Sven Michels teilweise verfügbar

Sven Michels

CEO / Consultant / Cloud Architect&Engineer / Linux specialist

teilweise verfügbar
Profilbild von Sven Michels CEO / Consultant / Cloud Architect&Engineer / Linux specialist aus FrankfurtamMain
  • 60326 Frankfurt am Main Freelancer in
  • Abschluss: nicht angegeben
  • Stunden-/Tagessatz: 150 €/Std. 1200 €/Tag
    Stunden-/Tagessatz abhaengig von Projektdauer
  • Sprachkenntnisse: deutsch (Muttersprache) | englisch (verhandlungssicher)
  • Letztes Update: 05.04.2016
SCHLAGWORTE
PROFILBILD
Profilbild von Sven Michels CEO / Consultant / Cloud Architect&Engineer / Linux specialist aus FrankfurtamMain
SKILLS
Experience:
>15 Years

Coding/Languages:
Unix-Shell (Bash, sh, ksh)
Python
Perl
PHP
SQL
HTML/CSS/JavaScript
Basics in C

Operation Systems:
GNU/Linux (SLES, Ubuntu, Debian, Redhat Enterprise
Linux, Fedora, CentOS)
Embedded Linux (OpenWRT)
Unix (Solaris, HPUX, Aix)
Windows (NT 4.0 to 2008 R2)

Software:
Cloud (OpenStack, Ceph)
Automation (puppet, ansible)
Virtualisation (Vmware [Workstation, GSX, ESX(i)],
Xen/XenServer, UserModeLinux)
Webserver (Apache, Litespeed, thttpd, Lighttpd)
Content Management (Typo3, SixCMS)
PHP4/5
Mailserver (Exim, Postfix, Courier, Sendmail, Cyrus,
Dovecot)
OpenSSL (PKI/certificate handling/management)
DNS (Bind 8/9, PowerDNS, djbdns)
Newsserver (INN, Leafnode)
FTPServer (pure-ftpd, Proftpd, VSFTPd)
OpenVPN
Squid (Proxy, reverse Proxy, autoconfiguration)
Freeradius/Radiator (802.1x, DialIN)
Pacemaker/Heartbeat, Keepalived, VRRPd
Loadbalancing using Linux Virtual Server (IPVS)
Pound (Webloadbalancer)
HA-Proxy
Software packageing using RPM and DPKG

Databases:
MySQL 3,4,5
MariaDB
SkySQL
Galera
Oracle 8 - 11g
MSSQL (Basics)

Networking:
IPv4 and IPv6
Operations and configurations of Cisco, Foundry HP,
and Juniper network hardware
Routing (static and dynamic) using BGP, OSPF and
RIP
SDN
Firewall (iptables, ipfw, Checkpoint)
DHCP, TFTP
RIPE Local Internet Registry Management

Main focus:

Administration
Operations of servers, clusters, networks and services (ISP networks, BGP, internet services)

Storage Systems
Administration and configuration of NetApp, HP EVA and FreeNAS/Synology systems, Ceph (block/object storage)

Security
Conception of processes relevant to security
Penetration tests (remote and local)
Social engineering

HA-Systems
Design and operations of HA-clusters, -databases and networks

Consulting and Planning
Design and implementation of IT-concepts and projects

Systems analysis and optimization
Load analysis and optimization to increase performance, Live-optimization of databases, web-, application-, DNS-servers and complex mailsystems

Industry focus:
Internet Service Provider
Banks
IT-Service Provider
Telcos

Personal qualities:
good capacity for teamwork
quick powers of comprehension
flexibillity
area thinking
resistance against stress
management skills


 
PROJEKTHISTORIE
08/2002 till today:
Company: sectoor GmbH, Frankfurt
Function: CEO

Topics:
Operations of our datacenter and metro-network in Frankfurt/Main with the following core competencies:
web-, mail-, ftp-Services, hosting solutions with HA services, HA internet- and phonelines, VPN services, dedicated servers, databases virtual dedicated servers, DNS services, SSL-certificate handling/management, domainhosting and -management, consulting services.


07/2015 till today:
Company:
Deutsche Bank AG
Function: OpenStack Consultant

Topics:
Feasibilitystudy OpenStack/SDN/NFV to implement security features in existing and planned networks with different vendors (e.g. VMWare, Nuage Networks, Juniper Networks, Checkpoint) and team training on the subject.


07/2014 till 04/2015:
Company: SAP SE, St. Leon Rot (on behalf of sectoor GmbH)
Function: HA/DR and OpenStack Specialist

Topics:
Conceptual design and functional testing of HA/DR setups and scenarios for SAP Cloud services. SDN PoCs with different types of SDN solutions to find a suitable SDN solution for SAP needs based on OpenStack and also in combination with VMWare ESXi.


10/2010 till 07/2014:
Company: Deutsche Telekom AG, Darmstadt (on behalf of sectoor GmbH)
Function: Linux operations, cloud plattform development and operations

Topics:
Operations of customer facing products and services, operations of the VMWare plattforms for internal and
external systems, planning, development, business transition and handover of several cloud plattforms based on OpenStack, using Ceph as block and object storage, automation using puppet for installation and deployment


03/2007 till 12/2015:
Company: Customer of sectoor GmbH
Function: Operations of a world wide community plattform

Topics:
Operations of linux servers with focus on web, database, mail and streaming services (html5 video on demand). Performance optimization of MySQL queries, database layouts and hardware. Video encoding, distribution (geo based CDN) and delivery of VoD.


02/2008 till 02/2009:
Company: Hewlett Packard GmbH, Heidelberg (on behalf of sectoor GmbH)
Function: Linuxconsultant

Topics:
Proof of concept and implementation of a authentification solution based on IEEE 802.1x for HP customers with the following key aspects:
Using freeradius as authentification service, Novell eDirectory as authentification backend, dynamic port based VLAN allocation using Cisco and HP networking equipment.


04/2008
Company: DWP Bank on behalf of Hewlett Packard GmbH, Düsseldorf
Function: Linuxconsultant

Topics:
Datacenter reloctation from Düsseldorf to Frankfurt. Planning and technical assistance to the relocation of the
proxy farm with the following key aspects:
SQUID Proxy, RedHat Linux, Websense, InterScan Web Security Suite (IWSS from TrendMicro)

03/2005 till 10/2007:
Company: Hewlett Packard GmbH, Heidelberg (on behalf of sectoor GmbH)
Function: Linuxconsultant

Topics:
Conceptual design, operations and maintenance of IT services for customers of HP.
Key aspects: Proxy, Radius, Webservices, DNS
 
ZEITLICHE UND RÄUMLICHE VERFÜGBARKEIT
Area: Frankfurt +50km
Travel: depending on project
Availability: May/2016
SONSTIGE ANGABEN
Mobility: driver license
KONTAKTANFRAGE VERSENDEN

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