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 4.67.

4.67
Last updated: September 1, 2015

Popular Operating Systems Development Searches

Clear all filters
  1. 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
    1,013 hours
    4.98
  2. Dannie Lyn Buenaventura

    Dannie Lyn Buenaventura

    Administrative Assistant / SEO Coordinator / Accounts Manager

    Philippines - 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
    4,644 hours
    4.77
  3. MD. FARHANUR RAHMAN

    MD. FARHANUR RAHMAN

    Web Application, Admin Support, SEO Developer

    Bangladesh - 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
    6,048 hours
    4.73
  4. Muhammad Akmal

    Muhammad Akmal Agency Contractor

    Cisco Certified Engineer CCNA&CCNP, System admin and Virtualization

    Pakistan - Tests: 7

    I am a Cisco Certified Network and Security Professional with more than 15 years experience in Managed Network and Security Services. I have expertise in routing, switching and Network Security across all industry leading vendors. My passion to deliver quality solutions has taken me to full-time freelancing, with a loyal clientele base spanning the globe. I am available around the clock and ready to provide expert assistance as and when my clients call and in their preferred time-zone. --- Cisco--- Cisco 1700 Cisco 2500 Cisco 2600 Cisco 3800 Cisco 7200 Cisco 800 Cisco 1800 Cisco 1900 Cisco 2800 Cisco 2900 Cisco 3900 Cisco RV Seriese WLC 5500 WLC 4400 WLC 2500 cisco aironet 1000 cisco aironet 1100 cisco aironet 1200 cisco aironet 1300 cisco aironet 1600 cisco aironet 2600 cisco aironet 3600 Cisco ASA 5500 Series Cisco AS 5300 Series Cisco AS 5400 Series Cisco PIX 500 Cisco Switch Catalyst 2960 Cisco Switch Catalyst 3560 Cisco Switch Catalyst 3750 Cisco Switch Catalyst 3850 Cisco Switch Catalyst 4500 Cisco Switch Catalyst 4900 Cisco Switch Catalyst 6500 Cisco 4900 4900M Series Cisco Nexus 5000 Series Cisco Nexus 7000 Series cisco Small Business 100 cisco Small Business 200 cisco Small Business 300 cisco Small Business 500 --- Juniper --- Juniper J Series ->Juniper SRX Series SRX100 SRX110 SRX210 SRX220 SRX240 SRX550 SRX650 SRX1400 SRX3400 SRX3600 SRX5400 SRX5600 SRX5800 ->SSG Series SSG5 SSG20 SSG140 SSG320M SSG350M SSG520M SSG550M --- HP --- HP 6600 HP 5820 HP 5800 HP 5500 HP 5100 HP 5120 HP 3800 HP 3600 HP 3500 HP 3100 HP 2620 HP 2530 HP 830 HP 1910 HP 1810 HP 1410 HP 1405 --- Sonicwall --- TZ 215 TZ 210 TZ 205 TZ 200 TZ 170 TZ 180 TZ 105 --- NetGear --- AC1900-Nighthawk Smart WiFi Router AC1750-Smart WiFi Router AC1600-Smart WiFi Router AC1450-Smart WiFi Router AC1200-Smart WiFi Router AC1200-WiFi Router N900-CENTRIA WiFi Storage Router N900-WiFi Router N750-WiFi Router N600-WiFi Router N300-Trek Travel Router and Range Extender N300-WiFi Router N450-WiFi Router N300-WiFi Router N150-WiFi Router --- Routers & Firewalls -- Vyatta Pfsense MikroTik D-Link Routers and Switches CehckPoint Cybercoam samsung ubigate routers Riverbed --- WatchGuard --- XTM 2 XTM 3 XTM 5 XTM 8 Firebox X1250e Firebox X750e Firebox X550e Firebox X55e/X55e-W Firebox Edge X20e/X20e-W Firebox Edge X10e/X10e-W Firebox X5500e Firebox X6500e Firebox X8500e --- fortigate --- Fortigate 30B Fortigate 30D Fortigate 50A Fortigate 50b Fortigate 60c Fortigate 60D Fortigate 100c Fortigate 100D Fortigate 150D Fortigate 300A Fortigate 300B Fortigate 300C Fortigate 300D Fortigate 1000A Fortigate 1000C Fortigate 1000D --- Dell --- Dell Smart Lan Dell 3500 Dell 7000 Dell N200 Dell 6200 Dell 5500 Dell S-Series Dell Z-Series Dell N400 Dell 8100 --- Zyxel--- Zywall USG Series Zywall P Series I also have good understanding and work experience of -Microsoft family of servers and clients operating systems -Cloud Service Providers • Aamazon Web Services • Azure • Rackspace • Linode -Backpup Products • Symantic Backup Exec -Open source VPN solutions • openVPN • openSWAN • strongSWAN • Logmein Hamahi • -Virtualization Solutions • Hyper-V • Vmware • Xen -RRM Tools • Kaseya • Labtech • AutoTask • Connectwise • ManageEngine • Catci • OpenNMS • Solarwinds • Nagios • WhatsUP Gold • PRTG • MRTG • Microsoft Visio Linux Distros • Redhat • Debian • Ubuntu • Centos • Fedora • clearOS • FreeBSD • MacOS

    Associated with: Aliado Inc Agency, Cloud Support Agency

    $33.33 /hr
    1,356 hours
    4.73
  5. Md. Arif Mahmud

    Md. Arif Mahmud Agency Contractor

    Data Entry, SEO, Virtual Assistant, Web Research

    Bangladesh - Tests: 6 - Portfolio: 19

    I am a full time freelancer for almost 4 years in oDesk. I am a Computer Science graduate and I know how things are going on online. My main goal is client satisfaction, and I believe in long term relationship. I assure to my client that they will get what they want. I can provide you the following services: - Data Entry - Data Processing - Data Mining - Web Research - Web Design - Graphics Design - WordPress - Website Management - Virtual Assistance - SEO - Social Media Marketing - E-mail Marketing and so on

    Associated with: Cromium IT

    $5.56 /hr
    2,892 hours
    4.98
  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. Chiemi Irene Alonzo

    Chiemi Irene Alonzo

    Techinal Support/IT helpdesk/DataEntry/Technical Writer/Java Developer

    Philippines - Tests: 6

    To strive for excellence, to work in such an environment that will enhance my knowledge and career, where I can perform my management skills according to my strong Caliber and efficiency.

    $5.00 /hr
    1,146 hours
    5.00
  8. Carlos G.

    Carlos G.

    Tier1/Tier2 Tech Support Specialist/Deskside Support Analyst

    Mexico - Tests: 4

    Reach a competitive position and participatory; that my contract and position be rentable, with availability, cooperation, and bringing my experience to achieve my personal and professional needs which one of these would be to get a higher pay.

    $16.67 /hr
    6,390 hours
    3.96
  9. Vineet V. Agency Contractor

    Senior Mobile Developer / Architect / Consultant

    India - Tests: 6 - Portfolio: 27

    An accomplished Software Engineer with specialization in core development for wireless application development in iOS, BlackBerry & Android platform. With 9 years of experience in IT industry.

    Associated with: CDN Software Solutions Pvt Ltd

    $17.60 /hr
    2,394 hours
    3.00
  10. Lou Mark Cruz

    Lou Mark Cruz Agency Contractor

    Transcriptionist | Excellent Typist-Peak speed of 120 words per minute

    Philippines - Tests: 15 - Portfolio: 3

    I am a tenured and experienced online service provider. I mainly do: Typing and Encoding - With an excellent peak typing speed of 120 words per minute with 100% accuracy, your typing project can be finished flawlessly in just a flash. Linkbuilding - Establishing links for different quality websites that boost clients' ranking via Google. Transcription - (requires speed, high accuracy, fluency in the English language, strong punctuation and sentence structure knowledge, ability to closely follow instructions, and strong internet research skills). As mentioned above, my above average typing speed made me able to deliver an accomplished transcript (transcribed and proofread) real quick and accurate. Research - digging information from the web, and providing relevant data for a simple to advanced and complex task. Data Entry - usually copying and typing data from one source to another office application such as Word, Excel, or directly to a website.requires speed, ability to keenly give attention to details, strong analytical and strong internet research skills. I also do Ad Posting, PDF to MS-Word/MS-Excel conversion, Wordpress and video editing. For nearly a decade now, I have been working as a freelance Computer Technician; and my deep computer knowledge both software and hardware, and my strong analytical skills made me feel really confident working at-home independently, providing complex-type services with a satisfying end-result. I am also a Microsoft Office Expert (Word, Excel, PowerPoint)I can work with minimal or no supervision at all, yet able to deliver a quality service reaching and exceeding client expectations - which is actually my GOAL...

    Associated with: QUALIteam, LMC-NPC

    $11.11 /hr
    2,222 hours
    5.00