Curriculum Vitae of Nils H. Ohlmeier

E-mail: nils at ohlmeier dot com

Work experience Mozilla
Mountain View, USA

Staff Software Egineer for WebRTC

Staff QA Engineer for WebRTC

January 2015 to present

December 2013 to December 2014

Palo Alto, USA

Development Team Lead for Skype on TV

Quality Engineer for the SkypeKit SDK

Quality Team Lead for Core Web Service

Quality Engineer in eBay clean room for Skype

January 2013 to present

January 2012 to December 2012

December 2009 to December 2011

September to November 2009


Offering consultancy around VoIP

Projects (for different customers) included:

  • Design and extension of a SIP B2B/UA
  • Software desing and implementation of a body scale
  • 9 months 'system testing' of a SIP soft switch with SS7 and GSM interconnection
  • Several attendances of interop events like SIPit and IMS Plugfest
October 2007 to October 2009
  iptelorg GmbH, part of Tekelec
Berlin, Germany

Quallity Assurance Manager, responsible for application and solution testing, and for customer projects in the VoIP area

October 2005 to September 2007
Berlin, Germany

Senior Software engineer responsible for the SIP stack of the VoIP phones, testing and customer support.

April 2004 to September 2005, a FOKUS task force
Berlin, Germany

Working student responsible for testing and High Availability of the SIP Express Router

April 2002 to April 2004
  innominate AG
Berlin, Germany

Working student in the administration and some projects for customers, all related to Linux.

Aug 2000 to Mar 2001
  IBM Deutschland Entwicklung GmbH
B÷blingen, Germany

Working student for the development of Websphere MQ Workflow (formerly MQ Series Workflow)

Jul 1999 to Oct 1999
Berlin, Germany

Small projects and administrative tasks

1997 to 2004
Professional Skills
  • programming languages: C, Python, C++, Java, Pascal
  • networking: Voice over IP (SIP), TCP/IP
  • operating systems: Linux/Unix, Windows, DOS
Professional Interests
  • open source software, especially Linux (search for my name on Google)
  • Internet telephony (SIP)
  • network security
  • TCP/IP networks
  • IETF work as document shepered and draft reviwer
Certifications LPIC 1 - LPI ID: LPI000097349 verification code: ku9ncw8yen- Linux Professional Institue 2006
Education Computer Science Department,
Technical University of Berlin, German

Majors: communication systems and databases
Thesis: Design and Implementation of a High Availability SIP Server Architecture
download thesis as PDF file

1997 to 2003
  Werner-von-Siemens-Gymnasium, Grammar School
Berlin, Germany

Majors: math and history

1994 to 1997
  Kurt Tucholsky Gesamtschule, Comprehensive Secondary School
Minden, Germany

Majors: math and history

1987 to 1994
  Wichern - Grundschule, Basic School
Bad Oeynhausen, Germany
1983 to 1987
Languages Skills mother tongue: German
fluent in written and spoken English
basic knowledge French
References Jiri Kuthan, founder of iptelorg GmbH
Dr. Christian Stredicke, CEO at snom Technology AG