REFERENCES
UNIX System Engineer 06/2017 - 12/2017
Swiss Post, Zollikofen, Switzerland
- Preparation of a Proof-of-Concept targeting a IaaS & PaaS Cloud-Migration to Oracle Cloud
- Migration planning of existing Oracle WebLogic Server environments to a shared platform
Oracle Java Cloud, Oracle IaaS, Red Hat Linux, Oracle Linux, Oracle WebLogic Server
Cloud Service Architect 0I/2017 – 12/2017
swisscloud.online, Belp, Schweiz
- Build & Make of a IaaS Hosting Platform für SMIs, NGOs and individuals
- Implementation of underlying virtual IPv6 networks, servers und services
- Implementation of IT Service Management processes
- Technical Lead
Oracle Solaris 11, Oracle Linux 7, MySQL, MariaDB, Git, Puppet, Apache, mod_ssl, Kerberos, DNSSEC, Drupal, Wordpress, JIRA, Oracle Cloud
Security Consultant 06/2016 – 12/2016
Dreamlab Technologies SA, Bern, Schweiz
- Project lead during the prototype integration of an innovative cybersecurity solution
- Proof of concept at customer premises in Germany
- Presentation for the parliament of an EU country (subject to non-disclosure agreement)
Debian Linux, MS Office 365, MS Project 2016, MS Visio 2016
Security Consultant 02/2016 – 06/2016
Project subject to non-disclosure agreement, Singapore
- Analysis of a successful attack targeting an enterprise of the financial sector, located in Singapore, in partnership with a Chinese cybersecurity company
- Reproduction of the side channel attack
- Migration of the outsourced attack surface to a pirvate cloud, based upon Oracle SPARC M7 Supercluster und Exadata engineered systems
- Implementation of Mandatory Access Controls und Encryption of the entire data flows
Oracle Solaris 11, Oracle Linux 7, WebLogic, Oracle Database 12c, Splunk, IPv6, Apache 2.2, Hadoop
Data Center Architect 11/2013 – 04/2014
Shanghai Qunheng Software Technology Co. Ltd., Shanghai, China
- Replacement of a compromised data center with a modern and secure solution
- Project lead and technical lead
- Migration of services and data
Oracle Solaris 11 x86, Oracle Linux 6, Solaris Cluster 4.0, Apache 2.2, Oracle WebLogic 12, MySQL Enterprise Cluster, Java, Oracle Enterprise Manager, standard base services and protocols
Senior UNIX Administrator 11/2008 – 09/2013
Swisscom (Switzerland) Ltd., Bern, Schweiz
Technical lead of the Operational Support Systems team, responsible for the monitoring and 2nd level support of 65'000 network devices and servers of Swisscom's business customer unit
- IT Operations 24/7 of the network management systems, operational support systems and the underlying base services (OS, DNS, LDAP, SNMP, TACACS, etc.)
- Design, Build and Performance Tuning of a geographically redundant Storage Area Networks(SAN)
- Introduction of geographical high availability for 300 Servers using Solaris Cluster 3.2 (2-node cluster pairs)
- Design and implementation of a Release Management process based on ITIL v3 and ISO 30‘000
- Working in outsourcing projects, e.g. for Credit Suisse and AXA Winterthur
Oracle Solaris 10, Red Hat Enterprise Linux 6, Solaris Cluster, DNS, LDAP, SNMP, TACACS, SAN/NAS, Git, cfengine, Solaris Zones, Oracle SPARC M3000 and M5000 servers
Senior Solaris Administrator 01/2004 – 10/2008
WEB.DE / 1&1 Internet AG, Karlsruhe, Deutschland
Technical lead of the business critical Solaris servers of United Internet Ltd., as well as the advertising and user profiling services
- Migration of the WEB.DE data center and services into the 1&1 data center after the takeover
- 24/7 Operation of 45'000 physical server systems running Linux and Solaris 10
- Introduction of geographical redundancy to the enterprise, using Sun Cluster 3.2
- Implementation and operation of 1500 servers running WEB.DE homepages, portal servers and SSL offloaders
- Deputy of team leader
Consolidation of the individual advertising systeme of all 1&1 brands SUSE Enterprise Linux 7-9, Debian Linux, Solaris 10, Sun SPARC und x64 Hardware, Sybase, Apache 1.3 und 2.x, SSL, Oracle Datenbank 8 und 9, Nagios, Solaris Cluster 3.2, J2EE Directory Server 5
Systemadministrator, Freelancer 10/2002 – 12/2003
Various customers, Karlsruhe, Germany
Debian Linux, SUSE Linux, Solaris 8, Windows 2000 Server, DNS, Apache 1.3, SSL
UNIX System Administrator 09/2001 – 09/2002
iXpoint GmbH, Ettlingen, Deutschland
- Implementation of Solaris servers for business customers, e.g. Condor / Thomas Cook, Birkel, Deutsche Flugsicherung
- Design and implementation of complex mail servers
- Administration of firewalls
- First level support for customers
Solaris 8, Exim 4, Apache 1.3, Checkpoint Firewall 4.1 & NG
Systemadministrator 01/2000 – 08/2001
Concept! Technology GmbH, Karlsruhe, Deutschland
- Administration of heterogenuous server farms
- Implementation of a shared mail server for hosting customers
SuSE Linux 7.0, Microsoft Windows NT 4, Microsoft Windows 2000 Server, Solaris 8, Lotus Notes, Checkpoint Firewall 4.1, sendmail
