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 to ship 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 allow every employee 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 (14 : 00–22 : 00CET) , and champion both project delivery and agile execution.

As a Product Owner you will :

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

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.

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

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

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

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

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

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.

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

You are the right candidate if you have :

Proven professional experience as a Product Owner , ideally in a software development or corporate environment.

Exceptional communication skills , with the ability to work effectively with cross‑functional teams and stakeholders.

Deep understanding of Agile principles and frameworks (SAFe) , with hands‑on experience in backlog management, refinement, and sprint planning.

A strong analytical and data‑driven mindset , with experience in defining and tracking product KPIs.

A genuine passion for understanding customer needs and translating them into functional product requirements.

Demonstrated ability to write clear, concise, and testable user stories and acceptance criteria.

Proactive, curious, and adaptable , with a continuous learning attitude in a fast‑paced setting.

Experience with agile management tools such as Jira.

Strong command of business English language (C1), both written and verbal.

Ability to communicate in Polish language (B2 / C1).

Independence and proactiveness in daily work.

Nice to have :

Professional Scrum Product Owner (PSPO) or Certified Scrum Product Owner (CSPO) certification.

Experience working directly with end‑users and conducting user research.

A background in business analysis or a related field.

What we offer :

24 paid days off & 30 days paid sick leave for B2B contractors

Fully-covered life insurance

Private healthcare for you and your family

Free access to mental health platform - Helping Hand

Multisport Card or monthly allowance for other sports activities

Individual Wellbeing & Development Budget

Monthly lunch allowance

Flexible working hours and the possibility of remote work

Accounting costs refund for B2B contractors

Cool office in Wrocław city center

Magnificent team events and activities

Company-wide workation and team building workshops

Top-notch hardware - Apple devices

Possibility to participate in React Universe Conf

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