Join Date
May 2025
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About Christian Hartung
Christian previously founded VOJD, a Lakestar backed, consumer 3d printing venture featured by New York Times, Wired and partnered with super influencers such as Virgil Abloh.
Before, he was an Entrepreneur in Residence at Rocket Internet, where he worked in sourcing and marketing roles with Global Fashion Group (symbol: GFG) and payleven (which was later merged with SumUp).
Before, he was an Entrepreneur in Residence at Rocket Internet, where he worked in sourcing and marketing roles with Global Fashion Group (symbol: GFG) and payleven (which was later merged with SumUp).
Companies & Work

MobileBoost
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Struggling with low E2E test coverage for your mobile app? Short on QA resources?
Our GPT Driver uses AI to automate your mobile app testing, freeing up your team and providing reliable, consistent results. Eliminate tedious maintenance, accelerate release cycles, and ship higher-quality apps with GPT Driver.
Trusted by mobile industry leaders like Duolingo, Spotify, Netflix, Salesforce and Groupon.
Check out Duolingo's case study about their partnership with GPT Driver and how they reduced manual regression testing by 70%: https://blog.duolingo.com/reduced-regression-testing/