Ruben Hetfleisch

Ruben Hetfleisch

CEO

  • Engineering degree TU Darmstadt (2022), AI expertise at Fraunhofer Austria
  • Board member AI Austria, founder of GenAI Community Austria
  • Passionate about technical progress and knowledge exchange

After completing my engineering degree at TU Darmstadt in 2022, I was able to build deep expertise in artificial intelligence at Fraunhofer Austria.

As a board member of AI Austria, Austria's largest AI network, I founded the GenAI Community with great passion – Austria's only platform for generative AI.

Technical progress and exchange with others are particularly valuable to me. That's why I am deeply committed to this field. My goal is to make AI accessible and useful for everyone.

Bruno Bruno

Bruno

Chief Happiness Officer

  • Cockerpoo, 3.5 years old, certified mood manager.
  • Specialized in snack acquisition, scent tracking & strategic power naps.
  • Responsible for office security – at least until someone pets him...

Bruno is our Chief Happiness Officer and officially responsible for the team's emotional stability. As a 3.5-year-old Cockerpoo, he combines the curiosity of a Cocker Spaniel with the strategic intelligence of a Poodle – a mix that shows above all in perfected naps and highly professional snack monitoring.

He completed his studies in ‘scent tracking’ with a distinct practical focus. His daily tasks include carpet quality checks, monitoring food smells, and proactively neutralizing stress through targeted tail wagging.

He also takes on office security: He reliably guards the rooms as long as no person appears with a treat – then the case is re-evaluated.

In short: Bruno ensures that Klartext AI not only builds intelligent software but also has a smarter work climate.

Ondrej Hruby

Ondrej Hruby

AI & Full-Stack Engineer

  • Bachelor's in Computer Science, focus on Software Engineering; pursuing Master's in Data Science & AI
  • Enjoys building end-to-end systems with intelligent features and scalable cloud pipelines
  • Motivated by using AI to automate tedious tasks and unlock new insights

I hold a Bachelor's degree in Computer Science with a focus on Software Engineering and am currently pursuing a Master's in Data Science and AI. I enjoy building end-to-end systems that combine intelligent features with scalable cloud pipelines.

I'm especially motivated by challenges where AI can automate tedious tasks or unlock insights that weren't accessible before and being part of products that will make a difference.

Felix Krause Felix Krause

Felix Krause

CTO

  • Economics + Data Science, board member AIM tech network (450 experts)
  • Analytical thinking meets technical implementation for impactful AI
  • Work culture based on trust, curiosity, and fun

My economics studies showed me how closely people, organizations, and society are intertwined. Through my Master's in Data Science, I learned to make these connections visible in data. For me, artificial intelligence is the tool with which we can not only better understand but also shape the world.

As Chief Technology Officer of Klartext AI, I combine analytical thinking with technical implementation. My goal: to develop AI solutions that demonstrably work – reliable, understandable, and with real benefits for companies and society. Additionally, I am on the board of the tech network AIM, which unites 450 tech experts from Europe and regularly organizes popular hackathons.

I am motivated by working with a strong team to deploy the latest technologies and live a work culture based on trust, curiosity, and fun at work.

Hrvoje Ljubić

Hrvoje Ljubić

Full-Stack Developer

  • Versatile generalist: FinTech, ERP, AI chats, mobile apps, gaming
  • Focus on best solution rather than fixed tools or languages
  • UI/UX expertise for intuitive, user-friendly technology

As a versatile software developer, I am a generalist who quickly dives into new topics. I don't restrict myself to specific tools or languages; I focus on finding the best solution for the problem at hand.

My experience spans FinTech and ERP to AI chat systems, mobile apps, and gaming. With expertise in UI/UX design, I ensure that complex technology remains simple and intuitive for users.

Anna Poledna

Anna Poledna

Marketing & Communications Associate

  • International background in data analysis and biosciences
  • AI enthusiast for interdisciplinary projects
  • Connects people, ideas, and technology

International academic background in data analysis and biosciences.

AI enthusiast passionate about interdisciplinary projects that connect people, ideas, and technology.

Daniel Toth

Daniel Toth

COO

  • Founder & Managing Director at Klartext AI, specialized in tailor-made AI solutions.
  • 8+ years of experience across research, industry, and complex project leadership.
  • Technical excellence, strategic thinking, and focus on real business impact.

I have been working continuously since the age of 15 – in internships, student jobs, and later in research and industry projects – always with the goal of discovering which tasks truly drive me. This constant practice early on brought me to the intersection of technology, innovation, and real problem solving.

During my studies at TU Wien, which I completed in 2022 as a Diplom-Ingenieur, I gained deep experience in research and industrial application already in the Bachelor's phase. In the years that followed, this evolved into a professional focus: custom AI and digitalization projects that create measurable enterprise value and solve complex technical challenges.

At Fraunhofer Austria I led numerous projects – internal and external, often with international consortia and durations of up to three years. My strengths lie in rapid comprehension, strategic thinking, and the ability to turn ideas into functional prototypes and ultimately into industrial applications.

With Klartext AI I apply exactly this experience: We develop AI software solutions that are individually tailored to companies and generate impact where standard solutions reach their limits. Whether process optimization, automation, decision support, or – as one part of it – accessible communication: What matters is that technology solves real problems and creates sustainable impact.

Outside of work you can find me in the gym, on the football field, or cooking. In the office, Bruno – our office dog – provides the daily dose of calm and good mood.

Join Our Team

We're looking for people who want to shape the future of AI with us.