Christoph Hafner

Tech Entrepreneur and Product Builder | Currently Exploring New Opportunities

Vienna, Vienna, Austria

About

Tech entrepreneur and product builder with deep experience leading teams, validating ideas, and bringing software products to life. I’ve built and launched multiple products as a co-founder of AVIMBU including Halea, an AI-driven QA and anomaly-detection platform and AVIMBU Finance & StartupDigest, a wealth management platform for VCs, angel investors and family offices. Before that, I was the first employee and iOS Lead of Rocket Apps building and scaling apps like StepsApp to millions of users. I have a strong technical background with years of experience in development, but my focus today is on the business side building software products from the ground up. Currently I’m in an exploration phase speaking with founders and people across tech and investment, testing new product directions (of course using AI), and taking on selective freelance/consulting work where I can support companies in software development, product strategy, and execution. If you’re working on something ambitious or want to discuss product, growth, or AI-enabled opportunities, I’m always open to conversations.

Experience

  • Owner at CH Ventures FlexCo
    Jan 2026 - Present · 7 mos

  • Co-Founder at AVIMBU
    Jan 2024 - Dec 2025 · 2 yrs

    At AVIMBU, we design and build MVPs and custom software for desktop and mobile, with a strong focus on AI solutions. Our work includes creating custom LLMs, automating processes, and improving workflows through intelligent tools. We work closely with clients from the first idea to launch, offering technical expertise, guidance, and ongoing support to ensure their products are effective, reliable, and ready for whatever they need to tackle next.

  • CEO & Co-Founder at Halea
    May 2025 - Nov 2025 · 7 mos

    At Halea, we’re building a guardian for the developers of tomorrow - where AI increasingly writes code, assembles features, and guides the development process. This speed demands stronger quality assurance to ensure no new issues slip through. Our first step is a platform that watches over real user flows and detects problems without requiring any tests to be written, using session analysis and intelligent pattern recognition to spot deviations from expected behavior. We work closely with users to refine our approach, making Halea a dependable safeguard for the products they build.

  • Lead iOS Developer at Rocket Apps GmbH
    Aug 2021 - Jun 2025 · 3 yrs 11 mos

    Building and maintaining an iOS-App portfolio as the first employee of the company. Managing employees and freelancers expanding our portfolio. Used technologies: - Swift / iOS

  • Mobile Application Developer at Research Industrial Systems Engineering (RISE)
    Sep 2019 - Jul 2021 · 1 yr 11 mos

    - Development and architecture design of modular iOS and Android applications - Technical consulting in implementation of SDK - Lectures on Mobile Software Testing and Voice User Experience at Technical University Vienna Used technologies: - Swift / iOS - Kotlin / Android - DevOps (GitLab, Atlassian Stack)