Dariusz Nowak

Linux / Network Administrator

Cyber Security Technician

I am a Technical Solutions Architect @ Dion Global Solutions

My base skills are:

  • Securing and auditing LAN/WLAN networks
  • Penetration testing of WAN / LAN networks, network services and web applications
  • Experience in Linux based server systems (Enterprise Linux, Debian based systems).
  • Experience in administration of WAN/LAN/WLAN networks
  • Experience in enterprise network and servers monitoring
  • Creating and maintaining firewalls (iptables, cisco, checkpoint, juniper).
  • Cloud Computing (AWS) and version control (GIT,SVN) / server automation software (SALT, Puppet, Chef) knowledge
  • Programming and scripting (bash/Python)
  • Experience in network services(www, mail, dns, ftp, etc.)
  • Rich experience and knowledge about network protocols/services
  • Basic skills in Windows administration
  • Basic knowledge of database server administration (oracle, mysql, mssql)
  • Knowledge of topics from Cryptography and Cryptology fields
  • High analytical skills

Personal Information

Date of birth
dariusz[ at ]dariusznowak[ dot ]net
+44 753 97 62 934


June 2014 - Now

Technical Solutions Architect

Full Time Position

Dion Global Solutions

  • GNU Linux (Enterprise Linux/ Debian) server administration
  • Network administration (LAN, WAN, Site to Site VPN's etc.)
  • Security administration (network, hosts) and protection/audit of customer data/solutions
  • Enterprise Monitoring solutions architect (Nagios, Icinga2)
  • Firewall administration and configuration (Cisco ASA, Checkpoint)
  • Network services administration (dns, ftp, sftp, ssh, vpn)
  • Virtualization solutions based on Hyper-V and Vmware Esxi
  • Scripting and software development under Linux (bash/python) and MS Windows (powershell)
  • Database servers administration and troubleshooting (Oracle and mysql)
  • Industry software / servers automation (Chef, Salt stack)
  • Preparing technical and project documentation for internal and costumer usage

→ View website

June 2013 - May 2014

Mobile IT Technician

Full Time Position

Colas Rail Limited

  • 1/2 Line technical user support
  • MS Windows (2k8, 2012) server maintenance and monitoring (AD, MS Exchange, MS, Lync)
  • Backup solutions configuration and monitoring (Arc Server, DPM)
  • Hardware Support (laptops, desktops) and software assistance (MS Windows, MS Office, Citrix)
  • Basic network operations and monitoring (traffic, qos, wan links)
  • Mobile assets management
  • Virtualization troubleshooting and monitoring (VMware ESXI)

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October 2009 - December 2010

Graduate IT Infrastructure Consultant

Graduate full time position and ad-hoc systems support / maintenance

Caparo Engineering Forging Bomet

  • Basic administration and monitoring of Linux and Windows servers
  • IT migration projects consultancy (from MS Windows to GNU/Linux)
  • Incident Monitoring and IT Operations co-ordination
  • Working in ITIL Environment
  • 1/2 Line technical user support (MS Windows, MS Office)
  • MS Exchange, SQL Server, AD and Linux LAMP services maintenance and monitoring
  • Hardware monitoring and ad-hoc repairs (desktop, laptops)

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2011 - 2012

University of Szczecin

Szczecin, Poland (BSC course - not finished due to personal reasons)

Information Technology and Econometrics

2010 - 2011

West Pomeranian Univerity of Technology

Szczecin, Poland (BSC course - not finished due to personal reasons)

Computer Science

2007 - 2010

Zespol Szkol Elektrycznych (Technical College)

Gorzow Wlkp, Poland (College/High School)

Computer Science (Web Applications Developer)



Very Good
Very good


Penetration Testing OWASP Wireshark Nmap Metasploit Framework Cryptography Kali Linux
Programming/scripting Languages
Bash Sed/AWK C++ SQL Python
LAN WAN VPN Firewall Cisco/IOS Checkpoint PPTP PPPoE DNS
POSIX Apache/nginx Postfix/exim proftpd Squid Kernel security iptables
Icinga2 Nagios Oracle 11g mysql MS Windows VMWare ESXI Hyper-V

Activities / Courses / Awards

Winning Team | Cyber Security Challenge November 2015 Masterclass

November 2015 Masterclass was developed by QinetiQ with support from Cyber Cents, FAlanx, GCHQ, Roke Manor and Cisco. Masterclass. The Cyber Security Challenge UK event, taking place 20 November 2015 at Church House in the grounds of Westminster Abbey, sees 42 of the UK's best hobbyist hackers compete to prevent a fictitious deadly strain of Anthrax and Ebola from being released.

CyberSecurity Challenge 2015 | Press Information

DMU Cyber Security Bootcamp

This year's Cyber Development Camp will last three days for civilians and military personnel that want to join the growing cyber-security industry. Training will be directed by companies such as the National Grid, BAE, British Telecom, InfoSec Skills. DMU's Cyber Security Centre and the Software Technology Research Laboratory will also place teams in the event.

DMU Cyber-security bootcamp to train future experts | Pres Information

3rd place in the largest Polish national IT challenge called Karierosfera (Managing IT Infrastructure Module)

Karierosfera makes it possible to contact students from across the country with the most promising employers operating on the Polish market. Participation in the project can refer to the requirements that reputable company pose to potential employees, and the winners selected in the competition gives you the chance of a paid internship, which may be the first step towards your dream career.

Exam 70-685 | Official University Information

Support Windows 7 in Enterprise Environment (70-685) (currently expired)

In this Windows 7 training course you will learn as a support technician to manage and support Windows 7 in a technically complex corporate environment. You are also prepared to achieve the MCITP Enterprise Support exam 70-685.

Exam 70-685 | Microsoft Course Information


Movies Video games Jazz/Blues Fantasy books


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Please contact me using my email address dariusz [at] dariusznowak [dot] net