Krzysztof Nowak

System Administrator at Lumesse

Cracow Metropolitan Area

About

- System Administrator - Senior Customer Service Advisor - Network Administrator - Pentester Specialties: - configuration and administration of Debian and Solaris based operating systems - scripting (bash/python/awk) - monitoring of critical services - reporting incidents and security flaws - firewalling and hardening of production systems - maintenance of application servers (jBoss, ColdFusion) - penetration tests of internal systems and applications - automation on large scale (Ansible) - automation of useful task (Rundeck, Jenkins)

Experience

  • Pentester at Niebezpiecznik.pl
    Dec 2010 - Present · 15 yrs 8 mos

    - penetration tests of webapplication (SQL injection, XSS, LFI/RFI etc) - reporting vulnerabilities - security audits of network systems (Linux and Unix based distributions, routers, switches, wifi etc) - newtork and system hardening - conducting training in network security and penetration testing

  • System Administrator at Lumesse (formerly known as StepStone Solutions)
    Jan 2008 - Present · 18 yrs 7 mos

    - security enhancements of both local and production networks - bash/awk/perl scripting to automate process of patching and deployment of Lumesse internal applications - setup and maintenance of production platforms based on SPARC and Intel architecture (Solaris, Debian Operating Systems) - monitoring and reporting any network/system failures - firewalling - software load balancing of HTTP traffic - setup and maintenance of Application Servers (mainly jBoss and ColdFusion instances) - penetration tests of Internal Network and Applications - automation of day to day activities using Rundeck, Jenkins and Ansible - rapid deployment in AWS Cloud

  • System Administrator at WebProgress
    Jan 2007 - Dec 2010 · 4 yrs

    maintenance and configuration of Debian based server installation for PHP programmers (vhost apache, bind, svn, ftp, postfix)

  • Senior Customer Service Advisor at Sun Microsystems
    Jul 2006 - Dec 2007 · 1 yr 6 mos

    - support for entry level and mid range servers, libraries and storage - first line of support for Sun's customers - organizing training sessions for new employees

  • Network Administrator at Collegium Medicum of Jagiellonian University
    Jan 2004 - Jun 2006 · 2 yrs 6 mos

    - project for internal LAN network - server deployment - shaping traffic, QoS - firewalling critical services - getting rid of abusers from internal LAN