19.03.2026 aktualisiert
100 % verfügbar
Senior Product Manager | API Integrations, SaaS
Berlin, Deutschland
Deutschland +52
MA Economicsinfo: Deutschland, Österreich, Schweiz, Großbritannien, Spanien, Italien, Liechtenstein, Frankreich, Slowakei, Ägypten, Albanien, Algerien, Armenien, Australien, Belgien, Dänemark, Finnland, Georgien, Griechenland, Hongkong, Indonesien, Irak, Irland, Jordanien, Katar, Kroatien, Kuwait, Lettland, Litauen, Malaysia, Malta, Marokko, Monaco, Niederlande, Norwegen, Polen, Portugal, Saudi Arabien, Schweden, Singapur, Slowenien, Thailand, Türkei, Yemen, Libanon, Serbien, Bosnien-Herzegowina, Vietnam, Montenegro, Iran, Syrien, Palästina, Spanien (Kanarische Inseln)
Skills
A/B TestingUser Experience (UX)APIsAgile MethodologieKünstliche IntelligenzAtlassian JiraAuditsBusiness To BusinessGeschäftsplanSaasContent-MigrationCustomer Value PropositionData IntegrationData MigrationWirtschaft
Data informed (MA in Economics) + User Obsessed (UX Certification) + 10 years hands-on experience
I work directly with founders, CEOs, and CTOs, as well as cross-functional teams, to guide products from discovery through launch and growth. I have led platform and integration initiatives for global wellness brands, hotel technology ecosystems, and marketplace environments, translating business challenges into clear roadmaps, delivery plans, and live features. I offer a balance of strategic thinking and hands-on execution to drive results.
Clients hire me when:
✅ They need a research-driven strategy to decide what to build next, or to fix why a product isn't selling.
✅ They've got a deadline and need direction on how to move faster without sacrificing value.
✅ Their platform depends on integrations (APIs, distribution systems, migrations).
Real-life examples:
➜ MedKitDoc (Germany): Took over a team weeks before a contract-critical deadline. Shipped the product on time and secured the key deal.
➜ Amptify (USA): Repositioned a patient app into a complete B2B platform for medical professionals (teleclinic, booking, marketplace). This transformation contributed to Neurotone AI's acquisition.
➜ Jay Shetty Genius (USA): Built onboarding and feature adoption through user interviews, A/B testing, and JTBD research. Managed migration of data and users to the new platform.
What I bring:
- I have deep SaaS experience in hospitality technology and HealthTech.
- I stay lean in strategy and agile in execution to move fast without losing direction or quality
- I've led multiple API and system integrations from start to finish.
- I take ownership end-to-end from research and discovery through to launch.
- I keep things simple, transparent, and on track without fuss.
What Clients Say:
"Katarzyna has some of the sharpest product instincts I've worked with. She has a rare ability to identify exactly the right levers to drive real user value, not just surface metrics. At Breadkrumb, she played a key role in optimizing our user funnel, helping us lift activation rates from 33% to 46.9%. What sets her apart is how she operates: data-driven and direct, but always collaborative and respectful in how she brings teams along. Any product team would be lucky to have her."
Founder & CEO, Breadkrumb
"Kasia led a high-stakes migration of thousands of members and hundreds of content pieces. She was consistently calm under pressure, and her data-driven approach was invaluable to our success. A skilled, thoughtful, and solutions-oriented product manager." Product Lead, Genius by Jay Shetty
"Her product and UX ability were critical - she took us from just an idea to full delivery. We'd hire her again in a heartbeat." CEO, BodyBrand LLC
Let's discuss how I can help with your product challenges and deliver results.
Looking forward to hearing from you.
Kasia
Sprachen
DeutschGrundkenntnisseEnglischverhandlungssicherPolnischMuttersprache
Projekthistorie
- Led discovery work, JTBD interviews, surveys, A/B and experiments, and translated insights into feature and messaging tweaks. - Improved onboarding flows & behavioral nudges to boost engagement and retention. - Led transition from outsourced dev agency to build and manage the internal engineering and QA team, and guided the development of the new features.
- Led UX and product strategy for teleclinic, booking system, and marketplace features that expanded a patient-focused app into a complete B2B offering for audiologists. - Coordinated requirements, user journeys, and technical specs for seamless integration and compliance.
- Took over product leadership 6 weeks before a contract-critical launch, managed Agile team, sprints, and ceremonies, and secured successful deployment under tight deadlines.
- Prioritised features and functionalities, led QA; collaborated with regulatory, engineering, and design teams.
- Research an interview
- Prioritised features and functionalities, led QA; collaborated with regulatory, engineering, and design teams.
- Research an interview