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Klaus Breyer

Founder

Klaus Breyer
Berlin, Germany

Experience

Jan 2022 - Dec 2023
2 years

Founder

unixtime.app

  • Designed a tool for API developers to facilitate bulk timestamp conversion, born from IIoT microservice work with abundant Unix timestamps.
  • Streamlined workflows by allowing copy-pasting of entire API requests to view and convert all timestamps in context.
  • Enabled screenshot captures of conversions for sharing in collaborative spaces like Slack or JIRA.
  • Evolved from a straightforward HTML file into a full-fledged Mac and Windows application.
  • Open sourced the project to give back to the developer community.
Jan 2021 - Dec 2023
3 years

Co-founder & CTPO

Fillter

  • Developed Fillter, a form for social media creator requests that users link in their link tree, Instagram bio, or website.
  • Implemented a unique questioning technique so requests arrive via email in a structured format.
  • Jointly founded the tool with equal co-founders Felix and Oğuz, leveraging individual skills to bring the project to market.
Jan 2020 - Dec 2021
2 years
Remote

Solopreneur

cloudlog

  • Created Cloudlog.dev, a tool for frontend developers to stream console.log output from any remote browser in real time into their own developer console.
  • Developed to meet the needs of remote work environments.
Jan 2019 - Present
7 years 1 month
Berlin, Germany

Technology Principal (freelance)

Ray Sono AG

  • Involved in projects from initial conceptual brainstorming to implementation using internal or external resources.
  • Served as Tech Lead on larger projects, overseeing development teams on-site with the Berlin team or remotely with an international team of developers.
Jan 2019 - Present
7 years 1 month

Startup Advisor

touch361

  • Act as a technical sparring partner for founders focusing on marketing and business intelligence.
  • Tackle challenges related to data protection (DSGVO) and the product development process with the technical service provider.
Jan 2019 - Dec 2023
5 years

Tech Lead (freelance)

Hydro Pocket

  • As the Technical Lead at Hydro Pocket, the first end-customer product of the industrial company GmbH & Co. KGaA, I built the tech team from scratch within this new business unit and introduced the Shape Up method.
  • Hydro Pocket is a leading provider of solutions for hydropower plants. It offers innovative technologies to prevent outages and optimize the performance of hydropower plants through actionable real-time data.
Jan 2018 - Present
8 years 1 month

Startup Advisor

vitalfunktion GmbH

  • Spar with the founder weekly on product development and monetization for a medication intolerances app with several thousand MAU financed through fixed advertising cooperations.
  • Developed and maintain a B2B variant prototype in Material UI aimed at doctors and pharmacists.
Jan 2018 - Dec 2019
2 years

Founder and Chief Prototyping Officer

Fotando GmbH

  • Identified the need for a mobile browser solution for photo uploading, cropping, and editing to avoid bloated native apps and poor ad conversions.
  • Designed a customer journey allowing users to hang printed photos on their wall directly after delivery.
  • Achieved functional technical performance but faced financing challenges due to the timing of the first COVID-19 wave.
Jan 2016 - Dec 2019
4 years

Technical Evangelist & Tech Lead (interim)

Native Studios UG

  • Built several iterations of a prototype for founders in 2016 and 2017 until securing backers and first customers.
  • Served as Tech Lead for product development and Technical Evangelist to demonstrate the startup’s technology and capabilities to customers.
Jan 2016 - Dec 2018
3 years

Founder and Chief Technology & Product Officer

BuzzBird GmbH

  • Embarked on an exciting journey with the goal of making social media influencers programmatically bookable, similar to Google Ads.
  • Developed sophisticated software that digitalizes the influencer process, acting as an “Influencer Agency on Steroids,” now primarily used internally.
  • Implemented key features including a billing system, a matching algorithm, and an influencer inventory management module.
  • Encouraged transparency and data-driven decisions by enabling social media creators to share their statistics.
Jan 2010 - Dec 2015
6 years

Founder and Managing Technical Director

buddybrand GmbH

  • Started building Facebook apps as a freelancer immediately after university and co-founded the company before completing my bachelor thesis.
  • Built several hundred Facebook apps, grew the company from cash flow to 30+ employees, and transformed buddybrand into a full-service digital creative agency.

Summary

Hello, I’m Klaus Breyer, a technology leader with a strong entrepreneurial spirit and over a decade of experience in building and managing effective teams. From kickstarting my entrepreneurial journey in 2010 with my first startup to taking on the CTO/CTPO roles in numerous ventures, I’ve been instrumental in driving technological innovation and excellence.

I’ve anchored my beliefs in Shape Up, the next wave of agile.

I turn visionary business goals into concrete results, with focused expertise at the intersection of product and tech organization. It’s not merely about coding; it’s about crafting standout products that make a mark and drive business forward.

  • Startup strategy – turning ideas into impactful ventures.
  • Selling the tech vision – whether it’s to investors or stakeholders.
  • Prototyping & crafting the first version of a product from scratch, if need be.
  • Assembling and nurturing a killer team.
  • Bringing product & engineering processes up to speed.

From startup monoliths to large microservice environments, I’ve led and launched.

But beyond the tech, I build infrastructures that empower.

Teams that innovate - Projects that matter.

I’ve penned down my thoughts in articles and shared them out loud at conferences. Whether it’s a page or a stage, I’m there. With a voice in the tech community, I am more than just a leader; I am an influencer, continually bridging the gap between technology, product, and business.

» Good software is always used but never finished.«

Languages

German
Advanced
English
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