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Rating is 4.8 out of 5.
4.8/5
based on 5,427 client reviews
  • $150 hourly

    • 5.0/5
    • (233 jobs)
    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!
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    FreePBX
    MySQL
    Kamailio
    Linux System Administration
    Amazon Web Services
    VoIP Administration
    Asterisk
    API Development
    C
    VoIP Software
    LAMP Administration
    Session Initiation Protocol
    Linux
    VoIP
    Business with 10-99 Employees
  • $120 hourly

    • 5.0/5
    • (30 jobs)
    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.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    GitLab
    Ansible
    CI/CD
    Git
    DevOps
    Jenkins
    Deployment Automation
    Linux System Administration
    Automation
    Docker
    Ubuntu
    Microsoft Azure
    Python
    Linux
    Amazon Web Services
  • $50 hourly

    • 4.8/5
    • (117 jobs)
    ## 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.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Cloudflare
    MySQL
    Computer Network
    Network Monitoring
    Network Design
    DNS
    Postfix SMTP Server
    Apache Administration
    SMTP
    OpenBSD
    FreeBSD
    Linux System Administration
  • $105 hourly

    • 4.9/5
    • (243 jobs)
    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
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Web Hosting
    Cloudflare
    System Administration
    NGINX
    SSL
    Plesk
    Red Hat Enterprise Linux
    CentOS
    cPanel
    Linux System Administration
    LAMP Administration
    Network Administration
    TCP/IP
    Amazon Web Services
    Amazon EC2
  • $65 hourly

    • 4.1/5
    • (264 jobs)
    Discover the benefits of working with a U.S. "Top Rated" Developer with over 8+ 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 for over 8 years. ☑ 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 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. 10,000+ Working hours with Magento 1.x (CE and EE) and Magento 2.x (CE and EE), 1,000+ Working hours with Wordpress. Brian Wade President / Senior Developer
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Ecommerce Website Development
    Magento 2
    Ecommerce Development Consultation
    WordPress Theme
    WooCommerce
    WordPress
    HTML5
    HTML
    Unix
    Linux System Administration
    MySQL Programming
    PHP
    Magento
  • $130 hourly

    • 5.0/5
    • (25 jobs)
    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 Arch Linux
    Automation
    Serverless Computing
    DevOps
    Linux System Administration
    Systems Engineering
    Cloud Architecture
    Containerization
    CI/CD
    API
    Python
    Amazon Web Services
    Application Release Automation
  • $225 hourly

    • 5.0/5
    • (88 jobs)
    Hey, I'm James. I've been a self-employed business network and server admin for 21+ years. I've worked with all flavors of Linux and Windows for some of the best businesses in the country. My average customer that I've worked with has been with me over 10 years. I specialize in analyzing current infrastructure and determining the needs of my clients then providing a written plan to correct any issues and protect the business systems from hackers and cryptolockers. In one of my recent projects, I consulted with a six billion dollar, publicly traded company to completely redesign their infrastructure to have redundant firewalls, VMWare host servers, leased fiber lines directly to Amazon AWS with a VPN backup over a regular Internet circuit that would automatically fail over in case of any circuit issue. The vmware servers would auto migrate the guests in the case of overload or host server failure. All power systems were redundant with two powersupplies for each piece of equipment. At the end of this project, we had reduced their monthly cost of management by over 25,000 per month and reduced their server load from over 20 servers to just 8 servers. When you hire me, here's what you can expect: 1. First, click the invite button to invite me to your job. 2. Once everything is accepted, I'll jump on the phone or a zoom with you 3. We'll go over the details of the job and I'll ask questions to drill down to the specific goals you want to accomplish. 4. I'll provide you with a high level written plan to address your goals along with expected time needed to complete your project. 5. When we agree on the timeline and process, I will execute the plan. So, if this sounds good, just click the "invite" button and we can start.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    System Monitoring
    NGINX
    Docker
    Network Engineering
    System Installation & Upgrades
    Network Administration
    Network Planning
    Network Monitoring
    Network Security
    Network Design
    Email Design
    Web Hosting
    Virtualization
    Windows Administration
    Linux System Administration
  • $50 hourly

    • 5.0/5
    • (45 jobs)
    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.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Automated Monitoring
    Amazon EC2
    Symfony
    RESTful Architecture
    Laravel
    Linux System Administration
    Angular 5
    React
    PHP
    Amazon ECS
    MySQL
    MySQL Programming
    CI/CD
    NGINX
    DevOps
  • $100 hourly

    • 4.9/5
    • (1,058 jobs)
    No voice chat. AWS Expert - EC2, RDS, Load Balancing, Auto Scale, S3, Cloudfront, VPC, Route53, Workspaces, Workmail, Codedeploy, costs optimization. Microsoft Azure, Google Cloud - environment configuration, migrations, infrastructure analyzing and optimization. Cloudflare configuration. Server performance optimization - Apache, Nginx, Varnish, Mysql/MariaDB, php-fpm. Wordpress - performance optimization, security, migrations, malware clean up. Prestashop - AWS deployment, nginx configuration. Server and configuration optimization, security and speed up. Prestashop to WooCommerce migrations. Magento - security, migrations, environment configuration, performance optimization. Matomo, Sendy, Jira, OwnCloud, OpenVPN - installation, configuration, performance optimization. Dedicated Servers and VPS setup, configuration, security - both Windows and Linux. Work with CentOS, Ubuntu, Debian, Amazon Linux, FreeBSD, Windows 2003/2008/2012/2016 Servers. Server administration Panels, setup and configure - Plesk, DirectAdmin, WHM, Cpanel, Webmin, WHMCS, VestaCP, CWP. MySQL, MSSQL, Apache, IIS - setup, configuration, optimize for performance.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    cPanel
    Linux
    PrestaShop
    Zen Cart
    Ubuntu
    Malware
    Amazon EC2
    Domain Migration
    Linux System Administration
    CentOS
    WordPress
    Amazon Web Services
  • $38 hourly

    • 5.0/5
    • (118 jobs)
    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 Arch Linux
    CentOS
    Ubuntu
    System Administration
    Apache Administration
    SSL
    Let's Encrypt
    Linux System Administration
    Firewall
    Red Hat Administration
    Internet Security
    Cloudflare
    Zimbra Administration
    Unix System Administration
    Network Security
    Network Administration
  • $100 hourly

    • 5.0/5
    • (85 jobs)
    Telecommunication and Systems engineer with a focus on Cloud, Networking and Linux, experience in Infrastructure management and deployment. Deployed Private Cloud infrastructure, Datacenter Network Design for Multi-tenancy, fault-tolerant design, NIC Bonding and VRRP for High Availability. Stack: *Full virtual networking with vSwitches and vRouters *VLAN, VxLAN, GRE and Overlay tunnels *IPv6 *MP-BGP, EVPN *Firewalling *VPN/OpenVPN/IPSec/WireGuard/Site to Site and Client-Server *Advanced Linux management: IPTables, Kernel modules, Virtualization, Networking. *Traffic engineering *Advanced StrongSwan IPSec tunnels, XFRM *Cloudstack with Open vSwitch *OpenNebula with Open vSwitch *OpenDaylight SDN controller with OpenvSwitch *Advanced Proxy setup with Squid/Nginx *Virtuozzo and OpenVZ *KVM and Libvirtd *RADIUS and FreeRADIUS *Pacemaker/Corosync/Keepalived HA cluster *MTLS design and implementation with NGINX *IoT gateway implementation with Raspberry Pi and 4G modems *DevOps experience with Chef and Ansible *Bash and Python scripting
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Internet of Things
    Apache CloudStack
    Linux System Administration
    OpenVPN
    Computer Network
    Private Cloud
    Kernel-based Virtual Machine
    System Administration
    Firewall
    Ubuntu
    Network Security
    Linux
    Internet Protocol Security
    Network Engineering
    VPN
  • $180 hourly

    • 5.0/5
    • (375 jobs)
    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!
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    MySQL
    Linux System Administration
    WordPress
    Page Speed Optimization
    PHP
    API Development
    Performance Optimization
    WooCommerce
    NGINX
    Amazon Web Services
    Google Cloud Platform
  • $90 hourly

    • 4.9/5
    • (22 jobs)
    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 have experience managing and securing multiple Linux systems in a data center or in the 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, Sensu, 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. I can also use the OpenAI API to integrate some simple applications with GPT-4. 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, MSSQL, MongoDB, Oracle Cloud Providers: AWS, Azure, Digital Ocean, Google Cloud, IBM Cloud Networking: Cisco switches, Artista switches, Netscaler LBs, AWS Elastic Load Balancing, Linux networking/firewall Hardware: IBM Servers, Dell Servers, HP Servers, HP 3Par SAN, Dell EqualLogic SAN, IBM V7000 Block & File Storage, APC PDUs Virtualization: Proxmox VE, KVM, Oracle VM, VirtualBox, VMware, Xen 4, Docker/Containers
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    CentOS
    Ubuntu
    Linux
    PostgreSQL
    WordPress
    Systems Engineering
    Blockchain
    MySQL
    Cloud Computing
    Security Infrastructure
    Python
    Amazon Web Services
    Linux System Administration
  • $55 hourly

    • 5.0/5
    • (187 jobs)
    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; • deleted data recovery; • software and systems troubleshooting; • filesystems and RAID recovering.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Debian
    Disaster Recovery
    Data Recovery
    Web Server
    Scripting
    Website Security
    Web Hosting
    Cloudflare
    Proxmox VE
    Linux System Administration
    Virtual Private Server
    Malware
    DNS
    Ubuntu
  • $40 hourly

    • 5.0/5
    • (31 jobs)
    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.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    CI/CD
    Amazon Web Services
    Golang
    Amazon ECS
    AWS CodeDeploy
    AWS CloudFormation
    Linux System Administration
    Python
    Ansible
    Jenkins
    Docker
    Kubernetes
  • $49 hourly

    • 5.0/5
    • (146 jobs)
    Welcome to my upwork profile! With a rich 15 yrs background in Linux Server Administration and Web Development, I specialize in delivering high-performance, secure digital solutions. My journey began as a PHP developer, evolving into server-side configuration and performance optimization, especially for high-traffic WordPress sites. Your project deserves the best, and my diverse skill set ensures I can provide exactly that. **Skills & Expertise:** Linux Server Administration: Proficient in AWS, GCP, Azure, Linode, Digital Ocean, OVH, Vultr, Contabo, Cloudways, Gridpane, WPengine, Bluehost, Dreamhost, Godaddy, Namecheap. Control Panels: WHM, Cpanel, Vestacp, AApanel, Plesk, Webmin, ISPConfig. Server Configurations: Nginx, Apache, Lightspeed, PHP-FPM, caching solutions (cigi cache, redis, memcache, opcache), Databases (Mysql, MariaDB), Programming (Python, MongoDB, Node.js, React.js, Flutter), Docker. Web Development: Expertise in frameworks (Laravel, CakePHP, Codeignitor), CMS (WordPress including Woocommerce, Plugin & Theme Development, Peepso), various page builders (Elementor, Beaver Builder, Divi, etc.), and themes (Divi, Astra, Storefront, Inspiro, etc.). AWS High-Level Expertise: Handling Elastic IP, S3 buckets, EC2 Instances, Route 53, Lambda, IAM, SNS, SES, DNS, Lightsail, RDS, Aurora, WAF, SQS, AutoScaling. Security & Compliance: Virus/Malware removal, Blackhole Exploit detection, Google Adwords, DDos Attack prevention, Firewall configurations (IPTables, UFW), Antivirus installations, Real-time monitoring. **Professional Highlights:** Custom Development: Creation of custom funnel systems in WordPress and Laravel, integrating with mailing systems (Aweber) and payment gateways (PayPal, Crypto). Backup Solutions: Proficient in Google Drive, Dropbox scripting, familiar with various backup plugins like Updraft, All-in-One Migration, Amazon S3 buckets, github, gitlab, bitbucket. Email & DNS Management: Skilled in setting up and managing A records, MX, Mail Server Configurations, Google Workspace, Zoho, Sendgrid, Mailgun. Performance Optimization: Specialized in high-speed stack configuration for WordPress sites with heavy traffic. **Why Me?** Versatile Experience: From Joomla, Drupal, Magento to complex server-side configurations. Client-Centric Approach: Understanding your needs, delivering solutions that exceed expectations. Commitment to Quality: Ensuring top-notch performance, security, and reliability in every project. **Let's Connect:** Discuss your project needs and let's strategize the best path forward. Looking forward to creating something amazing together!
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Web Hosting
    Network Administration
    Website Security
    Linux System Administration
    WordPress Plugin
    Web Application Security
    Mail Server Implementation
    Internet Security
    WordPress Malware Removal
    Penetration Testing
    MySQL
    Virus Removal
    Network Security
    API
    PHP
  • $40 hourly

    • 5.0/5
    • (360 jobs)
    More than 15 years of working experience in networking and server administration. Administering and scripting networking applications, database applications, web applications and internet & intranet servers In position of expert engineer for networking infrastructure, IT security expert and senior linux/windows/OSX administrator In charge of designing of LAN/MAN/WAN networking infrastructure, designing and implementation of fiberoptic backbone and copper networking installation. Administration of linux servers and networking devices (switches, routers, firewalls, NAS) am in charge of more than 150 linux servers, both physical and virtual Working with L2/L3 switches, routers, firewalls, NAS devices, switching&routing protocols (RIP, OSPF, SNMP, IGRP/EIGRP, VTP, BGP). Certified Cisco and Mikrotik networking engineer. OS platforms - Red Hat/Centos, Debian/Ubuntu, Gentoo, OpenSolaris, BSD flavors, Windows, OSX Server. Networking equipment - Cisco, HP, Mikrotik, ZTE, Huawei Some of the open-source technologies and daemons I have experience with: - bash, perl and python scripting - apache/nginx web servers (standalone, or in backend mode for tomcat, with one or many virtual hosts) - mysql/postgresql database installation and administration - squid (with or without dansguardian+clamav as content filter/realtime AV) - cloud (openstack, AWS, Azure, gcloud, OVH, rackspace, digital ocean....) - snort (with BASE and Snorby as web GUI) and suricata IDS - iptables (with or without web GUI) - BIND (standalone or master/slave) - postfix (as MTA, combined with alot of different tools such as spamassassin, amavis, clamav, roundcube, postfixadmin, dovecot, cluebringer, mailgraph) - zenoss, zabbix and cacti (with plugins and OUIs) - dovecot (as pop3/imap server of choice, combined with postfix and amavis, clamav, roundcube, postfixadmin, spamassassin) - amavis (with alot of customized settings for things such as double AV scanning, DKIM support, catching of spam headers...) - spamassassin (standard and heuristic bayesian analysis, fine tuning of scoring, OCR integration, SPF integration....) - ClamAV (using both standard and unofficial virus definitions, making of 0-day virus signatures caught in the wild...) - freeradius (with MySQL backend for AAA) - samba (in all possible variatons - standalone simple CIFS sharing, member of windows AD, standalone AD controller, one of the controllers in windows AD) - pureftpd, vsftpd and proftpd (as standalone servers or with virtual users) - xen, vmware, hyperv and kvm virtualization (stock or Xenserver/Proxmox distributions) - asterisk (via Elastix linux distribution) - roundcube as preferred web-mail interface (with alot of customized plugins) - openmediavault/openfiler linux distros for NAS - HA clustering (failover based on DRBD and heartbeat/pacemaker+corosync) - NUT (daemon for UPS monitoring and controlling) - openvpn (with various configurations and backends) - pptp vpns (with various configs and backends) - all kind of linux distributions - RH, CentOS, openSuSe, Debian, Ubuntu, Gentoo, Arch.... - hardening of linux distributions (iptables, fail2bain, allow/deny mechanism, AIDE, SELinux, AppArmour, occasional pen testing) - puppet automation - rancid (centralized backup of config files) - bacula, urbackup and rsync backup
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Cluster Computing
    Plesk
    Citrix Hypervisor
    MikroTik RouterOS
    Postfix SMTP Server
    Linux System Administration
    Varnish Cache
    MySQL
    cPanel
    NGINX
    Docker
    System Monitoring
    Network Security
    Network Administration
    CentOS
  • $14 hourly

    • 5.0/5
    • (40 jobs)
    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 Arch Linux
    CentOS
    Network Administration
    Website Development
    MySQL
    Virtual Private Server
    Linux
    Ubuntu
    cPanel
    PHP
    DigitalOcean
    Zabbix
    SSL
    NGINX
    Apache HTTP Server
    Linux System Administration
  • $60 hourly

    • 5.0/5
    • (26 jobs)
    Hi, I am Zeeshan; I have good experience in Web Designing and Developing. I have been working on the web since 2011, and I have good knowledge to develop websites in WordPress, create custom functionality and fix issues.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Linux System Administration
    MySQL
    HTML5
    PHP
    Web Development
    jQuery
    WordPress
    JavaScript
    CSS 3
  • $55 hourly

    • 4.9/5
    • (392 jobs)
    I am working: - 20+ years on IT - 10+ years on AWS Cloud projects I am a team leader of AWS Advanced Consulting in multiple projects. Self-starter who applies individual initiative to complete the job on time and provides operational and automation support with a 24/7 technical response team staffed by AWS.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Kubernetes
    Web Service
    Docker
    DevOps
    System Administration
    Amazon Web Services
    Terraform
    Ansible
    Solution Architecture
    Linux System Administration
    PHP
    CI/CD
    Linux
    Python
    MySQL
  • $150 hourly

    • 5.0/5
    • (6 jobs)
    Linux, UNIX, Proxmox, pfSense, Ubiquiti, Cisco, Arista, Cloudflare, Storage, NAS, SAN, DAS, Network, IoT, Raspberry Pi, WiFi, Data Center, Cloud, IT Transformation, IT Architecture, Monitoring, Grafana, HAProxy, Ubuntu, MAAS, LXC & Docker
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Unix System Administration
    Proxmox VE
    Ubuntu
    Network Administration
    Computer Network
    Linux
    Virtualization
    Information Architecture
    Storage Area Network
    System Administration
    Raspberry Pi
    Linux System Administration
    Enterprise Architecture
    Information Technology Strategy
    Network Monitoring
    Managed Services
  • $25 hourly

    • 5.0/5
    • (27 jobs)
    Qualified and experienced Systems administrator with over 9 years of diversified expertise in the Information Technology industry, including 7+ years of professional experience in Enterprise Network Projects Good experience in Linux server administration • Expert in LAMP/LEMP Administration • DNS management (Registrar end and Hosting end), • Mail Services: (Postfix, Qmail, Exim), • Web hosting Control panels: (WHM/cPanel, Plesk, Webmin/Virtualmin, VestaCP, Ajenti) • CMS: WordPress, Joomla, Drupal, Magento, phpBB • Hands on experience in Managing Shared , Reseller, VPS and Dedicated Web-Hosting • Advanced knowledge and experience in handling Plesk and cPanel . • Expert in server migration • Virtualization ( Parallels Virtuozzo/openVZ, KVM,Vmware Esxi) • Cloud hosting (Amazon EC2, AWS, S3, Digital Ocean, Rackspace), • Server performance tuning and page speed optimization. Expertise pertaining to the following: ● Medium and large scale computer networks setup and maintenance, including both wired and wireless networks ● Router installation and configuration, products from vendors like Cisco, Linksys, D-link, 3com etc ● Indepth knowledge of routing protocols EIGRP, OSPF, RIP ● Linux Operating System, including services such as LAMP (Linux Apache mySQL PHP), DNS, FTP, NFS, NIS, SAMBA. ● Virtualization platforms such as Microsoft Hyper-V and VMware Workstation ● Network transmission mediums like CAT5e, Wi-FI, Wimax, ADSL2+ ● In Depth knowledge of Cisco networking equipment such as 3500 series switches and 2811 routers ● Configuration and Maintenance of Load Balanced Squid Servers on linux. ● Installation and configuration of Linux based firewalls such as Pfsense, Untangle and Smoothwall
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Network Design
    Windows Administration
    Cisco Router
    VMware ESX Server
    cPanel
    Apache Administration
    Ubuntu
    Network Administration
    Virtualization
    Linux System Administration
  • $20 hourly

    • 5.0/5
    • (4 jobs)
    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.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Multiprotocol Label Switching
    Network Engineering
    Automation Anywhere
    Network Design
    IPv6
    PHP
    Python
    Web Application
    C#
    Huawei AR
    Network Administration
    Cisco Router
    C
    Linux System Administration
    Firewall
  • $30 hourly

    • 4.0/5
    • (11 jobs)
    My primary experience is Systems Administration with linux where my major responsibilities include building and support infrastructure for sofware engineering teams in different locations. Work with cloud environment like Rackspace, Linode, Digital Ocean and AWS. Also experienced in Devops using tools like Docker, Ansible, Kubernetes, Vagrant, Terraform, Jenkins including buiding custom tools to automate CI using web technologies and scripting languages. Lead software engineering team to build products for both internal and external customers in multiple geographical locations building projects in various programming languages ranging from Shell scripts, Powershell, Web technologies, C/C++, Java to Golang. I have a Bachelor Degree in Computer Science from Kwame Nkrumah University of Science and Technology in Ghana and a Masters Degree (Mphil) in Computer Science also from Kwame Nkrumah University of Science and Technology in Ghana. I am also LPI and CCNP Certified I am flexible to project demands and shifting of priorities because I work strictly with deadlines. I also love to learn and gain more exposure to new ideas especially to achive my client's goals. Looking forward to working with you.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Database Management
    CI/CD
    Ansible
    Terraform
    ELK Stack
    Docker
    Kubernetes
    Golang
    Linux System Administration
    DevOps
  • $69 hourly

    • 4.7/5
    • (98 jobs)
    I'm the most experienced Joomla developer on UpWork. I have been working exclusively with Joomla for 15 years, specialised 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 100% job success score and have achieved a top rated plus status. I can build a new Joomla extension from scratch, including Joomla 4 extensions. I can also upgrade your Joomla website to the latest Joomla 4 version, and modify any extension to work exactly how you need it to. We can speak or chat about your Joomla project, do not hesitate to contact me.
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Web Development
    Linux System Administration
    Web Services Development
    Business Services
    JomSocial
    Joomla Migration
    Plugin Development
    CMS Development
    JavaScript
    CSS
    Joomla
    HTML
    PHP
    MySQL
  • $50 hourly

    • 5.0/5
    • (15 jobs)
    I have extensive experience of working with huge enterprises (ISP, Telecom, Defence) and delivering operational support and enterprise scale projects with 100% success rate. My work experience is in the following areas. - System Administration (Windows, Linux, Solaris) - Enterprise Storages (SAN, NAS, DAS) - Enterprise Backup (Veeam, HP Data Protector, EMC Networker) - Disaster Recovery (VMware SRM, Storage replication) - Virtualization (VMware, Hyper-V) - Containers (Dockers, Kubernetes) - Public Cloud (AWS, Azure) - Devops (Ansible, Foreman, Puppet) - High Availability (Windows Cluster, Redhat Cluster, HP Service Guard) - Scripting (Bash, PERL, Powershell, PHP) - Other services (Active Directory, Email servers, RADIUS servers, DNS, DHCP, LDAP, kerberos) I currently hold following certifications Certifications:- • AWS Certified SysOps Administrator – Associate • AWS Certified Solutions Architect – Associate • AWS certified Security Speciality • Certified Kubernetes Application Developer (CKAD) • TOGAF 9.1 Foundation (Certification Id 112933) • TOGAF 9.1 Certified (Certification Id 112933) • MCSE: Cloud Platform and Infrastructure • MS: Architecting Microsoft Azure Solutions • Microsoft Certified Professional Windows Server 2012. • Microsoft Certified Solution Associate Windows Server 2012. Major Project:- - Design & deployment of Virtual Private Cloud under AWS and migration of business critical applications ensuring HA with multiple AZs and MS SQL mirroring. - Architecting and Designing solution for consolidation of Physical servers on virtual platform to share Infrastructure services between four major Telecom Operators in Asia (VMware, Hyper-V, SCVMM) - Leading the Infrastructure domain to validate Infrastructure solutions and working as Infrastructure architect for major a Telecom Operator
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Server Virtualization
    Storage Area Network
    Backup Administration
    Mail Server Implementation
    Perl
    Amazon EC2
    Bash Programming
    Windows PowerShell
    Linux System Administration
    Microsoft Azure
  • $90 hourly

    • 4.9/5
    • (511 jobs)
    Top-ranked self-motivated professional DevOps and Cloud architect with strong work ethic and productive self-starter – proven with success being a freelancer at Upwork(ex-oDesk). Team player - Participated in multiple projects, joining large teams, effectively co-working with other professionals. Among my long-term customers: - Stanford University - Motorola - Bwin Interactive - Fairchild Semiconductor - Texas Instruments Effective leader - Took over leadership and managed team resources to achieve goals meeting deadlines Experience: 24+ years as an Systems Administrator 17+ years as Network Engineer 12+ years as Cloud Expert and SaaS Architect 8+ years @ DevOps Freelancer for last 14 years (over 70,000hrs worked @oDesk/Upwork)
    vsuc_fltilesrefresh_TrophyIcon Arch Linux
    Deployment Automation
    CI/CD
    Infrastructure as Code
    Docker
    Unix Shell
    MySQL
    Network Administration
    Linux System Administration
    Amazon Web Services
    DevOps
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