Personal Details

Name

Per Bernhardt

Born on

27 April 1984, Siegburg, Germany

Gender

male

Nationality

German

Address

Rotdornweg 15
53177 Bonn
Germany

Phone

+4916094949894

Email

info@perprogramming.de

Professional Experience

2019 - present

Staff Software Engineer
LeanIX GmbH, Bonn, Germany
In 2019 I joined LeanIX to be part of the platform operations team.

Interesting projects:

• Platform Operations
  We make sure our product teams keep running their services on Kubernetes in Azure.
  Project started: 2019
  Keywords: Azure Cloud, Kubernetes, Docker, Java, Dropwizard, Angular, Kafka, Elasticsearch, Ansible
  
  

2015 - 2019

Software Architect
Chefkoch GmbH, Bonn, Germany
Since I started at chefkoch.de I took part in or led a number of projects and teams in their engineering department. Overall I played a major role in a successful long-term transformation from a slow-iteration software development workflow in a monolithic application running on bare metal towards a rapid CI/CD workflow of microservices running on a kubernetes container cluster.

Interesting projects:

• DevOps & Refactoring our infrastructure
  In January 2018 I was one of two colleagues from Software Development that joined our ops team. Our mission was to finalize the transition to Kubernetes and get rid of all servers that were not running containers. That also ment refactoring all remaining applications (monoliths & microservices) to run in Kubernetes. We also introduced a complete new monitoring and logging setup based on Filebeat, Prometheus, Grafana and ElasticStack (ELK). We are currently looking into how cloud computing can further improve our operations.
  Project started: 2018
  Keywords: Kubernetes, Docker, Docker-Compose, ELK, Prometheus, Ansible
  
  
• Introducing Google Analytics
  In summer 2017 I led a Scrum development team as "Technical Product Owner". One of our greater epics was to move all tracking at Chefkoch from WebTrekk to Google Analytics. One goal of this transition was to reduce inconsistencies in the tracked data as we heavily rely on them for our sales customers. We quickly designed and launched a static Javascript middleware that contained all logic to map information from our HTML web pages to Google Analytics. The middleware was written in a testdriven approach to ensure complete test coverage of all mapping logic. Se setup also included a logging solution enabling us to see any mapping errors happening within the browser of our users.
  Project started: 2017
  Keywords: JavaScript, Google Analytics, Docker, Kubernetes, ELK
  
  
• Migrating a self-written CMS to an open-source solution (Drupal)
  In early 2016 I was part of a new Scrum development team. Its mission was to migrate all editorial content from some self-written CMS to an open-source solution (Drupal). The project was quite difficult as it also included a complete UX/UI redesign of the content and some new native sales products on top of it. We managed to launch the new CMS to our Kubernetes cluster in about 11 month. As Drupal is quite slow performance-wise, the setup included sophisticated caching based on Redis (backend) and Varnish (HTTP).
  Project started: 2016
  Keywords: PHP, Drupal, MariaDB, Varnish, Redis, Kubernetes, Docker
  
  

2013 - 2015

Senior Software Developer
Chefkoch GmbH, Bonn, Germany
Since I started at chefkoch.de I took part in or led a number of projects and teams in their engineering department. Overall I played a major role in a successful long-term transformation from a slow-iteration software development workflow in a monolithic application running on bare metal towards a rapid CI/CD workflow of microservices running on a kubernetes container cluster.

Interesting projects:

• Introducing Docker & Kubernetes
  In 2014 Chefkoch decided to move towards a Microservice architecture. Right at the same time Docker arrived and we thought it is a perfect match. After some initial experiments on how to run PHP-based web applications in containers and orchestrating them with CoreOS' Fleet, we felt a need for a more flexible orchestration solution. We finally decided for Kubernetes and launched our first microservice to a production cluster, just days after Kubernetes 1.0 was released in July 2015.
  Project started: 2015
  Keywords: Docker, Fleet, Kubernetes
  
  
• Establishing Scrum Methodology
  I was part of the first development team at Chefkoch that used Scrum as their new development approach.
  Project started: 2014
  Keywords: Scrum
  
  
• Introducing a new REST API for mobile apps
  New mobile apps launched in February 2014 needed a fresh REST API to get their data from. We used this API to introduce the Web Application Framework Symfony2 to the company. It was also the first project at Chefkoch were automated tests and Continuous Integration were used.
  Project started: 2013
  Keywords: PHP, MariaDB, Nginx, Symfony2, Solr, Doctrine2, Varnish
  
  

2013

Senior Software Developer
STARTPLATZ, Cologne, Germany
Consulting and Technical Support for startups in Cologne area

Interesting projects:

• Golfpost - New Setup on Symfony2
  
  Project started: 2013
  Keywords: PHP, MySQL, Apache2, Wordpress => Symfony2
  
  

2005 - 2013

Senior Software Developer
webfactory GmbH, Bonn, Germany
Development of webfactory's software platform and infrastructure, running in Amazon Web Services cloud; software analysis, architecture and design for long-term customer projects

Interesting projects:

• SIZ webbased audit
  Web application for implementing IT security audits in large-scale organisations for our customer SIZ - IT Products and Consulting.
  Project started: 2011
  Keywords: PHP, MySQL, Apache2, IIS, MSSQL, ZendFramework, Doctrine2
  
  
• Youthpass
  Web application generating PDF certificates for participants of the EU Youth in Action Programme, available in 28 languages.
  Project started: 2007
  Keywords: PHP, MySQL, Apache2, Amazon AWS, Multilingual, Apache FOP, Propel, Symfony2
  
  
• Federal Joint Committee
  The Federal Joint Committee (G-BA) is the highest decision-making body of the joint self-government of physicians, dentists, hospitals and health insurance funds in Germany.
  Project started: 2006
  Keywords: PHP, MySQL, Apache2, Amazon AWS, Twig, Propel, Symfony2, Apache Solr
  
  

2001 - 2005

Entrepreneur
Sinfin EDV, Bonn/Rhein-Sieg, Germany
IT services, e.g. network and workstation administration in small business and home environments, hardware and software retail, web design and application development

2000

Trainer
Forum Neunkirchen, Neunkirchen-Seelscheid, Germany
Preparation and implementation of computer training classes for children aged 4 to 12 years

Skills

Methodologies

• Infrastructure As Code
• Containers
• Continuous Integration & Delivery
• Cloud Computing
• Software Engineering
• Test Automatisation
• Lean & Agile Development
• Web Development

Techniques

• Application Frameworks
• Object-Relational Mapping (ORM)
• HTTP
• Web Caching
• REST
• API Development
• SQL
• CSS
• OAuth
• Scrum
• Kanban

Tools

• Kubernetes
• Docker
• Prometheus
• Grafana
• ELK
• AWS
• GCP
• Azure
• HetznerCloud
• Terraform
• Puppet
• Chef
• Ansible
• Ant
• Linux
• Git
• Vagrant
• Gitlab
• Bitbucket
• Bamboo
• Jira
• Confluence
• Solr
• Varnish
• Nginx
• Apache
• Redis
• Google Analytics

Programming Languages

• PHP
• Java
• Go
• Javascript

Education

2013

SensioLabs Certified Symfony Developer
SensioLabs, Cologne, Germany
The SensioLabs Symfony2 Framework certification exam is an industry standard to help developers distinguish themselves and emphazise their skill towards IT companies

2007 - 2015

Computer Science (B.Sc.)
Bonn-Rhein-Sieg University of Applied Sciences, Sankt Augustin, Germany
Part-time bachelor degree studies in Computer Science, specialization "Complex Software Systems", Average Grade 2.2

2005 - 2007

Vocational Qualification "Qualified IT Specialist"
Industrie- und Handelskammer Bonn/Rhein-Sieg, Germany
Average grade: 2.0

2005 – 2007

Vocational School Graduation
Heinrich-Hertz-Berufskolleg, Bonn, Germany
School-related part of the vocational qualification "Qualified IT Specialist", Average grade: 1.1

1994 - 2003

General Qualification for University Entrance (Abitur)
Antonius Kolleg Neunkirchen, Neunkirchen-Seelscheid, Germany
Average grade: 1.5

Further Education

30 September 2014

AngularJS-Workshop
Trainer: Sebastian Mancke
Bonn, Germany

05 March 2012

Creating Mobile apps with jQuery Mobile
Trainer: Maximiliano Firtman
London, United Kingdom

20 October 2011

Build your own framework... based on the Symfony2 components
Trainer: Fabien Potencier
Cologne, Germany

8 March 2011

Designing Software, Drawing Pictures
Trainer: Simon Brown
London, United Kingdom

1 March 2010

Advanced Javascript
Trainer: Paul Bakaus
Wiesbaden, Germany

January - June 2008

CCNA 4 WAN Technologies
HHB Bonn, Germany

29 June 2007

The Secret of Effective Teams: Agile, Discipline, Focus
Trainer: Alistair Cockburn
Bonn, Germany

April - August 2007

CCNA 3 Switching Basics and Intermediate Routing
HHB Bonn, Germany

March - July 2006

CCNA 2 Router and Routing Basics
HHB Bonn, Germany

October 2005 - February 2006

CCNA 1 Network Basics
HHB Bonn, Germany

Speaker

2017

Magazin-Relaunch bei Chefkoch
G+J Headquarters, Hamburg
A talk on how continuous delivery helped us migrating our editorial content into an open-source solution (Drupal) running on Kubernetes.
https://www.slideshare.net/perprogramming/magazinrelaunch-bei-chefkoch

2016

Contract Tests mit Pact
Microservice Meetup, Bonn
This talk shows how Contract Testing with Pact eases microservice development.
https://www.slideshare.net/perprogramming/contract-tests-mit-pact

2016

Chefkoch goes Drupal8
Code Talks 2016, Hamburg
A talk on how we migrated our editorial content from a self-written CMS to an open-source solution (Drupal).
https://www.slideshare.net/perprogramming/chefkoch-goes-drupal8

2016

Umzug eines Hochlast-Dienstes
Code Talks 2016, Hamburg
A talk on how we moved a high traffic Solr-based site search from bare metal to containers running on Kubernetes.
https://www.slideshare.net/perprogramming/umzug-eines-hochlastdienstes

2016

kubernetes @ Chefkoch.de
Kubernetes Meetup, Cologne
A talk on how we introduced Docker & Kubernetes at Chefkoch.
https://www.slideshare.net/perprogramming/kubernetes-chefkochde-kubernetes-meetup-cologne

2015

Kubernetes: Wie Chefkoch.de mit Containern arbeitet
Symfony Live 2015, Berlin
A talk on how we introduced Docker & Kubernetes at Chefkoch.
https://www.slideshare.net/perprogramming/kubernetes-wie-chefkochde-mit-containern-arbeitet

2015

Microservice-Teststrategie mit Symfony2
Code Talks 2015, Hamburg
Talk on how to apply a teststrategy on microservices in PHP / Symfony2.
https://www.slideshare.net/perprogramming/microservice-teststrategie-mit-symfony2

2014

Continuous Integration & Delivery with Bamboo
Chefkoch GmbH, Bonn
A short introduction to Continuous Integration and Continuous Delivery with Bamboo.
https://www.slideshare.net/perprogramming/bamboo-32118880

2014

Application Layer in PHP
Symfony User Group, Cologne
Talk on a possible way to implement "Layered Architecture" (Martin Fowler) in PHP / Symfony2.
https://www.slideshare.net/perprogramming/application-layer-33335917

2013

Anwendungsintegration mit Edge Side Includes
Symfony User Group, Cologne
Talk on how to integrate different applications on HTTP level using Edge Side Includes
https://www.slideshare.net/perprogramming/anwendungsintegration-mit-edge-side-includes-29350496

Extra-professional Activities

2013 - present

"Die feinen Herren"
Bonn, Germany
Playing the card game "Skat"

2008 - 2014

Foosball Player
Kicker Crew Bonn, Germany
Club member, team member, league player, substitute trainer and website administrator

2009 - 2010

Referee (Association Football)
German Football Association, Rhein/Sieg, Germany
Supervision of regional association football games

2000 - 2003

Organising Committee
Antonius Kolleg Neunkirchen, Neunkirchen-Seelscheid, Germany
Event management and event technology for school events

1994 - 2003

Students Council
Antonius Kolleg Neunkirchen, Neunkirchen-Seelscheid, Germany
Class and students representative

Miscellaneous

Languages

• German (native)
• English (fluent)

Interests

• Card Games
• Foosball
• Hiking
• Fitness Studio

About this page

This page is hosted on github:pages.

It has been built using the following tools:

• PHP
• Sculpin
• Symfony Components
• Composer
• Twitter Bootstrap
• PhpStorm

The source code can be found on github.