Curriculum Vitae Koen Janssens 2015
PROFILE: SENIOR SYSTEM ENGINEER
HOLISTIC ICT: “BRIDGING THE GAP BETWEEN BUSINESS-ORIENTED DEMANDS AND TECHNOLOGY-DRIVEN SOLUTIONS”.
PERSONAL INFORMATION:
PERSONAL:
NAME:
KOEN JANSSENS
EXPERIENCE: 15 YEARS +
NATIONALITY:
BELGIAN
AGE:
40
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
JOB FOCUS:
Microsoft
Security
Virtualization
Networking
Linux
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Curriculum Vitae Koen Janssens 2015
LANGUAGE SKILLS:
Read
Write
Speak
Dutch
Very Good
Very Good
Very Good
French
Good
Moderate
Moderate
English
Very Good
Very Good
Very Good
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
2
Landis
Flexcom/Azlan
Azlan/Flexcom
Avaya/Lucent
2000
2000
2001
2001
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)
3
2
4
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
3
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, 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
4
Curriculum Vitae Koen Janssens 2015
PROFESSIONAL EXPERIENCE
04/2014 until present
Splitbrain (self-employed)
Network & security Engineer (IPC) (4/2014 – present)
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
Project
o
o
o
o
5
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)
Curriculum Vitae Koen Janssens 2015
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
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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
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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)
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