Sebastian Blum-Founder and Managing Director
Check rate
Experience
Founder and Managing Director
JustScaleBuilding GmbH
- Latest interims-management (04/22-04/23): Global Digital Lead Opel / Vauxhall
Senior Manager Digital Transformation
Accenture Interactive
Management consulting in digital marketing transformation with focus on digital platforms and automotive
Key clients:
Google, leading the Google / Accenture Ads Partnership in DACH
SMART, building a new breed of automotive eCommerce players
Managing Partner Precision Marketing & Digital Transformation
Wavemaker (GroupM)
Key clients: Vodafone, Chanel, Mondelez, Colgate
Leading more than 60 FTEs
Managing Partner Media Consulting & Strategy
MediaCom (GroupM)
Key clients: Volkswagen Group (Dealer Marketing), Sony, Shell
Leading more than 40 FTEs
Director Product & Development
Omnicom Media Group
- Innovation management and digital agenda setting for the media agency brands "OMD" & "phd".
Director Digital
ZenithOptimedia (Publicis Groupe)
Starting as Online Planner for Toyota at Zenith
Promoted GroupHead (2007) with growing team and client portfolio (Reckitt Benckiser, Coty)
Promoted Supervisor (2008) leading two digital teams (one in HH, key client: Bauer Verlag)
Promoted Digital Director for both sister brands (Zenith & Optimedia) with broader focus on new business and extending the agency offering in digital.
Co-Founder and Partner
Buenasoma - estudio creativo (PartG)
Design and creative services from marketing campaigns through fair appearances to product development
Key clients: AdHoc, Haaner Felsenquelle, Messe Düsseldorf, L’Oréal
Copy Writer
Red Cell - a WPP company
Copy writing, concept and idea development
Key clients: Alfa Romeo, Singapore Airlines, Geberit
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Advertising, Media and Entertainment, and Automotive.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Marketing, Information Technology, Strategy, and Product Development.
Summary
Dynamic Executive with almost 20 years of experience helping organizations grow and transform their business. Adept in making key decisions and working with other professionals to achieve common goals and solve challenges.
Experienced in managing large teams as well as leading highly skilled individuals, I am always keen to support people develop their full potential. Highly competent mediator skilled in effectively communicating on all levels, dedicated to successfully directing business operations. Pragmatic and result oriented, I am determined to build marketing and sales performance solutions at scale. Bringing a proven track record in managing digital projects of all kinds increasing overall company growth.
Skills
- Adaptability
- Leadership
- Marketing
- Digital Transformation
- Business Strategy
Languages
Education
Düsseldorf Chamber of Industry and Commerce
Certified Advertising Merchant (IHK) · Düsseldorf, Germany
University of Duisburg-Essen
German, Philosophy, Communication Science · Essen, Germany
Statistics
Experience
Expertise
Profile
Frequently asked questions
Have questions? Find more information here.
Sebastian is based in Wedel, Germany and can operate in on-site, hybrid, and remote work models.
Sebastian speaks the following languages: German (Native), English (Advanced).
Sebastian has at least 26 years of experience. During this time, Sebastian has worked in at least 8 different roles and for 8 different companies. The average length of individual experience is 3 years and 2 months. Note that Sebastian may not have shared all experience and actually has more experience.
Based on recent experience, Sebastian would be well-suited for roles such as: Founder and Managing Director, Senior Manager Digital Transformation, Managing Partner Precision Marketing & Digital Transformation.
Sebastian's most recent position is Founder and Managing Director at JustScaleBuilding GmbH.
In recent years, Sebastian has worked for JustScaleBuilding GmbH and Accenture Interactive.
Sebastian is most experienced in industries like Advertising, Media and Entertainment, and Automotive.
Sebastian is most experienced in business areas like Marketing, Information Technology, and Product Development. Sebastian also has some experience in Strategy.
Sebastian has recently worked in industries like Automotive and Advertising.
Sebastian has recently worked in business areas like Marketing, Information Technology, and Strategy.
Sebastian attended Düsseldorf Chamber of Industry and Commerce for Certified Advertising Merchant (IHK).
Sebastian is immediately available full-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 23 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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