5+ years experience of Linux systems and web/database servers administration. 4+ years experience of support/maintenance of Amazon Web Services. 5+ years experience of technical support, web applications deployment. 10+ years experience with web development and maintenance with various technologies: J2EE, JSP, ASP, PHP, MVC, Javascript, Ajax, jQuery, DHTML, HTML, CSS, XML/JSON. 10+ years experience with relational databases and SQL. KEY SKILLS - Systems administration: Linux, web servers (Apache, Tomcat, IIS), database servers (MySQL , MS SQL Server, PostgreSQL), Amazon Web Services/Rackspace/FireHost, security, firewall. - RDBMS (MySQL, MS SQL Server, PostgreSQL): database structures analysis and design; optimization; writing SQL queries, stored procedures, functions. - Web-based applications development: Java/J2EE (Tapestry5) on Tomcat/Jetty, LAMP, Javascript, AJAX, Prototype/jQuery, DHTML, HTML, CSS, XML/JSON. - Installing, configuring, and maintaining staging and production servers for web-based applications. - Good troubleshooting/problem solving on Linux, database, web-based applications. - Optimization applications' processes and database performance. OTHER SKILLS - Systems administration: Windows server, DHCP, DNS, SSH, FTP, SSL/HTTPS, Puppet/Ansible config management systems, Nagios/Monit monitoring, load balancers, Jenkins, VPN, Zimbra, DenyHosts/Fail2ban, Cron, Asterisk VOIP, VirtualBox/Vagrant, Daisy Wiki, XHProf, Bug Mantis, JMeter... - Programming languages: Java (5+ years), PHP (3+ years), Javascript (10+ years), VBS/classic ASP (3+ years), VB/VBA (2+ years), Bash scripting (2+ years), Objective C (5+ months), C# (3+ months), Ruby/Rails, Python, Perl, C. - Maven/Ant build. - JSP, Servlet, Android SDK/Google MAP API/Web services. - Revision control: CVS, SVN, GIT. - Agile development method (Scrum). - Telecommuting work with virtual teams.

Freelance IT Consultant @ - Systems admin: Linux (CentOS, Ubuntu), Windows, cloud (AWS, Rackspace), firewalls, etc. - DevOps: build, release, automate deployment (Puppet, Ansible, Jenkins CI) - Web application development: Java/J2EE, LAMP From May 2015 to Present (8 months) Software Developer/System Admin @ - Setup and administrate systems: Linux servers, Amazon Web Services, web servers, database servers, security and firewall... - Build, deploy and troubleshoot web-based applications on the staging and live servers. - Develop, test and maintain business web-based applications in J2EE (Tapestry5), LAMP (Linux, Apache, MySQL, PHP), PostgreSQL. - Develop Android apps. - Debug and optimize applications and databases performance. - On-going technical support. From February 2009 to Present (6 years 11 months)

Luan Nguyen is skilled in: Apache, MySQL, PostgreSQL, Web Services, Java, JavaScript, CSS, Bash, Maven, Ant, Linux, CentOS, Amazon Web Services (AWS), Rackspace Cloud, Tomcat