Product Owner - US-timezone

Salary: 20 000 - 25 000 PLN net + VAT (B2B) or 16 000 - 20 500 PLN gross (CoE)

We don’t follow best practices, we set them!

Callstack supports and inspires top industry leaders in shipping better digital products and services to their users. We are a team of high-level experts in cross-platform development and consultancy. We co-create the technology, collaborate with the Meta team on setting the direction for the future growth of the React Native framework, and much more!

We are recognized in the React Native Community as contributors to Open Source projects , organizers of React Universe Conf , as well as speakers at international conferences. We also organize regular community meetups in our HQ in Wrocław, Poland.

We truly believe that you can get the best out of people when you give them a chance to participate and develop. At Callstack you are the one to decide in which area you want to grow, you’ll have an individual self-development budget to empower your competencies and gain new skills. Our goal is to give every employee the opportunity to speak up and introduce their ideas to build the future together.

Join us and work with the TOP Silicon Valley and Fortune 500 companies in the USA!

We're looking for a Product Owner to translate product vision into actionable, high-quality user stories for development teams. In this role you will be the voice of the customer, bridging the gap between stakeholder expectations and technical execution. You'll collaborate directly with our US‑based client, operating within US adaptive hours (Monday - Friday 12:00–20:00 CET) , and champion both project delivery and agile execution.

As a Product Owner you will

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Write clear, comprehensive user stories with detailed acceptance criteria, user journeys, and relevant design and architectural specifications.

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Define and uphold a strict Definition of Ready (DoR) and Definition of Done (DoD) to ensure clarity and the highest quality throughout the development lifecycle.

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Prepare and lead engaging Sprint Demos for stakeholders, showcasing the team's achievements and gathering valuable feedback.

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Act as the final gatekeeper for sprint deliverables , signing off on user stories and bugs to confirm they meet all acceptance criteria.

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Embrace a data-driven approach by defining success metrics (KPIs, ROI) and aligning with stakeholders on product impact goals.

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Lead requirements gathering workshops (Inspect Phase) with technical experts and stakeholders to elicit business needs and mitigate gaps.

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Conduct backlog refinement sessions , breaking down epics into manageable, well-defined stories and mapping all dependencies.

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Collaborate closely with the Scrum Master and development team during PI Planning and throughout sprints to manage priorities, resolve blockers, and ensure a high story completion rate.

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Champion a customer-focused mindset , deeply understanding user pain points and ensuring they are addressed in the product backlog.