René Schmidt
Digital Sales Systems Department
Experience
Apr 2021 - May 2021
2 months Rostock, Germany
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CiS GmbH (Rostock, via DIEPA GmbH)
- Built a greenfield CRM to manage incoming customer requests for a municipal utility
- Used PHP/Symfony v5 with EasyAdmin, Doctrine ORM and Oracle XE
- After initial setup, handed over to CiS GmbH as planned
Apr 2019 - Jun 2022
3 years 3 months Hamburg, Germany
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E.ON SE (Hamburg, via Michael Bailey Associates Deutschland)
- Software development (frontend and backend) for a Ruby on Rails & Postgres application to manage municipal concessions
- Coordinated operations
- Integrated OIDC Ping ID with JWT and PKCE
- Introduced static code analysis with SonarQube
- Increased test coverage to ~95%
Feb 2018 - Dec 2019
11 months Hamburg, Germany
Digital Sales Systems Department
Gruner+Jahr (Hamburg, via Hays AG)
- Developed a REST API web service interface between the single sign-on system and the MAPP Customer Engagement Platform (formerly Teradata Digital Marketing Center/DMC) (PHP, MySQL, Symfony, Doctrine, PHPUnit, Linux, REST API)
- Designed a new test concept, refactored unit and functional tests (PHPUnit), developed and introduced unit testing middleware, consulting; reduced test suite runtime by 60%–99%
- Implemented event tracking with Amazon AWS SQS (message queuing)
- Made all code PHP E_STRICT compatible
- Led the migration from PHP 5.3 to 5.4
- Prepared and supported migration to Symfony 2.8
- Introduced Doctrine Fixtures to simplify database provisioning for unit and functional tests
- Strong Scrum and Kanban orientation (“Scrumban”)
- Developed an AWS Lambda worker in Java to send SQS messages via the Measurement Protocol to Google Analytics (EDI)
- Developed Java and PHP OAuth2 SDKs for SSO tenants
- Extensive refactoring of the reseller interface
- Database optimization
- Developed a content security policy concept
- Microservice refactoring
- Developed load tests with Apache JMeter and Docker
- Introduced static code analysis with SonarQube
Sep 2015 - Jul 2017
1 year 11 months Hamburg, Germany
Digital Sales Systems Department
Gruner+Jahr (Hamburg, via Hays AG)
- Developed a REST API web service interface between the single sign-on system and the MAPP Customer Engagement Platform (formerly Teradata Digital Marketing Center/DMC) (PHP, MySQL, Symfony, Doctrine, PHPUnit, Linux, REST API)
- Designed a new test concept, refactored unit and functional tests (PHPUnit), developed and introduced unit testing middleware, consulting; reduced test suite runtime by 60%–99%
- Implemented event tracking with Amazon AWS SQS (message queuing)
- Made all code PHP E_STRICT compatible
- Led the migration from PHP 5.3 to 5.4
- Prepared and supported migration to Symfony 2.8
- Introduced Doctrine Fixtures to simplify database provisioning for unit and functional tests
- Strong Scrum and Kanban orientation (“Scrumban”)
- Developed an AWS Lambda worker in Java to send SQS messages via the Measurement Protocol to Google Analytics (EDI)
- Developed Java and PHP OAuth2 SDKs for SSO tenants
- Extensive refactoring of the reseller interface
- Database optimization
- Developed a content security policy concept
- Microservice refactoring
- Developed load tests with Apache JMeter and Docker
- Introduced static code analysis with SonarQube
Oct 2013 - Dec 2023
10 years 3 months Stuttgart, Germany
Blog, Forum and Wiki Service
Mercedes Benz AG (Stuttgart, via Harvey Nash and Andemis)
- Web application management; frontend and backend development for WordPress, plugin development (+ Linux sysadmin)
- Built applications and components, coding in PHP, CSS optimization, Twitter Bootstrap, LESS, HTML5, JavaScript, customizations per internal specs
- Migrated WordPress 3.x to 4.x to 5.x
- Consulting and support for internal blog and forum users
- Handled incidents and requests
- Managed and implemented test cases and documentation using Postman and a custom Go-based system
- Conducted LAMP security reviews
- Developed a REST API server in Go (& OpenAPI, Swagger) for automatic user account deprovisioning
- Maintained the CA single sign-on plugin (SSO, Ping ID) for WordPress (previously CA SiteMinder) and Apache httpd (WebAgent)
- Bash shell scripting, database sync with Oracle and Confluence
- Administered Piwik/Matomo web analytics (+ Linux sysadmin)
- Managed Icinga monitoring (+ Linux sysadmin)
- Operated and administered Atlassian Confluence 4.3 and 5.8
- Worked by Scrum principles
- Prepared and executed Ansible introduction (DevOps)
- Integrated OIDC Ping ID with a proprietary entitlement management system, developed test cases, enhanced the integration
Oct 2010 - Jul 2013
2 years 10 monthsRIA Developer (Freelancer)
Adternity GmbH
- Developed for online advertising platforms in PHP and JavaScript (Symfony, Doctrine, MySQL, ExtJS, CSS)
- Created XML exporters and REST EDI interfaces to Basecamp, address data verification and client CMS
- Wrote XML importers for ad campaigns
- Developed parts of the ExtJS web GUI
- Wrote PHPUnit and Siesta tests
- Administered Jenkins server for CI and automated unit testing
- Conducted static code analysis with PHP CodeSniffer
Sep 2007 - Mar 2008
7 monthsYUI RIA Frontend Developer (Freelancer)
Pixelpark Solutions GmbH (now Conasoft Solutions GmbH)
- Developed a rich web application frontend based on HTML/CSS/JavaScript/YUI Framework with tight integration to an Apache Struts backend via XML-RPC
Jan 2007 - Aug 2010
3 years 8 monthsFreelancer for WordPress/Web Server Development, Administration, Operations, Software and Frontend Developer
Smashing Media GmbH (& DrWeb.de)
- Freelance work for Smashing Magazine, Dr. Web and Noupe
- Managed ~700 million HTTP requests/month, ~30 TB/month
- Responsible for performance optimization (HTML, CSS, JavaScript)
- Responsible for server optimization (Apache, Varnish, MySQL)
- Developed a paywall based on CodeIgniter
- Implemented a paywall bridge to a Magento shop via XML-RPC
- Set up Varnish servers and integrated into a high-traffic WordPress environment
- Built a custom CRM
- Administered Magento shops (installation, payment systems like PayPal and Worldpay)
- Developed Magento plugins
- Developed WordPress plugins (workflow optimization, SEO, refactoring third-party plugins and security patches, alternative search plugin based on Apache Lucene)
- Converted 3000 static HTML pages to WordPress posts via script for site relaunch
- Worked by Scrum principles
Mar 2005 - Aug 2010
5 years 6 monthsEditor (Freelancer)
Smashing Media GmbH (& DrWeb.de)
Dec 2001 - Jan 2002
2 months Germany
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161MEDIA Deutschland GmbH
Dec 2001 - Jan 2002
2 months Germany
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Commindo Media GmbH
Dec 2001 - Jan 2002
2 months Norway
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Mediebruket AS
Dec 2001 - Jan 2002
2 months Germany
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Medienzentrum Schlichtmann und Werk GmbH & Co. KG
Dec 2001 - Jan 2002
2 months Netherlands
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P.I.T Partner Internal Transport Netherlands
Feb 2001 - Nov 2001
10 monthsTechnical Project Manager, Supervisor
nikotel AG
- Developed the customer portal
- Implemented the portal for VOIP users based on SixCMS
Apr 2000 - Jan 2001
10 monthsWeb Developer, Junior Technical Project Manager
Tiscali AG (formerly nikoma MediaWorks GmbH)
- Developed interfaces between CMS and news providers like dpa, e.g. for sports events like Formula 1 and the Olympic Games
Summary
- PHP/Symfony, Ruby on Rails: developing dynamic web applications (also single-page applications)
- OAuth2 & OpenID Connect (OIDC) integration in an enterprise environment: Ping ID, Azure, including multi-factor authentication, JWT and PKCE
- Linux web server administration (Apache, nginx, Varnish, MySQL/MariaDB, Ansible, DevOps)
- CI/CD pipelines (continuous integration, continuous delivery) using Jenkins, Bamboo, GitLab CI, Gitea/Forgejo and GitHub Actions
- Test automation: PHPUnit, Postman
- Frontend development, rich interactive web applications with JavaScript/AJAX, jQuery, ExtJS, Bootstrap
- Developing REST API servers with Go, OpenAPI (Swagger)
- Experience integrating web frontends via middleware with XML-RPC or JSON
- Developing modules and plugins for WordPress and Magento
Languages
German
Native
English
Advanced
Education
Oct 2008 - Jun 2010
FernUniversität Hagen
Business Informatics · Germany
Oct 2003 - Jun 2006
FernUniversität Hagen
Computer Science · Germany
Oct 1999 - Jun 2000
Staatliche Gewerbeschule Ernährung und Hauswirtschaft Brekelbaums Park
Technical School Diploma (Fachabitur) · Social Pedagogy · Hamburg, Germany
Certifications & licenses
TeleTrusT Information Security Professional (TISP/T.I.S.P.)
Bundesverband IT-Sicherheit e.V. (TeleTrusT)
TeleTrusT Information Security Professional (TISP/T.I.S.P.)
Bundesverband IT-Sicherheit e.V. (TeleTrusT)
Business Process Modeling and Analysis
OpenHPI
In-Memory Data Management
OpenHPI
LPIC-1
Linux Professional Institute
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