Guy Sie

Jack-of-all-trades Online Marketeer

Hey there, I'm Guy.

For a more in-depth look at me check out my personal writings - in Dutch - on Twitter and my blog Style over Substance. For some of my work in English try my Master's thesis on Slideshare.

For the more visually inclined my Flickr account has all of my photos, along with Instagram for any pics from my iPhone. My Pinterest should also keep you busy for a while.

Want to know more about my taste in music? Try my last.fm profile, follow me on Spotify or find out which gigs I'm going to on Songkick.

See what else I'm doing in my spare time by checking out the books I'm reading on goodreads, the games I'm playing on Raptr, the shows and movies I'm watching on trakt.tv and the places I visit on Foursquare.

Or take a look at one of my other social media profiles!




Twitter:   @guysie

Where I've Worked...



MSc. Communication Studies (Cum Laude)

University of Twente

Specialized in Marketing Communication, with a minor in Computer Science. Elective courses from the New Media and Corporate Communication tracks. Graduated with honours (cum laude) studying the effects of authenticity in marketing. My Master's thesis is available on Slideshare.

Graduated November 2011


Social media specialist


Responsible for social media at this 3D printer company.

August 2015 - Present

Community Manager


At this startup in advanced search technology I was responsible for tailoring the newly developed solution into a crowdsourced platform where users could discover, organize and share new information. I designed user-related flows and helped develop new features in anticipation of the public launch, spanning the full range of the AARRR (Acquisition, Activation, Retention, Referral, Revenue) lifecycle. Additionally I was product owner of outsourced app development on the iOS and Android platforms.

April 2014 - October 2014

Social Media Manager

Brooklyn Ventures

Developed and executed social media strategies for this venture capital firm and the start-ups they invested in, on all applicable fronts (marketing, customer service, recruitment, etc). Performed additional marketing tasks for two of their investments, RingCredible and SoSocio, in particular.

August 2012 - February 2014

Social Media Manager


August 2012 - February 2014

Social Media Manager


August 2012 - February 2014

Junior Online Strategist


For this full-service advertising agency, part of DDB Worldwide, I worked with large clients such as the ABN AMRO national bank to help them make effective use of social media. I also developed social media elements in support of advertising campaigns and internal projects created at Etcetera, including award-winning work such as the Bol.com ‘mummy suit’ viral and the Delete2009 project.

October 2009 - September 2010

Intern / Project Manager

Markeys Branding

During my internship at this branding agency in the Netherlands, I evaluated the company's current situation and helped develop a new positioning and identity to set it apart from its competitors.

February 2007 - September 2007

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Get in touch!

Guy Sie

Email: guy@guysie.nl
Twitter: @guysie
Skype: GuySie