As a (Senior) Portfolio Manager Poland, you will:

• Create a customer experience that sets us apart from competition and increases customer satisfaction

• Become the sparring partner of our clients that understands client priorities and feeds this into Entrix

• Continuously showcase the exceptional value Entrix delivers to customers and jointly develop towards our vision

• Help customers stay up to date on market changes and strategic opportunities

• Oversee the relationship between Entrix and a specific set of customers to ensure a professional and synchronized communication

• Support the technical onboarding of BESS assets, including stakeholder coordination and go-live

• Act as the first point of contact for the customer for special requests and sparring for strategic questions on their existing and upcoming BESS assets

• Collaborate with cross-functional teams to further professionalize and improve the Portfolio Management function

• Identify and lead opportunities to expand our work with existing customers

• Drive continuous improvement of customer-facing processes and communication

We’re looking for someone who is deeply proactive and accountable - someone who doesn’t just identify problems but owns them, and is energized by bringing clarity and progress to complexity.

Mandatory Requirements

• A degree or equivalent in Business, Economics or Engineering

• 3-5 years of experience in customer-facing roles (e.g. Sales, Project Management, Key Account Management)  in the energy industry

• Track record of managing relationships with senior external stakeholders (e.g. senior leadership, C-suite, commercial directors)

• Excellent problem-solving skills, clear sense of ownership and a proactive mindset

• Experience with data analytics and performance dashboards for asset management

• Solid understanding of–or high willingness to quickly learn–energy asset performance metrics, grid regulations, and trading frameworks

• Strong organizational and communication abilities

• Openness to travel to the client and attend regular events (such as fairs and conferences)

• Fluency in Polish and English (C1 or above)

Skills to Set You Apart

• Experience in BESS or renewable energy project development

• Experience in (key) account management in the Polish energy sector

• Hands-on experience working with cross-functional teams especially with software engineers and data scientists

• Familiarity with agile working methods and tools

• Comfortable handling difficult conversations, managing urgent client concerns, and balancing strategic priorities under tight timelines

This role may not be a fit for you if…

• You’re not comfortable working across teams or having bilateral unprepared conversations with clients

• You prefer routine over dynamic, evolving work environments

• You prefer roles with limited customer and cross-team interactions

• You are not comfortable working in a fast-paced, evolving regulatory and technical landscape

• You are not familiar with the Polish energy landscape and not interested in actively building expertise in the battery storage space

• You look for a pure management position - we’ll need you to be active operationally as well

We are committed to diversity - of all backgrounds and experiences. You don’t need 100% of the preferred qualifications to add incredible value to our team. If you’re passionate about what you could accomplish here, we’d love to hear from you.