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  • $150 hourly
    A Top-Rated, Expert-Vetted VoIP/Software engineer with over 20 years of experience. My experience ranges from Asterisk/FreePBX phone systems, SMS messaging, Linux operating systems, to network administration. I believe you deserve a more professional, reliable, and personalized business experience, and I bring that mindset to every project. Whether I’m developing top-secret code for Lockheed Martin, or AI telephone agents for Nomo, or creating privacy-first communications for Mecca Hosting, Inc, or designing secure, high availability Asterisk systems for TeleConnx Inc., or handling difficult troubleshooting tasks, I always commit myself to the same standard: creative, client-first solutions and efficient, high-quality work, completed in a fraction of the time. I have a passion for transforming mundane phone interactions into exciting customer experiences, and I lean on decades of experience to create solutions that others would find impossible. In short, I can make your telephone system do pretty much anything, including turning on your coffee maker in the morning. I look forward to working with you!
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    FreePBX
    MySQL
    Kamailio
    Amazon Web Services
    VoIP Administration
    Asterisk
    API Development
    C
    VoIP Software
    LAMP Administration
    Session Initiation Protocol
    Linux
    VoIP
    Business with 10-99 Employees
  • $105 hourly
    Enterprise-level Linux system administrator, system engineer, cloud designer, DevOps and AWS expert with 15+ years of expertise. I specialize in AWS architecture and cost optimization, Cloudflare DDoS mitigation, Magento, Wordpress or custom CMS hosting speedup. ** LAMP/LEMP(Nginx) administration and server security hardening (Ubuntu, Debian, Centos,RHEL,HAProxy, Ruby deployment, DevOps, Python/Django deployment DevOps,Nagios, fail2ban, CloudFlare, Elasticsearch, Kibana, ELK stack..) ** Codeship deployments ** Docker, Docker-compose, Docker swarm, Let's encrypt ** Varnish cacheing (Magento, WordPress, Skadate...) w/ SSL ** Amazon web services - AWS expert/architect/design (EC2, ECS, VPC, RDS, S3, Route53, Cloudfront, Elastic Load Balancer, AutoScaling, etc..) ** DDoS mitigation and prevention ** Nginx rewrites ** Google pagespeed ** Linux troubleshooting ** VPS providers: Linode, Rackspace, Amazon(AWS), MediaTemple, HostGator, Cloudflare, MaxCDN, CloudFront, NameCheap, GoDaddy, DigitalOcean, EC2, Bluehost ** Parallels Plesk ** D2C.io docker stack ** Odoo/OpenERP installation ** VPS administration ** AWS EC2 administration ** VMware vSphere ** elastic container service ** NewRelic ** fail2ban ** openswan ** HAProxy ** keepalived, vrrp ** elasticsearch ** Nagios monitoring ** Elastic Load Balancer ** LINUX deployment and migration ** Rackspace Cloud Services ** Ruby on Rails app deployment ** Python - Djengo app deployment ** CPANEL, PLESK, WEBMIN, SHELL/SSH administration ** proftpd, pure-ftpd, pure ftp ** DNS, BIND, PowerDNS ** SSL certificates ** Site migration ** Network troubleshooting ** CSF firewall ** VPN ** Cisco, Mikrotik, Juniper Networks, Extreme Networks.. ** Linux PENTAHO deployment ** Squid, AiCache, AiScaler EXPERIENCE: Expertize in Linux networking and service management, such as APACHE server, Nginx, LAMP, LEMP, LNMP, MYSQL, POSTGRESQL, tcpdump, haproxy, WIRESHARK, tshark, URL rewrite. I possess 15+ years of extensive experience in network and Linux administration, support, and Core Network design in a Telecom environment. My profound expertise includes routing, BGP, VPN, Layer 3 networking (Routing), Layer 2 networking (LAN switching), VLAN, OSPF, RIP, as well as network and packet troubleshooting. I have extensive experience with a wide range of network equipment, including but not limited to, Cisco, Juniper, Extreme, HP networking, MikroTik RouterOS, Ericsson OSS, and Redback Networks. Experience with various providers such as: -AMAZON WEB SERVICES (AWS, EC2..) -RACKSPACE -HOSTGATOR -GoDaddy -MediaTemple -Cloudflare -NameCheap -LINODE -QuickWeb -HAProxy - reverse proxy, layer 7 routing -etc.. -WHMCS RESELLER setup and migration on project or permanent basis. Including DNS, EMAIL, WORDPRESS migration -CPANEL, PLESK, WEBMIN, H-sphere, SHELL administration -SSL certificates, let's encrypt, lets encrypt
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    Cloudflare
    Web Hosting
    SSL
    TCP/IP
    Plesk
    cPanel
    Amazon EC2
    Network Administration
    LAMP Administration
    Red Hat Enterprise Linux
    NGINX
    System Administration
    Amazon Web Services
    CentOS
  • $69 hourly
    I'm the most experienced Joomla developer on UpWork. I have been working exclusively with Joomla for 15 years, specializing in building custom extensions. I have accumulated more than 12,000 hours of experience on UpWork, all of it focused on Joomla. Additionally, I have a 98% job success score and have achieved top-rated plus status. I can build a new Joomla extension from scratch, including Joomla 5 extensions. Additionally, I can upgrade your Joomla website to the latest Joomla 5 version and modify any extension to work exactly as you need it. Feel free to reach out to me for a discussion or chat about your Joomla project; do not hesitate to contact me.
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    Web Development
    Web Services Development
    Business Services
    JomSocial
    Joomla Migration
    Plugin Development
    CMS Development
    JavaScript
    CSS
    Joomla
    HTML
    PHP
    MySQL
  • $98 hourly
    I'm a senior Linux Systems Engineer/Administrator with over 20 years of experience. I started my career as a software developer but switched to Linux engineering. I’m looking for medium to long-term clients that would like to have an expert systems engineer to manage and monitor their application stacks in AWS or elsewhere. These days it is about the power of small teams to implement big ideas, let me be part of your team. I am also very proficient at tracking down difficult issues and devising a solution as quickly as possible. I'm also open to being your on-call person for your systems as long as you provide a minimum number of hours per week. I have experience managing and securing multiple Linux systems in a data center or in a public cloud (AWS/Azure/GCP/IBM Cloud/Digital Ocean/others). I've supported multiple application types running on Linux ranging from websites, VoIP stacks, databases, storage arrays, business intelligence, etc. I'm equally fluent in Redhat/Centos and Ubuntu/Debian flavors of Linux. I've used multiple tools like Chef, Grafana/Prometheus, Ansible to manage and monitor systems. I also have some experience administering Windows servers, mostly with Linux integration or running specialized applications on Windows. I'm also well versed in using technologies like TeamViewer, $lack, Teams, IRC, Jira, Wikis and other tools for remote collaboration. I'm using GPT-4 to increase productivity and multiple GPTs to diagnose issues quickly. I've also integrated the OpenAI API to some simple applications with GPT-4 and can suggest how to scale such systems. Technology Summary: Apps/Tools: Apache/nginx Web Stack, Chef Server, Grafana/Prometheus, Wazuh, Ansible, Wordpress, Jenkins, Git/Gitlab/Github, Distributed Crypto Ledgers, ChatGPT/GPT-4 api Operating Systems: Redhat/Centos, Debian/Ubuntu, MacOS X, Windows Server 2008R2 Languages: Python, Ruby, PHP, Golang, Bash, Java Databases: MySQL, PostgreSQL,MongoDB, Oracle Cloud Providers: AWS, Azure, Digital Ocean, Google Cloud, IBM Cloud Networking: Cisco switches, Artista switches, Netscaler LBs, AWS ELB, Linux networking/firewall Hardware: IBM Servers, Dell Servers, HPE Servers, HPE 3Par SAN, Dell EqualLogic SAN, IBM Block & File Storage, APC PDUs Virtualization: Proxmox VE, KVM, Oracle VM, VirtualBox, VMware, Xen 4, Docker/Containers
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    MLOps
    AI Model Integration
    LangChain
    AI Builder
    OpenAI API
    Large Language Model
    Linux
    Cloud Computing
    Systems Engineering
    Security Infrastructure
    PostgreSQL
    Python
    Amazon Web Services
    MySQL
  • $40 hourly
    I'm a DevOps Engineer/System Administrator with a strong Linux background and 5+ year experience in designing, implementing, and managing deployment automation. I'm certified Kubernetes administrator. I have solid production experience with AWS, Google cloud, Kubernetes, Openshift, CI/CD processes, Jenkins, Ansible, Terraform Participated in international competitions such as WorldSkills and IT Planet in field of network and systems administration. Easily adapting to new processes, latest technologies, trends.
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    AWS CloudFormation
    AWS CodeDeploy
    Amazon Web Services
    CI/CD
    Jenkins
    Golang
    Docker
    Amazon ECS
    Ansible
    Python
    Kubernetes
  • $180 hourly
    Hello, I'm a software engineer and consultant, and my interest in the IT and Web industry started with the creation of my first website in 1997. After graduating in this field a few years later, I embraced a career as an IT consultant at industry leaders like Deloitte and Accenture, as well as engineering roles at IBM, Google, Vodafone, Yahoo, Singtel and a few other multinational companies across Europe, USA, and APAC. I also developed a longstanding passion for open source projects and WordPress, which eventually led me to author a popular open source speed optimization plugin and publish it on wordpress.org ( Fast Velocity Minify, 80k users, 5 start rating average ). Remarkably, WordPress has seen a significant rise in popularity for the past decade, with at least 30% of all web sites on the internet using it. As a result, there is high demand for advanced and specialized consulting in this field, involving complex architectural issues, scalability, performance, security, customization, costs reduction, efficiency, etc... I can not only empower your organization with strategic insights across a wide array of business and technical related decisions, but also leverage my experience in problem-solving to improve the operational efficiency of your WordPress systems. I am a TOP RATED PLUS member on Upwork (top 3%), but please read through my clients reviews to understand the quality of my work. I am available for the following types of projects: --- Consulting (problem solving, project management, hiring talent, architecture planning, etc); --- Development (AI integration, web services, web scrapers, data mining, data science, etc); --- Speed (web vitals, pagespeed insights, gtmetrix, CDN services, etc); --- Security (malware removal, security auditing, DDoS protection, Cloudflare, Sucuri, etc); --- Servers (MySQL, Nginx, Apache, Litespeed, Redis, Memcached, Elasticsearch, etc); --- Hosting (Google Cloud, AWS, Digital Ocean, WP Engine, Kinsta, Cloudways, CDN, etc); --- Maintenance (backups, migrations, cloning, auditing, etc); Thank you for reading!
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    MySQL
    WordPress
    Page Speed Optimization
    PHP
    API Development
    Performance Optimization
    WooCommerce
    NGINX
    Amazon Web Services
    Google Cloud Platform
  • $50 hourly
    I am skilled professional in the field of IP Networks , Mobile Packet Core Networks, Netowrk software development and process automation with more than 15-year industry experience. IP Network network related troubleshooting, configuration, designing ,Network Process Automation,Network Software Development, Linux System administration, Network security configurations such as VPN,Firewall ,Web developments are my key areas as freelancer. I have more than 15 years of industry experience above areas. I am looking forwards to accept projects related to above areas with reasonable low rate since I am new to upwork.
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    Multiprotocol Label Switching
    Network Engineering
    Automation Anywhere
    Network Design
    IPv6
    PHP
    Python
    Web Application
    C#
    Huawei AR
    Network Administration
    Cisco Router
    C
    Firewall
  • $30 hourly
    SUMMARY • Profile: Network Infrastructure Engineer, System Administrator, and NOC Engineer with 10 years of diverse experience • Expertise: Network Systems Administration • Education: Postgraduate degree in Computer Science, BSc in Electrical Engineering • Certifications: CCNP Enterprise Core, CCNA R&S, CCENT, CompTIA Linux+, CompTIA A+ • Interests: Advanced routing and switching protocols, AWS cloud infrastructure, Python network automation, Linux fundamentals, Git, Docker, Kubernetes, Terraform, ITIL framework CORE COMPETENCIES • IP Network Analysis & Planning Strategy • Network & System Administration • Network Automation • Operations Management • Process Improvement • Project and Team Management • Technical support KEY CAREER ACHIEVEMENTS • Accomplished Network Engineer, who successfully built and managed various-sized projects and improved existing state of IT systems and internal processes • Cisco Certified Specialist, proficient in routing and switching technologies
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    IT Support
    Technical Support
    Routing
    Automation
    DHCP
    OSPF
    Amazon Web Services
    Wireless Communication
    Troubleshooting
    Cloud Computing
    System Administration
    Network Administration
    Network Security
    Network Engineering
  • $40 hourly
    I have more than 10 yrs supporting Linux and related technologies in diverse IT environments. Senior System DevOps/Engineer with infrastructure operations team, project management, network design, deployment and support experience. Proven track record of building in system-level availability in order to reduce downtime across customer-facing and internal server systems hosted internally, at a datacenter, or in a public cloud environment.
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    Database Management
    Scripting
    System Administration
    AWS Systems Manager
    DevOps
    Docker
    Amazon ECS
    Terraform
  • $20 hourly
    Experience in Technologies: OS: Windows Server 2003R2-2022: Active Directory, DNS, DHCP, IIS, Remote Desktop Services, RRAS, WDS, WSUS, CA, Files servers, Group policy etc. Debian, Ubuntu, Fedora, CentOS, FreeBSD – Apache, nginx, PHP, nodejs, iptables, firewalld, LVM, Samba etc. Database servers: MS SQL Server, MySQL, PostgreSQL Virtualization: VMware, Hyper-V, KVM VPN: PPTP, SSTP, IPSEC, site to site VPN. Managing networks infrastructure: wireless access points, switches, routers. Cloud: Amazon AWS, Microsoft Azure, Google Apps for Business Scripting: vbs, PowerShell, bash, php, python
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    Windows Administration
    Kernel-based Virtual Machine
    AWS CloudFront
    Bash Programming
    Amazon EC2
    Virtualization
    Network Security
    FreeBSD
    Microsoft Active Directory
    Windows Server
  • $30 hourly
    With a Bachelor’s Degree and Diploma in computer science, numerous years of hands-on experience creating and implementing software applications, and the ability to troubleshoot and solve problems in a timely and accurate manner. My technical expertise includes cross-platform proficiency (Windows, Unix and Linux ); fluency in 13 scripting/programming languages (including C, C++,C#, Python, Visual Basic, Java, Perl and SQL); advanced knowledge of developer applications, tools, methodologies and best practices (including OOD, client/server architecture and self-test automation); Managing and Configuring Embedded Systems (Busybox) as well as IOT Devices such as Arduino, Raspberry PI, CubieBoard, Beaglebone, Intel Galileo and Intel Edison; Configuration management using Ansible. system virtualization using QEMU, Virtual Box, VMWare, XEN and Microsoft Hyper-V. I truly believe in continued education and research, and continue to seek new software and methods to assist with product development. I hope to bring my knowledge, and future knowledge to any organization i work in.
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    Deployment Automation
    Kubernetes
    Linux
    Microsoft Power BI
    Red Hat Enterprise Linux
    Python
    Ubuntu
    Java
    Ansible
    Amazon Web Services
    DevOps
    Bash Programming
    Splunk
    CentOS
  • $30 hourly
    Hello, I'm Emir, a dedicated System Administrator with a passion for Linux and a strong background in various programming languages. Currently pursuing a degree in electrical engineering, I bring over 5 years of hands-on experience working with Linux systems. As a System Administrator, I have a deep understanding of Linux server administration, including installation, configuration, and troubleshooting. I am adept at managing system resources, implementing security measures, and optimizing performance to ensure smooth and efficient operations. My expertise extends to scripting and automation using Python, Bash, and C/C++. I have developed numerous scripts and tools to streamline administrative tasks, automate system maintenance, and enhance productivity. With my strong programming skills, I can create custom solutions tailored to your specific needs. Additionally, I am well-versed in LaTeX, using it to produce high-quality typesetting for academic and technical documents. My proficiency in LaTeX enables me to create polished and professional reports, articles, and documents. Moreover, I have experience with Nginx, a versatile web server and reverse proxy server. I can configure Nginx to efficiently serve static and dynamic web content, act as a reverse proxy, load balancer, and implement SSL/TLS termination. In addition to my technical abilities, I am highly detail-oriented, analytical, and possess excellent problem-solving skills. I am committed to delivering reliable solutions and providing prompt technical support to address any issues that may arise. My skill set includes: Linux server administration (installation, configuration, maintenance) Shell scripting (Bash) Python programming for automation and system management C/C++ development for system-level programming LaTeX typesetting for academic and technical documents Nginx configuration for web serving, reverse proxy, and load balancing Troubleshooting and debugging Performance optimization Security hardening and implementation of best practices I am always eager to expand my knowledge and keep up with the latest industry trends. I take pride in staying up to date with emerging technologies and leveraging them to improve system efficiency and reliability. If you are seeking a highly skilled and motivated System Administrator with a strong Linux background and a commitment to excellence, please don't hesitate to contact me. I am confident in my ability to contribute to your projects and provide effective solutions to meet your goals. Thank you for considering my profile, and I look forward to working with you.
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    Docker
    C
    Server Administration
    System Administration
    C++
    Python
    Scripting
    Bash Programming
    Bash
    CentOS
    Arch Linux
    Gentoo Linux Operating System
    Ubuntu
    Linux
  • $50 hourly
    25+ years Linux System Administrator Native Ukrainian. Living in Slovenia. Open for good offers. I know *nix very well. Just ask me
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    Debian
    Apache Administration
    MySQL
    MySQL Programming
    Firewall
    Network Administration
    TCP/IP
    Cisco IOS
    Unix System Administration
    OpenVPN
    SQL
    Linux
  • $20 hourly
    Skilled Linux System Administrator in the IT industry since 2018. Solid background in installing, configuring, and maintaining Linux OS hardware and software. I have extensive knowledge in handling server-side and website issues, including: ✅️ Troubleshooting ✅️ Website migration ✅️ Email account setup ✅️ Disk space management ✅️ FTP/SFTP configuration ✅️ SSL certificate installation ✅️ DNS management ✅️ Backup creation/restoration Web servers: ✅️ Apache ✅️ Nginx Control panels: ✅️ Cpanel ✅️ Plesk ✅️ InterWorx ✅️ Cloudways panel ✅️ GoDaddy ✅️ DigitalOcean Relational database management systems: ✅️ MySQL/MariaDB. Experience with programming languages: ✅️ Bash ✅️ Python Content management systems maintenance/troubleshooting: ✅️ WordPress ✅️ Magento2 (Security)Monitoring software: ✅️ Nagios ✅️ Prometheus ✅️ Wazuh I'm looking forward to collaborating with you and using my expertise to enhance your IT infrastructure. Let's work together and achieve success!
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    Email Deliverability
    MariaDB
    Bash Programming
    MySQL
    Magento 2
    WordPress
    Website Migration
    cPanel
    Plesk
    Troubleshooting
    Apache HTTP Server
    DNS
    NGINX
  • $20 hourly
    - Linux system administrator with experience of server administration 10 years. - Possesses self-discipline, responsibility and the ability to work with the minimum of - supervision. - Logical mind and solution to the problems of any complexity. - A proven ability to administer and control the operation, configuration and - maintenance of linux servers, as well as having an eye for detail and able to multi-task under pressure. - Having experience of Shell/Bash script writing, XEN/KVM/OpenVZ virtualization. - Can relate well with people at all levels and has the flexibility of working well as part of a team and on my own.
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    Apache Administration
    Kernel-based Virtual Machine
    OpenVZ
    cPanel
    Exim
    FTP
    Bash
    NGINX
    CentOS
  • $38 hourly
    I can maintain, improve, troubleshoot your web servers, services or whole IT infrastructure.I do any tasks related to Virtualization, Linux system administration, Web-servers administration, because I’m a results-driven system administrator with over 7 years of experience in managing security, optimization, monitoring and overall maintenance of 350+ bare-metal and virtual *nix servers of varying distribution and their common services (Nginx, Apache, Squid, PostgreSQL, MySQL, NoSQL, Postfix, Dovecot, Exim, Zabbix, Nagios etc.). Also, with an experience in software development on several programming languages, I have superior technical competence for deep understanding any emerging problems and questions. My strengths are heavily focused in deployment, maintaining, optimization and automatization highload cloud environment. Specializations & skills: • Virtualization: XEN, KVM, oVirt, VMWare ESXi, VMware Horizon View; • Cloud hosting: Amazon, Google Cloud Platform, OVH, Hetzner, Digital Ocean; • Operation systems: Linux (Gentoo, CentOS, RHEL, Debian/Ubuntu etc.), FreeBSD; • Web-servers: Apache, Nginx, Lighttpd, Tomcat, and with ISPmanager; • Amazon WebServices: Cost Optimization, EC2, ELB, S3, Cloudfront, Route53, RDS, WorkMail, Amazon SES, Lambda; • Databases: MySQL, PostgreSQL, MS SQL, various NoSQL; • HA: HAProxy, Pacemaker & Corosync; • CI/CD tools: Jenkins, TeamCity, Gitlab, Gitlab CI; • Code deploy: Capistrano, Jenkins, Git, SVN; • SCM: Puppet, Ansible; • Monitor tools: Zabbix, Nagios, Graphite, Graphana, New Relic, InfluxDB, Collect, Kibana, Sensu, Kapacitor, Telegraph, Prometheus monitoring, Carbon; • Caching: Redis, Memcache, Varnish, Squid; • Mailservers: Postfix, Exim, Dovecot, Sendmail; • Search engine: ElasticSearch, Apache Solr; • Bugtracking: Atlassian JIRA; • Message broker: Kafka, RabbitMQ; • Log management: Graylog; • Backup copy systems: Bacula, Veeam, Bareos; • Programming Language: C/C++, Java, Php; • Scripting: Bash, sh, perl; • VoIP: Asterisk, FreePBX; I'd use this experience to help you out. Tell me what do you want - and I will make you don’t think about how it works.
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    FreeBSD
    DevOps
    Network Administration
    Virtualization
    CentOS
    NGINX
    Ubuntu
    Amazon Web Services
    MySQL
  • $120 hourly
    I am a technology expert with over 20 years of experience in providing secure, stable, and reliable computing infrastructure. My core passion is building from a blank canvas, to turn your project or product into a reality, whether it's a piece of automation or building a complete application infrastructure. I am also a "jack of all trades" administrator/engineer with experience in & exposure to a variety of industries and environments. This gives me a level of expertise that will provide you with a positive and thorough outcome to any project. My expertise includes many aspects of development, systems administration, and operations: - Infrastructure design & implementation, physical and cloud-based - CI/CD pipelines with Jenkins, Gitlab, and GitHub - Migration to self-hosted Gitlab - Microservice and container implementation with Docker & Kubernetes - Automated Linux installation & configuration - Configuration management, automation, and orchestration using Ansible and Puppet - Scripting in bash shell, Python, and Perl - Web server administration with Apache and Nginx - Java application server deployment & administration with Tomcat & JBoss - Linux server hardening & security - Virtualization using KVM and VMWare - AWS administration including EC2, VPC, S3, RDS, Kinesis, Glacier, ElastiCache, CloudWatch, and CloudFormation - Azure administration - Architect & build multi-site enterprise data centers and colocation sites - Centralized authentication using LDAP, FreeIPA, and Active Directory - Systems monitoring & alerting using Nagios and Zabbix - DNS and DHCP configuration and management - Trending analysis using Prometheus, Grafana, Graphite, Elasticsearch, and InfluxDB - High availability operations I am also familiar with Windows server & Active Directory administration, including DNS, DHCP, domain management, group policies, and user management. Client satisfaction is my top priority. I would be happy to work with you on any project, big or small, and help you accomplish your goals. I'm flexible with my working hours to meet your needs.
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    GitLab
    Ansible
    CI/CD
    Git
    DevOps
    Jenkins
    Deployment Automation
    Automation
    Docker
    Ubuntu
    Microsoft Azure
    Python
    Linux
    Amazon Web Services
  • $40 hourly
    I was work as project manager / developer golang, php, mysql, docker and devops enginer at the big team during last 5 years. I was R&D Manager at team with 15 developers and 2 devops enginer. As a team lead I was work at all projects during this time.
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    Automated Monitoring
    Amazon EC2
    MySQL Programming
    CI/CD
    DevOps
    Angular 5
    Amazon ECS
    Symfony
    RESTful Architecture
    NGINX
    Laravel
    PHP
    React
    MySQL
  • $50 hourly
    ## BIO Over 25 years of experience in IT. Over 20 years experience as Systems/Network Administrator for Internet Service Providers. Designed and implemented networks, including WANs, LANs utilizing wired and wireless technologies. Provided server administration for production SaaS website and eCommerce sites, including PCI DSS security compliance. ## Area of Expertise Operating Systems: Linux, FreeBSD, OpenBSD, RedHat, CentOS, Debian, Ubuntu, OpenSuSE, Windows Server (2000-2008). Routers: Mikrotik, Linux, low-end Cisco, SoHo routers. Networking: wireless, wired, LAN, WAN, switches, cabling. Server Software: Apache, Sendmail, postfix, DNS, bind, dovecot, courier, email, mail server, pop3, IMAP, WordPress, Joomla, bash, shell scripting.
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    Cloudflare
    MySQL
    Postfix SMTP Server
    SMTP
    Apache Administration
    FreeBSD
    OpenBSD
    Computer Network
    DNS
    Network Monitoring
    Network Design
  • $55 hourly
    Servers administration, security hardening, malware cleanup, prevention of hackers intrusion, DevOps, DNS, email, web hosting setup, migration, troubleshooting, recovering, monitoring, automation, scripting, supporting, writing documentation. 5+ years on Upwork, 180+ success projects, 100% individual freelancer. I offer reasonable services in areas: Security: • malware cleanup, websites recovery; • penetration testing; • security hardening for servers and websites; Web hosting: • websites migration and web hosting setup; • hosting optimizing for speed and security, troubleshooting; • DNS configuration and troubleshooting, Cloudflare automation; • setup and support hosting panels (Plesk, cPanel/WHM, HestiaCP etc); • deploy and support various CMS (WordPress, Drupal, Typo3 etc); • cloud hosing (VPS) setup and automation (DigitalOcean, Linode, Hetzner, Vultr etc); DevOps and Clouds: • automation scripting with Bash, CMD, PowerShell; • clouds service and infrastructure setup (GCP, AWS, Azure); • virtualization (Proxmox VE, Docker, Podman, Hyper-V, XEN); • Kubernetes; • CI/CD pipelines. IT infrastructure administration tasks: • monitoring and maintain of servers and infrastructures; • DNS configuration, mail servers; • mesh networks (Netmaker, Zerotier etc), Wireguard, VPN (IPSec); • servers and workstations administration (Windows, macOS, Linux); Systems and services troubleshooting, data recovery: • OS restoring and boot recovery; • data, file systems and RAID recovering; • software and systems troubleshooting.
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    Debian
    Disaster Recovery
    Data Recovery
    Web Server
    Scripting
    Website Security
    Web Hosting
    Cloudflare
    Proxmox VE
    Virtual Private Server
    DNS
    Ubuntu
  • $50 hourly
    Seasoned DevOps consultant with 14+ years in IT, specializing in high-quality, scalable, and secure solutions. Expertise includes AWS, Kubernetes, Docker, CI/CD, and Terraform, coupled with extensive database experience. Proven track record implementing efficient CI/CD pipelines (GitLab, Jenkins, AWS Pipeline) resulting in reduced deployment time and enhanced system reliability. Proficient in various AWS services (EC2, S3, RDS, EKS, ECS, Security services) for high-availability solutions. Adaptable to industry trends, staying current with DevOps and AWS advancements, including Kubernetes and serverless architecture. Confident in streamlining deployment, strengthening security, reducing costs, and improving system reliability for your organization. Fluent in English, embracing communication as yet another solution to many ops issues.
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    Network Administration
    Windows Server
    WSO2
    Scripting
    Oracle Database
    DevOps
    Terraform
    Amazon Web Services
    Git
    Jenkins
    Deployment Automation
    Infrastructure Management
    Docker
    CI/CD
  • $38 hourly
    I have 30-years experience in network projects including design, implementation, system administration and in software development. For the first 5 years of my career I worked on software development: coding and especially testing. For the last 25 years I'm working on implementation and maintenance of University of Nis WAN. Last 20 years I'm deeply involved in AMRES (Academic Network of Serbia) project. Don't fix it if it ain't broken, don't break it if you can't fix it! SKILLS SUMMARY - Any system administration tasks - Operating Systems: any *nix (Linux, FreeBSD, SGI IRIX, SCO, Solaris, OSX), Windows 3.1/9x/Me/XP/Vista/W7/W8/W10, WinServer NT/2K/2003/2008/2012/2016 - LAN & WAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI and Wireless LANs. T1/T3, SDH/SONET, Frame Relay, WDM, ISDN, ADSL, SHDSL, Cable Modems, Cellular, X.25. - Network Protocols: TCP/IP, IPv6, UDP, OSI, CDP, IP Multicast, IPSec, VoIP, Routing, VLANs, Bridging, Trunking, VPN, SNA, DLS - Network Services & servers: SMTP/POP3/IMAP, FTP/SFTP, Telnet/SSH, HTTP/HTTPS, DNS, DHCP, NNTP, NTP, LDAP, SNMP, NETBIOS, Apache, Nginx, MySQL, Plesk, cPanel, Zimbra, VMware, CentOS, Ubuntu, Debian - Network Equipment: various types of modems, firewalls, switches and routers. - Dedicated, VPS and cloud environment servers (Amazon AWS, Google Cloud, MS Azure, Digital Ocean, Linode). - Programming Languages: Unix Shell scripting, BASH, C, Pascal, MS Visual Basic, PHP, HTML, (a bit of Python).
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    CentOS
    Ubuntu
    System Administration
    Apache Administration
    SSL
    Let's Encrypt
    Firewall
    Red Hat Administration
    Internet Security
    Cloudflare
    Zimbra Administration
    Unix System Administration
    Network Security
    Network Administration
  • $130 hourly
    Are you looking for a Cloud DevOps/ SecOps Engineer with expertise in automation and keeping it secure? Look no further! Hello, my name is Jerry, and I am a Cloud DevOps/ SecOps Engineer with extensive experience in building cloud infrastructure, automating everything, and keeping it secure. Here are some of my technical highlights: Security • Cloud security • HIPAA/ PCI/ NIST/ SOC 2 • Best Practices • Vulnerability Management • SAST/ DAST • Audits Programming Languages • bash • golang • nodejs • php • python Configuration Management • CDK, CloudFormation, Serverless, Terraform • Ansible, Chef, SaltStack CI/CD • AWS CodePipeline/CodeBuild • BitBucket • GitHub • GitLab • Jenkins Infrastructure • Autoscaling and Load Balancing, Containers, Serverless, and more. • API Gateway, CloudFront, CloudTrail, CloudWatch, Cognito, Config, Control Tower, DMS, EC2, ECS/Fargate, ElastiCache, GuardDuty, Inspector, Kinesis, Lambda, RDS, Route53, S3, Security Hub, SSO, VPC, and more. As a Cloud SecOps/ DevOps Engineer, I believe in automated and reproducible infrastructure that is secure to meet your security and scaling requirements. I have over 12 years of experience in engineering that can help with your infrastructure, automation, and security needs. Send me a job invite to discuss how we can work together to fulfill your needs.
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    Automation
    Serverless Computing
    DevOps
    Systems Engineering
    Cloud Architecture
    Containerization
    CI/CD
    API
    Python
    Amazon Web Services
    Application Release Automation
  • $65 hourly
    Discover the benefits of working with a U.S. "Top Rated" Developer with over 17+ Years of Magento / Wordpress experience: ☑ Easy communication. No more "Oops sorry I don't understand" or mix up due to translation problems. Schedule a call with me any time to go over any new tasks or upcoming projects. ☑ Safe and Secure. 3rd world developers may not be who they say they are. They will use Upwork jobs to get onto your server and install malware and credit card siphoning programming. My identify is verified and I've been a trusted member of the Magento eco-system since 2007. ☑ Enterprise level ticket system. I utilize one of the top support / work flow ticket systems in the industry. You will be able to easily create new support tickets / issues with me and have your problem handled efficiently. ☑ Integration with our private GIT repository. This means that all work which is not ideal to be performed in the live admin (majority of development work) will occur on a local development copy. All modifications are recorded in our GIT versioning system, for full history and clarity into changes made throughout the life of our business relationship. ☑ Full development process. Each issue / task goes through a comprehensive work flow which includes: Investigation and clarification, Development process, Quality Assurance review, Code Review, and Deployment. 20,000+ Working hours with Magento 1.x (CE and EE) and Magento 2.x (CE and EE), 10,000+ Working hours with Wordpress / WooCommerce. Brian Wade President / Senior Developer
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    HTML5
    HTML
    Ecommerce Website Development
    WooCommerce
    Magento
    PHP
    WordPress
    MySQL Programming
    Ecommerce Development Consultation
    Unix
    WordPress Theme
    Magento 2
  • $14 hourly
    Professional System Administrator: Building, Installing, Configure, Fix errors. Developer: PHP, MySQL. Experience: 5+ years. Business and Individual clients wellcome! -Yes, I am working quickly. -Yes, I will answer on any questions. -Yes, I will do it cheap
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    Web Development
    Network Administration
    MySQL
    DigitalOcean
    SSL
    Zabbix
    cPanel
    Virtual Private Server
    PHP
    NGINX
    Apache HTTP Server
    CentOS
    Ubuntu
    Linux
  • $23 hourly
    Hello, I am a Unix System Engineer with 7+ years of professional experience in the Information Technology field. My expertise encompasses a wide range of areas, including: 🖥️ Operating System Administration: Proficient in managing Unix-based operating systems, ensuring optimal performance, security, and reliability. 💾 Database Management: Skilled in database administration, including installation, configuration, tuning, backup, and recovery of various database systems. 🔒 Network Security Engineering: Experienced in implementing robust network security measures, conducting vulnerability assessments, and ensuring compliance with industry standards. 📊 Project Management: Capable of effectively leading and coordinating IT projects, managing timelines, resources, and stakeholders to achieve successful outcomes. 🌐 Networking Administration: Proficient in network administration tasks, such as configuring routers, switches, firewalls, and implementing network protocols and services. 🌐 Web Server Administration: Skilled in managing and maintaining web servers, including installation, configuration, and optimization of web server software. I possess a strong commitment to delivering comprehensive maintenance services for existing server environments, as well as the ability to design, deploy, configure, and maintain future projects. I continually strive to stay updated with emerging technologies and industry trends, ensuring that I can provide innovative solutions tailored to your specific needs. I am enthusiastic about new tech endeavors and eager to discuss how we can collaborate to achieve your goals.
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    Bash Programming
    Application Performance Monitoring Software
    Python Script
    Deployment Automation
    System Administration
    DevOps
    Jenkins
    Git
    Kubernetes
    Python
    Amazon Web Services
    Docker
    Ansible
  • $20 hourly
    I'm Nevin Davis, I have a degree and diploma in Computer Science and Engineering. I'm a redhat certified engineer with 8 years of experience as a server administrator. My strengths and skills are:- * Well knowledge in AWS, Google Cloud, Azure... etc * Sound knowledge in Linux/Unix like operating system. * Deep knowledge in cPanel/WHM. * Familiarize with Plesk, Interworx, Website Panel, Webmin, Directadmin. * Automated installation of Red Hat Enterprise Linux. * Network configuration and troubleshooting. * Server hardening. * Managing partitions and file systems. * Managing flexible storage with LVM. * User Management & Administration. * Managing selinux. * Basic creation and troubleshooting on scripting like Shell/Perl. * Installing and managing softwares. * Managing installed services. * Kernel re-configuration & parameter tuning. * Installation of patches and packages. * File sharing with FTP. * NFS configuration & administration. * Job Scheduling and Automating process using CRON. * XEN, OpenVZ virtualization. * RAID * Idera Back up server management. * Familiarize web servers- Apache, Litespeed, Nginx. * Deep knowledge in SolusVM. * Migration. * SSL Cert generation, installation. * IPMI, KVM console management. * Billing Module Management(whmcs,vision,osticket) * VPS, Shared and Dedicated server Management * Monitoring (Nagios) & troubleshooting with performance related issues. * Installation of Antivirus and Troubleshooting with virus related issues.
    vsuc_fltilesrefresh_TrophyIcon Linux System Administration
    Web Host Manager
    CentOS
    SSL
    WHMCS Development
    Red Hat Administration
    Domain Migration
    OpenVZ
    cPanel
    WordPress
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How to Hire Top Linux System Administrators

How to hire Linux system administrators

Maintaining IT infrastructure is a lot of work. A Linux system administrator can make backups, implement updates, and build Linux servers for your organization.

So how do you hire Linux system administrators? What follows are some tips for finding top Linux system administrators on Upwork.

How to shortlist Linux system administration professionals

As you’re browsing available Linux system administration consultants, it can be helpful to develop a shortlist of the contractors you may want to interview. You can screen profiles on criteria such as:

  • Industry fit. You want a Linux system administrator who understands your industry so they can help you figure out how best to reach your target market.
  • Project experience. Screen candidate profiles for specific skills and experience (e.g., writing automation scripts with Ansible).
  • Feedback. Check reviews from past clients for glowing testimonials or red flags that can tell you what it’s like to work with a particular Linux system administrator.

How to write an effective Linux system administration job post

With a clear picture of your ideal Linux system administrator in mind, it’s time to write that job post. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project.

An effective Linux system administration job post should include:

  • Scope of work: From database migrations to building agentless architectures, list all the deliverables you’ll need.
  • Project length: Your job post should indicate whether this is a smaller or larger project.
  • Background: If you prefer experience with certain server-side technologies or developer tools, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Ready to build, upgrade, and maintain your Linux-powered IT infrastructure? Log in and post your Linux system administration job on Upwork today.

LINUX SYSTEM ADMINISTRATORS FAQ

What is Linux system administration?

Linux is an open-source operating system (OS) that’s easier to secure, update, and maintain than closed-source offerings such as Windows. Because Linux is the most popular OS for servers, Linux system administrators have access to a lot of developer resources.

Here’s a quick overview of the skills you should look for in Linux system administration consultants:

  • Linux system administration
  • Linux distros (e.g., Ubuntu, Unix)
  • IT automation
  • Database technologies (e.g., MySQL, PostgreSQL)
  • Systems languages (e.g., C, C++, Golang)
  • Back-end languages (e.g., Java, PHP)
  • Application technology stacks such as LAMP (Linux, Apache, MySQL, PHP)

Why hire Linux system administrators?

The trick to finding top Linux system administrators is to identify your needs. Are you switching from a cloud-based infrastructure to a physical IT infrastructure for the first time? Do you require an admin familiar with DevOps to implement continuous integration and a continuous delivery pipeline? The cost of your project will depend largely on your scope of work and the specific skills needed to bring your project to life.

How much does it cost to hire a Linux system administrator?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Linux system administrator may command higher fees but also work faster, have more specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their Linux system administration services more competitively.

Which one is right for you will depend on the specifics of your project.

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