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Adrian Sandu

Current city: Bucharest

E-Mail: adrian.sandu@asandu.eu

Web address: asandu.eu serverstuff.info

Pub SSH Key: id_rsa.pub

Objective

I want to be on top of the technology domain, always taking new challenges.

  • Targeted cities   Bucharest
  • Targeted Domains   IT / Telecom - IT Hardware, Software / Programming
  • Willing to travel/relocate   Yes

Experience

Site Reliability Engineer, TechOps, Adobe Systems Romania SRL, Bucharest

  • April 2015 - present  (7 years 10 months)
  • IT Hardware, Software

Implementing and maintaining various linux services and servers for the Adobe Pass and Adobe Concurrency Monitoring
Click here for more details


arrowansible (automating push deployment for various states)
arrowpuppet ( automating various package and service configuration )
arrowdrbd ( HA block device replication )
arrowgrafana ( graphical interface for status )
arrowtcollector ( various scripts to monitor EVERYTHING in a machine and its processes )

Systems Administrator, S.C. MuseGlobal S.A., Craiova

  • January 2017 - present  (6 years)
  • IT Hardware, Software

Maintaining linux services and servers for the company.
Click here for more details


arrowautomatic ubuntu deployments
arrowbash scripting various migrations
arrowvirtualization of physical servers
arrowmail, vpn and ssl web servers

Systems Administrator, BITDEFENDER SRL, Bucharest

  • November 2014 - March 2015 (5 months)
  • IT Hardware, Software

Implementing and maintaining various linux services and servers for internal servers and services for an internal research and development department..
Click here for more details


arrowScripting - Various scripts to automate simple tasks (like bringing tunnels up and down and setting up services for them
arrowNetworking - Set up tunnels via openvpn with some firewalls
arrowDeployment - Setting up centos and ubuntu machines with automated setup depending on the service

IT Systems Administrator, BITDEFENDER SRL, Bucharest

  • April 2013 - October 2014 (1 year, 6 months)
  • IT Hardware, Software / Programming, Support / Helpdesk

Implementing and maintaining various linux services and servers for internal and external users.
Click here for more details


I implemented and maintained all linux internal servers and services as an IT System Administrator at Bitdefender in Bucharest HQ.
I participated in taking decisions for all linux related machines/projects. Also, I manage the hardware part ( analysing the requirements, upgrading whatever is needed.. (CPU/RAM/DISK) cleaning , installing ESX and integrating in VCenter ) including the management part ( IPMI/KVM configuration )

Some of the products used are the following:
arrowDNS ( with dynamic updates, DNSSEC)
arrowDHCP integrated with DNS ( and tftp for PXE )
arrowWeb Servers ( Apache (with low level auth via mod_lua), nginx with php-fpm )
arrowSQL ( mysql/mariadb in a master/slave environment )
arrowMail ( postfix + dovecot with virtual users for different internal and external users and mailing lists including DKIM signing )
arrow(T)FTP (proftpd, vsftpd with virtual users in a chrooted environment )
arrowAuthentication ( slapd with multiple domains )
arrowProxy ( squid with caching and various types of auth like kerberos, basic, ntlm )
arrowStorage ( Samba integrated with ActiveDirectory auth )
arrowLVM/Raid ( hardware and software(md), iscsi, nfs, zfs )
arrowFirewall ( iptables mostly with ipset and some pfsense )
arrowRouting ( VLANs, PVLANs, source based packet routing and DMZ seggregation )
arrowBalancing ( via modules or hardware devices for web/sql )
arrowVoIP ( Asterisk with SQL and IVR in AEL )
arrowLogging ( Centralised Rsyslog with SQL Backend )
arrowMonitoring ( SNMP traps )
arrowProtection ( Fail2ban , SELinux and custom rules for hardened security )
arrowBackup ( Bacula or inhouse scripting )
arrowHoneypots ( with SNORT as IPS/IDS with custom rules for various traffic )
arrowChat ( IRC and Jabber ( OpenFire ) with various bots for services status and updates )
arrowAudio ( Shoutcast web radio service with various pulseaudio clients routing )
arrowVirtualisation ( VMWare ESX )
arrowMonitoring ( Zabbix )


I've also done PHP/Bash scripting and web interfaces for DHCP/DNS selfservice.
Various penetration testing, security, performante and implementations for web/java/linux internal products.
Used and managed Amazon's cloud services ( for virtual machines, dns, storage, load balancing, networking ).
Made custom scripts to filter different AS ( iptables + ipset for DMZ ).
Implemented Atlassian systems and services ( Confluence,Jira,bamboo,fisheye,crucible,crowd) with SSL and SSO and other testing and tracking like testlink, glpi.
Segregated networks in a DMZ environment with PVLANs and NAT based on "only minimal required/needed ports/protocols".
Automating various tasks like SSL signing, user deactivation in various services ( puppet/chef )
Maintaining a personal distribution as a template for various servers in a VMWare virtualized environment requested by the teams with custom modifications for various packages.
I'm mostly using CentOS and Gentoo on the server side.
Can do BASH, PHP fluently but I can also read Perl/Python fairly easy ( just didn't need them thatmuch ).

Testing Engineer, BITDEFENDER Security for Virtualized Environments, Bucharest


http://bitdefender.com/sve/ - Homepage

  • August 2011 - March 2013 (1 year 7 months)
  • Software / Programming

Coding Perl and bash scripting for automation, stress testing and performance monitoring
Click here for more details


I worked as a software testing engineer for Bitdefender's Security for Virtualized environments.

Some of the products used are the following:
arrowVMWare ( ESX, VMCenter )
arrowCoding ( Bash/Perl for various testing )
arrowTesting ( Selenium, TestLink, Sikuli, OpenQA )
arrowNOSQL ( Mongo for various queries for the backend )
arrowAutomation ( Puppet )


I was working on functionality testing, stress testing the product's web interface and the backend linux VM.
That implied writing tests for the inhouse test mechanism for various architectures.
I had to recommend improvements on usability and recommend various setups needed to simulate the customer's experience.

Infrastructure Systems Administrator, Platinium Andreea Net, Bucharest


http://platiniumtv.ro/ - Homepage

  • Octomber 2010 - August 2017  (6 years 10 months)
  • IT Hardware, Software / Programming

Configuring networking and coding management interfaces for various services and alerting systems.
Click here for more details


I'm working incident-based/part-time for an ISP as an IT Network Administrator in Bucharest for which I've created the whole infrastructure from the ground up.

Some of the products used are the following:
arrowRouting ( Quagga, Cisco L2/L3 Switches )
arrowPPPoE ( Linux concentrator based on RP-PPPoE )
arrowRadius ( FreeRadius for AAA )


I've created the web interfaces for managing the clients PPPoE accounts.
Monitoring/alerting with nagios/cacti ( developed custom templates ).
Mail and web servers for the company users.
I'm also taking care of the CISCO routers, GePON fiber nodes management, all and any tech needs that might arrive.
Ttroubleshoot various client problems that might affect a branch or the whole network.
I've set up VPN machines using openvpn with GRE tunneling ( tun / tap )

Programmer, Freelancer, Bucharest


http://www.freelancer.com/u/dexter01.html - Profile

  • 2008 - 2011 (3 years)
  • IT Hardware, Software / Programming

Coding mostly for automatic scrapping, maintenance and administering services.

Made all sorts of crawlers for different websites.

Management interfaces for various mass services.

IT Infrastructure Administrator, S.C. Eniasan S.R.L., Motru


http://eniasan.ro/ - Homepage

  • July 2007 - October 2009 (2 years 3 months)
  • IT Hardware, Software / Programming, Telecom

Implemented from the ground up and managed the linux servers and services for the CMTS/Fiber clients. Set up all the routing and monitoring of the network. Integrated security and authentication methods.

Studies

University of Craiova


http://inf.ucv.ro/ - Homepage

  • Faculty (finished), Computer Science
  • 2007 - 2011
  • A nice environment with great teachers. Proud to be their student.

Abilities

  • Foreign languages   English - Advanced
  • Activities   Projects
    https://serverstuff.info - A monitoring page for everything server related
    http://d3xt3r01.tk
    http://wiki.d3xt3r01.tk - Management platform for voice and SMS .

About Me

Personal Experience


I've set up various servers and services for my own use and development.
I've also manually configured kernels to fit my needs and hardware.
I've used FFMPEG and web interfaces for transcoding (rtmp and others) for video training purposes.
Set up torrent and usenet servers with web interfaces for software distribution.
I use desktop services like VirtualBox + guacamole ( remote virtual administration ).
X+remote :0 with RealVNC, various web apps ( owncloud / phpmyadmin / phpvirtualbox / mediawiki / postfixadmin / roudcube / tcexam / cacti / nagios )
Everything compiled and optimized based on my own needs.
LIRC ( for IR remotes ) also, I like TMUX and SCREEN to keep my sessions up remotely.
I did a little bit of photoshop and 3d animation, some game programming ( unity ).
Did webdesign ( css + html with the php/html/sql backend ).
Codded a little bit of NodeJS/PhantomJS.
I used to help people in my free time on Google's helpouts until it closed...

I can pretty much do anything thrown at me as long as there is enough time.

I'm learning to get my CCNA/CCNP, RHCSA/RHCE and MCSA.

Copyright © 2023 Adrian Sandu, Last updated: 2022-12-06