IT Senior Consultant
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- 34355 Staufenberg, Niedersachsen
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- 20.12.2024
Kurzvorstellung
Auszug Referenzen (1)
"During the period mentioned, K. H. always impressed with his excellent professional expertise and his high level of commitment to the projects."
3/2013 – 8/2022
Tätigkeitsbeschreibung
Architecture/Planning and Setup of a clustered LDAP infrastructure for several thousands of UNIX Servers.
Migration of several thousands of Solaris, AIX, HP-UX and Linux Servers from local users to LDAP.
Hardening of UNIX Servers – all flavors of derivates.
Deployment of SUDO out of LDAP for Solaris, Linux, AIX and HP-UX. Migration from SUDO to RBAC (Role Based Access Control) for Solaris, AIX, HP-UX and RedHat Linux (SeLinux).
Deployment of RBAC out of LDAP for Solaris and AIX.
- management of several Workgroups to create new standards to deal with the technical problems to avoid issues during the migrations
- Proactive prevention of problems
- Architect for all attached AIM systems
IBM Aix, HP-UX, Solaris, Perl, Red Hat Enterprise Linux (RHEL)
Qualifikationen
Projekt‐ & Berufserfahrung
7/2024 – 11/2024
Tätigkeitsbeschreibung
Freelance consultancy AWS disaster recovery
Samsongroup AG
Freelance consultancy and support/Architecture in AWS
- Risk Analysis
- Development of an Disaster Recovery Concept tailored for Samsongroup AG
- Disaster Recovery Plans, Doomsday Scenario and Daughter scenarios
- carrying out AWS cloud assessments, risk analyzes
- in the design and implementation
- Cross region and Account Backup for data protection
- cold standby DR-Region
Environment:
- AWS
- Terraform
Amazon Web Services (AWS), Back up / Recovery
9/2022 – offen
Tätigkeitsbeschreibung
reelance consultancy and support/Architecture in IT Infrastructure and Datacenter
- in the design and implementation of secure network architectures,
- in advising and conducting workshops on authorization and IAM concepts,
- in the field of Security Incidence / Vulnerability Handling, hardening and patching,
- in carrying out security assessments, audits and risk analyzes,
- in the design and implementation of PKI,
- in the development of customer-specific policies along best practices
- in the implementation of delegation of rights,
in Identity and Access Management (IAM), in particular:
- in the architecture and LDAP schema design abd the configuration and implementation of the
following enterprise identity and access management products:
- Sun / Oracle Directory (Proxy) Server Enterprise Edition (O/DSEE),
- Sun OpenDS, Oracle Unified Directory (OUD),
- OpenLDAP,
- LDAP Performance Tuning
As AWS Cloud Solutions Architect
- ELB
- ASG
- EFS
- Elastic Disaster Recovery
- EC2
- Security Groups
- RDS
- IAM
- S3
- Cloud Formation
- Terraform
in UNIX Administration:
- Solaris
- Linux
- SELinux
- configuration management
- identity management
- security concepts
- user authorization
- RBAC
- sudo
- monitoring
- Icinga
- Zabbix
- Nagios
- backup and desaster recovery
Amazon Web Services (AWS), Anwendungsadministration, Identitätsmanagement, It-Beratung, IT-Support (allg.), IT Sicherheit (allg.), Kryptographie, Rollen und Berechtigungen, Server Administration, UNIX
3/2013 – 8/2022
Tätigkeitsbeschreibung
Architecture/Planning and Setup of a clustered LDAP infrastructure for several thousands of UNIX Servers.
Migration of several thousands of Solaris, AIX, HP-UX and Linux Servers from local users to LDAP.
Hardening of UNIX Servers – all flavors of derivates.
Deployment of SUDO out of LDAP for Solaris, Linux, AIX and HP-UX. Migration from SUDO to RBAC (Role Based Access Control) for Solaris, AIX, HP-UX and RedHat Linux (SeLinux).
Deployment of RBAC out of LDAP for Solaris and AIX.
- management of several Workgroups to create new standards to deal with the technical problems to avoid issues during the migrations
- Proactive prevention of problems
- Architect for all attached AIM systems
IBM Aix, HP-UX, Solaris, Perl, Red Hat Enterprise Linux (RHEL)
3/2011 – 11/2012
TätigkeitsbeschreibungCreation of technical standards and documents for the centralization of approx 400 ClearCase environments spread over the world into 6 mega datacenters. Analysis of all environments. Pilot installation in the Atlanta datacenter. In parallel: level 4 UNIX administration
Eingesetzte QualifikationenSolution Architektur
9/2009 – 3/2011
TätigkeitsbeschreibungMigration from DDTS to ClearQuest – Installation of a new SUN Grid (Solaris 10 and Linux RH) – Administration of several Datacenters in EMEA (approx. 1100 Solaris, 30 HPUX, 300 Linux Systems) – Patch management. Etc.
Eingesetzte QualifikationenHP-UX, Solaris, Red Hat Enterprise Linux (RHEL)
4/2008 – 9/2009
Tätigkeitsbeschreibung
- Creation of concept to centralize ClearCase
- Server and application installations
- Cloning of the production environment from Antwerp too Stuttgart
- Problem: CC over WAN
- successful implementation and proof of the technical feasibility with superbatch test on a real product
Enterprise Architect (EA)
10/2007 – 3/2008
Tätigkeitsbeschreibung
- Migration of 870 sites into 6 Mega-Datacenters
- SPOC for EMEA (Technical Solutions)
- management of several Workgroups to create new standards to deal with the technical problems to avoid issues during the centralization
- Proactive prevention of problems
Enterprise Architect (EA)
9/2006 – 9/2007
Tätigkeitsbeschreibung
- defining worldwide standards for Alcatel-Lucent + Solaris 10 Zones (container)
+ IPMP
+ SAN
+ Storage Foundation
- Administration of approx. 1000 Unix Servers in different
EMEA datacenters
- Solaris, Linux, HP-UX
- Installation and conception of Solaris Zones
(Oracle, Peoplesoft, Tuxedo, Weblogic....)
- Installation of several Veritas HA Clusters SF 5.0
with Oracle Databases for IPTV
HP-UX, Solaris, Red Hat Enterprise Linux (RHEL), VERITAS Cluster
12/2005 – 7/2006
Tätigkeitsbeschreibung
- planning of the new datacenter, racking and cabling - creation of the concept for the move
- creation of shutdown and start-up scenario
- creation of disaster recovery concept
- consulting for the network infrastructure - consulting for the power planning
- creation of cable plans
- analysis of risks
- Technical responsible for the move SAN, Libraries and Storages included
- approx. 100 Solaris and 80 Wintel Servers
Enterprise Architect (EA), Enterprise project management (EPM)
9/2004 – 12/2005
Tätigkeitsbeschreibung
- Migration of all Solaris Systems onto new hardware
- Migration of ClearCase Vob- View- und Build- Servers
- Consolidation of all Oracle Databases
- Migration of all Services (DNS, NIS, Samba, etc)onto new hardware
- installation of a new backup infrastructure
incl. SAN (on EMC CLARIION Basis)
- NIS Domain Merging
- installation of a SUN N1 Grid with 25 Grid Members
- creation of standards for root disk mirroring with SDS and Veritas, IPMP Multipathing,
Storage management etc.
- performance Troubleshooting of 100 Solaris und 80 Wintel Servers
- Migration of all Solaris Systems onto new hardware
- Migration of ClearCase Vob- View- und Build- Servers
- Consolidation of all Oracle Databases
- Migration of all Services (DNS, NIS, Samba, etc)onto new hardware
- installation of a new backup infrastructure
incl. SAN (on EMC CLARIION Basis)
- NIS Domain Merging
- installation of a SUN N1 Grid with 25 Grid Members
- creation of standards for root disk mirroring with SDS and Veritas, IPMP Multipathing,
Storage management etc.
- performance Troubleshooting of 100 Solaris und 80 Wintel Servers
Environment:
AWK, Apache, Citrix Metaframe, DSL, EMC, Emulators, Ethernet, Exceed, FDDI, FTP, Firewall, SUN Grid, HTTP, HTTPD, Hub, ISO/OSI, Internet, Intranet, LAN,
Legato Networker 7.1.2, Lotus Domino, Lotus Notes,
MS Internet Explorer, MS Office, MS Project, MS Visio, NFS,
NetBios, Netscape Navigator, OpenSSL, POP3, RFC, RPC, Router, SAN, SMTP, SNMP, SUN, SUN OS, Solaris, Samba,
Shell-Scripts, Spark, Sun Solaris 4 ,5 ,6, 7, 8 , 9 ,10, Sun Solaris Hardware, Sun Ultra Sparc, TCP/IP, Telnet, Unix, VPN, Veritas Volume Manager, Win NT,
Windows 2000, Windows XP, X.400, X.500, ksh, make, MySQL, sed, sendmail
Enterprise Architect (EA), Enterprise project management (EPM)
7/2004 – 8/2004
Tätigkeitsbeschreibung
- Installation und Configuration of Veritas Netbackup Enterprise Server 5.0 on Sun Fire V250 and Compaq
MSL5026 Library
- Integration in existing SAN
- Disaster Recovery Scenarios for
Netware 6, Sun Solaris 8, Windows 2000, Citrix and Lotus Notes
Back up / Recovery
4/2004 – 5/2005
Tätigkeitsbeschreibung
- Installation and Configuration of a Monitoring Server basing on RedHat, Nagios, Apache, MRTG and SMTP
- Visualization of the complete Network in 2D- and 3D
- Integration of all servers and applications and switches into the monitoring
- Notification configuration when problems with Servers, services or active network components occur, as well as when thresholds are reached in regards to performance
- training of all Admins
Red Hat Enterprise Linux (RHEL), Apache HTTP Server, Nagios
7/2003 – 4/2004
Tätigkeitsbeschreibung
- creation of a new IT concept for an application developing enterprise
- restructuring of the entire IT
- Creation of new NIS domain containing several Unix machines
- Migration to Solaris 8
- Patching of all Systems
- Installation and configuraion of SSH, Samba, NIS,
nagios, amanda, SDS (solstice disc suite) and jumpstart
- restructuring of NDS
- creation of new a new conception for software distribution - testbled installation
- Unattend-Installation
- packaging of software packages
- migration of printing to NDPS
- Iistallation and configuration of NFS 3.0 for Novell
Enterprise Architect (EA)
11/2002 – 2/2003
Tätigkeitsbeschreibung
- setup of a backup testenvironment
- Evaluation of Veritas Netbackup 4.5 or Legato Networker 6.2.1
- Consulting
- Installation and configuration of Veritas Netbackup
and Legato Networker on a SUN Enterprise
5000 with a L1000 Library and Solaris 8
- conception and realization of testscenarios for backup and restore (desaster recovery) of different operating systems and databases
EMC Networker, VERITAS Cluster
12/2001 – 10/2002
Tätigkeitsbeschreibung
- creation of a new backup concept
- Migration from Legato Networker 6.02 to 6.1.1.
- Troubleshooting of existing backup environment on a SUN Cluster 2.0
- dissolving of the Cluster
- Performance analyses of the backup servers
- migration on a SunFire 880
- Upgrade of two StorageTec L700 Librarys and one
IBM LTO Library into a Backup-SAN
- Implemention of NDMP
- Migration of all databases from T3 storage on EMC SAN enclosures
- migration of the database backup to RMAN and snapshots - Installation and configuration of Netsaint (Nagios)to monitor Backups and Backup-Servers including
120 Clients
- Duplication of this environment in a second datacenter for desaster recoveryen
- Billingsystem of 7 Million telephone company clients
Back up / Recovery
Zertifikate
Amazon
Amazon Web Services Training and Certification
AWS
Ausbildung
Universität Kassel
Kassel
Persönliche Daten
- Deutsch (Muttersprache)
- Englisch (Fließend)
- Französisch (Fließend)
- Italienisch (Grundkenntnisse)
- Europäische Union
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