Mario Steiner - Web Analytics and Consent Management Expert

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Frankfurt am Main, Germany

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Experience

Sep 2021 - Present

5 years 1 month

Expert in Web Analytics, Tag Management and Consent Management

Deutsche Bahn AG

Conducting and evaluating web analyses
Creating and editing tags and scripts in the area of tag management as well as banners and other client-side web elements in the area of 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 a 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 the Java area
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 with the technical implementation of industry-specific requirements for insurance in the Java environment (focus on BiPRO)
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

Documentation of software applications, technical description of software architectures and their implementation regarding the front end and the 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 advice in maintaining and further developing customer websites (mobile and desktop) with 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

Working on websites and adapting 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

Working on websites and adapting 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, landing pages (responsive), newsletters, and emails for marketing campaigns according to customer 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 customer websites based on templates and the Smooster CMS, revision of templates, 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

Creation of the base layout – responsive web design for a new customer website (web app, HTML5-based)
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

Support of the Web Developer team with refactoring and relaunch of the quicker.com platform, with a focus on responsive web design and use of Kanban in the team
Technologies used in development: HTML5, CSS3, Bootstrap, LESS, PHP5 (OOP), Zend Framework, Grunt, SVN
Technologies used in project management: JIRA, Scrum and Kanban

Mar 2013 - Mar 2013

1 month

Neu-Anspach, Germany

IT Consulting as Front End Developer

BBS – Kneis

Creation of the base layout draft according to customer 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

Revision of the existing website regarding navigation, creation of a JavaScript-based navigation as a replacement for the previous Java-based navigation
Technologies used in development: HTML5, CSS, Photoshop, JavaScript, jQuery

Sep 2012 - Feb 2013

6 months

Mannheim, Germany

IT Consulting as Front End Developer

Buhl

Adjustment of the front end of a website converted from Flash with regard to user inputs and testing of the changes
Exploration and testing of possible solutions regarding the site's performance issue
Technologies used in development: HTML5, CSS, Photoshop, JavaScript (OOP), jQuery

Jul 2012 - Oct 2014

2 years 4 months

Munich, Germany

IT Consulting as Front End Developer

UniCredit Bank AG

Support in the redesign of the intranet platform, data maintenance, and creation of new dummy containers for content
Creation of content elements, image files, PDF-based Flash files, PDF files from Excel templates, and text content
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 Consulting as Front End Developer

LHW Ltd.

Creation of monthly newsletter templates and various text and HTML versions for six languages
Image editing for sending text-based and HTML-based newsletter emails
Technologies used in development: HTML, CSS, Photoshop

Sep 2011 - Jun 2012

10 months

Hanover, Germany

IT Consulting as Front End Developer

Netrada

Support in web publishing and front end work: updating content elements and maintaining data
Adjustments and changes to 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 Consulting 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

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, Transportation, Professional Services, Telecommunication, and Insurance.

Information Technology

Banking and Finance

Transportation

Professional Services

Telecommunication

Insurance

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Business Intelligence, Marketing, Project Management, and Product Development.

Information Technology

Business Intelligence

Marketing

Project Management

Product Development

Summary

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

Skills

It Experience Since 2001
Industries: Banks, 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 Webserver, 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 More.

Languages

German

Native

English

Advanced

Spanish

Elementary

French

Elementary

Education

Oct 2003 - Feb 2010

FH Braunschweig/Wolfenbüttel

Bachelor in Media Informatics, not completed · Media Informatics · Braunschweig, Germany

Apr 2001 - Apr 2003

b.i.b. Bergisch Gladbach

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

Certifications & licenses

State-certified computer scientist

Statistics

Experience

Total positions 19

Experience in Information Technology 16 y

Avg length 1 y 11 m

Longest experience 15 y 10 m

Global experience

Countries worked in 2 (Germany, Spain)

Primary country Germany

Expertise

Recent roles Expert in Web Analytics, Tag Management and Consent Management, IT consulting as a web developer (Back End / Front End), Permanent position as Java developer

Main industries Information Technology, Banking and Finance, Transportation

Main business areas Information Technology, Business Intelligence, Marketing

Qualifications

Highest degree Bachelor

Certifications earned 2

Profile

Member since

October 2025

Last update

September 2026

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Frequently asked questions

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Mario is based in Frankfurt am Main, Germany.

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

Mario has at least 18 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.

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

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

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

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

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

Mario has recently worked in industries like Information Technology and Transportation.

Mario has recently worked in business areas like Information Technology and Business Intelligence.

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

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

Mario will be available part-time from October 2026.

Daily rate distribution

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<€720 €720-800 €800-880 €880-960 €960-1040 €1040+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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Daily rate avg. 884 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 892 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.