I love to lead by example. This means I work really hard to accomplish my own, the company’s and my clients goals. There’s nothing more rewarding than succeeding after going that extra mile.



Almost everyone I’ve worked with have singled out versatility as my strongest asset. I’ve worked both as a people’s manager leading organisations with over 100 people, as well as had my own expertise contributed to projects. So what are my areas of expertise? I see myself living between the core business (let’s call it sales), technology and marketing. Eric Schmidt, Google’s Executive Chairman and previous CEO referred to people with skill sets like this as “smart creatives”.

In it’s core, this means that I can come up with ideas to grow a business, and then execute the plan operationally. Along the way, As Eric referred to, I’ll care greatly about your and my own integrity, and the place I work for. This might sound easy enough but involves a lot of tools and a broad skill set in today’s technology-driven world. From a project and product management perspective I’ve worked with the Atlassian suiteBasecamp, Pivotal tracker, Microsoft TFS (Urban Turtle), Podio, Confluence and Trello (and probably a few more) to deliver websites and intranets based on EPiServer, DrupalWordPress and Microsoft SharePoint. Combining these with leadership abilities, I’ve also implemented some of these tools and agile processes in organisations. The same goes without saying in the marketing world; focused on the digital side of businesses I’ve become fluent in most Google tools, from Apps to AdWords, AdSense, and Google Analytics, various email marketing tools such as Mailchimp, aWeber and Apsis, a bunch of ad networks such as Facebook ads and AdMob etc. As a firm believer of conversion rate optimisation, I’ve worked with Optimizely, Hotjar, CrazyEgg, and a few others.

And the best part?

I am still learning.

Maybe we should meet? A part from being a really nice guy, I’m great at what I do. Don’t take my word for it though, see what others have to say about me.


Product Management
Project Management
Digital Marketing
Online Advertising
Various CMS (WP/EPiServer etc)
Social Media & Strategy
Web Analytics
Intranets, Process Management etc
Leadership and Managing Clients

Read more about my assets and what I’ve done in the past. Download my curriculum vitae and please don’t hesitate to contact me if you have any questions!


Martin Harbech

From both a social and professional perspective Oscar is an outstanding colleague. I’ve worked closely with him over the past 1½ year and he has consistently impressed me with his in-depth product knowledge and understanding of the online industry. He’s one of the few people I turn to when I need a second opinion on something [..] Read more.

Martin HarbechDirector at Facebook
Johan Carrick

Oscar is one of the key factors for us in choosing Avantime as our partner. He’s is extremely result driven leader. He has the ability to work with details and at the same time see the whole picture. As a person he has a tremendous amount of heart and a lot of engagement. He sees possibilities where others see problems and he makes decisions based on knowledge which is recurring as a client [..] Read more.

Johan CarrickDirector of Sales and Fundraising at ‎SOS Barnbyar
Martin Lögdberg

I have had the pleasure to work closely with Oscar several times during my time at Avantime. He is an incredible easy going guy, yet extremely focused and sharp. Oscar has a unique combination of really detailed knowledge about online marketing and the ability to see the bigger picture. He always takes on any task, how hard it might be, with a big smile on his face and encourage others to do the same [..] Read more.

Martin Lögdberg‎Associate Manager at Netlight Consulting
Vilhelm Josander

As a consultant I had the pleasure of working with Oscar on several occasions during his time as CEO of Avantime. Oscar has the ability to drive a company forward and get everybody involved, from clients to partners to colleagues. Solid skills within management and leadership in combination with technical understanding and creativity  [..] Read more.

Vilhelm JosanderCTO at IVEO ABhttp://iveo.se
Charlotta Ulvenlöv

Oscar was my strategic partner in terms of online marketing, SEO and online trends during the election campaign in 2010. Without his expertise and ability to always quickly resolve both technical and communication problems we had not done so well on the web as we did [..] Read more.

Charlotta UlvenlövGruppchef at Kommunalhttp://socialdemokraterna.se
Eva Anttila

Oscar’s key strengths are not only his technical expertise and impressive analytical abilities, but also his approachability and collaborative spirit. We worked together on several projects and Oscar always delivered his work in a timely manner ensuring we met deadlines [..] Read more.

Eva AnttilaCX Lead at Plan International Finlandhttp://www.plan.fi/en-GB/
Ted Valentin

Oscar was my AdSense contact and he was great to work with. Fast, responsive, and best of all proactive. I recommended him to all the other web entrepreneurs at 24 hour business camp, where Google was a product sponsor. On this side of the Atlantic, Oscar is the best Google-person I’ve dealt with. Gets things done.

Ted ValentinWeb Entrepreneurhttp://www.tedvalentin.com
Maria Ardstål

Oscar is an strategic and result driven leader with a lot of engagement. He can see possibilities in everything and he makes decisions based on knowledge. Oscar is a true coworker and a joy to work with. You can always learn something new from him while he keeps challenging you to do better and see bigger.

Maria ArdstålSenior Consultant at Forefront Consultinghttp://www.creuna.se
Andreas Martin

I have had the opportunity to report to Oscar Karlsten, a ridiculously efficient manager and CEO who is also a great coach and mentor. Oscar hired me 5 years ago to his online marketing team. It’s hard to pinpoint exactly what makes Oscar such a great leader but I think it’s a mix between his professionalism, knowledge and his down to earth personality which is filled with warmth and genuine caring for his employees [..] Read more.

Andreas MartinProject Manager at AvantimeAvantime
Robert Olsson

Oscar was my account contact at Google. I was immediately struck by his deep knowledge of what he was doing. He always got back with answers on time, correct information, creativity and encouragement, without being pushy in any way. I wish all account contacts was this professional.

Robert OlssonEntrepreneur at RobTex LTDhttps://www.robtex.com
Natalie Sial

Oscar is the project leader that will certainly be dedicated to your cause. With his professional knowledge in digital strategies he will manage to broaden your horizons regarding online communications. I highly recommend hiring Oscar Karlsten.

Natalie SialPress Secretary for Minister of Employment
Johan Ulvenlöv

Oscar is great to work with, creative and yet focused. Delivers results.

Johan UlvenlövValledare at LOhttp://www.lo.se

I’ve worked with so many great people and clients over the years. Some of whom have given me some more feedback.