Stefan: Email & Phone Number

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Vice President, Frequentis USA Inc. at Frequentis|Columbia, Maryland, United States

Position:

Vice President, Frequentis USA Inc. at Frequentis

Location:

Columbia, Maryland, United States

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Last updated: 2026-07-15

Updated: 2026-07-15

Found email addresses for Stefan:

Business emails:

s***********r@frequentis.com,

s****n@galler.cc,

s*****r@frequentis.com

Personal emails:

s***********r@gmail.com,

s**********r@gmail.com

Found phones for Stefan:

+1-205-***-**45,

+1-870-***-**72,

+1-323-***-**01

A different Stefan?

Work Experience 23 years

Vice President, Frequentis USA Inc. at Frequentis

Jul 2022 - Current

Director Tower & Automation USA at Frequentis

Jan 2024 - Current

Director Air Traffic Management Tower Automation at Frequentis

Jan 2020 - Jul 2022

Director Air Traffc Management Networks at Frequentis

Feb 2018 - Dec 2019

Senior Strategic Product Manager - ATM Networks at Frequentis

Mar 2014 - Dec 2018

Product Management at Frequentis AG

Jul 2011 - Mar 2014

Member of Vienna Board at WdF - Wirtschaftsforum der Führungskräfte

Jan 2019 - Jul 2021

Head of Young Leaders Forum Austria, Bundesvorsitzender YLF at Young Leaders Forum

Oct 2014 - Jun 2017

Head of Vienna Board at Young Leaders Forum

Dec 2013 - May 2015

Research Assistant at Technische Universität Graz

Jun 2007 - Dec 2010

Visiting Researcher at University of South Australia

Jan 2010 - Jan 2010

Developer & Team Lead at TU Graz RoboCup Team

Feb 2004 - Oct 2009

Event Organizer / Local League Chair Middle-Size at RoboCup 2009

Jan 2008 - Jan 2009

Software Development Intern at Siemens

Jan 2006 - Jan 2007

Software Engineer at en-software GmbH

Sep 2003 - Oct 2006

Stefan started working in 2003, then the employee has changed 9 companies and 14 jobs. On average, Stefan works for one company for 2 years 7 months.

Stefan is proficient in English and German. Their professional focus is Air Traffic Control, Artificial Intelligence, and Artificial Intelligence (AI) across 3 core areas.

Stefan holds Understanding and Solving Complex Business Problems, Negotiation for Executives, and Digital Marketing Analytics certifications and has registered patents, including "Flight Guidance System and Multivariate Analysis Of Wireless Sensor Network Data For Machine Condition Monitoring". They have also been awarded Ideas and Best Practices, LUPE 2008, and Austria's Top 100 students award

Education

MIT Sloan Executive Education

Doctor of Philosophy (PhD) at Technische Universität Graz

Master of Science (MS) at Technische Universität Graz

Bachelor of Business Administration (BBA) at Technische Universität Graz

Frequently Asked Questions

What is Stefan's email address?

SignalHire found verified email addresses for Stefan, both business and personal. Their business email is s***********r@frequentis.com, and personal emails include s***********r@gmail.com, and s**********r@gmail.com.

What is Stefan's phone number?

SignalHire found multiple verified phone numbers for Stefan: +1-205-***-**45, +1-870-***-**72, and +1-323-***-**01.

How do I contact Stefan at Frequentis?

You can reach Stefan through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Stefan's professional background?

Stefan has 23 years of professional experience. They have held roles including Director Tower & Automation USA, Director Air Traffic Management Tower Automation, and Director Air Traffc Management Networks at companies such as Frequentis, Frequentis, and Frequentis. Their education includes MIT Sloan Executive Education, and Doctor of Philosophy (PhD) from Technische Universität Graz.

Is Stefan's contact information up to date?

Yes. Stefan's SignalHire profile was last updated on 15 July 2026, reflecting their current position as Vice President, Frequentis USA Inc. at Frequentis in Vienna, Austria.

Stefan Namesakes

Name

Company

Position

Stefan

Augusta Tool & Welding Suppliers

Acting Branch Manager

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Stefan

Nazero

Director of Construction

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Stefan

OnTrac

Package Handler

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Other employees at Frequentis

Name

Company

Position

Ambra Buccarelli

Frequentis

Regional Sales Manager (Middle East) – Defence

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Yassine BENFARES

Frequentis

Technical Support Manager at Frequentis

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Bernhard Reiterer

Frequentis

Regional Sales Manager - Public Safety

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Michael Brochu

Frequentis

Product Owner

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Michael Bean

Frequentis

Logistics Specialist

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Helmut

Frequentis

Senior Consultant

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Warren Ritchie

Frequentis

Project Manager

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Barry De Jong

Frequentis

ATM Specialist ATM Sales

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Bryden Fillier

Frequentis

Software Developer

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Tristan Vilon

Frequentis

Software Engineering

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