Mario Steiner - Expert in Web Analytics, Tag and Consent Management

Q: Where is Mario based?

Mario is based in Frankfurt am Main, Germany .

Q: What languages does Mario speak?

Mario speaks the following languages: German (Native), English (Advanced), Spanish (Elementary), French (Elementary) .

Q: How many years of experience does Mario have?

Mario has at least 17 years of experience. During this time, Mario has worked in at least 8 different roles and for 16 different companies . The average length of individual experience is 1 year and 11 months . Note that Mario may not have shared all experience and actually has more experience.

Q: What is Mario's latest experience?

Mario's most recent position is Expert in Web Analytics, Tag and Consent Management at Deutsche Bahn AG .

Q: What companies has Mario worked for in recent years?

In recent years, Mario has worked for Deutsche Bahn AG , Vertilas GmbH , Jadeva GmbH , Deutsche Hypothekenbank , and bellavista-madrid.com .

Q: Which industries is Mario most experienced in?

Mario is most experienced in industries like Information Technology (IT) , Banking and Finance , and Transportation and Logistics . Mario also has some experience in Professional Services , Telecommunication , and Insurance .

Q: Which business areas is Mario most experienced in?

Mario is most experienced in business areas like Information Technology (IT) , Business Intelligence , and Marketing . Mario also has some experience in Product Development and Project Management .

Q: Which industries has Mario worked in recently?

Mario has recently worked in industries like Information Technology (IT) , Transportation and Logistics , and Banking and Finance .

Q: Which business areas has Mario worked in recently?

Mario has recently worked in business areas like Information Technology (IT) , Business Intelligence , and Project Management .

Recommended expert

Frankfurt am Main, Germany

Experience

Sep 2021 - Present

4 years 6 months

Expert in Web Analytics, Tag and Consent Management

Deutsche Bahn AG

Conducting and analyzing web analytics
Creating and editing tags and scripts in tag management as well as banners and other client-side web elements in consent management
Technologies used in development: Tealium, JavaScript, IntelliJ, Git, Android Studio, Selenium, Appium, Adobe Analytics, Power Automate, Power App

Jul 2021 - Dec 2022

1 year 6 months

Munich, Germany

IT consulting as web developer (back end / front end)

Vertilas GmbH

Website – hosting and maintenance
Further development using TYPO3 CMS (version 10.x) and TypoScript
Technologies used in development: TYPO3, TypoScript, HTML5, CSS3, Photoshop, Microsoft Teams

Jan 2021 - Jun 2021

6 months

Stuttgart, Germany

Permanent position as Java developer

Jadeva GmbH

In-house projects and training in Java
Technologies used in development: Java, Spring, Maven, Eclipse, Git
Technologies used in project management: Jira, Zoom and Scrum

Feb 2020 - Dec 2020

11 months

Stuttgart, Germany

Permanent position as Java developer

Jadeva GmbH

Support in the technical implementation of insurance-specific functional requirements (focus on BiPRO) in the Java environment
Technologies used in development: Java, Spring, Groovy Script, SoapUI, Postman, Eclipse, Git
Technologies used in project management: Jira, Confluence, Slack and Scrum

Jun 2017 - Feb 2021

3 years 9 months

Hanover, Germany

IT consulting as technical writer

Deutsche Hypothekenbank

Post-documentation of software applications, technical description of software architectures and their implementation regarding front end and connected back end and DB systems
Technologies used for documentation: Microsoft Word, Microsoft Excel, Microsoft SharePoint, Microsoft Access (code analysis and evaluation)
Technologies used in project management: IBM Notes, Microsoft SharePoint

Jun 2016 - Mar 2018

1 year 10 months

Kronberg, Germany

IT consulting as Front End Developer

FIL Investment Services GmbH

Support and consulting in maintaining and further developing client websites (mobile and desktop) using web technologies
Technologies used in development: HTML5, CSS, JavaScript (OOP), jQuery, Backbone, Marionette, Handlebars, Require, Git
Technologies used in project management: JIRA, Lync, Scrum and Kanban

Apr 2015 - May 2016

1 year 2 months

Karlsruhe, Germany

IT consulting as Front End Developer

1&1

Editing websites and adjusting XML/HTML templates in campaign business and strategy projects
Technologies used in development: HTML5, CSS, JavaScript (OOP), jQuery, XML, XSL/XSLT, NetBeans, SVN, Maven, Tortoise, Linux/Ubuntu
Technologies used in project management: JIRA, Skype

Oct 2014 - Jan 2015

4 months

Karlsruhe, Germany

IT consulting as Front End Developer

1&1

Editing websites and adjusting XML/HTML templates in campaign business and strategy projects
Technologies used in development: HTML5, CSS, JavaScript (OOP), jQuery, XML, XSL/XSLT, NetBeans, SVN, Maven, Tortoise, Linux/Ubuntu
Technologies used in project management: JIRA, Skype

Jul 2014 - Sep 2014

3 months

Frankfurt, Germany

Permanent position as Front End Developer

Zum Goldenen Hirschen

Creation of advertising materials, responsive landing pages, newsletters and emails for marketing campaigns according to client requirements (Fiat, hr3, Continental)
Technologies used in development: HTML5, CSS3, JavaScript (OOP), jQuery, PHP5, WordPress, Flash/ActionScript, Photoshop, InDesign, Apple Mac

Apr 2014 - Jul 2014

4 months

Kronberg, Germany

IT consulting as Front End Developer

WebDirekt Internet Service GmbH

Creation of client websites based on templates and the Smooster CMS, template revisions, responsive web design
Technologies used in development: HTML5, CSS3, Bootstrap, JavaScript, jQuery

Feb 2014 - Mar 2014

2 months

Düsseldorf, Germany

IT consulting as Front End Developer

TBWA e-graphics

Created the basic layout – responsive web design for a new client website (HTML5-based web app)
Technologies used in development: HTML5, CSS3, jQuery, Photoshop, Apple Mac, Dreamweaver

Aug 2013 - Oct 2013

3 months

Giessen, Germany

Permanent position as Front End Developer

EOL GmbH

Supported the web development team in refactoring and relaunching the quicker.com platform, focusing on responsive web design and using Kanban within the team
Technologies used in development: HTML5, CSS3, Bootstrap, LESS, PHP5 (OOP), Zend Framework, Grunt, SVN
Technologies used in project management: JIRA, Scrum, Kanban

Mar 2013 - Mar 2013

1 month

Neu-Anspach, Germany

IT consulting as Front End Developer

BBS – Kneis

Created the basic layout design according to client requirements for converting an Excel-based software into an online platform
Technologies used in development: HTML5, CSS3, Photoshop, FlairBuilder

Feb 2013 - Feb 2013

1 month

Neu-Anspach, Germany

IT consulting as Front End Developer

BBS – Kneis

Reworked an existing website's navigation by creating a JavaScript-based navigation to replace the previous Java-based one
Technologies used in development: HTML5, CSS, Photoshop, JavaScript, jQuery

Sep 2012 - Feb 2013

6 months

Mannheim, Germany

IT consulting as Front End Developer

Buhl

Adjusted the front end of a Flash-converted website for user inputs and tested the changes
Explored and tested solution approaches to the site's performance issues
Technologies used in development: HTML5, CSS, Photoshop, JavaScript (OOP), jQuery

Jul 2012 - Oct 2014

2 years 4 months

Munich, Germany

IT Consultant as Front End Developer

UniCredit Bank AG

Assisted in redesigning the intranet platform, data maintenance and creating new dummy containers for content
Created content elements, image files, PDF-based Flash files, PDFs from Excel templates and text entries
Technologies used in development: HTML, CSS, Photoshop, ezPublish, Opus Creator, Flip PDF Pro, Flash/ActionScript

Jan 2012 - Oct 2014

2 years 10 months

Frankfurt, Germany

IT Consultant as Front End Developer

LHW Ltd.

Created monthly newsletter templates and various text and HTML versions for six languages
Edited images for sending text and HTML-based newsletter emails
Technologies used in development: HTML, CSS, Photoshop

Sep 2011 - Jun 2012

10 months

Hanover, Germany

IT Consultant as Front End Developer

Netrada

Assisted in web publishing and front end work: updated content elements and maintained data
Modified and updated front end templates
Technologies used in development: HTML, CSS, JavaScript, PHP, Ultra Edit
Technologies used in project management: JIRA

Feb 2009 - Dec 2024

15 years 11 months

Madrid, Spain

IT Consultant as Web Developer (Back End / Front End), side project

bellavista-madrid.com

Website – hosting, maintenance and further development using TYPO3 CMS (version 10.x) and Typoscript
Technologies used in development: TYPO3, Typoscript, Contao, HTML5, CSS3, JavaScript, Photoshop, Freshdesk, Yodiz, MeisterTask, Skype

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (16 years), Banking and Finance (7 years), Transportation (4.5 years), Professional Services (3 years), Telecommunication (1.5 years), and Insurance (1 year).

Information Technology

Banking and Finance

Transportation

Professional Services

Telecommunication

Insurance

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (17 years), Business Intelligence (4.5 years), Marketing (3 years), Project Management (2.5 years), and Product Development (2.5 years).

Information Technology

Business Intelligence

Marketing

Project Management

Product Development

Summary

State-certified computer scientist
Scrum Master I
Current key skills: Web & Front End Development, Tag & Consent Management
Work experience in eCommerce, agency environments, banking

Skills

It Experience Since 2001
Industries: Banking, Insurance, It Services
Operating Systems: Apple (Macos), Linux/unix, Windows
Frameworks: Angular, Vue, Bootstrap, Cordova, Ionic, Less, Sass, Node.js
Cms: Contao, Ezpublish, Hp Teamsite, Typo3 Cms, Typo3 Neos, Wordpress
Programming Languages: Java, Javascript, Php, Vba
Methods & Tools: Spring Boot, Apache Web Server, Css3, Html5, Kanban, Ms Access, Mysql, Powershell, Scrum, Tomcat, Uml, Xml, Dreamweaver, Eclipse, Flairbuilder, Grunt, Jira, Ms Office Products, Photoshop, Indesign, Quarkxpress, Phpstorm, Sharepoint, Sublime Editor, Svn, Git, Gitlab, Ultra Edit, Eclipse, Intellij, Soapui, Postman, Tealium, Selenium, Appium, Adobe Analytics And Others.

Languages

German

Native

English

Advanced

Spanish

Elementary

French

Elementary

Education

Oct 2003 - Feb 2010

FH Braunschweig/Wolfenbüttel

Bachelor in Media Informatics, without degree · Media Informatics · Braunschweig, Germany

Apr 2001 - Apr 2003

b.i.b. Bergisch Gladbach

State-certified computer scientist · Computer Science · Bergisch Gladbach, Germany

Certifications & licenses

Scrum Master I

State-certified computer scientist

Profile

Created

October 2025

Last Update

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Mario based?

Mario is based in Frankfurt am Main, Germany.

What languages does Mario speak?

Mario speaks the following languages: German (Native), English (Advanced), Spanish (Elementary), French (Elementary).

How many years of experience does Mario have?

Mario has at least 17 years of experience. During this time, Mario has worked in at least 8 different roles and for 16 different companies. The average length of individual experience is 1 year and 11 months. Note that Mario may not have shared all experience and actually has more experience.

What roles would Mario be best suited for?

Based on recent experience, Mario would be well-suited for roles such as: Expert in Web Analytics, Tag and Consent Management, IT consulting as web developer (back end / front end), Permanent position as Java developer.

What is Mario's latest experience?

Mario's most recent position is Expert in Web Analytics, Tag and Consent Management at Deutsche Bahn AG.

What companies has Mario worked for in recent years?

In recent years, Mario has worked for Deutsche Bahn AG, Vertilas GmbH, Jadeva GmbH, Deutsche Hypothekenbank, and bellavista-madrid.com.

Which industries is Mario most experienced in?

Mario is most experienced in industries like Information Technology (IT), Banking and Finance, and Transportation and Logistics. Mario also has some experience in Professional Services, Telecommunication, and Insurance.

Which business areas is Mario most experienced in?

Mario is most experienced in business areas like Information Technology (IT), Business Intelligence, and Marketing. Mario also has some experience in Product Development and Project Management.

Which industries has Mario worked in recently?

Mario has recently worked in industries like Information Technology (IT), Transportation and Logistics, and Banking and Finance.

Which business areas has Mario worked in recently?

Mario has recently worked in business areas like Information Technology (IT), Business Intelligence, and Project Management.

What is Mario's education?

Mario holds a Bachelor in Media Informatics from FH Braunschweig/Wolfenbüttel.

Does Mario have any certificates?

Mario has 2 certificates. These include: Scrum Master I and State-certified computer scientist.

What is the availability of Mario?

Mario is immediately available part-time for suitable projects.

What is the rate of Mario?

Mario's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.