Onno Janssen Email
5 free lookup(s). No credit card required.
If you need more lookups,
subscriptions start at $34 USD/month.
Onno Janssen Location
- Amsterdam, NH, NL
Onno Janssen Work
- Freelance Full Stack and DevOps Engineer and Consultant and Architect (October 2013 - Present)
- Software Engineer @ (October 2023 - April 2025)
- Co-Founder and CTO and Solution Architect @ (December 2014 - September 2023)
- Freelance Software Developer @ (May 2016 - October 2016)
- Full Stack Developer @ Cloozup (March 2014 - June 2016)
- Software Developer @ (February 2013 - March 2014)
- Software Engineer @ (October 2011 - February 2014)
- Software Developer @ (November 2012 - January 2013)
- Software Development @ (October 2011 - November 2012)
- Software Developer @ (February 2011 - September 2012)
- Software Developer @ (November 2010 - September 2011)
- Software Developer @ (November 2010 - February 2011)
- Software Developer @ (September 2006 - October 2010)
- Software Developer @ (November 2008 - March 2010)
Onno Janssen Education
- Hogeschool Rotterdam
Bachelor of IT
2001-2008
Onno Janssen Skills
- C#
- Software Development
- .NET
- UML
- Scrum
- OOP
- WPF
- LINQ
- WinForms
- XML
- WCF
- SQL
- OO Software Development
- ASP.NET
- ASP.NET MVC
- MVVM
- .NET Remoting
- ERD
- Entity Framework
- Agile Application Development
- GUI development
- ADO.NET
- WCF Services
- ASP.NET AJAX
- Windows Azure
- Xamarin
- jQuery
- Leadership
- Net
- Engineering
- HTML
- Java
- Marketing
- Product Management
- Product Development
- Net Remoting
Onno Janssen Summary
- Onno Janssen, based in Amsterdam, NH, NL, is currently a Freelance Full Stack and DevOps Engineer and Consultant and Architect at Self Employed. Onno Janssen brings experience from previous roles at JEX, Bisner, Royal FloraHolland and Cloozup. Onno Janssen holds a 2001 - 2008 Bachelor of IT @ Hogeschool Rotterdam. With a robust skill set that includes C#, Software Development, .NET, UML, Scrum and more. Onno Janssen has 1 emails on RocketReach.
Looking for a different Onno Janssen?
Find contact details for 700 million professionals.
Others Named Onno Janssen
Top Employees
Peter Guthy
Founder SpeakPeter
New York, United States
Sam Mumley
President and CEO, Integra,LLC
Manassas, VA, US
Jac Alvarez
Chief Executive
Wellington, FL, US
Rhiannon Carvalho
CEO Residential and Family Management
Tampa, FL, US
Ray Rogowski
CEO of Retirement Planning
Thornton, PA, US
Danny Kindergan
Chief Executive Officer
Wyckoff, NJ, US
Fedor Andreev
CEO
Los Angeles, CA, US
Jerald Barnes
President and CEO
New Orleans, LA, US
Peter Brown
Founder, President
Washington, DC, US
Josh Silkin
Chief Executive Officer
Bayport, NY, US
Liz Beck
Founder, Liz Beck Consulting | REALTOR®
United States
G2 Crowd Trusted
300K+ Plugin Users
© 2026 RocketReach.co