As a Senior Portfolio Manager, 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 German 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 German 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

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.

• Competitive Compensation Package: Including salary, benefits and options

• Professional Development: Annual development budget of 3,000 € for coachings, trainings, books, etc.

• Health & Sport Subsidy: Company subsidised sports facilities membership

• Public Transportation Subsidy: Monthly subsidy to your public transport ticket

• Lunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers

• Regular Team Events: Knowledge Sessions, Afterwork, Sports, Offsites, Halloween, Pride Month, etc.

Anton Müllner - Portfolio Management Lead - LinkedIn

Hi there!
My name is Anton, and I’m the Lead of the Portfolio Management function at Entrix. Together with my team, I’m responsible for all of our existing customers, creating an exceptional experience for them - from regular interactions about the latest trading performance to sparring about the next BESS asset to be developed jointly. We’re excited to grow and would love to see your application!

What drives me is the high level of responsibility, joint excitement and the trust that our customers place in us. The professionalism and personal connection that can develop between Entrix and our customers is what excites me. At Entrix, Portfolio Management is responsible for all customers that generate revenue — our communication and actions have a true impact on the success of our partnerships and both of our companies.

I believe in extreme ownership, clear responsibility, and having each other's back. A growth mindset, trust, integrity and open communications are the principles I lead by. My goal is to create a team where everyone feels empowered to develop and thrive.

If you’re passionate about driving meaningful change in the energy space and contribute to our joint success in a dynamic environment, we’d be thrilled to have you on board.

Let’s make the energy transition real—together.