Stefan Harder-Interim Manager, Start-Up Consultant
Check rate
Experience
Interim Manager, Start-Up Consultant
Self-employed
- Concept, implementation and consulting for eCommerce projects
- Strategy, discovery, tech setup, product ownership
- Go-to-market strategies and implementation
Chief Growth Officer, Executive Board Member
Rebike Mobility GmbH
- Development and implementation of company strategy (purpose, vision, 3-year plan, metrics, differentiators; quarterly swimlanes, OKR)
- Brand strategy, communication, content production, social media marketing, PR
- Paid & organic search, content marketing, affiliate marketing, remarketing, display
- Digital product development for rebike.com and ebike-abo.de: product discovery and delivery in a SCRUM team (design, UX/UI, development, web/user analytics, testing & optimization)
Interim Chief Product Officer Kabuni Planet
Kabuni Ltd.
- Development of a product prototype for a 360° video offering for mobile/app
- Development of a content strategy for market entry
- Negotiation of licensing rights
Co-Founder, Shareholder, CEO/CCO
Jollydays GmbH
- Brand and communication strategy and implementation (classic/TV/out-of-home, social media marketing, performance marketing, paid/organic search, content marketing, live marketing, web/user analytics)
- User onboarding & development
- Digital product management for web app (product design, UX/UI, development, optimization)
- Business development (corporate/retail, strategic partnerships)
- Business operations, M&A, financing
International Business Development Manager, Convergent Content Application (CCA)
Alcatel Lucent Austria AG
- Supported all global regions in the transformation into a marketing service provider with convergent mobile applications
- Nominated for the Alcatel High Potential program "Stretch"
- Member of the "Tiger Team Asia Pacific" for developing master plans to achieve revenue targets in Asia-Pacific
Head of Regional Marketing & Project Leader CRM/eMarketing
Orange Austria Telecommunications GmbH
- Managed the regional marketing department, including budget and team
- Implemented a geographic information system for One-Internet and expansion planning based on marketing criteria
- Led and executed the strategic "Marketing Automation" project for software-supported customer relationship management
- Developed a strategy for mobile 1:1 marketing
Industry experience
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Experienced in Tourism, Information Technology, Retail, Telecommunication, Automotive, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Product Development, Marketing, Operations, Strategy, Information Technology, and Sales.
Summary
Value- and team-oriented leader, CEO and entrepreneur with 20 years of experience in eCommerce and a proven track record in fast-paced industries. Expert in building and leading high-performing teams in agile environments, growth/multichannel marketing, user activation, brand development, digital product management. Development and implementation of company strategies, business development and business operations, business planning, fundraising and financing.
- Co-Founder, owner, CEO and CCO of Jollydays, exit in Dec. 2020
- #1 in Austria, #3 in Germany in a highly competitive market
- Around 100k transactions per year and a total of 3.6 million #jollyhours (realized experience time) across Europe
- Winner of multiple online awards for UX and brand awareness
Skills
Brand Marketing: Brand And Communication Strategy And Implementation (Classic/Tv/Out-Of-Home, Social Media, Content Marketing, Pr, ...)
Performance Marketing: Search, Shopping, Display, Remarketing, …
Digital Product Management: Discovery And Development Of State-Of-The-Art Digital Products In Agile Teams (Design, Ux/Ui, Development, Web/User Analytics, Testing & Optimization)
General Management: Corporate Strategy, Change Management, Restructuring, Business/Digital Transformation
Driven By Strong Values And The Desire To Enable And Build
Second Chairperson (Alongside My Daughter Marlene) Of Our Registered Association Give A Free Lunch E.V., A Project That Empowers Our Children To Change The World
Ms Office
All Common Commerce Suites
Google Product Family
Seo
Tv Tracking Systems
Shop Systems (Shopify, Shopware, …)
Languages
Education
University of Leeds
Master of Arts · Geographical Information Systems (GIS) · Leeds, United Kingdom
Technical University of Berlin
Diploma in Media Consulting, academic specialization in Geography · Media Consulting · Berlin, Germany
University of Tübingen
Intermediate examination · Geography/English Studies · Tübingen, Germany
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Stefan is based in Oberhaching, Germany.
Stefan speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).
Stefan has at least 28 years of experience. During this time, Stefan has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 5 years and 8 months. Note that Stefan may not have shared all experience and actually has more experience.
Based on recent experience, Stefan would be well-suited for roles such as: Interim Manager, Start-Up Consultant, Chief Growth Officer, Executive Board Member, Interim Chief Product Officer Kabuni Planet.
Stefan's most recent position is Interim Manager, Start-Up Consultant at Self-employed.
In recent years, Stefan has worked for Self-employed and Rebike Mobility GmbH.
Stefan is most experienced in industries like Tourism, Information Technology, and Telecommunication. Stefan also has some experience in Retail, Media and Entertainment, and Automotive.
Stefan is most experienced in business areas like Product Development, Marketing, and Operations. Stefan also has some experience in Strategy, Information Technology, and Sales.
Stefan has recently worked in industries like Information Technology, Retail, and Automotive.
Stefan has recently worked in business areas like Product Development, Strategy, and Information Technology.
Stefan holds a Master in Geographical Information Systems (GIS) from University of Leeds and a Bachelor in Geography/English Studies from University of Tübingen.
The availability of Stefan needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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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 25 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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