Mircea Dumitrescu's Email Addresses & Phone Numbers

A highly experienced IT professional with more than 15 years of experience. I held titles like Infrastructure, Storage, and Network Architect, Head of System Engineering and IT Manager and CTO. I enjoy varied roles where I can use most of my technical skills as well as my team leadership, mentoring and project management skills. I have also...

A highly experienced IT professional with more than 15 years of experience. I held titles like Infrastructure, Storage, and Network Architect, Head of System Engineering and IT Manager and CTO. I enjoy varied roles where I can use most of my technical skills as well as my team leadership, mentoring and project management skills. I have also built teams from scratch, hired and managed teams of programmers, including performance and project management to targets. I have competencies in multiple operating systems (WINDOWS, *BSD, LINUX, UNIX, OSX) and various appliances (CISCO, JUNIPER, DSLAMs, other routers, switches, load balancers). I built robust, scalable systems and clusters and worked with high bandwidth and high CPU consuming applications. I have experience of managing more than 100.000 domains, servers with more than 5000 connections per second and have years of experience in migrating complete environments (physical/virtual servers, databases, web apps, emails, exchange servers). I am an expert in deploying and optimising PHP, NODEJS and others with support for POSTGRESQL/MYSQL/MONGODB, APACHE/LIGHTTPD/NGINX on LINUX/BSD systems. Specialties: Linux/Unix/BSD systems - all flavours Low level kernel optimisation PostgreSQL optimisation and architecture Mysql optimisation / clustering Server architecture Network architecture Security - multiple flavours of VPNs Email servers, WEB Servers, CDNs, SANs, VMWARE, CISCO Scripting and programming in multiple languages PHP, JS, BASH, C, C++Founder (Director) @ From April 2015 to Present (9 months) London, United KingdomTech Founder @ From March 2015 to September 2015 (7 months) London, United KingdomDeputy CTO @ From November 2011 to October 2014 (3 years) LAMP Environment Architect @ Redesigning Production Infrastructure and Optimising LAMP Environment From July 2011 to September 2011 (3 months) London, United KingdomEnterprise Security Architect @ Developed a security framework spawning 11 countries form offices, VPNs and internal systems to production/live systems From November 2010 to July 2011 (9 months) London, United KingdomEnterprise Production Architect @ In charge of all live system in all countries. From April 2010 to November 2010 (8 months) London, United KingdomOwner @ Work here also includes open source projects like: glflow on freshmeat and a RTMP Server in C++ (rtmpd.com) I offered consulting for Servers Maintenance/Upgrade/Installations, Exchange,Qmail,Postfix, DjbDNS, Apache,IIS, ISA Server and a lot of other servers with a lot of different technologies. Also developed www.freesoft.com From December 2008 to October 2010 (1 year 11 months) Head of System Engineering @ From October 2008 to April 2010 (1 year 7 months) Senior System Engineer @ From 2008 to April 2010 (2 years) System Engineer, Network Designer and IT Manger @ Security, Network Administration, Windows 2000 Domain Forest Implementation, Network design. I made a beautiful mixture of Windows and Linux. From January 2000 to October 2008 (8 years 10 months) Senior System Architect and IT Manager @ We provided consultancy for the implementation on BS7799 / ISO 17799 Security Standard to Netmaster Communications (a company I worked for in the past). We made software for assurance brokerage companies, mainly ERP. We provided consulting for the following projects: http://www.livechat.eu, worked with another team and created a fully functional alternative to Adobe Flash Communication Server, about 100 times faster and written in C++ under FreeBSD. We created the site http://www.escortsonline.com. We created a domain parking system with accounting, tariff schemes, multiple categories etc. A very complex system on which domains can be parked. We implemented yahoo feeds through XML/XSLT transformations. This was an outsource project for Eurodns.com. From 2006 to 2008 (2 years) System Administrator @ System Administrator. (Linux) Taking care of 800 computers network. MAC based DHCP, database, security, Linux, FreeBSD, Radio, Mails, web Hosting, Direct Connect, Games Servers and many many more. From September 2001 to June 2005 (3 years 10 months) Engineer's degree, Computer Science @ Universitatea „Politehnica” din București From 2000 to 2005 Colegiul National Alexandru Dimitrie Ghica From 1996 to 2000 Mircea Dumitrescu is skilled in: Security, Technical Hiring, Operations Management, Team Leadership, Project Management, IT Management, Information Security Management, Start-up Environment, ITIL, Start-up Consulting, Team Management, Server Architecture, Firewalls, Software Design, VPN