CPanel Plesk VOIP PenTest

    India - Last active: 2 days 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
    3,218 hours
    4.85