Systems and Services Engineer, with 12+ years of working experience. Interested in researching, administrating, debugging, tuning and developing platforms running on UNIX like Operating Systems. Able to troubleshoot, identify and solve problems in software, network or kernel layer. Always willing to learn and experiment new technologies for creating high availliability platforms, that could described as "state of the art" or "cutting edge" technology. Specialties: • Unix Like Operating Systems Specialist (Solaris / Linux ). • TCP/IP Network technology • Very deep level of knowledge on Machines hardware and OS Kernels internals. • Troubleshoot/Tune/Debug; System Services, Operating Systems • Mail Services Expert, Qmail-Ldap Specialist. • Network: Cacti/MRTG, Nagios, Cisco Netflow • Databases: PostgreSQL / MySQL / Oracle / LDAP. • Programming: Perl, Ansi C, bash, awk, sed, php etc • Internet Services: mail, http, radius, ftp, ssh, irc etc.
haproxy Job Cost Overview
Typical total cost of oDesk haproxy projects based on completed and fixed-price jobs.
oDesk haproxy Jobs Completed Quarterly
On average, 0 haproxy projects are completed every quarter on oDesk.
Time to Complete oDesk haproxy Jobs
Time needed to complete a haproxy project on oDesk.
Average haproxy Freelancer Feedback Score
haproxy oDesk freelancers typically receive a client rating of 4.91.
For the past couple of years I have been working mostly in cloud-computing, both with government funded non-profits and as an independent consultant. My consulting work consists mostly of helping companies build their apps to be cloud ready, as well as migrating apps into cloud based services, and managing those apps once they are deployed to the cloud. I have lots of experience with AWS and RackSpace and other OpenStack clouds. Much of my work last year was actually implementing and maintaining cloud provider infrastructure based on OpenStack for various government projects. That experience led me to build my own public cloud based on OpenStack with a storage back end based on a ceph cluster for instance, object and volume storage which I am beginning to sell to my consulting clients in addition to other services I provide for them. Prior to my cloud experience I worked as an IT Director and Senior Systems Admin in conventional IT shops and have plenty of experience in datacenter operations, VMWare based virtualization, switching and routing, full ISP operations including large scale deployments in VoIP based on open source technologies. I would love to have an opportunity to meet with you and discuss how we may be able to work together.
Since 1998 i administer linux server and the associated router and switches (JunOS) for small and mid-sized companies, especially webserver like Apache, Mysql-server, mailserver (sendmail, postfix, dovecot etc), HA-Cluster and loadbalancer with main focus on availability and security. I "speak" Perl, PHP, bash and smilar fluent.
Have more then then years experience. Worked with various open source technologies. Maintain web and database clusters for heavily utilized sites. https://www.linkedin.com/profile/view?id=143797628
Experienced cloud architect specialised in designing and implementing large-scale, resilient (web-)infrastructures across public and private clouds (Openstack+AWS). Deep knowledge of many open and proprietary technologies, from load balancing to databases, from networking (SDN) to scale-out storage (Ceph, Gluster, NFS, Samba). Security-minded, strategic thinker and great collaborator for all sort of projects; skilled in Agile and Kanban techniques to lead teams of engineers and developers (he pioneered DevOps in The Netherlands). Configuration management (Puppet, Ansible) is a second nature; writing (automated) testing for the infrastructure code is my preferred pastime. I'm involved professionally in many cloud and storage project across many verticals and industries; I'm seeking worldwide collaboration with like-minded organisations to expand my horizons and create more value for my clients.
• Experience in high-load systems. • Cluster solutions, experience in VMware (vSphere, vCenter, ESX). • Experience in OS: Linux (RedHat/CentOS/Oracle Linux/Ubuntu), FreeBSD, Mac OS, Cisco IOS, Windows. • Understanding the principles of basic network services (DNS, DHCP, HTTP, IMAP, POP, SMTP, SMPP), OSI, TCP/IP. • Administration and configuration: apache, nginx, haproxy, memcached, twemcache, dns, ftp, nat, dhcp, samba, ipfw, squid, sendmail, exim, dovecot, vpn, ntp, ssh, openvpn, ipsec, nagios, zabbix, sphinx, other Unix systems. • Development: PHP, Perl, shell (bash, sh). Databases: MySQL, PostgreSQL. • Web-design and administration of Web-servers. • CMS experience: Bitreex, Drupal, Joomla. • Excellent knowledge of basic computer platforms: PC, Apple, server equipment. • Excellent knowledge of Unix - installation, settings, administration. Experience in CISCO. • SMS experience, protocol SMPP. • Experience in PBX Avaya, Panasonic, Asterisk, VoIP, AddPac.
Technical Experience Operating Systems: Linux - CentOS, Debian, Ubuntu, Fedora Windows Desktop - 98, 2000, XP, NT, 7, 8 Windows Server - 2003, 2007, SBS, Exchange, Active Directory Hardware: All forms of x86 hardware, including laptops, workstations, and servers (32 and 64 bit architectures) Large server installations, racking, power management, and cooling Infrastructure design and implementation, including cloud platforms Software: Web - Apache HTTP / HTTPS, Nginx, IIS, Varnish Database - Apache Cassandra, MySQL, MariaDB, Couchbase, Memcache Mail - SMTP, Postfix, Dovecot, POP, IMAP Network - Bind, pdns, iptables, HAProxy, Pound Orchestration - SaltStack, Puppet Networking: Understanding of TCP/IP, UDP, ICMP, DHCP, IPv4 Clustering & high availability load balancing LAN/WAN, VPN, VLAN, ACL & Firewalls Most conventional hubs, routers, and switches (DrayTek, LinkSys, Netgear, D-Link) Security & Monitoring: Nagios, NRPE, opsview Unix security & lockdown OS hardening
Over 8 years’ experience of maintenance, deployment and support of networks, networking equipment and servers. Knowledge of routing protocols (BGP, OSPF), loop prevention protocols (STP family), networking protocols (IP stack, OSI model), monitoring software setup and maintenance. Networking hardware knowledge includes but not limited to following vendors equipment: Juniper, CISCO, Alcatel 7750, Alvarion WiMax BS/SU, switches and routers including Core level equipment. Knowledge and experience to setup and maintenance full featured servers primarily with Linux OS.
I am an experienced Systems Administrator, Python/Perl Developer, as well a Project Manager, with over five years of experience designing and implementing enterprise systems, and managing teams in doing so. I have extensive experiance with the following technologies: Nginx Python Varnish HAproxy Hadoop cPanel Amazon Web Services Perl MongoDB PHP-FPM Bash Node.js Salt Stack Bind WordPress LAMP Plesk Perl Some of the more interesting projects I have worked on include building a machine learning system in python to read postcards for customer contact information for a sales lead generation firm, and designing the highly available, load balanced, system used by ipadhelp.com