About Joost
Product Leader with 7+ years of experience building and scaling digital products across startups and consulting, including 3 years at Deloitte Digital. Proven track record of driving end-to-end product development from 0→1 and scale in fintech and healthcare, combining strong business acumen with hands-on experience in UX and engineering. Experienced in leading cross-functional teams, aligning senior stakeholders, and delivering impactful solutions in complex, international environments.
German
Native or bilingual
English
Fluent
Can work on-site
Berlin (up to 50km)
Experience
- Deloitte Digital GmbHStudio Lead / Senior Product ManagerNovember 2022 - November 2025 (3 years)Berlin, Germany• • Owned and led the end-to-end development of digital products, leading cross-functional and international teams of up to 10 across product, design, and engineering• • Delivered a digital solution to streamline real estate inspection and valuation processes, leading user research, workshops, and multi-organization rollout• • Defined MVP and product vision for a global healthcare platform, aligning stakeholders across key international markets and successfully launching the initial product version• • Co-led discovery and delivery of a cross-platform digital product (web & mobile), integrating emerging technologies such as AR and AI to enhance user experience
- Vantik GmbHFintech Product Manager & Software DeveloperDecember 2019 - October 2022 (2 years and 10 months)Berlin, Germany• • Played a key role in building and scaling a mobile-first investment platform, contributing to the growth of the user base to 10,000+ users• • Co-owned core product areas including onboarding, portfolio management, and user engagement, driving improvements in activation and retention• • Co-led end-to-end product development from discovery to launch in a fast-paced startup environment, working closely with engineering and design• • Translated user insights into product features through continuous discovery, user research, and iterative delivery, while contributing hands-on to implementation using Node.js and Vue.js
- Sapaso GmbH (Insolvent)Fintech Product ManagerApril 2019 - August 2019 (4 months)Cologne, Germany• • Supported development of B2B fintech software, focusing on quality assurance and product consistency• • Facilitated agile processes with an external development team• • Contributed to internal process digitalization in customer support and supported fundraising activities
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Education
- Master in ManagementIE Business School2018Master in Management
- Bachelor in General ManagementCologne Business School2016Bachelor in General Management
Certifications
- Scrum MasterScrum.org2025
- PSPOScrum.org2025