Linux System Administrators & Developers

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Post your Linux system administration project on Upwork and find Linux experts and system administrators to assist you with your Linux server installation, configuration, maintenance and technical support tasks. These experienced consultants can manage your Linux network and infrastructure security or perform backups and security scans or updates and identify threats on your Linux OS system. They can also deploy web applications, eCommerce systems and content management systems on your Linux server, or migrate your virtual machine to a physical Linux server. You can also find a professional Linux sysadmin, experienced in system monitoring and control tools, to manage and optimize your Linux-based server farm.

Linux is a collection of free and open-source, cross-platform, Unix-like operating system distributions, among which the most widely known are Ubuntu, Red Hat and Slackware. On Upwork, the world’s largest online workplace, you can find experienced Linux system administrators to set up dedicated Linux web servers, install web hosting control panels (like ZPanel, Plesk, cPanel or DirectAdmin), set up SQL databases and file managers or configure Linux server security and accounts.

Browse Linux System Administration job posts for project examples or post your job on Upwork for free!

Linux System Administration Job Cost Overview

Typical total cost of Upwork Linux System Administration projects based on completed and fixed-price jobs.

Upwork Linux System Administration Jobs Completed Quarterly

On average, 628 Linux System Administration projects are completed every quarter on Upwork.

628

Time to Complete Upwork Linux System Administration Jobs

Time needed to complete a Linux System Administration project on Upwork.

Average Linux System Administration Freelancer Feedback Score

Linux System Administration Upwork freelancers typically receive a client rating of 4.78.

4.78
Last updated: May 1, 2015
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  1. Nallamala V.

    Nallamala V.

    Docker / AWS/ GCE/ Azure/ Linux/ LAMP / DevOps/ PostgreSQL/ Ansible

    India - Last active: 1 day ago - Tests: 4

    Docker & AWS & Azure & Google Compute Engine & Cloud and System administration & Production Support & Migrations & Cost Optimization & Security hardening & Performance Tuning & High availability & 24/7 detailed Monitoring & Automation & Continuous Integration & Chef & Ansible & Jenkins & LAMP & Shell Scripting EXCLUSIVE SERVICES: Docker, Ansible, Cloudformation CLOUD ASSESSMENT AND STRATGEY: Rapidly evaluate, define opportunities & the roadmap to move your IT to the Cloud. Create the optimal platform for building Systems of Engagement. I will help you develop your cloud strategy to ensure seamless and effortless migration of applications, platforms and infrastructure. DESIGN & IMPLEMENTATION Create high available and scalable architecture keeping the infrastructure and maintenance at cost at minimum. DATA CENTERS TO CLOUD MIGRATIONS (LIFT n SHIFT): Pre-migration readiness assessment. Services to seamlessly migrate your infrastructure to the cloud without any business downtime along with processes for security, backup and DR CLOUD AUTOMATION AND OPTIMIZATIONS Run your infrastructure with high efficiency by optimising and automating cloud deployments. Cost and Performance optimization. DEVOPS SERVICES Make use of industry best practices to automate the infrastructure provisioning, scaling , backup, monitoring, patch updates, code deployments TECHNOLOGY EXPERTISE: Public Clouds: AWS, Azure, Google Compute Engine Stack Migrations and Deployments: LAMP/LEMP( Wordpress, Drupal, Magento, Joomla etc), Java, RoR, .Net, Python(Django), Node.js OS Administration: Linux, Windows, Mac Web/App Servers Administration: Apache, Nginx, HAProxy, Tomcat, JBoss, IIS, Puma, Rails, Database Administration: MySQL, Postgres, SQL, Mongo, Cassandra Cache Mangament: CDN, Redis, Memcached, Varnish Automation Tools: Chef, Ansible, Jenkins, Docker Monitoring Tools: Nagios, Zabbix, NewRelic, Data Dog, Opsview Security: OpenVPN, Nessus, OSSEC Experience: Migrated 300+ Applications to AWS, Azure and GCE. Managed 10000+ VM instances in cloud. Migrated and Managed high popular applications to cloud. Designed highly scalable , available and secured architectures for popular e-commerce and Enterprise applications. Migrated and managed HIPAA complaint applications.

    $49.00 /hr
    2,602 hours
    4.82
  2. Ismet Dumlupinar

    Ismet Dumlupinar

    MCITP (System Administration), MCT, MCSA, MCSD: Web Applications

    Turkey - Last active: 3 days ago - Tests: 14 - Portfolio: 13

    Experienced System Specialist, MCSA/MCITP/MCSD. In-depth knowledge of business operations and Information Tecnology Systems, project management, enterprise system integrations and information security with over eight years with hands on experience as an Enterprise Administrator and Network Manager in Windows Server 2003 & Windows Server 2008 environments. Experience in hardware and software virtualization using VMware and Hyper-V and App-V. Practiced understanding Active Directory, Group Policies, NPS, NAP, Exchange, SQL Server, Dynamics CRM, ERP, PKI and DFS. Experience as a corporate Microsoft/Certification trainer at one of gold certified partners of Microsoft. Proficent in Server 2012 and 2008 (inc.Server Core edition), Hyper-V, switches and many other technologies. I have been highly involved in server virtualization for seven years and am proficient in both VMware and Microsoft Hyper-V. I am also providing consulting services for web applications. I am a member of DotNetNuke Corp Internationalization Team and I'm working to expand product features to fully support Turkish localization. I am always looking for new opportunities to develop my skills. Check my Microsoft Profile below: https://www.mcpvirtualbusinesscard.com/VBCServer/idumlupinar/profile

    Groups: Microsoft Certified Professionals

    $75.00 /hr
    2,231 hours
    4.86
  3. Matt Durant

    Matt Durant

    Expert Software Developer, System Admin, and Business Manager

    United States - Last active: 12 days ago - Tests: 8

    I have experience developing many projects utilizing a varied range of skills and programming languages, including but not limited to: .NET, C++, PHP, HTML, CSS, and Javascript. I have exposure to other languages, and I am not afraid to tackle a project in an unfamiliar language. My experience with other technologies includes MySQL, Microsoft SQL Server, Windows Server 2003/2008/2012, Hyper-V 2008/2012, and Linux (Debian-based distributions mainly, but I have experience with others). I have over 10 years of professional experience in server & network administration, software and website development, and business management. You can expect a commitment to detail and your idea when you hire me for your next project.

    $100.00 /hr
    15 hours
    4.97
  4. Sandor M.

    Sandor M.

    System/Network administrator

    Romania - Last active: 1 day ago - Tests: 7

    Over 10 years experience as Linux administrator . Configured and maintained hundreds of servers having different tasks : web server (Apache/Nginx+php/ruby/perl), mail server (with AV and spamassassin), file server, mysql/postgresql, dns, IM server, VOIP, firewall/VPN. As a network administrator in a small WISP i built my skills up in wireless, routing/BGP, routers/swithes/firewalls, network monitoring/troubleshooting. I write my own scripts (shell/Perl) . Also i have limited experience in programming, mostly Php and C. Serverfault profile : http://serverfault.com/users/164490/sandor-marton

    $35.00 /hr
    3,025 hours
    4.97
  5. Raskin P.

    Raskin P.

    VPN,Routing and Switching,Firewall Expert, Mikrotik Consultant

    Bangladesh - Last active: 1 day ago - Tests: 11 - Portfolio: 44

    Network and System Administration Skills having near 6 years of Hands on experience on ISP and Telecom with good exposure on IT networks and systems design, planning and implementation ensuring proper security. Vendor Certification : CCNA (Cisco Certified Network Associate) CCNP Routing &Switching (Cisco Certified Network Professional) RHCE (Red Hat Certified Engineer) MCP (Microsoft Certified Professional) MTCNA (Mikrotik Certified Network Associate) MTCRE (Mikrotik Certified Routing Engineer) JNCIA (Juniper Certified Network Associate) ITIL-Foundation 2011 Course Completed : CCNA Security,CCNA Voice,CCIP BGP,CCIP MPLS Specialization * Routing and Switching: Cisco,Juniper,Mikrotik,HP,Zyxell, Netgear, Quagga, Linux Gateway,Egdemax,Dell * Firewall : Cisco ASA,PFSense,Cisco Pix,Zywall,Linux Iptables,QOS,Edgemax,Mikrotik, Nokia Checkpoint, Fortigate 1000, Juniper SRX 3600, Sophos UTM 9 * Server OS Platform : Centos,Ubuntu,Debian,Redhat,Windows Server 2003,2008,2012 * VPN (Remote Access/Site to Site): Mikrotik RouterOS,Cisco ASA,Open VPN, OpenSwan, PFSense,DD-WRT,Cisco Pix,PPTP Vpn linux,GRE over IPSEC,Linux IPSEC,Dell Sonicwall PF Sense,Strongswan,Windows Server 2003 , 2008, 2012, Zywall, Netgear,TP Link,Draytek Vigor,Forninet,Juniper Netscreen,Checkpoint,Cisco IPSEC/L2tp,AnyConnect SSL WebVPN, Sophos UTM 9 * Application Server : Mail,Dns,Dhcp,Proxy,Samba,Ftp,Web,Active Directory,Cacti,MRTG,Syslog,Free Radius,Daloradius,Phpmyadmin,rsyslog,loganalyzer * Virtualization : Vmware,Linux Xen, Vmware ESXI * Application Load Balancer : Cisco ACE 4710,F5 Big IP LTM,Citrix Netscaller, Foundry Serverion, loadbalancer.org * Wireless : DD-WRT,Netgear,Linksys,Dlink,TP Link,Cisco Aironet 1100,1200,WLC,Cisco Lighweight AP joining to WLC. * IP Telephony : Core Asterisk,Elastix,Trixbox,Asterisk now,Free switch,ATA, IP Phone * Cloud : AWS EC2 Instance, DigitalOcean

    $40.00 /hr
    337 hours
    4.94
  6. Ciprian B.

    Ciprian B.

    Citrix and Microsot Senior Engineer

    Romania - Last active: 10 days ago - Tests: 2

    I've been administering Microsoft and Citrix server infrastructures for the last 8 years, and have in-depth experience with design, deployment, repair and support of all Citrix, VMWare and many Microsoft technologies. My experiences range from server administration roles, specialized application support, desktop support, administrator to advanced virtualization implementations jobs combined with programming skills . For the last four years I've also been working designing, building and support the following: Citrix VDI-in-a-BOX, XenApp, XenServer, XenDesktop, NetScaler products Microsoft RDS, Server 2003 - 2012 R2, Hyper-V VMWare ESXi 3 years Experience with desktop Virtualization on Citrix products. Citrix (CCA, CCAA, CCA-N, CCP-N, CCEE, CCIA, CCP-V, CCE-V) Microsoft (MCP, MCDST, MSCA, MCS, MCITP, MCSE) Excellent technical skills on Enterprise networks Expert-level hands-on operation of Citrix Products and associated third party management and support tools. Experience leading VDI (View and/or Xen) projects; Experience working as a consultant; Experience architecting and managing streaming applications over a VDI environment. I am confident I'll be a great asset to your project or organization, and look forward working with you! Certifications : Citrix : CCA Citrix Certified Administrator XenApp 6.5 CCAA Citrix Certified Advanced Administration XenApp 6.5 CCA Citrix Certified Administrator XenDesktop 5 CCA Citrix Certified Administrator XenServer 6.0 CCEE Citrix Certified Enterprise Engineer CCIA Citrix Certified Integration Architect CCP-V Citrix Certified Professional - Virtualization CCE-V Citrix Certified Expert - Virtualization CCA-N Citrix Certified Associate - Networking CCP-N Citrix Certified Professional - Networking Microsoft: MCITP Virtualization Administrator on Windows Server 2008 R2 MCSA 2012 / 2008 / 7 MCSE 2012 Server Infrastructure Solutions Expert MCSE 2012 Private Cloud MCSE 2012 Desktop Infrastructure MCP Microsoft Certified Professional MCDST Microsoft Certified Desktop Support Technician on Windows XP Microsoft Specialist 2012 Server Virtualization with Windows Server Hyper-V and System Center Specialist MCTS Windows 7, Configuration MCITP Enterprise Desktop Support Technician on Windows 7 MCSA Windows 7 (MCSA) MCTS Windows Server 2008 Active Directory, Configuration MCTS Windows Server 2008 Network Infrastructure, Configuration MCTS Windows Server 2008 Applications Infrastructure, Configuration MCITP Enterprise Administrator on Windows Server 2008 MCSA Windows Server 2008 (MCSA) MCTS Windows Server 2008 R2, Server Virtualization MCTS Windows Server 2008 R2, Desktop Virtualization Other : ITIL V3 Foundation Certified IT Service Management Apple Product Professional Strong VCP, Cisco CCNA , Hardware knowledge, software development Pascal,c++,visual c++, SQL, Java, Active Directory & Exchange,Lotus Notes Remedy, Tivoli, Assyst Ability : team spirit, optimist, sociable, high capacity of learning, dynamic, flexible, skilled team leader, organized, efficient.

    Groups: Microsoft Certified Professionals

    $50.00 /hr
    150 hours
    4.97
  7. Evangelos E.

    Evangelos E.

    Amazon Cloud

    Cyprus - Last active: 19 days ago - Tests: 1

    Over the past 15 years I have been involved in systems and network engineering across heterogeneous environments. During the last 7 years I have worked in the design and implementation of Virtualization solutions with VMware and small to medium size Datacenters. For the last 2 years I worked on several Cloud Migration, SaaS Deployment projects and Architecting/Managing Amazon SaaS Environments. Some recent responsibilities/projects include: * Server Operating Systems: Amazon Linux, Windows Servers * Monitoring/Trending/Notification with CloudWatch, SNS, Nagios, Munin, DotCom-Monitor * Design/Implementation of SaaS Environment in multiple Amazon VPCs * Amazon Console Security using IAM / CLI and API Tools * Database Services utilizing Oracle, MSSQL and MySQL RDS * Reverse-Proxying/Load-Balancing using Nginx, HAProxy and Amazon ELB * Storage/Content Delivery utilizing CloudFront with S3 and Akamai * Host Intrusion Detection utilizing OSSEC (AlienVault) * Vulnerability Assessment utilizing QualysGuard (internally to VPC and externally to websites) * Application Servers: JBoss, Oracle Application Server, WebLogic * Email Servers: Sendmail, Procmail, Postfix * VPNs: Cisco VPN, Cisco Anyconnect, OpenVPN, OpenVPN Access Server * Automation of Amazon Deployments with Chef and Cloudformation * Server Migrations to the Cloud using Double-Take, Amazon VMDK Import, Rsync

    $50.00 /hr
    6,963 hours
    5.00
  8. Victor V.

    Victor V.

    Java/J2EE/ SQL / Software Architect/ Sencha Extjs Developer/ AngularJs

    Russia - Last active: 3 days ago - Tests: 5 - Portfolio: 2

    ✔ Java, J2EE, Spring (MVC/Security/Rest), JSF, Hibernate, Hibernate Search(Lucene), JSP, JSTL, Apache Tomcat ✔ MySQL, Oracle, PostgreSQL ✔ Javascript, AngularJS, doT.js, Sencha(Extjs 4.x), jQuery ✔ HTML5, CSS3 ✔ SVN, GIT I'm an experienced Java programmer with solid principles in programming, architecture and code quality. Working in web development for over 7 years I gained considerable experience in building business solutions using such languages as Java, Javascript(ExtJs, JQuery), SQL, Bash-scripting, HTML5, CSS3. Over the last four years I have been working for such companies as "Firejack Technologies", "Bank of America", "Millenial Media" etc, so i gained considerable experience in the designing of web applications architecture. I like to learn new technologies, frameworks etc, so research projects will be also interested for me.

    $35.00 /hr
    6,038 hours
    5.00
  9. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    I have strong background in UNIX/Linux software development, Master's Degree in Computer Science. I worked on Enterprise high-load distributed hosting automation systems as a Team Leader (3.5 years in SWsoft, Inc., now called Parallels). For the last 6 years I'm running my own small software development business in Russia with primary focus on Python/Django apps. Not pure Web but often involving integration with hardware (Proximity Cards, Sensor Screens) or external systems like Payment Processing, SMS Gateways, GABRIEL (Airline Reservation System), etc. I can take an idea and turn it into a working business, through all the intermediate stages. Also I have experience of investing my own funds in my projects, so I feel the difference between "perfect code" in a month and "good enough" code that increases the revenue right now. Nevertheless, my code is very good: no copy-paste, always written with performance, flexibility and security in mind, etc. On oDesk I'm looking for (and actually find :) interesting projects with a sight on long-term fruitful cooperation. I'm also open to smaller activities (e.g., consulting) where my knowledge can be helpful.

    Groups: Coding Champs

    $40.00 /hr
    1,540 hours
    5.00
  10. Ivan T.

    Ivan T.

    Ruby / Rails Full-Stack Architect. 8 yrs, 12k hrs, 100pct success.

    Russia - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    Independent full-stack developer / technical architect skilled in: * Ruby / Ruby on Rails (from edge to legacy) * Client-side tech (HTML5 with HAML, CSS3 with SASS, JavaScript [native & libs/frameworks], jQuery, Bootstrap, and more) * Scalable, decentralized (modular) applications architecture * Databases: relational (PostgreSQL, MySQL), NoSQL (Redis, Riak, MongoDB, Neo4j), big-data-specific (Google BigQuery, Amazon Redshift) * Background jobs processing: Sidekiq, Resque, delayed_job * Message queuing: RabbitMQ (AMQP) * RESTful APIs implementation, integration with any third-party APIs (including social media APIs: Facebook, LinkedIn, YouTube, and more), data harvesting from sites which do not provide an API * Rails applications deploy, monitoring, maintenance: Heroku, Amazon EC2, Linode, Digital Ocean) * Amazon Web Services infrastructure: EC2, S3, Glacier, Redshift,.. * Process: TDD/BDD with RSpec, Cucumber, Capybara, Zeus, Guard * Version control systems: svn, git (with GitFlow, GitHub Flow workflows) As a full-stack developer / technical architect, I can develop scalable and stable multi-node server-side applications and also can evaluate your Ruby/Rails application and make suggestions on possible optimizations / refactoring / adopting best practices. As a team lead, I can divide, prioritize and delegate tasks to developers, consult developers on best practices, ensure high overal quality of software product. I like challenges, have solid skills of problem solving, do not require supervision to successfully perform my duties. Dependability is also one of my key strenghts (never left my work half-done / half-functioning). If my current rate fits your project's budget, contact me to discuss technical and other aspects — I'm looking forward to it.

    Groups: Engine Yard Ruby on Rails Professionals Network

    $100.00 /hr
    12,939 hours
    5.00