I have over 15 years of experience in technology. Anything from software development to servers, desktops or networks and everything in between. I have served in the United States Air Force and worked at government agencies as well as high tech companies across the globe. If it is configuring routers or switches. Working in the Cloud with Amazon, Rackspace Etc. Linux, Windows or anything in between then I am your man.
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Sr. Systems Administrator with broad experience in creating and managing highly available and highly transactional solutions using Linux and open source technologies. Use to wearing many technology hats, I thrive in an environment where figuring out complex problems and solutions is the norm. Specialties: server architecture, creating and managing highly available and highly transactional solutions, Linux, open source technologies. You can find me on LinkedIn here http://www.linkedin.com/in/dpeterson7 Services Offered: To provide outstanding service and support for organizations that might need: - Backup coverage for a lone system administrator. - Mentoring and training of on-site staff. - Augmentation of existing staff to provide necessary coverage or add specific skills. - Consultation of complex infrastructure changes or additions. I provide the following expertise: - Architecting, configuring, and managing of highly available and highly transactional solutions using Linux and open source technologies as well as cloud technologies like AWS. - Installing and managing the following operating systems: CentOS, RHEL, AIX, Ubuntu, Windows 2003 and 2008. - Cloud Hosting: AWS, Rackspace, Linode, DigitalOcean, and more. - Databases/NoSQL: MySQL, PostgreSQL, MongoDB, Riak, Redis, RethinkDB, ElasticSearch. - Web Servers: Nginx, Apache, lighttpd, IIS. - Applications: HAProxy, Varnish, RabbitMQ, Memcached, RedHat Clustering, heartbeat, DRBD, Memcached, Membase, MooseFS, Zabbix, Jboss, Request Tracker, iptables, APF, subversion, Confluence, WordPress, Magento, Splunk, syslog, syslog-ng, rsyslog, puppet, github, jenkins and more. - Protocols and Technologies: SMTP, SSH, IMAP, DNS, LDAP, DHCP, FTP(s), SSL, RSA, - Scripting: Linux bash shell, VBscript, PHP
I have +5 years of experience in developing web applications with different java technologies. i have the ability to develop an application from start up to business need. i am looking for part time job in web development, and i am available for 10- 20 hours per week.
- Installation, configuration and maintance of web platforms via ssh or Cpanel: *Wordpress *Zen Cart *PhpBB - Installation, configuration and customization of plugins for web platforms. - Custom design for web platforms; - ssh; - virtualization; - Remote assistance with Team Viewer, Remote Administrator 2.1, logmein, help.me; - Installation, maintance, troubleshooting and support of Windows XP / Vista / 7; - Software installation and setting up for Windows; - Mounting and installation of periphery devices; - Virus, troyan, spam, adware, malware removal; - Driver installation; - Installation and maintenance of Internet explorer, Mozila firefox, Google Chrome; - Email managing, maintance, settings;
One of TOP10 freelance system administrators in Russia: https://www.free-lance.ru/users/psaux/opinions/ Highly skilled system administration expert with more than 10 years of professional background. Experience in hosting companies, software development companies, government sector. Good in firewalls, IDSes, white hat and black hat security testing, DDOS protection. Providing 24x7 uptime service. My target is to achieve BEST PERFORMANCE of servers with a decent SECURITY level. My motto is: "best system administrator work is when you don't need him in the future".
My objective is to serve the technical needs of clients with high degree of professionalism and providing excellent technical facilitation. I have one and half decades of experience in the area of Infrastructure Management, System Administration and technical support. Acquired Certification from some of the major IT giants. Microsoft Microsoft Certified for the following titles.. Microsoft Certified Solutions Expert SharePoint 2013 Microsoft Certified Solutions Associate, Windows Server 2012 Microsoft Certified IT Professional (MCITP) Enterprise Administrator on Windows Server 2008 Microsoft Certified Solutions Associate on Windows Server 2008 Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008, Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008, Application Infrastructure, Configuration Microsoft Certified Systems Engineer on Windows Server 2003 Microsoft Certified Systems Administrator: Messaging on Microsoft Windows Server 2003 Microsoft Certified Systems Engineer on Microsoft Windows NT 4.0 Cisco Cisco Certified Network Associate Cisco ID: CSCO10849555 IBM IBM Certified Associate System Administrator Lotus Notes and Domino 7 Technical Skills Strong technical background with hands on experience in products like SharePoint Server, Exchange Server, Office 365, Hyper-V, Windows Active Directory, DNS, Windows Server Network O/S and Lotus Domino/Notes; Hands on experience in SharePoint server 2010/2013 deployment configuration and migration, managing and maintaining Web applications, Site collections and Service Applications. Monitoring and Administration of SharePoint servers in a farm. Installation and configuration of exchange server 2003/2007/2010/2013, Implementing High availability by configuring database availability group for mail box role servers and Network load balancing for client Access Server role servers; Migrating Exchange servers and IMAP servers to Exchange online (Office 365) using IMAP migration and cut over migration. Deploying Microsoft Dynamics CRM 2013 with claims based authentication and IFD. Deploying Microsoft Dynamics GP 2013 with Webclient. Hands on experience in Internet Information Server (IIS) managing, maintaining and troubleshooting; Hands on experience in installing new domain controllers & adding Domain controllers to the new domain and upgrading domains and forest to windows server 2003, 2008 and 2012 from previous Active directory installations; Synchronizing, Migrating and restructuring objects from one domain to another in the different forest by using Active Directory Migration tools (ADMT). Installing and configuring and troubleshooting issues on network operating system like Windows server 2003, 2008 & 2012, troubleshooting issues on windows desktop operating systems like Windows 7 & 8. Conversant with administering and troubleshooting Lotus Domino/Notes 7.0 and 8.5.2 servers and notes client; Monitoring Lotus Messaging product in cluster environment and having troubleshooting experience in a client with 70+ Domino servers and 30,000+ Notes users. Implementing Symantec Enterprise Vault 10.0 Server for file server archiving and IBM Storage 3512; Products/Technologies and skills SharePoint 2007(MOSS)/2010/2013, Exchange 2003/2007/2010/2013, Office 365, Microsoft Windows Active Directory 2000/2003/2008/2012, DNS, IIS 6/7.5, Hyper V 2008/2012, Microsoft SQL 2005/2008 R2, Dynamics CRM 2013, Dynamics GP 2013, Cisco Routers and Switches, Lotus Domino/Notes 5/6.5/7/8.5.2, Symantec Enterprise Vault 10.0, Windows XP/7/8, Red hat Linux EL 4/5/6,IBM Storage 3512
I have been working as an Linux administrator for about 7 years. I am a Redhat Certified Engineer ( on RHEL6), RHCSS, RHCVA and CCNA. I am quite efficient and well versed with the system administration,server administration, corporate training of Linux administration and security, troubleshooting and security implementation on Linux based systems . Area of my specialization are AWS, DNS, DHCP, PROXY, LAMP, NGINX, FTP, OpenStack TOMCAT, PUPPET, VIRTUALIZATION, VPS, NAGIOS, Shell Scripting and MAIL servers with cpanel/WHM, plesk, ISPconfig, webmin and virtualmin.
David H. Agency Contractor
I am a specialist in remote application delivery, VDI and cloud based computing. I have been working with Citrix products and some of their competing products and add-ons, from back in the Winframe NT4 Terminal server days, all the way up to the current Xenapp 6.5. I work full time for a major NYC hospital on the Citrix Engineering team, responsible for 200 + servers supporting a 24/7 mission critical environment. I have engineered delivering hundreds of applications to users on every type of device out there (PC, Macs, Thin clients, iPads, Androids, HTML5 browsers, etc.). I have a legacy MCSE for Windows 2000, and years of experience with Windows Server 2003, 2008, and 2008 R2. I have extensive experience with Active Directory group policies, Proxy servers, Web Servers, and Logon scripts using WSH, CMD files, and PowerShell. I have recent training in Microsoft App-V, Citrix Xenserver, Amazon Web Services, VMWare vSphere 5, OpenVPN and VDI-in-a-Box. I have recent part-time contracting experience providing Windows Server 2008 R2 IaaS servers in the cloud with Amazon AWS, OpenVPN, and a proof of concept project to provide SaaS using Xenapp and VDI for end users of a small business, including a custom web portal for them to reach their desktop from anywhere.