Recommended expert
Frederik (Phd) Lipfert
Founder
Experience
Jan 2017 - Present
9 years 2 monthsMunich, Germany
Founder
Tech Lunch Club
- Founded and organized a curated networking event connecting startup founders, executives, and tech leaders over lunch.
- Facilitated discussions on emerging technologies, AI, and business innovation, fostering collaboration between the startup and corporate worlds.
- Built a thriving industry community, creating meaningful business opportunities.
Jan 2017 - Jun 2018
1 year 6 monthsMunich, Germany
Chief Technology Officer
Catchys GmbH
- Co-founded Catchys, an online fashion search engine aggregating 5 million+ products from second-hand and outlet marketplaces.
- Independently built and deployed the entire platform, including backend infrastructure, search indexing, and AWS cloud deployment.
- Pitched investors alongside a co-founder, contributing technical insights and product vision, leading to 500,000 EUR in venture funding.
- Collaborated with business and marketing teams to improve conversion rates and user engagement.
Jul 2016 - Present
9 years 8 monthsMunich, Germany
Founder & CEO
Speedcheck (Etrality GmbH)
- Built and scaled an internet speed test application to 3 million monthly active users across mobile and web.
- Developed full-stack solutions using Node.js, Swift, React, AWS, and GCP.
- Designed and implemented data analytics pipelines to optimize user engagement and retention.
- Partnered with telecom companies to provide network performance insights.
- Developed and deployed a custom speed test SDK in the Booking.com app, enabling hotel guests to assess WiFi quality.
- Managed business strategy, growth, and monetization, reaching a peak annual revenue of 1M EUR.
Jan 2011 - Dec 2013
3 yearsMunich, Germany
PhD Researcher
Forschungszentrum Jülich
- Conducted neutron scattering experiments on microemulsions at a nuclear research reactor.
- Successfully secured beam time at leading research facilities (NIST, Oak Ridge National Laboratory) via expert-reviewed proposals.
- Designed and executed complex experimental setups, collecting and analyzing large-scale data.
- Utilized Python and scientific computing tools for data processing and quantitative analysis.
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Information Technology (9.5 years), Telecommunication (9.5 years), Professional Services (9 years), Education (3 years), and Fashion (1.5 years).
Information Technology
Telecommunication
Professional Services
Education
Fashion
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Information Technology (9.5 years), Product Development (9.5 years), Strategy (9.5 years), Marketing (9 years), Operations (9 years), and Research and Development (3 years).
Information Technology
Product Development
Strategy
Marketing
Operations
Research and Development
Summary
Experienced technology entrepreneur, software engineer, and ex-CTO with a PhD in Physics and a track record of building and scaling high-impact products. Led the development of applications with millions of users, successfully raised 500,000 EUR in venture funding, and collaborated across engineering, business, and product teams. Passionate about AI-powered applications, cloud computing, and distributed systems, with a strong focus on building scalable and high-impact technology solutions that bridge the gap between innovation and real-world implementation.
Skills
- Python
- Node.js
- React
- Aws
- Cloud Infrastructure
- Full-stack Development
- System Architecture
- Api Development
- Data-driven Product Optimization
- Ai Integration
Languages
German
NativeEnglish
AdvancedEducation
Oct 2011 - Jun 2014
University of Münster
PhD in Physics · Physics · Münster, Germany · Magna cum laude
Oct 2005 - Jun 2010
Technical University of Munich
Masters Degree, Technical Physics · Technical Physics · Munich, Germany
Profile
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Frequently asked questions
Do you have questions? Here you can find further information.
Where is Frederik based?
Frederik is based in Munich, Germany.
What languages does Frederik speak?
Frederik speaks the following languages: German (Native), English (Advanced).
How many years of experience does Frederik have?
Frederik has at least 13 years of experience. During this time, Frederik has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 3 years and 2 months. Note that Frederik may not have shared all experience and actually has more experience.
What roles would Frederik be best suited for?
Based on recent experience, Frederik would be well-suited for roles such as: Founder, Chief Technology Officer, Founder & CEO.
What is Frederik's latest experience?
Frederik's most recent position is Founder at Tech Lunch Club.
What companies has Frederik worked for in recent years?
In recent years, Frederik has worked for Tech Lunch Club and Speedcheck (Etrality GmbH).
Which industries is Frederik most experienced in?
Frederik is most experienced in industries like Information Technology (IT), Telecommunication, and Professional Services. Frederik also has some experience in Education and Fashion and Apparel.
Which business areas is Frederik most experienced in?
Frederik is most experienced in business areas like Information Technology (IT), Product Development, and Strategy and Planning. Frederik also has some experience in Marketing, Operations, and Research and Development (R&D).
Which industries has Frederik worked in recently?
Frederik has recently worked in industries like Information Technology (IT), Telecommunication, and Professional Services.
Which business areas has Frederik worked in recently?
Frederik has recently worked in business areas like Information Technology (IT), Product Development, and Strategy and Planning.
What is Frederik's education?
Frederik holds a Doctorate in Physics from University of Münster and a Master in Technical Physics from Technical University of Munich.
What is the availability of Frederik?
Frederik is immediately available for suitable projects.
What is the rate of Frederik?
Frederik's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
How to hire Frederik?
To hire Frederik, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1200
900
600
300
Market avg: 890-1050 €
Market avg: 890-1050 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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