Sybil Ehrensberger

Software engineer and traveler

Professional Experience

Software engineer

Ergon Informatik AG, Zurich, Switzerland, May 2017 - present

Co-Founder and CTO (part-time)

ViaMondo (J-App Sàrl), Zurich, Switzerland, May 2016 - December 2018

  • managing several freelance programmers and coordinating the development of the ViaMondo app and website
  • lead developer of a successfully launched Ionic hybrid mobile app
  • co-initiator for the realization of a travel and lifestyle app

Security engineer (part-time)

SWITCH, Zurich, Switzerland, August 2013 - March 2017

  • extended and improved the applications used by the security team
  • developed a Node.js command line application which analyzes websites for malicious HTML or JavaScript code by emulating a web browser
  • created Django-based web applications (e.g. for the domain abuse process)
  • automated the management of malware analysis results in a MySQL database and sharing the information through Python scripts

Software development intern

SWITCH, Zurich, Switzerland, May 2012 - August 2012

  • refactored and extended a Python application which analyzes websites for malicious HTML or JavaScript code
  • integrated a sandbox into the Python module to safely execute the JavaScript code found on those websites
  • provided an API for integration with a web interface

R&D intern in software development

Sensirion, Stäfa, Switzerland, May 2011 - August 2011

  • developed a software application and a framework in C# to test humidity sensors for malfunctioning using .NET
  • wrote queries for existing MSSQL and MySQL databases and presented the collected information in a graphical user interface


Master of Science

ETH Zürich, Switzerland, September 2013 - November 2015

  • Focus on Information Systems: Complete list of all of my courses
  • Master's thesis topic: "DataMockups: design tool for content-powered mockups"
  • Graduated in November 2015; Overall grade point average: 5.42 (of 6.0)

Honours Bachelor of Science

University of Toronto, Canada, September 2009 - July 2013

  • Specialist in Computer Science with a Minor in Mathematics: Complete list of all of my courses
  • Graduated with distinction in June 2013; Final cGPA (cumulative grade point average): 3.45 (of 4.0)

Swiss Cantonal Matura

Kantonsschule Oerlikon, Switzerland, August 2004 - August 2009

  • Swiss Cantonal Matura in Latin and modern languages including a 6-month exchange semester in Milan, Italy.

Technical Skills

Programming languages

  • Java, Python, Node.js (regular use for the past 3+ years)
  • Ruby, C#, C++, Matlab, Scala (used in smaller projects)
  • C, Scheme, ML, Prolog (knowledge of basic concepts)

Web technologies

  • HTML & CSS, JavaScript, php
  • Angular, jQuery, Sass
  • Ruby on Rails, Django

Database technologies

  • MySQL, postgreSQL, sqlite, Oracle
  • PouchDB, MongoDB


  • svn, git
  • pip, npm, bower
  • gulp, ansible


  • German - native language
  • English - native language
  • French - fluent (DELF B2)
  • Italian - fluent (4 years in high school, 6 months in Italy)
  • Spanish - elementary (1 year in university)

Free-lance and Volunteer Experience

Co-organizer and coach

Django Girls workshops, Switzerland, September 2016 - present

Django Girls is a non-profit organization that empowers and helps women to organize free, one-day programming workshops by providing tools, resources and support. Our goal is to bring more amazing women into the world of technology and increase the diversity in the Django community.

  • co-organizer for the second Django Girls workshop in Zurich on September 1-2, 2018
  • co-organizer for the first Django Girls workshop in Zurich on October 14-15, 2017
  • coach for the second Django Girls workshop in Berne on May 6-7, 2017
  • co-organizer and coach for the first Django Girls workshop in Rapperswil on February 18, 2017
  • coach for the first Django Girls workshop in Berne on September 24, 2016

Student rep

VIS - Computer Science Student Union, ETH Zurich, Switzerland, September 2013 - February 2015

  • student representative at the Computer Science departement conference (DK)
  • coach for incoming Master students without an ETH Bachelor (MoEB)

President & Outreach coordinator

Hart House Camera Club, Toronto, Canada, February 2011 - April 2013

The Hart House Camera Club is a Hart House student-run club where members can do film and digital photography in a social setting. The club offers a variety of outings and extensive darkroom facilities for all members.

  • redesigning, maintaining and updating the club’s website
  • communicated with members through social media and newsletters
  • planning and organizing regular club events (outings, exhibitions)