Fachlicher Schwerpunkt dieses Freiberuflers

Docker, Kubernetes, Cloud (AWS, Bluemix) DevOps, Deployments, Automatisierung, pipelines, Virtualisierung, Linux, IT Architektur, Coremedia CMS

verfügbar ab
01.01.2021
verfügbar zu
100 %
davon vor Ort
100 %
PLZ-Gebiet, Land

D0

D1

D2

D3

Städte
Berlin
150 km
Kontaktwunsch

Ich möchte bevorzugt für Projekte in diesen Einsatzorten kontaktiert werden.

Position

Kommentar

DevOps & System Engineer, 

Integration der Software in der Container Umbung

Automatisierung (Pipelines mit Jenkins, Gitlab-CI, Rundeck)

Automatisierte Tests,

System-Architektur.

Coremedia CMS (Betrieb, deployment)

FirstSpirit CMS (Betrieb, deplyoment, Scaling)

Projekte

11/2019 - 12/2020

1 Jahr 2 Monate

DataCenter Operations / DevOps

Rolle
DevOps
Einsatzort
NRW
Projektinhalte

Operations:

 - microservices

 - wie Platformen wie :

   -- JBoss (WildFly) Cluster, Tomcat

 - Hosting CMD:  FirstSpirit

 - CDN:  Akamai

 Automatisierung (Jenkins, Rundeck, Ansible)

Monitoring (Prometheus, Grafana, Graylog)

Container (Docker)

Azure (DC-Cloud Migration)

Kenntnisse

Liferay Portal

Docker

Azure

Open Shift

Administration Linux

linux

Produkte

RunDeck

FirstSpirit

JBoss

WildFly

Prometheus

Tomcat

Akamai

Ubuntu

Jenkins

Grafana

Graylog

07/2019 - 11/2019

5 Monate

DevOps & CI/CD Experte in Software Integration

Rolle
DevOps & CI/CD Experte
Projektinhalte

gitlab CI

Kubernetes

Bare metal & VM

python & Go development

Kenntnisse

Scrum

DevOps

docker

Produkte

linux

kubernetes

docker

CentOS

Ubuntu

01/2019 - 05/2019

5 Monate

DevOps (Kubernetes) at defence and space

Rolle
DevOps
Einsatzort
Berlin / München
Projektinhalte

Einrichtung, Erweiterung und Betrieb der Integration Umgebung auf Kubernetes Basis

Bugsuche, Analyse und Optimierung der kritischen Softwarekomponenten

Betrieb und Optimierung Atlasian Tools (Jira, Confluence, Crowd, etc)

caching und optimierung der Auslieferung, page speed (nginx, ira, etc) 

Dockerizing, deployment, Ansible, DevOps, System-Architektur, jenkins, CI / CD Pipeline,

Kenntnisse

nginx

Atlassian Confluence

ansible

Optimierung

Caching

kubernetes

JVM

Atlassian JIRA

Docker

compose

linux

Produkte

RZ Betrieb

kubernetes

Ubuntu

nginx

10/2018 - 11/2018

2 Monate

gitlab CI mit deployment in der docker swarm Umgebung

Rolle
devOps
Einsatzort
Berlin
Projektinhalte

Update und Migration der Software auf neue Gitlab Umgebung,

Einrichtung der CI/CD Pipelines in Gitlab CI

Einrichtung dynamisch erstallten gitlab-runners skalier im Swarm

Einrichtung und Verbesserung der Docker Swarm Umgebung

Analyse, Verbesserung, Bugfixing und Optimierung der Vorhandenen Installation und Hardware Aufteilung inklusieve Netzwerkkomponenten

  

  

Kenntnisse

docker

docker swarm

pipeline

ci / cd

linux

Produkte

docker

docker swarm

gitlab

gitlab-runner

CI / CD

pipeline

KVM

Virtualisierung

Container

01/2018 - 06/2018

6 Monate

Data Center Migration, Software containerization, microservices, conceptual design SaaS & IaaS Environments

Rolle
IT Architect
Einsatzort
Berlin
Projektinhalte

main assignment (ITIL-based):

  • rework all the Software in to Container (Docker)
  • Automation pipelines
  • Deployment
  • re-orgonize all the Software into SaaS and IaaS based containerized environments
  • re-orgonize the multiple Software projects into microservices and deploy it automatically into Kubernetes Cloud (Bluemix)

Kenntnisse

linux

cloud

kubernetes

Monitoring

docker

Produkte

Ubuntu

kubernetes

Icinga

docker

04/2008 - 12/2017

9 Jahre 9 Monate

operations & DevOps at bild.de

Rolle
Senior System Administrator
Einsatzort
Berlin
Projektinhalte

over 3Bil PI / 20M Uniq Users monthly
unix- and linux systems, web-application engineering
Coremedia CMS: operation, administration, infrastructure
/ platform architecture / planning / relaunches / project supervising main assignment (ITIL-based):

  • Operation: problem, access, monitoring and incident management;
  • Transition: change, planning, deployment and configuration management;
  • Design: supplier, capacity and information security management;
  • DevOps: Infrastructure (jenkins-job, config as a code), Test automation,deployment integration devOps and infrastructure:
  • pipelines (Jenkins, Jenkinsfiles, groovy, DSL)
  • Test Driven Design
  • continuous delivery / continuous deployment / continuous integration applications and services in details:
  • SaaS
  • scaleable Architecture
  • ITIL
  • (IT) operation of enterprise online portals with satellite systems:
  • apache, tomcat, varnish, Akamai;
  • security, pentests, intrusion detection
  • Project Management
  • Scram / KANBAN
  • DevOps: deployment, different environments, cookbooks (chef), Jenkins
  • Coremedia:
  • enterprise of Coremedia CMS clusters,CMS updates / migration / relaunch
  • fine tuning of java JVM (example: gc settings)
  • performance tuning
  • trouble shouting (core files, mdb, gdb, java thread debugging, jvm tunning)
  • Database performance analyze & optimization (Oracle, Postgres)
  • advanced of database cluster administration (Oracle, Postgres)
  • CDN-administration: Akamai configuration
  • secondary systems:
  • WEB Caching
  • Jira / Clearspace / Confluence (HA Cluster)
  • projects
  • Virtual computing / Cloud Computing / Container based Infrasturcure
  • docker
  • libvirt / lxc
  • VM Ware / vCloud
  • vagrant / virtualbox (head less client mode for integration tests)
  • packer
  • Amazon AMI (EC2) instances :
  • reproduce the complete product System of BILD.de
    (Oracle DB; Coremedia CMS) in a Cloud
  • secondary projects with PHP:
  • nginX, Apache / PHP, SQL (mySQL, Postgres);
  • varnish, Apache / PHP, SQL (mySQL, Postgres);
  • monitoring systems:
  • splunk, graphite, graphana, collectd, SNMP, MRTG, Munin, Nagios,Zenoss
  • DNS administration;
  • CMS-administration (including user management strategy)
Kenntnisse

linux

DevOps

Optimierung

Produkte

CoreMedia

CentOS

linux

Jenkins

Chef

Akamai

09/2005 - 03/2008

2 Jahre 7 Monate

Database- and Software-developer.

Rolle
Unix-System engineer / administrator
Kunde
Malberg-EDV
Einsatzort
Leipzig
Projektinhalte

main assignment:

  • projects:
  • eye-Port (digital advertising)
  • developing of architecture, systems design and software developing of hight available solution for digital advertising
  • VOIP - IP-Telephony,
  • Statistical processing
  • network analysis and security architecture, DMZ, VPN, Firewall building
  • ISP-projects
  • online Application Hosting
  • HA and loadbalancing Cluster solution
  • Database administration and developing
  • II level IT support for bank of Leipzig „Sparkasse Leipzig“,
  • Distributed Systems
  • Oracle Clusters

08/2004 - 08/2005

1 Jahr 1 Monat

Systemadministrator bei „Malberg-EDV Systemberatung GmbH“

Rolle
Linux system- and database administrator
Kunde
intertemp Leipzig
Projektinhalte
  • assignment at „Malberg-EDV Systemberatung GmbH“
  • architecturing of HA Linux-Clusters
  • IP-telephony, LAN and DMZ design
  • network analysis and security architecturing
  • II level IT / DBA support of bank of Leipzig „Sparkasse Leipzig“

11/2003 - 07/2004

9 Monate

independent contractor

09/2001 - 06/2002

10 Monate

administration of complete Network

Rolle
Unix – Administrator
Kunde
mentaltec GbR
Einsatzort
Leipzig & Frankfurt am Main
Projektinhalte
  • various Client / Server systems with & database developing and administrating under mySQL and Oracle 9i
  • II & III level support in different projects for Deutsche Telekom
  • Backup

07/1999 - 12/1999

6 Monate

taking advance German language classes

Kunde
Herder Institut – Leipzig

10/1998 - 03/1999

6 Monate

taking base German language classes

Kunde
DEKRA – Akademie Chemnitz

11/1997 - 06/1998

8 Monate

Database developing

Rolle
IT – consultant
Kunde
RZ „Sojus“ / Kiev
Projektinhalte
  • Network- and system administration (Unix / Windows)

12/1993 - 10/1997

3 Jahre 11 Monate

Software and Database developer

Rolle
Software and Database developer
Kunde
National Technical University of Ukraine / Kiev

Kompetenzen

Aufgabenbereiche
Automatisierung, Pileliens
Jenkins, Gitlab-CI, Rundeck
Cloud
AWS, Bluemix, GCE, Azure
DevOps
Chef, Ansible, Rundeck
microservices
Konzepte, Container und Umsetzung
Virtualisierung
Docker, Kubernetes

Datenbanken
Databases NOSQL
MongoDB
Databases RDBMS
Oracle, Postgres, mySQL
Oracle, Postges, mySQL
sehr gut

Produkte / Standards / Erfahrungen
Administration Linux
Akamai
ansible
gut
Atlassian Confluence
Experte
Atlassian JIRA
Experte
Azure
Caching
Experte
Chef
compose
Container
Experte
CoreMedia
sehr gut
docker
Experte
docker swarm
gut
FirstSpirit
gitlab
Experte
gitlab-runner
Experte
Grafana
Graylog
Icinga
JBoss
Jenkins
JVM
Experte
kubernetes
sehr gut
KVM
gut
Liferay Portal
Monitoring
nginx
Experte
Open Shift
Optimierung
Experte
Prometheus
RunDeck
RZ Betrieb
Scrum
Tomcat
WildFly

system architecture:

online portals (with above 3 milliard PI monthly /100 mil PI daily)
CDN (Akamai), Cloud Computing,Content Caching (reverse proxy)

  • DevOps / infrastructure
  • deployment architecture
  • processes automation
  • pipelines
  • Continuous Delivery, Continuous Integration,
    Continuous Deployment, Blue-Green Deployment
  • software- and system scaling, planing
  • change management
  • cloud computing / virtualization
  • service transition / service design / service operations
  • problem management / trouble shouting / performance tuning
  • operations / establishment of high available systems using:
  • CMS:
    Coremedia CMS
    AEM (Adobe Experience Manager)
  • cloud Solutions (AWS, Google, Azure, Bluemix)
  • Dockerize everything
  • Container Orchestration with Kubernetes
  • Linux (redhat, debian, Kali, CoreOS)
  • Unix (Solaris, HP-UX)
  • DBMS: Oracle, Postgres, MS SQL Server
  • Application and database migration
  • searching: lucine, solr, elastic search, dpsearch
  • NoSQL: mongoDB
  • Cluster solutions
  • IT – security
  • High performance
  • Distributed Applications / Systems
  • Data center transition / migration, transformation
  • Cloud environments (AWS, Google, Bluemix, Azure)

VIRTUALIZATION SKILLS & EXPERIENCE
Docker container virtualization
Level: very strong


Kubernetes container orchestration

Level: very strong


LXC linux container
Level: strong


XEN hypervisior microkernel 
Level: good


KVM CPU with HW virtualisation extention 
Level: good


Solaris zone over 
Level: very strong


Virtual box diff OS, provioned for tests (TDD)
Level: very strong

OS SKILLS & EXPERIENCE
Linux debian, redhat (also CentOS) , suse, coreOS 
Level: very strong


Solaris v10, v11 
Level: very strong
HP-UX 11i 2 years
Level: good


Windows 95+ 
Level: good

Windows NT 2000+ 
Level: good


Mac OS snow leopard 
Level: good

SKILLS & EXPERIENCE IN SCRIPTING
Shell standard unix way
Level: very strong


Perl extended unix knowledge (reg ex) 
Level: good


SQL / PL SQL database Design 
Level: very strong

java 3+ 
Level: good


PHP, ruby, python, groovy

Level: strong

DEVOPS SKILLS & EXPERIENCE
Chef, Ansible Config-managent 
Level: strong


Jenkins, pipeline automation 
Gitlab-CI Level: very strong


Kubernetes 1.4+ 
Level: strong


Service design / Architecture 
Level: good


micro-servises Design / Architecture
Level: good

PROFESSIONAL KNOWLEDGE
Agile processing: Scram / KANBAN
Project management: PMI
IT Service management: ITIL-BASED

Operation systems:

  • Unix: Sun Solaris (8-11), Linux, HP-UX 11.0/11i, AIX, openSolaris
  • Linux: Redhat, CentOS, Fedora, Debian / Ubuntu, SUSE
  • Windows (NT, 2000, 10)

Cloud:

  • AWS
  • Google
  • Bluemix (IBM)


Container Orchestration:

  • Kubernetes
  • also Cloud solutions like Bluemix Cloud (IBM)Unit testests / Integration tests:
  • kitchen (opscode ruby), vagrant,

Deployment:

  • test driven deployment
  • blue-green deployment
  • Continuous Delivery, Continuous Deployment
  • Test Driven Deplyoment

DevOps:

  • Jenkins Jobs (DSL, Jenkinsfile – config as a code)
  • GitLab-CI – yaml-based trivial multipipeline jobs
  • Docker Container (Images, Container, deployment, systemD)
  • vagrant / Packer (integration tests)
  • Automated Deplyoment
  • Configuration Management (chef, ansible, pappet)

Administration:

  • network services: DNS, DHCP, DDNS, FTP, NTP, Mail, Proxy, WEB,
  • WEB- Application Server (Apache, nginx, tomcat, FastTrack von Netscape,Jboss, IIS,)
  • Networking, routing, VPN, bridging
  • Data sharing with: NFS, Samba, sshfs, DFS
  • Backup with: TSM, Networker, OmniView, Amanda
  • user management: local, Directory-services (LDAP, Kerberos, AD)
  • further services and projects:
  • ZFS/zpool, LVM, SoftwareRAID,
  • .rpm, HP-UX .depot and Solaris .pkg creation etc.
  • administration of network devices by using of SNMP (Cisco, Mediatrix)
  • IP – Telephony:
  • SIP / H323 / IAX (Asterisk, Pingtel, SipExchange, Cisco, Clarity)
  • Cluster solution:
  • high availability: HPUX – Cluster (MC/Guard), Linux-Cluster (HeartBeat +DRBD), Networkbonding
  • high performance: Mosix (OpenMosix)
  • Load Balancing (ipvs, sowie auf der DNS Ebene)
  • mixed Cluster solution
  • security solution with:
  • SSH, SSH mit chroot-Umgebung
  • VPN (OpenVPN, PPTP, IPSec),
  • FireWall (iptables, ipchaince)
  • IDS
  • high performance solution for DMZ and office:
  • accelerating / ReverseProxy – Varnish, Squid
  • Proxy with AV-check “on-the-fly“
  • Security check:
  • Scanner: nmap, netcap, Nessus
  • Monitoring: ethereal, tcpdump, ksnuffle

Database attainment:

Database administration and Database developing:

  • Oracle 8i, 9i (Oracle certificated), 10g, MS SQL Server 2000
  • PostgreSQL, mySQL, Access, dBase

Software developing:

  • PHP (OOP, Pear, Pecl), Java, JSP, XML, Perl
  • VBA (Access), Delphi, Pascal, Clipper, dBase


Version control systems:

  • CVS, SVN (Subversion)


WEB – Design with SSI-Sprachen:

  • PHP, JSP / java Servlets, Perl


Security Specialist:

  • Penetration Tests


other IT knowledges:

  • Shell - Scripting: PHP, Shell, AWK, Perl
  • Program languages: PHP, Java, Delphi, VBA
  • SQL (several SQLs):
  • PL/SQL (Oracle),
  • pl/pgsql (PostgreSQL),
  • transact SQL (MS SQL)

Design / Entwicklung / Konstruktion
CI / CD

Berechnung / Simulation / Versuch / Validierung
pipeline
Jenkins, Gitlab-CI, Rundeck

Betriebssysteme
CentOS
linux
Ubuntu

Ausbildungshistorie

STUDY
09/1992 – 02/1998

National Technical University of Ukraine Kiev

  • computer based modeling, mathematical controlling and simulating
  • degree „Engineer of Computer–Chemistry (Computer-chemist)“

ADVANCED TRAINING / WORKSHOPS / CERTIFICATIONS
2014

several trainings in communication and staff Berlin

2012-2013

advanced training: Project-Management (PMI like) Berlin


2012-2013

advanced training: Financial-Management in IT Berlin


2012

certified: ITIL® V3 – Foundation Berlin


12.2011

workshop: HTML 5 Berlin


09.2011

advanced training: Akamai Integration Training Berlin
integration of online portals / site acceleration


02.2011

workshop: Coremedia Developer Conference Hamburg
Coremedia AG


08.2008

certified: Coremedia engenieer Hamburg
„Coremedia Administration“ Coremedia AG


09.2007

advanced training: hacking via.solution

  • innumerable security aspect of UNIX-administration
  • possible intrusion points


10.10.03

certification to Oracle OCA Oracle Corporation


10.2002 – 10.2003

advanced training to Oracle OCP / OCA IAD Leipzig
(Oracle DBA / Developer)

  • database developing, -administration, -backup


06.2000 – 09.2001

advanced training to CDI Leipzig
„Administrator of „heterogeneous“ Networks“ including 2 practical monthes at mentaltec GbR

  • Administration of Novell 5.x; Windows 2000; Linux / Unix.