Head of Portfolio Delivery

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 are looking for an experienced Head of Portfolio Delivery who will own and scale a portfolio of 150–200M PLN in annual revenue, lead the delivery team with 150+ people and act as a bridge between delivery, sales and technical innovation.

In this role you will have responsibility for the delivery in Callstack, managing multiple projects to ensure consistent quality and operational excellence. The Head of Portfolio Delivery holds end-to-end accountability for the portfolio’s P&L. You also build strategic partnerships, navigating complex stakeholder dynamics to ensure project results meet both client and company goals as long as addresses Callstack’s long-term growth objectives.

You will cooperate with the Head of Engineering to adapt deeply technical business value propositions and Head of Customer Success to support pre-sales activities (solutioning) and assure feasibility and profitability of sold services.

This position requires working from our Wrocław office 2-3 days per week.

As a Head of Portfolio Delivery you will be responsible for:

Project Delivery & Financial Health

•

Ensure in-depth understanding of clients' needs, timely delivery of projects, and efficient client communication.

•

Introduce well-proven and adequate project management methodology and standardizing delivery frameworks across the portfolio.

•

Optimize revenue structure and processes across the portfolio.

•

Monitor project profitability, margins, and burn rates to ensure financial targets are met.

•

Track and optimize billable utilization rates across the delivery team.

Client Relationship & Departmental Collaboration

•

Build and maintain positive relationships with client project stakeholders.

•

Support Account Management team in idenfitification and delivery of upselling and cross-selling opportunities. Ensure smooth internal communication on Clients' upselling and cross-selling opportunities and readiness to deliver.

•

Partner with Engineering departments to align delivery standards with technical excellence, release new offerings and manage technical risks.

•

Collaborate with Resourcing and Talent teams for capacity planning, forecasting, and ensuring optimal team allocation.

•

Serve as the final point of escalation for high-priority delivery and stakeholder issues.

Strategy & Governance

•

Contribute to transformation of Callstack.

•

Ensure appropriate adaptation and release of new GTM.

•

Drive CI initiatives.

•

Develop and improve tools and internal processes.

•

Establish and monitor Portfolio Health KPIs (e.g., NPS, On-Time Delivery, Quality Score).

People Management

•

Support the growth and development and supervise performance management processes of people in Delivery Department.

•

Monitor overall team performance.