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  • $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
    Linux System Administration
    Apache Administration
    FreeBSD
    Computer Network
    DNS
    Network Monitoring
    Network Design
  • $50 hourly
    I set up Web related services, self-hosted Apps such as: - Nextcloud - Seafile - WordPress I setup physical Servers for Virtualization which includes installing the OS and setting up the hypervisor: - FreeBSD with bhyve hypervisor. - Proxmox with or without High Availability using CEPH or ZFS. - XCP-ng I setup NAS storage: - Synology NAS. - TrueNAS. I work with: - Docker, Nginx, Apache, SSL, OpenVPN, Wireguard, Hyper-V, VirtualBox, Esxi, ZFS, Syncthing. - Automated backups using rsync. - Backups using ZFS. I setup personal VPN servers: - OpenVPN - Wireguard This includes a VPN server in the cloud or a VPS and either multiple clients or a Travel router such as GL-iNet or Mikrotik as a VPN client. Or communication between VPN clients behind NAT. I work with these Data Centers: - Hetzner. - Oracle Cloud. I install Operating Systems on servers. - Ubuntu with root on ZFS - FreeBSD - OpenBSD - Debian - CentOS - Fedora
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    Docker Compose
    Ceph
    PfSense
    Server Virtualization
    Proxmox VE
    VPN
    Virtualization
    Ubuntu
    OpenVPN
    System Administration
    Linux
    Debian
    FreeBSD
    NGINX
    WordPress
  • $55 hourly
    • Self-driven and highly motivated DevOps and Cloud Engineer with 18+ years of overall experience in Development, Support, Deployment, Tools, and Framework Implementation of DevOps, Cloud, Mobile and Infrastructure Automation in Education, Media, and Broadcasting, Banking, Insurance and Finance, Medical and Healthcare domains. • A deep level of subject matter expertise within the DevOps, Infrastructure as a Code (IasC), Platform as a Service (PaaS), SaaS, Virtualization, Containerization, and Continuous Integration & Continuous Delivery (CICD) • Experienced with VMs, Cloud and App Services, Application Gateway, Storage and Networking services in Microsoft Azure and EC2, S3, RDS, Lambda, CloudFormation, CloudFront, Cloud Watch, and WAF in Amazon AWS. • Dexterous in preparing DevOps Strategy, Cloud Strategy, and Migration Strategy for the organizations and plan the migration from on-prem infrastructure to the cloud reducing costs by at least 30%. • Skilled in setting up and orchestrating Kubernetes Clusters from scratch on VMs and also on Managed Services like EKS and AKS. I worked on clusters of size with hundreds of nodes and thousands of pods. • An advanced Infrastructure Automation engineer with experience in administering and automating operations across Linux, Windows platforms. Deploy new infrastructure based on DevOps, Infrastructure as Code with OpenStack, Azure ARM and DSC, Amazon AWS, Terraform and Ansible Tower, Kubernetes, Docker Swarm. • Good experience in Installing and Implementing Logging & Monitoring tools Prometheus, Grafana, Datadog, ELK (Elasticsearch, Logstash, Kibana), App Insights, Zabbix, Cloud Watch for infrastructure, APM, and DB monitoring. • Master in Build automation and orchestrating the pipeline for Continuous Integration, Continuous Deployment and Continuous Delivery in Jenkins, Bamboo, Azure DevOps, and Circle CI • Good at Site Reliability Engineering(SRE) giving prompt support to production infrastructure and application and making sure SLAs and SLOs are reached. Effective in conducting Issue triaging, RCA, and preparing incident reports. • Have excellent hands-on experience on GIT tools like GitHub, Bit Bucket, and also SVN and well versed with branching, tagging, and maintaining the version across the environments using the above SCM tools • An effective technical architect in easily setting up, writing, reviewing, deploying, and testing API and middleware infrastructure for all platforms using web service frameworks like JWS, XML, SOAP, and REST APIs. Good in Swagger
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    DevOps
    Continuous Integration
    Bash Programming
    Virtualization
    Microsoft Windows PowerShell
    Google Cloud Platform
    Microsoft Azure
    Amazon Web Services
    Jenkins
    Docker
  • $25 hourly
    I have experience in web design using WordPress, PHP, JavaScript, HTML and CSS. I also have experience with Linux and OpenBSD systems (web and otherwise), and I certified on Google Cloud (ACE). I specialize in WordPress. Please see the demo sites on the portfolio section for examples of my work and capacities. Hire me, and I'll make sure that you are 100% satisfied!
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    Google Cloud Platform
    Virtual Private Server
    Unix System Administration
    Linux System Administration
    Web Development
    WordPress
    HTML
    PHP
    CSS
  • $80 hourly
    🏆 Upwork Top Rated Plus Professional 🏆 1200+ Hours on Upwork I have 18 years in the IT industry in web hosting and managing Linux servers. My private consultation company actively manages hundreds of systems for over 50 companies. Bear in mind that if you hire me through Upwork, you are hiring *me*, not my company :) My primary area of expertise is setting up, managing, and securing Linux environments. I have extensive experience with Wordpress and most common CMS platforms, and I also work with planning large-scale cloud environments for production applications. Full resume and credentials can be provided upon request. * Please note that I do not work over screenshare * Areas of Knowledge: Security (See my resume for a list of certifications) VPC Solutions (AWS, GCP, DigitalOcean, Vultr, etc) Linux (CentOS/RHEL, Debian/Ubuntu) cPanel CloudLinux Python PHP Bash MySQL/MariaDB Puppet & Salt Fabric, Ansible Virtuozzo/OpenVZ, VMWare, Xen, VBox Networking (Cisco, Arista, Brocade) Git, Subversion
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    NIST Cybersecurity Framework
    Linux
    CentOS
    MySQL
    OpenVZ
    cPanel
    NGINX
    Apache HTTP Server
    Ubuntu
    LAMP Administration
    PCI DSS
    WordPress
    Python
    PHP
    Linux System Administration
  • $50 hourly
    I'm an Opensouce addict with good hands of experience in Linux, Cloud solutions, Web servers, Server Security, Server setup, Performance optimization, DNS management. Linux Accomplishment -AWS, Google Cloud, Linode, Digitialocean, godaddy. -Jenkins , Ansible, Cloudfront, Cloudflare etc - cPanel Wordpress Joomla Plesk Drectadmin Cloudlinux Kernelcare - Trouble shooting problems related to FTP, DNS, Mail servers, Restarting & configuring web services such as http, ftp..etc - Correcting Configuration files. - Tuning up Apache Web Server, MySQL. - Trouble shooting scripting issues. - Server Monitoring and load balancing. - Hacking Detection. - Handling different Web Hosting Control Panels. - Server Disk Space Management. - Memory Management. - Installing O.S. - Installing Control Panel, Control Panel Utilities - Server Security maintenance. - Designing the firewall for the servers. - Maintaining the backups of the data on server. - Server related issue regarding cgi, perl, php etc. - Upgrading and installing utilities on server. - Upgrading Plesk Control Panel, Cpanel etc - Migration of domains and databases - Managing websites on the servers. - DDOS prevention
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    Email Deliverability
    Apache Tomcat
    Scripting
    Linux System Administration
    Amazon EC2
    cPanel
    Plesk
    Virtual Private Server
    Apache Administration
    NGINX
    DNS
    Microsoft Azure
    CentOS
  • $50 hourly
    Are you seeking a dynamic software developer to elevate your projects to new heights? Your search ends here! With expertise in C/C++, JavaScript, Python, mobile development, and operating system development, I bring a fresh perspective and a passion for creating groundbreaking solutions. 💻 Desktop application 📱 Mobile app 🤖 Automation tools 🖥️ Custom operating system 🧠 Ai-powered solution 🔍 Security Audit and Vulnerability Assessment 📊 Compliance Management and Reporting -
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    Google Chrome Extension
    Natural Language Processing
    Swift
    Machine Learning
    C
    iOS Development
    Android App Development
    Linux System Administration
    Mobile App Development
    Computer Vision
    Desktop Application
    C++
    JavaScript
    Python
  • $190 hourly
    Based on my 30 years of experience in the field of IT, i am able to complete complex tasks of high difficulty. Working in international corporations allowed me to have a practice with productive and expensive systems. Contracts in the banking sector has taught confidentiality and responsibility and the importance of trust. My main qualification is in system administration. From the direct assembly of the server to the configuration of the operating system. Therefore i have expert knowledge of operation systems Windows\UNIX. Server OS: Microsoft Windows server, RedHat, Ubuntu, CentOS, PopOS, Debian, other Linux.. Cloud: Amazon Web Services AWS, Google cloud GCP, Oracle cloud, Microsoft Azure, IBM cloud.. Hosters: Digital Ocean, Hetzner.. Virtualization: Hyper-V, VMWare, VirtualBox, KVM, Proxmox.. Emergency problem resolving. Web, VPN, VPS, Cloud, Virtualization. Hardware troubleshoting and repair. Security networking. Infrastructure protection. BIOS\FW recovering, updating.
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    Postfix SMTP Server
    Microsoft Hyper-V Server
    System Configuration
    Virtualization
    Amazon EC2
    Data Recovery
    Disaster Recovery
    Virtual Private Server
    Hardware Troubleshooting
    Linux System Administration
    System Administration
    Server Virtualization
    Windows Server
  • $200 hourly
    𝗜'𝗺 𝗮𝗻 𝗲𝘅𝗽𝗲𝗿𝘁 𝘀𝗲𝗿𝘃𝗲𝗿 𝗮𝗱𝗺𝗶𝗻𝗶𝘀𝘁𝗿𝗮𝘁𝗼𝗿 & 𝗰𝗹𝗼𝘂𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 𝘄𝗶𝘁𝗵 𝗱𝗲𝗰𝗮𝗱𝗲𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲; 𝗵𝗲𝗿𝗲 𝘁𝗼 𝗵𝗲𝗹𝗽 𝗮𝗹𝗹𝗲𝘃𝗶𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗽𝗮𝗶𝗻 𝗽𝗼𝗶𝗻𝘁𝘀! 𝗜 𝗽𝗿𝗶𝗱𝗲 𝗺𝘆𝘀𝗲𝗹𝗳 𝗼𝗻 𝗽𝗿𝗼𝘃𝗶𝗱𝗶𝗻𝗴 𝘄𝗵𝗶𝘁𝗲-𝗴𝗹𝗼𝘃𝗲 𝗰𝗼𝗻𝗰𝗶𝗲𝗿𝗴𝗲-𝗹𝗲𝘃𝗲𝗹 𝘀𝘂𝗽𝗽𝗼𝗿𝘁. 𝗖𝗵𝗲𝗰𝗸 𝗼𝘂𝘁 𝗺𝘆 𝗿𝗲𝘃𝗶𝗲𝘄𝘀; 𝗺𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗿𝗮𝘃𝗲 𝗮𝗯𝗼𝘂𝘁 𝗺𝘆 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀. 𝗔𝗻𝗱 𝗜'𝗹𝗹 𝗯𝗲 𝘀𝘂𝗿𝗲 𝘆𝗼𝘂 𝗱𝗼 𝘁𝗼𝗼! 📞 Invite me to your Upwork job to book a free consultation call. I’m not your average tech. As a member of your team, I go above and beyond to provide you with an exceptional experience: ✅ Unparalleled reliability, patience, communication & professionalism ✅ Over a decade of server/system administration experience ✅ 100% track record with over 5,000 Upwork hours ✅ Exceptional problem-solving skills ✅ Very fast learner of new technologies Here are just a few of the technologies & service providers that I have extensive experience working with: 🛠 Amazon Web Services AWS (EC2, RDS, S3, Route53, Lamda, +) 🛠 Google Cloud Platform & Google Suite Administrator 🛠 Azure Cloud Architect & Server Administrator 🛠 Digital Ocean, Linode, Godaddy, Bluehost, Hostgator & many other hosts 🛠 cPanel/WHM, Plesk, Webmin, DirectAdmin, No Panel Servers 🛠 LAMP stack (Linux, Apache, MySQL, PHP) ⚡ I am fully insured with $1,000,000 in professional liability coverage. Anyone touching your critical servers should be! I specialize in server & application security, performance optimization, and on-demand support services. However, the list doesn’t end there. I’ve spent every working day of the past decade putting out fires. I’ve dealt with hacked servers & websites, mission-critical technical failures, application failures, and many other issues. It has been my utmost pleasure to take on the challenge of both resolving the technical issues while providing customer service with a smile during the most difficult of times. Being the best in class, excellence requires effort. Simply meeting expectations is not sufficient. Anticipating and satisfying one’s unknown needs is what makes for an incredible consultant. Beyond my technical skills, these are lessons the past decade has afforded me. ⭐⭐⭐⭐⭐ 𝟱-𝗦𝘁𝗮𝗿 𝗥𝗲𝘃𝗶𝗲𝘄𝘀 ❝ Steven is the best freelancer I have ever hired (and I have hired very many in various venues). Whipsmart, committed, and conscientious, I am utterly blown away by the quality of his work, and of his funny, personable manner. Highest possible recommendation. ❞ ❝ Steven is fantastic and goes above and beyond for his clients. We will 100% use him again and recommend him enthusiastically. THANK YOU! ❞ ❝ Steven is amazing. Hire him before he raises his rate. Super helpful and responsive. If you need help with anything related to servers, hosting, migration, performance optimization, WordPress support, security or overall optimization, look no further. ❞ ❝ Steven is a Gem. Simply put, Steven is the most knowledgeable IT person I have ever met. He helped me navigate through a very delicate situation that threatened to shut down my business completely. Without Steven, I probably would have had to close down my business and let my people go. He has a DEEP working knowledge of servers and server admin as well Wordpress and many other tools. He is EXTREMELY Professional and a great communicator. I will hire Steven again. ❞ I can support you with… + Linux & Windows Server Administration + Cloud Architecture, Performance & Cost Optimizations + Best practice performance optimization, server security & on-demand support. + Deployment of elastic cloud server clusters. + Managed migrations & system upgrades. + Mitigation of DDoS attacks & other malicious activity. + PCI Compliance & Resolution of failed vulnerability audits & scans. + Application Support - WordPress, Moodle, Magento, WHMCS, Drupal + Disaster Recovery - Backup plan creation & testing. + Additional Web Host Support - When your hosting provider drops the ball. + Mail Security & Authentication - SPF, DKIM, DMARC Support + DNS Management + Project Management + Customer Support + Marketing - PR, SEM (search engine marketing), Pay-Per-Click (PPC) on Google, Bing, Facebook, Twitter, and others. Extensive SEO work (on-page & off-page optimization). Re-targeting campaigns (Adroll, Perfect Audience, Google, Facebook, Youtube) Affiliate marketing via directly managed programs & third-party networks (CJ, Shareasale, ClickBank, Pepperjam, and others.) Mail marketing automation (Mailchimp, Infusionsoft, Marketo, Convertkit) and many CRM systems. + Development - PHP & Python. + Business Management - I've worn many other hats during the management of my business, including work in HR, support, sales, finance, marketing, PR, etc. I'd love to use this experience to help you out! Drop me a line to further discuss your needs. Thanks, 𝗦𝘁𝗲𝘃𝗲𝗻 𝗛. 𝗖𝗹𝗮𝗿𝗸𝗲 Clarkes.Team
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    Amazon Web Services
    Google Cloud Platform
    DigitalOcean
    Website Optimization
    PCI
    Keap Marketing
    Malware Removal
    PHP
    Cloudflare
    Vulnerability Assessment
    Mailchimp
    Linux System Administration
    Magento
    WordPress
    Workspace
  • $50 hourly
    Certified AWS Solution architect. I am having more than 12 years of experience in Installing, configuring and administrating various type of *nix servers using various opensource and closed source software for various customer requirement in the industry. My major expert areas in summary:- #Cloud environment :- Amazon Web Services, Google Cloud, DigitalOcean #Email deliverability: PowerMTA, Interspire, MailWizz, Amazon SES #Operating Systems :- Redhat, CentOS, Ubuntu, Dabian, Gentoo, HP-UX, Aix, SunOS,. Windows workstations and Servers 2000, 2003, 2008 R2, etc., #TCP/IP networking :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables #servers :- Sendmail, Postfix, Dovecot, Courier IMAP, Squirrelmail, Roundcube, BIND, Apache, VSFTPD, DHCPD, Squid, Samba #Monitoring and remote admin :- Log analizing with Sarg,Monitoring serves with Nagios and icinga ,Remote desktop with FreeNX, Remote Admin SSh/Telenet #Scripting :- Bash scripting, Perl, Python #Web and Database :- postgresql, MySQL, Oracle HTML #CMS: Drupal, Magento, Wordpress Thank you. Best Regards. Fabrizio
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    Docker
    Email Deliverability
    Network Administration
    Dovecot
    LAMP Administration
    Postfix SMTP Server
    Linux System Administration
    Unix Shell
    Mail Server Implementation
    Apache Administration
    Unix System Administration
    Server Virtualization
    Amazon Web Services
    NGINX
  • $10 hourly
    Hi I am Muhammad Jahanzaib. I want to gain employment where my education, work experience, skills and potentials, will be utilized and can be used effectively. I am self-driven, can do multitasking, detail-oriented and self-motivated individual. I have done many projects on youtube video marketing/social media marketing Amazon product promotion and Internet Research/data entry. I always prefer white hat method should be use to perform any work i will ensure everything about my work and provide my clients a best service. I am well versed in performing jobs in Given Areas. -Amazon and Shopify Dropshipping -Amazon and other Product Promotion -YOUTUBE VIDEO PROMOTION -WEBSITE MARKETING -EXPERT IN REDDIT (Social network) -DATA ENTRY -WEB RESEARCH -INTERNET RESEARCH -MS EXCEL -MS WORD -GOOGLE. Looking forward to work with you. Thanks for Visiting :)
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    Reddit Marketing
    Shopify
    Sales Promotion
    YouTube Marketing
    Data Entry
    Social Media Marketing
  • $40 hourly
    15 Years experience as Sr. Linux Admin, Unix Admin, System Admin, Storage Admin, Server Admin, Virtualization Expert as well as Database Admin Strong experience in installing, configuring, maintaining and troubleshooting anything on Linux/Unix/Windows, Raspberry * OS: Centos, RHEL, Ubuntu, Debian, Cloudlinux, Windows * System Backup and Recovery including System boot and kernel issues * Server Security and Server Hardening: FIREWALLD, UFW, IPTABLES, Selinux, TCP Wrappers, finding security vulnerabilities and resolving the issue using audit tools. * Server Management: User/Disk/File Management, Routing, Team Bonding, Linux Network, ISCSI, Multipath, Kannel, LVM, Partitions, RAID. * System Monitoring Tools: Whats Up Gold, Netflow, IFTOP, IPTRAF, Nagios, Zabbix, OSSEC * Data Center Management: Good experience in Management of Servers on Cisco, HP, IBM, Dell, Supermicro, etc. * Hardware and Software RAID * Network Sharing: NFS, VSFTPD, Samba, etc. * SAN/NAS Storage: HP, IBM, Dell, EMC, Netapp, Lenovo, etc. * Virtualization: Virtualizor, KVM, Xen, ESXI, Oracle VirtualBox, VMware, Vcenter Converter, etc. * Configuring and Managing LAMP/LEMP (linux, Apache, Nginx, Mysql and Php), SSL/HTTPS including Letsencrypt * cPanel/WHM, Webmin, Plesk, VirtualMin * Cloud: AWS, GCP, Digital Ocean, OVH, etc * Server Architecture: NTP, SSH, SQUID, DHCP, BIND, Postfix, Sendmail, VNC, Kannel, HA-Lizard, DRBD, XCD-NG, RSYNC, ISCSI, Multipath, etc. * Applications and Open Source Tools: WHMCS, Opencloud, Nextcloud, Zulip, OpenVPN, Polr, Odoo, Advandate, Openmeetings, TOR, Keycloak, Rocket chat, Opencanary, eSignForms, Apache Nifi * Linux Commands: Excellent Knowledge of Linux commands, Administration and Shell Scripting. * Streaming Solutions: Experience on Darwin Streaming Server, Wowza Streaming Engine, Xenon Live Encoder, Xenon Streaming Server, Xenon Streaming Mediator, Crypton Headends.
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    Plesk
    cPanel
    MySQL
    Virtual Private Server
    VMware ESX Server
    Linux System Administration
    Amazon EC2
    Unix System Administration
    Red Hat Enterprise Linux
    Unix Shell
    Virtualization
    SSL
    Linux
    Ubuntu
    CentOS
  • $35 hourly
    Greetings, I am experienced DevOps Engineer with a demonstrated history of working in the information technology and services industry. I am skilled in Unix/Linux, Cyber Security, Networking, Windows Servers, Cloud systems, CI/CD Pipelines, Kubernetes/Docker. I am strong engineering professional with a Master's degree focused in Information Technology from State Engineering University of Armenia. Skills: • Good experience with Linux and Windows servers • Good experience with Network technologies • Infrastructure and APM monitoring systems PRTG, ELK, Datadog, Newrelic, OpManager • Good experience with ESXi , Hyper V installation, configuration and maintenance • Microsoft services (Active Directory, DHCP, DNS, NPS, VPN, WSUS, etc) installation, configuration and maintenance • Good experience with Squid proxy and VPN services • Mail servers (Exchange, Postfix), DNS servers (BIND, Microsoft DNS) • Good experience with Kubernetes and Docker • Good experinece woth terraform and CloudFormation • Good experience with developing CI/CD pipelines GitLabCI, Azure DevOps, Bitbucket, GitHub Actions • Good experience with Azure AKS, Container Registry, SQL databases, App insight, App services, Key vaults, Storage accounts, Traffic manager • Good experience with AWS EC2, EKS, ECR, ECS, IAM, CloudFront, Load Balancer, S3, Elastic Beanstalk, Kops with AWS, WAF and Shield services, RDS, VPC, DocumentDB, AmazonMQ , ElasticCache • Good experience with reverse proxy servers (Nginx, Apache, Nginx Ingress on k8s) • Good experience with SQL/noSQL databases such as MySQL, MSSQL, Postgre, MongoDB • Experience with Redis cache, RabbitMQ, Elasticsearch • Experience with bash scripting • Good experience with server’s security • IPS/IDS systems (OSSEC/HIDS, Snort/NIDS) installation, configuration and maintenance
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    VMware ESX Server
    Puppet Administration
    Network Security
    Network Administration
    VPN
    Windows Server
    Web Service
    Linux System Administration
    SSH
    Database Administration
  • $45 hourly
    Have been working for 12 years in many roles which involves Linux systems administration in Cloud and traditional Datacenters, integration and troubleshooting in different type of industries. I have managed large number of bate-metals, VMs and wide range of applications/software, you name it!. AWS Certified Soltutions Architect, CCNA and Solaris 10 certified. Whats makes me different from others is my strong foundation of system administration and experience which results in quick troubleshooting and quick adoption of new technologies and protocols.
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    Email Deliverability
    Postfix SMTP Server
    MailWizz
    Mail Server Implementation
    Scripting
    FreeBSD
    AWS Server Migration
    VPN
    cPanel
    Linux System Administration
    Email Marketing
    SMTP
    Virtualization
    System Administration
    Perl
  • $125 hourly
    I have recently started the transition from full time employee to full time freelancer. I am looking for both challenging short term engagements and ongoing support contracts. Please read on to see what I have to offer. A full-range IT Systems and Network Engineer and Administrator. With 21+ years of experience in a wide range of skills with a focus on project design and implementation. Equally capable of working in Windows and UNIX environments. A broad base of general IT knowledge and a constant desire to learn and add skills have provided unique insight and abilities. Experience working with many vendors specializing in medical and enterprise systems. A broad range of experience and a lasting passion for technology combined with excellent troubleshooting and research skills makes for a valuable addition to any team. Project Highlights: Private Cloud deployment, IT systems upgrades, subject matter expert. Systems/Network Administrator for public health district hospital, responsible for setup, automation, and monitoring of private cloud. Managed the transition of legacy systems to new infrastructure. Deployed and administered monitoring and management systems. Handled special projects for the IT Director testing and deploying new systems or finding solutions to long standing issues. Overhauling of existing monitoring and asset tracking systems along with transitioning existing VM’s to new High Availability “A side/B side/C remote BDR” Data Center design dramatically improving systems reliability, while reducing manpower requirements. Consultant for public health district hospital to deploy a private cloud. Deploy and configure a private cloud based on Cisco UCS/EMC VNX/Hyper-V 2012 R2 & VMWare VSPEX reference platform for a regional hospital. Worked closely with existing employees and vendors to assist in bringing the project to a successful completion. Kept on indefinitely to work on improving the existing IT systems including SNMP monitoring (WUG), Syslog, Helpdesk, security, and maintenance automation. The resulting changes improved network reliability and reduced the time and effort required for employees to manage the systems Cloud-based application development, project manager and project technical lead. Systems Administrator/Engineer for deployment of Cloud-based applications and integration with mobile and local systems. Researched, selected and integrated multiple cloud based products to form a completely integrated IT services management solution based on Autotask, N-Able, QuickBooks, StoreGrid, and Channel Online for MSP provider. The final solution handles quoting, ticketing, purchasing, billing and time management. Worked with several consultants and technicians to complete integration and training of employees saving on valuable internal labor and reducing data entry errors. Replacement of existing PACS/RIS solution with RAMSoft PACS/RIS solution Project lead for the replacement of an existing PACS RIS solution from RAMSoft. Worked with incoming and outgoing vendors along with third party vendors and outside providers to facilitate the removal and replacement of existing leased hardware. Coordinated integration of hardware and software from 11 vendors. Completing the project with minimal impact on office operations on time and within budget. HIPAA meaningful use EMR and specialty procedure management systems upgrades/deployments. Project lead for the upgrade and deployment of multiple VMWare server solutions for specialty medical offices. Solutions utilized a variety of hardware and software including Windows Server 2008 R2, 2012, Small Business Server 2008, SQL 2008 (R2), Linux, VMWare ESXi, Cisco hardware, Qnap NAS, HP Servers, and StoreGrid. Supporting various medical software solutions including GE Centricity EMR and Practice Management, GMed GGastro, Maximeyes, and more. Determining what to replace and what to upgrade significantly reducing the overall project cost while providing a solution that met their needs. Using VMWare and robust redundant servers reduced costs by more than 30% while maintaining performance and reliability. Providing the office with a complete solution including email server and BDR solution for significantly less than competitor’s estimates. Identified key performance bottlenecks and applied solutions to complete a fast and reliable solution with complete local and offsite back and disaster recovery.
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    Amazon Web Services
    VPN
    Tech & IT
    VMware vSphere
    Email Deliverability
    Troubleshooting
    Cloud Computing
    Microsoft Windows PowerShell
    Microsoft Hyper-V Server
    Network Design
    Windows Administration
    Storage Area Network
    Network Administration
    Network Monitoring
    High Availability and Disaster Recovery
  • $40 hourly
    Twenty-five years of experience in embedded software. Smart Home Automation Consultant & Integrator POS software, EMV, PCI, ISO8583, ISO7816, DUKPT etc... RSA, ECC Linux, UNIX, C, C++ Pentester of POS hardware/software I like working in embedded hardware and creating new solutions, extending the base functionality of the original software/hardware Fuel Dispenser protocols Wayne, Gilbarco, Tokheim, Tatsuno, IFSF Tekelek ATG Fuel Tank Gauges Hydrogen/GPL dispensers POS apps in PAX, Ingenico, NEXGO and others Vending machines, MDB, Executive Extensive experience in debugging resource-constrained systems. RTOS, NuttX, FreeRTOS PLC Systems emulation Code porting ATtiny13, ATtiny45, ATtiny85 Pos terminal development MAX32660 MAX32520 ChipDNA STM32MP157C Kinetis Cypress PSOC6 ISO 11783 Emulator windows CE DOS Programming FreeRTOS, Gemalto, Nitrokey, Sentinel, HASP Raspberry CM4, CM3, Compute Module Jetson nano development and firmware OCPP Fire alarm systems conventional/addressable firmware Hitachi H8, TV Set Top Box USBTMC Hp-Ux, HpUX Allwinner Sunxi EVSE firmware RSL10 OSDP i.MX6, i.MX7, i.MX8 Lonworks echelon CORE3566, rockchip 3566 WaveShare ESP32-C6 ESP32-C3
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    FreeRTOS
    Linux
    Firmware Programming
    Driver Development
    Cryptography
    Reverse Engineering
    Raspberry Pi Firmware
    STM32
    Embedded C
    C++
    Embedded System
    Real-Time Operating System
    Firmware
    C
    Embedded Linux
  • $65 hourly
    • Container Orchestration: Docker, Kubernetes • Virtualization: KVM and Hyper-V • Infrastructure Monitoring: Nagios, PRTG, Munin, Checkmk, Grafana, Prometheus, Datadog, ELK, PMM • Cloud Engineering: AWS and GCP • Database Administration: MySQL, MariaDB, PostgreSQL high availability with HAProxy • In-memory Storage: Redis high availability with Sentinel and Twemproxy
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    HAProxy
    Ansible
    Puppet
    High Availability and Disaster Recovery
    Google Cloud Platform
    Amazon Web Services
    Kubernetes
    Docker
    Elasticsearch
    System Monitoring
    Virtualization
    Cloud Engineering
    Network Monitoring
    Database Administration
    Linux System Administration
  • $65 hourly
    AARON SUMMERS Independent Contractor April 2009 - Current • Provide remote Linux, networking, and application support for a variety of clients around the world. • Develop a custom SugarCRM, Xero Accounting, Concrete5 web store using PHP and MySQL. • Daily maintenance and security auditing of around 30 machines. • Build complex cloud based scalable solutions on Amazon EC2. • Scripting and automation of Linux based administration tasks using Perl and Bash. • Migration of web-servers from physical to cloud based solutions. • Provide end level support for certain clients. UNIX Engineer E Solutions Corporation March 2008 – April 2009 (1 year 2 months) • Responsible for supporting the operations of a Tier-1 colocation facility. Daily engineering and administration of OpenBSD, FreeBSD, Linux and Windows based operating environments. Identified and remedied a large number of network and host based security problems. Stabilized the bandwidth billing system for accuracy and provided assistance to the web development team. UNIX System Engineer Hilton Grand Vacations November 2006 – March 2008 (1 year 5 months) • Designed and built a custom Enterprises Data Ware House utilizing RedHat™ Enterprise Linux, IBM™ Information Server, and the Sun™ N1 toolkit. Back ported the RedHat™ clustering tools and GFS modules for RedHat™ Enterprise Linux 4. • Customized the operating environment for running the IBM™ Information Server 8 family of applications, consisting of IBM™ DB2 V 9.3, IBM WebSphere 6.0, IBM™ DataStage and IBM™ QualityStage. • Was the single onsite operations point for the HP-UX, Solaris, FreeBSD, MacOS X, and Linux machines. Designed and implemented the company’s external web presence using Solaris 10. Utilized zones, the ZFS file system, and hardware RAID on the T2000 platform. Wrote my own tools in Perl, C, and the Bourne shell. Debugged many complex operational problems. UNIX Administrator at Vortech, Inc. 2004 -2006 (2 years) • Responsible for the day to day operations of over 160 production servers. Maintained UNIX web, database and name servers based on FreeBSD 4.11 – FreeBSD 6.1 Built FreeBSD based servers for web hosting, backups, and network monitoring. Built Linux, Windows 2003, and Windows 2000 based servers for use in collocation. Provide phone and email support for web hosting and collocation customers. UNIX Administration and Technical Support at Magna Computer Corp September 2003 -May 2004 (9 months) • Built Linux and SCO OpenServer based servers. Provided support for custom software designed for the timeshare resort industry. Built programs and reports using technologies such as Apache, Perl, and XML. Extensive configuration and tuning of RedHat, Fedora, and SuSE Linux. UNIX System Administrator & Network Engineer at Independent Consultant November 2001 - July 2003 • Designed and implemented OpenBSD, Linux, and Windows 2000 Servers in a collocation environment. Extensive use of Apache, Perl, PHP, MySQL on UNIX. IIS Configuration experience, ASP, ActivePerl. Constructed web based application servers from scratch using previously mentioned operating systems as an install base. Console programming with C and ncurses. Experience with X11 API and GTK toolkit. Second Level Support at Jobwarehouse.com • May 2001 -September 2001 (5 months) • Supporting the primary website and data processing efforts. Networking and Integration at Magna Computer Corp September 1999 -June 2000 (10 months) • Develop TCP/IP based UNIX and Windows intranets. Provide technical support for SCO UNIX and Magnaware applications. Setup and maintain OpenBSD, FreeBSD, Linux, SCO UNIX and Windows based servers and workstations. Education Winter Park High School 1992 - 1996 – Gifted Program Valencia Community College 1996 – 1998 Contractor Recommendation "Aaron is a very good systems engineer for Linux, UNIX and Windows. He has an in depth understanding of system internals. I found him to be an honorable man that stands behind his word and keep on track of the project. He has always been friendly and a good attitude even when he is upset. He would make a good supervisor in any company." — Shelton R., Sr. IT Consultant / DB2 DBA Expert, Xtivia, worked directly with Aaron at HGVC
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    MySQL
    Linux System Administration
    Virtualization
    Network Security
    Iptables
    Unix Shell
    FreeBSD
    Snort
    Amazon EC2
    Linux
    System Monitoring
    CentOS
    Apache HTTP Server
    System Administration
  • $20 hourly
    -2 Years experience with Digital Marketing, Social Media Marketing and SEO Optimizations, on-page and off-page optimizations, link building, Blog content creation and SEO Audits. Experience using Rank Math, AI, Yoast, WordPress, Google Analytics, Google Ads. -5 years experience as a web automation, scraping, sysadmin, and networking consulting. Proactive SEO & WordPress content writer and digital marketing account executive. Organized and responsible, have worked with many renamed international clients as well as local clients as have always had optimized results with our projects no matter if it's SEO projects or working with code. 😉 I give the best of me in each project, with very good predisposition and attitude to always meet the objectives of the projects and responsibilities assigned to me.
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    Digital Marketing
    Local SEO
    Content SEO
    SEO Audit
    On-Page SEO
    Yoast SEO
    Keyword Research
    WordPress
    SEO Backlinking
    Blog Writing
    SEO Content
    SEO Writing
    SEO Keyword Research
    Web Scraping
    Python
  • $125 hourly
    I have been fortunate to teach for, or consult with, Netapp, Google, Apple, Oracle, Canonical, and Suse over the last decade after leaving Microsoft. While I do contribute a bit to open source projects in my free time, I've been mainly teaching folks how to architect their cloud environments, teaching them how to use ansible, or how kubernetes works. It's great fun, and good money, but I've been getting a bit bored not being as hands-on, so I thought I would give Upwork a try. If I reach out about working together, it's because there's something about your project that I think would be fun or interesting, and let's be honest: people do better work when they're enjoying the work they're doing. Credentials: ------------------------------------------------- * Google Cloud Certified Professional Cloud Architect | Credential ID Uj3vNA * Google Cloud Auhtorized Trainer | Credential ID 4291919 * AWS Certified Cloud Practitioner | Credential ID CDR6TCZ12MFEQ5SC * SUSE Certified Administrator (SCA) | Credential ID 10320195 * SUSE Certified Engineer (SCE) | Credential ID 10320195 * Netapp Certified Data Administrator (NCDA) | Credential ID C0YWCPD2D241YFY2 * Netapp Certified Instructor (NCI) | N.A. * Ubuntu Certified Instructor(UCI) | Credential ID 2 * Ubuntu Certified Profesional (UCP) | Credential ID LPI000174079 * LPIC-1 Linux Professional Institute (LPI) | Credential ID LPI000174079
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    Terraform
    Kubernetes
    AWS Server Migration
    DevOps
    Linux
    Amazon Web Services
    Data Scraping
    Google Cloud Platform
    MySQL
    Ansible
    PHP
    Python
    Scripting
    API
    Bash
  • $96 hourly
    8 years of Unix and network administration with Gentoo Linux, FreeBSD, OpenBSD. running scalable networks with DNS, setting up and maintaining web, mail, chat and file servers. Doing digital forensics in case of accidents, log analyzing, configuration checking as well as kernel hardening for information sensitive servers. Last 2 years doing Elixir and Erlang development for Scalable Infrastructure with Microservices as well as doing Automation using Shell and Ansible, configuring Cloud Infrastructures and Orchestration Systems and Container technologies such as Docker and FreeBSD Jails.
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    Security Assessment & Testing
    Information Security
    Computer Network
    Elixir
    FreeBSD
    Unix Shell
    DevOps
    System Administration
    Automation
    VPN
    Linux
  • $130 hourly
    With over 10 years of experience in cloud, infrastructure, and DevOps engineering, I’ve worked with companies ranging from startups to the Fortune 500, such as Blizzard Entertainment. I’ve helped clients accelerate their adoption into the cloud and simplify the provisioning of infrastructure with Infrastructure as Code (IaC) best practices. I’ve leveraged many tools to automate infrastructure configuration and deployment, including Ansible, Puppet, Terraform, Terragrunt, Packer, Jenkins, Docker, Kubernetes, Helm, and more. Additionally, I have designed and developed software solutions in Python and Go to solve many problems. Whether you require assistance with cloud architecting, IaC-driven infrastructure automation, CI/CD pipeline building, software engineering, or resolving issues through in-depth analysis, I've got you covered!
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    IT Infrastructure
    Infrastructure as Code
    Linux System Administration
    DevOps
    Puppet
    Docker
    Google Cloud Platform
    Linux
    DevOps Engineering
    Python
    Terraform
    Bash
  • $10 hourly
    2+ years of experience in GNU/Linux. I am able to do basic adminstration and troubleshooting in Linux and FreeBSD to configuring servers, containers, as well as write shell scripts. I am also familiar with SQL, Python and basic C.
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    Docker
    Git
    Docker Compose
    FreeBSD
    Server
    C
    Scripting
    Unix Shell
    Python
    Linux
    System Administration
  • $30 hourly
    Greetings! I am a highly skilled and results-driven System and Network Administrator with 15 years of experience in designing, implementing, and managing robust IT infrastructures. My expertise lies in system administration, network configuration, security, and troubleshooting. I thrive in dynamic environments and excel at optimizing IT systems for peak performance. Key Skills: 1. System Administration : Linux (Debian, Ubuntu, SLES, CentOS, Fedora, Linux From Scratch (LFS)), BSD (FreeBSD, NetBSD, OpenBSD, DragonflyBSD), Windows server ( Windows NT, 2003, 2008, 2012 (R2), 2019, 2022) 2.Network Management : Network Device (Cisco, HPE, Mikrotik, Juniper, Allied Telesync),Routing & Switching (RIP, OSPF, BGP, IRF, MPLS, Load balancing), VPN, Port forwarding,Wireless Network : Aruba, Cisco Meraki, Ruckus, Unifi, radius, controller, 802.1x 3.Security Implementation : Firewall (Fortigate, Sophos, Sonicwall, ufw, firewalld, PF, OpnSense,IPFW, Iptables, VPN, SNORT, Secui, IPS, IDS, OS Hardening (Linux, BSD, Windows) 4. Troubleshooting : Network, Server, Application, log analyzing 5.Server Configuration : Mail ( Sendmail, Postfix, Exim, Dovecot, Courier-IMAP, SquirrelMail, Roundcube, MS Exchange, OWA, Kaspersky Mail System Gateway (KMSG), Zimbra), DNS (BIND, PowerDNS, Windows DNS, WINS), Web Server (LAMP/XAMPP/Apache/Apache Tomcat, IIS, Nginx), Proxy (Squid, Haproxy), Database (MySQL,MariaDB, MongoDB MSSQL, Postgresql, SQLite) 6.Cloud Computing : Azure cloud, Amazon Web Services (AWS), Google Cloud Computing (GCP) Programming : -Python (intermediate) -Shell (intermediate) Certification: : -Cisco Certified Network Associate - CCNA -Berkeley System Distribution Associate - BSDA -AWS Certified Cloud Practitioner - AWS -Certified Linux Administrator - LPIC-2 -Fortinet NSE 4 version 6.2 -Microsoft Certified : Azure Security Engineer Associate, Cybersecurity Expert Architect, Azure Solutions Architect Expert, Azure Administrator Associate -Aruba Certified Mobility Professional - ACMP Why Choose Me: -Proven track record of success in system and network administration. -Strong analytical and problem-solving skills. -Exceptional communication and collaboration abilities. Let's Work Together: I am passionate about delivering high-quality solutions and would love to contribute to the success of your project. Please reach out to discuss how my skills and experience align with your needs.
    vsuc_fltilesrefresh_TrophyIcon OpenBSD
    Fortinet
    MySQL
    SMTP
    Linux System Administration
    Mail Server Implementation
    Apache Tomcat
    Cisco Certified Network Associate
    Windows Administration
    FreeBSD
    CentOS
    Windows Server
    Ubuntu
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