Curriculum Vitae Koen Janssens 2015
PROFILE: SENIOR SYSTEM ENGINEER
HOLISTIC ICT: “BRIDGING THE GAP BETWEEN BUSINESS-ORIENTED DEMANDS AND TECHNOLOGY-DRIVEN SOLUTIONS”.
"I PROVIDE NETWORK SERVICES WITH A FOCUS ON SECURITY ACROSS MULTIPLE TIERS. THIS MEANS FROM APPLICATION LAYER AND ABOVE TO THE PHYSICAL WIRE
AND BEYOND, INCLUDING AUTHENTICATION AND MIDDLEWARE. MY EXPERTISE IS BUILT ON SEVERAL YEARS OF IN-DEPTH KNOWLEDGE AND EXPERIENCE OF THE
SUPPORTING TECHNOLOGIES SUCH AS DIRECTORY SERVICES, MICROSOFT-LAND, BIG APPLICATIONS SUCH AS EXCHANGE, AND VIRTUALIZATION TECHNOLOGIES.
MY PERSPECTIVE IS PROJECT-BASED, BUT TECHNICAL (IF NOT NECESSARILY HANDS-ON)."
PERSONAL INFORMATION:
PERSONAL:
NAME:
KOEN JANSSENS
EXPERIENCE: 15 YEARS +
NATIONALITY:
BELGIAN
AGE:
41
ADDRESS:
VAN ESPENLAAN 6
CITY:
1930 NOSSEGEM
PHONE:
0477/577772
E-MAIL:
KOEN.JANSSENS@SPLITBRAIN.BE
WEBSITE:
HTTP://WWW.SPLITBRAIN.BE
HTTP://WWW.LINKEDIN.COM/PUB/KOENJANSSENS/5/342/B64
1
Curriculum Vitae Koen Janssens 2015
JOB FOCUS:
Microsoft
Virtualization
Security
Linux/BSD
Networking
LANGUAGE SKILLS:
Read
Write
Speak
Dutch
Very Good
Very Good
Very Good
French
Good
Moderate
Moderate
English
Very Good
Very Good
Very Good
2
Curriculum Vitae Koen Janssens 2015
EDUCATION:
1992
Humaniora, Sint-Pieterscollege Leuven
VENDOR CERTIFICATIONS & TRAINING:
VENDOR CERTIFICATIONS:
1998
1998
2000
2000
2004
2008
2009
2010
2011
2011
2011
2012
2014
2015
2015
Novell Master CNE (Netware 4/5)
Microsoft MCSE (NT4/Windows 2000/Windows 2003)
Cisco CCNA (recertified 2009)
Sair Linux Certified Administrator
Checkpoint CCSA/CCSE NG5
Microsoft MCTS Exchange 2007
ITIL v3 Foundation
VMWare Vsphere VCP
Wireshark certified network analyst (WCNA)
Microsoft Windows 7
Prince 2
Cisco VPN
Lean ICT
Linux LPIC-2
BSD certification group BSD associate
OTHER TRAINING
Cisco BCMSN (switching)
Cisco ICND
Cisco BSCI (routing)
Avaya switching
SCRUM master
3
Landis
Flexcom/Azlan
Azlan/Flexcom
Avaya/Lucent
USG
2000
2000
2001
2001
2015
Curriculum Vitae Koen Janssens 2015
TECHNICAL SKILLS (SCALE 1/BASIC – 5/EXPERT)
Methods & Techniques:
ITIL v3 (foundation level)
Prince 2 (foundation)
Technical writing (Word, Visio)
SCRUM
3
2
4
2
OS:
Windows NT4, 2000, 2003, 2008
FreeBSD, OpenBSD, Linux
Mac OSX
Novell Netware 4/5
Networking:
IP/IPX Networking and protocols
Cisco: switching
Nortel/Avaya switching
Cisco: routing
Cisco ASA: authentication, firewall & VPN
Cisco loadbalancing (CSS content switches & ACE loadbalancers)
Cisco Wide Area Application Services (WAAS/WAFS)
Infoblox DNS management
Wi-Fi (Enterprise wireless lans)
Diagnostic/performance monitoring:
 Compuware end-to-end application monitoring
 Wireshark / tcpdump packet analysis
 Netflow analysis
Radware Linkproof
Security:
Firewall & VPN:
 Checkpoint, Microsoft ISA/TMG/UAG, Cisco PIX/ASA
 Netscreen/Juniper
Symantec Antivirus / Mcafee EPO
Messagelabs antispam & web filtering
Internet street & DMZ design (network segmentation, load balancing, proxying,
authentication)
Cryptography & authentication:
Vasco & RSA authentication tokens
X509 PKI (Windows Certificate Services, OpenSSL) & Securing sites using SSL public PKI
Active directory & LDAP authentication
PGP & S/MIME email & data encryption
4
4
5
3
3
5
4
3
3
4
4
3
3
4
2
5
4
2
5
3
3
3
4
3
4
4
4
Curriculum Vitae Koen Janssens 2015
Linux/BSD environment:
Messaging: postfix, sendmail + client-side access
MySQL 3/4/5
Network management (Nagios, Icinga, Cacti, RRDTool, …)
Firewalling: Linux iptables, BSD pf
OpenVPN remote access & site connectivity
Squid forward & reverse web proxy
Snort / Nessus network IDS
Web services:
Apache, LAMP/WAMP setup
IIS 4/5/6/7
Bluecoat web proxying
IBM TAM/Webseal
HTTP protocol knowledge
 Header & cookie manipulation
 Ssl offloading
 Loadbalancing & stickiness
4
4
5
5
4
5
4
5
4
3
2
5
Virtualization technology:
VMware Virtual infrastructure
Veeam data replication/backup
5
4
Microsoft environment:
Microsoft networking infrastructure (Active Directory / NT4 domains)
Microsoft messaging (Exchange 5.5/2000/2003/2007/2010 & Microsoft Directpush)
Windows 2003 & 2008 Terminal Services
Desktop management, network management & software distribution using Group Policy
Windows Server Update Services (WSUS) patch management
SharePoint portal server 2007
SQL server 97/2000/2005/2008
Microsoft Clustering
4
4
4
3
5
3
3
3
Packages:
HP SIM server
Backup/DRP:
 Symantec Backup Exec, Veeam backup & replication
 Arcserve
Messaging (non-Microsoft)
 Blackberry Enterprise (BES)
 Lotus Domino
3
5
3
4
3
Programming:
Scripting: VBScript, bash scripting, windows batch scripting, power shell
4
Hardware:
HP servers
Storage (SAN/NAS)
3
2
5
Curriculum Vitae Koen Janssens 2015
PROFESSIONAL EXPERIENCE
04/2014 until present
Splitbrain (self-employed)
Network & security Engineer (Brussels Airport Company) (7/2015 – present)
o Performance measuring and availability monitoring project:
 Monitoring system setup for network and security devices
 Based on open tools (Icinga/Cacti)
 Creation of both underlying framework as well as custom checks for the devices
Network & security Engineer (IPC) (4/2014 – 6/2015)
o Data center migration project:
 Review of bids
 Evaluation of technical designs
 Implementation of network/security link-up with data center services
o Implementation of secure DMZ for web services:
 Implementation of Sophos loadbalancers
 Setup of Apache reverse proxy clusters for incoming web services
 Uniform strategy for time synchronization and name resolution
o Hardening of incoming web services due to SSL vulnerabilities
o Provide visibility into the network layer:
 Netflow data gathering, Cacti snmp graphing solution
 Checkpoint smartlog implementation
 Nagios proactive checks on network functionality
 IP address management (ipam) tool rollout
o Management of Nortel switches and Checkpoint firewall
o Integration of network (Nortel/Avaya) and virtualization layer (VMWare)
o Backups of network devices
o Operation of Axway secure transport gateway
o POC setup for ldap authentication database
09/2012 until 04/2014
Project
o
o
o
o
Serso
lead & team coaching:
Infrastructure projects for SMB
ISO conformity and audit work
Single Sign-on projects around BYOD concept
Coordination of Cloud hosting project
01-12-2008 until 09/2012
Splitbrain (self-employed)
Project team networking & security SDWorx (4/2011 – 9/2012)
o Steering of several networking & security projects:
 Wan migration project
 Internet street redesign
 Mobile devices enterprise integration (BringYourOwnDevice)
 IBM TAM/Webseal & E-ID authentication framework upgrade
o Assistance to 2nd and 3rd line teams in incident resolution
6
Curriculum Vitae Koen Janssens 2015
Project
o
o
o
o
management Serso (9/2010 – 4/2011)
Project Followup for team of system engineers
3rdline support
Incident & Problem management
Notable projects:
 Enterprise wi-fi & guest wi-fi design (2011-Koning Boudewijn Stichting)
 Terminal services cluster (2011-Koning Boudewijn Stichting)
 Backup & DRP project using Backup Exec & Veeam (2010-FWO Vlaanderen)
 Exchange 2010 migration project (2010 – Bosal Europe)
LAN/WAN engineer Acerta (5/2010 – 09/2010)
o See Job description below (LAN-WAN engineer Acerta 12/2008 -> 9/2009)
Team Coordinator Serso (10/2009 – 06/2010)
o Team coordination & planning
o Project follow-up
o Datacenter activities planning
o ISO 9000 Quality project
o Belgacom explore connectivity projects
LAN/WAN engineer Acerta (12/2008 – 09/2009)
o Management of networking & security devices (Cisco, Checkpoint, Juniper)
o Network incident follow-up 3rd line
o WAN-optimization & load-balancing configurations
o Network & performance troubleshooting
o Followup of Belgacom Explore network
o Implementations of:
 Compuware end-to-end monitoring
 Cisco WAAS
 Messagelabs web filtering
o Packet analysis using Wireshark analyzer
o DNS/DHCP administration
System engineer Serso (11/2008 – 9/2009)
o Company active in SMB market
o Notable projects:
 Server consolidation project: Exchange 2007 implementation, vmware
infrastructure setup (2009-FWO Vlaanderen)
 Network optimization project: Belgacom Explore rollout, datacenter migration and
ISA firewall implementation (2009 – Koning Boudewijn Stichting)
 Setup of HA webfarm using LAMP platform: infrastructure for database-backed
website, clustered under Linux using heartbeat package (2008-Koning Boudewijn
Stichting)
05-05-2008 until 31-10-2008
Sogeti
o 3rdline support
o Project pre-sales (Exchange 2007, Active directory)
Senior system engineer, outsourced at MetLife (05/2008  08/2008)
o Project lead for DRP testing
o EPO/WSUS reporting
o Local site administration
7
Curriculum Vitae Koen Janssens 2015
01-01-2006 until 30-04-2008 Telco Consultants NV (ex-Computer Services Solutions)
IT Manager (10/2007  4/2008)
o Server consolidation project (60+ servers to VMware ESX 3.5)
o Patching IT-environment (WSUS)
o Team coordination, follow-up & reporting to upper management
o Implementation ISA 2006 (replacing Linux firewalls)
Outsourced consultant Estee Lauder Companies (2/2007  10/2007)
o Exchange consolidation project (15000 mailboxes) Exchange 5.5 to clustered Exchange
2003
o Sox-compliancy at mailbox-level using Enterprise Vault
o Active Directory management
o Macintosh integration project into Active Directory
o Blackberry Enterprise Server management
o Setup of test-lab in virtual environment (multi-site, geographically separated testing
environment)
o Implementation DST changes project EMEA/APAC
o Exchange 2003 granular delegation of control set-up for site administrators
Outsourced consultant ING (10/2006 -> 2/2007)
o Exchange 2003 mailbox clustering
o ITIL incident/problem management
01-03-1998 until 01-01-2006 Computer Services Solutions NV
Remote management services (2003  2006)
o Remote services & management for SMB’s
o Backup over internet (Veritas technology) & DRP for customers
o Migration projects: Active directory, Symantec antivirus, Exchange 2000/2003, remote
access (Microsoft RAS, Checkpoint & ISA VPN)
o Team follow-up + reporting to customers & management
o Incident & problem management
Messaging & security project BLD Europe (2001 2003)
o Linux-project:
 Messaging solution using Sendmail & IMAP-based system
 Oracle Corporate Time calendaring solution
 Firewalling & IDS
o Linking of 2 sites using Wi-Fi-technology, upgrade to gigabit ethernet
o NT4 to Active Directory on Windows 2000 migration project
Outsourced consultant TMME Europe ( 2003)
o End-user support
o Documentation & server administration
o Packages: Novell Netware, Domino/Notes, Windows NT, AS/400 client support, DB/2
Connect
o Team leader remote site
01-01-1993 until 30-02-1998 Auto Distribution Rosvelds (not relevant ICT experience)
Warehouse & store
o Sales to customers
o Warehouse collaborator
8
Curriculum Vitae Koen Janssens 2015
NOTABLE PROJECTS
Linux and Unix-related projects:
Generic
o Sendmail/postfix/imapd/spamassassin mail setups
o Netscape calendar server
o Linux & BSD-based firewalls
o Openvpn-based tunneling solutions
o Network & host monitoring (Nagios, BigBrother, MRTG, Cacti)
o File synchronization solutions (rsync)
o Courier-imapd migration to exchange
o Samba-based file servers
o Performance tuning and network stress testing (iperf)
o Apache web farms
o Squid proxy & reverse proxying
o Mysql-based database solutions
o LAMP stacks
o Openssl setups for PKI or key/certificate management
Bigger projects:
o HA-webfarm using apache, Mysql & linux heartbeat (European institutions for citizen’s
consultation)
o E-id trustbuilder migration project (SDWorx)
o Distributed network and server management solution using open-source tools
 Managed solution for SMB market
 In-house solutions for enterprise market
o DMZ web services design using linux-based technology
Networking-related projects:
o DMZ/ Internet street redesign for big payroll company
o Webseal and web applications migration project
o WAN migration projects (mpls/vpn implementation designs, link optimalization)
Microsoft-related projects:
o Exchange and active directory migration project for multinational cosmetics company
(scope: Europe/Asia)
o Novell to active directory migration for big automotive company (operation, not part of
design team)
9