[UPDATE January 2015] I am available for limited engagements in architect and advisory roles. I am an accomplished Systems Administrator, Solutions Architect and Startup Advisor with over 10 years professional experience building infrastructure and platforms for startups, small organizations, the enterprise data center and the cloud. My primary specialties are creating DevOps tool chains, building infrastructure for SaaS, PaaS, IaaS and all things open source. I began my career as a traditional software developer but saw my interests shift towards the intersection of systems and development - now what people refer to as DevOps. My knowledge of programming languages and systems administration allows me to integrate and automate much of my work. Here is a brief sampling of skills and technologies I am currently (2015) working with: Linux - CentOS, Ubuntu, Debian, Amazon Datastores - MySQL, PostgreSQL, Redis, MongoDB, ElasticSearch Monitoring - Monit, Sensu, Graphite, Supervisord, ELK (LogStash) Management - Chef, Ansible, Docker, Etcd Platforms - AWS, Rackspace, Google, Linode, DigitalOcean, Heroku Frameworks - Rails, Pyramid Lanaguages - Ruby, Python, PHP, Go SCM - Git Although not as current I also have experience with OS - RHEL, FreeBSD, Gentoo, NetBSD, Windows Server, HP/UX, AIX Datastores - Memcached Management - Puppet Monitoring - Nagios, Munin, Cacti, RunIt Platforms - Joyent, Azure, EngineYard, Deis Languages - Perl, CoffeeScript, Java, Lua Frameworks - CakePHP, Express, Django, Sinatra VoIP - Call Manager, Asterisk Virtualizatoin - VMware ESx/vSphere, Parallels, Plesk SCM - SVN, Mercurial
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I enjoy solving challenging problems and utilizing technology to creatively design efficient, cost-effective solutions to meet business needs. Current Certifications: CISSP, CCNP, Net+/Sec+, MCP Cloud (AWS/Rackspace), Linux, Windows, VMware HA/vMotion/vCenter Open Source Software: Apache, nginx, Redis, elasticsearch, Zabbix, Logstash Information Security Auditing, Configuration, Policy Networking: Visio Diagrams, IPSEC/SSL VPNs, OSPF/EIGRP/BGP, Adaptive Security Appliances (ASAs), Wireless Controllers, F5 LTM, WiFi (RF Design) Information Security: Visio Diagrams (architecture), PCI DSS compliance, Splunk (syslog) Vulnerability Audit and Penetration Testing: Metasploit, Nexpose, Nessus, Vulnerability Reporting, Patch Management Development: Ruby/Rails, Git, Python, PHP, Perl, PowerShell, Bash, .NET
Nitin S. Agency Contractor
Melbourne based System Administrator with expertise in Linux Server optimization, security and service deployment on VPS/Physical, Cloud Platforms(AWS,Rackspace). I believe in getting the job done with the best possible quality. Period. Clear timely communication with the clients and their team is always my priority. I have been working with all the major providers: Rackspace, Amazon, Softlayer, Godaddy, Hostgator, Bluehost, Linode, DreamHost, Mediatemple, Lunarpages. Expertise in Linux Administration is as follows (but not limted to) Server Distributions: RedHat, Centos, Fedora, Debian, Ubuntu, Gentoo, Suse, Mandriva, Opensuse, Knoppix, Slackware. Web servers: Apache, Lighttpd, Nginx, Tomcat File servers: Proftpd, Pureftpd, Vsftpd, Sftpd, TFTP, NFS, Samba DNS servers: Bind9, MyDNS, NSD Mail servers: Postfix(TLS,SASL), Exim, Sendmail, Qmail, Dovecot, Courier. Logging services: Syslog, Rsyslog, Syslog-ng Proxy servers: Squid(forward and reverse proxy), nginx, pound, lighttpd. Firewalls: Iptable scripts and Advance Policies Firewall with bruteforce detection. Firewall configuration: NAT, IP Masquerade Jabber servers: Openfire, Ejabberd, Djabberd Database servers: MySQL, Postgresql Backup: Bacula, bash scripts. VPN: PPTP Virtualisation: Openvz/Virtuozzo, Xen, Qemu, KVM, VMware Server, Parallels Workstation, Virtualbox headless, HyperVM. Monitoring: Nagios, munin, zabbix, zenoss Automation: Puppet(fan), custom bash scripts. Revision control: Git(fan), Subversion Package management: yum, rpm, dpkg, aptitude, apt-get, emerge Security: Nessus, John The Ripper, Tiger, PGP, GPG, nmap, Openvas, Snort, Ettercap, arpwatch, SSH, SSL, TLS, TCP Wrappers, Ethereal, dsniff, tcpdump, portsentry, rkhunter, chkrootkit, clamav, SPF, Spamassassin, domain keys. Cloud computing: Amazon (EC2, EBS, S3, CloudWatch), Rackspace services. Assessment tools: sar, vmstat, iostat, mpstat, netstat, iptraf, iftop, lsof, ntop, serverstats Misc services: NTP, Cups, DHCP, Dnsmasq
As an experienced sysAdmin, i've managed several servers around the world, from USA to Hong Kong, from Spain to Brazil. During this years, i've managed to expand my knowledge to several areas of the business, mainly virtualized environments (vmWare, Xen, openvz) and cloud environments ( Linode, Rackspace, Amazon & Digital Ocean). Also, i've been working as a coder on complex backend implementations. I am the typical sysadmin that enjoy to read logs, check uptime at 4.AM and smile when server load is <1.
WHY WILL YOU HIRE ME ? - --- TOP 1% OF SUCCESSFUL oDesk FREELANCERS http://postimg.org/image/3li7gl9z1/ --- MORE THAN TOTAL 10,000 OF oDesk WORKING HOURS AND STILL COUNTING ! --- MEMBER OF PRESTIGIOUS oDesk VERIFIED WEB DEVELOPERS GROUP. Possible Expert and Business Savvy Solution In Cost Effective And Timely Manner To Serve Best In Industry With Satisfaction Guaranteed. I not only deliver but also make your business profitable. [RHCE, CCNA, RHCVA, RHCSS Certified] Committed to work on any challenging project likewise Enterprise Level Unix, Linux, Windows Server And Network Administration, AWS/EC2,Rackspace,Linode,Cloud Architecture,Virtualization, Monitoring and Maintenance, Web design and development, e-Commerce development, SEO, SEM, ORM, internet marketing, graphics and logo designing, animation, online presentation and publication, online promotion and branding with 100% dedication and satisfaction guaranteed. Serving on these field Successfully with 8 years of versatile experience. Intend to work with the employer on the basis of long term relationship until and unless 100% satisfaction would be achieved.
I am a native-English-speaking Canadian living in China, with a deep understanding of the Linux/LAMP ecosystem, and dedicated to getting the job done. Particularly strong with Amazon AWS, Django / Mezzanine, Apache/MySQL, network API communications, and back-end web application development. I usually have time to add small new projects, and software development projects. Ask me about big projects, my workload varies! http://expat-it.net/ http://blog.expat-it.net/
I'm Linux Security Administrator & Web Application Penetration Tester with 8 years of experience in the IT field. I'm CISSP (ID# 478556) and OWASP member. My expertise ranges from designing, building secure & robust systems to analysis of subtle software security flaws. I can help you with: - thoroughly security testing your web application (black-box and/or white-box tests) and helping in mitigating detected vulnerabilities - analyzing and assessing vulnerabilities in your application's underlying IT infrastructure - security hardening Linux/UNIX servers/clusters - recommending solutions and best practices on how to design and maintain secure AWS infrastructures - responding to security incident in Linux/UNIX environment, helping in recovery process (rootkit detection, malware removal, etc.)
I respect your business, NO downtimes NO mistakes! If you want to save time and money feel free to get in touch. Operating Systems: Ubuntu, Debian, CentOS, Gentoo, CloudLinux, FreeBSD OpenBSD, NetBSD and FreeBSD. Cloud Platforms: - Amazon EC2 - Rackspace Cloud Hosting: - DigitalOcean - Linode Web servers: - NginX - Apache Database Servers: - Mysql - Percona - MariaDB - PostgreSQL Monitoring Systems: - Zabbix - Nagios - Cacti Virtualization: - Proxmox - OpenVZ - KVM - Xen - SolusVM Mail Servers: - Postfix - Exim - Dovecot Security: - Firewall - APF, BFD (brute force detection script) - ClamAV - Malware detection Backup: - Amazon S3 - Xtrabackup - Mysql replication Configuration management utilities: - Puppet - Chef Stack installation and optimization: - Wordpress powered by Linux, NginX, Mysql, Memcached - Magento powered by Linux, Varnish, NginX, Mysql, Memcached - PHP applications on LEMP - Python applications with NginX + uWSGI Other services: Load balancing, Optimization and troubleshooting, php-fpm, apc, CDN, Cloudflare, DDoS protection, bash, python, proxy configuration, svn, git. Any other Unix staff.
Having more than 5 years of experience in Linux/Unix IT world, from installation, configuration of OS, packages, designing High Available (HA) and Salable environments. Worked for various clients and domains - IT Telecom, E-commerce , Real-estate and Mobile clients. More than 3 years of experience in Amazon Web Services ( AWS ), EC2, RDS, VPC, S3, etc. Designed and implemented HA and Auto Salable environments. Worked on Hardening security, Cost optimization and Performance Optimization. Load Balancing, Backup and Disaster Recovery ( DR ) environments. Managed and monitored 1000+ VMs for 50+ clients using various tools and scripts. Automated environment backups, deployments, scaling using various tools, scripts and REST API command line tools. Built tools to Vertical and Horizontal scale in and out. Regular security audits, cost optimization, backup audits. I am always look for new challenges.