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Junior Portfolio Manager (d/f/m)

Become a Junior Portfolio Manager at Entrix in Munich, supporting battery energy storage portfolios and client relations. This role offers virtual share options, professional development budget, and a dynamic team environment focused on renewable energy growth.

On-site Full time UTC+01:00 Updated today
Salary
€55,000–70,000 /year

Applies on entrix.jobs.personio.de

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Join us on our journey to a smart and sustainable energy future!

We are seeking a proactive and driven Junior Portfolio Manager in Munich. You will support our battery energy storage system (BESS) portfolio, managing key client relationships and creating value through insight, connection, and innovation to drive customer success and growth.

  • Location: Munich, Germany
  • Employment Type: Full-Time, indefinite term
  • Salary Range: € 55.000 - 70.000 per year gross
  • Working Mode: Office first set-up
  • Language Requirement: At least C1 Level English and German
  • Ideal Starting Date: October 2026

Your Responsibilities

As a Junior 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
  • 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
  • Support the Portfolio Management team in preparation of key customer touchpoints and process improvements

Your Profile

We're looking for someone who is deeply proactive - 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
  • Excellent problem-solving skills, clear sense of ownership and a proactive mindset
  • High willingness to quickly learn-energy asset performance metrics, grid regulations, and trading frameworks
  • Strong organizational and communication abilities
  • Comfortable working with data (Excel required; Python/SQL is a plus)
  • 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

  • 1-2 years of experience in customer-facing roles (e.g. Sales, Project Management, Key Account Management) in the German energy sector
  • Hands-on experience working with cross-functional teams especially with software engineers and data scientists
  • 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 prefer highly repetitive tasks without analytical depth
  • You are uncomfortable working with numbers, systems, and data
  • You are not comfortable working in a fast paced environment
  • You prefer to work alone and avoid human interaction

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.

Your Benefits

  • Virtual Share Options: We offer virtual share options to all our employees
  • Professional Development: Annual development budget of 3,000 € for coachings, training, books, etc.
  • Health & Sport Subsidy: Company subsidised sports facilities membership
  • Jobticket benefit with salary conversion
  • Lunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers
  • Work Equipment: Mac Book or Windows Laptop and ergonomic workplace
  • Regular Team Events: Knowledge Sessions, Afterwork, Sports, Off-sites, etc.

A Short Note from Your Future Lead

Anton Müllner - Portfolio Management Director - 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.

Best regards,
Anton

Your Contact in our People Team

If you have any questions, feel free to send us an email to [email protected].

We are looking forward to receiving your application!

Pay & benefits

€55,000–70,000 /yr
Equity Learning budget Wellbeing Commuter benefits Meal allowance

About this role

Posted
6 Oct 2026
Updated
6 Oct 2026
Job type
Full time
Workplace
On-site
Sectors
Working hours
UTC+01:00
Experience
Mid level

About Entrix GmbH

Company Overview

Name

Entrix GmbH

Headquarters

Munich, Germany

Founded

2021

Size

Approximately 80 employees (source: pitchbook.com)

What They Do

Entrix GmbH is a Munich-based company specializing in AI-driven software and trading services, focused on optimizing battery storage systems and flexible energy solutions in European electricity markets (source: entrixenergy.com). The company operates as an energy trader and market participant with an emphasis on battery storage optimization rather than generation, maintaining offices in Munich, Warsaw, Milan, and Madrid, and active in Germany, Poland, Italy, Spain, and Portugal (source: entrixenergy.com). Entrix offers a comprehensive range of services including consulting, technical planning and integration, onboarding, continuous optimization, as well as 24/7 operational support, monitoring, reporting, billing, and settlement (source: entrixenergy.com). Its core technological expertise lies in proprietary algorithms, AI-powered trading, battery control, and market-forecast-driven optimization for large-scale storage and hybrid systems (source: blog.entrixenergy.com).

As a flexibility trader and European market leader in trading flexible energy systems, Entrix manages over 4.5 GW and 13 GWh of capacity with 103 battery storage facilities under contract (source: entrixenergy.com). Its client base includes project owners, infrastructure investors, utilities, and other asset holders, featuring notable partners such as Encavis and MEAG (Munich Re) (source: personio.com). Entrix distinguishes itself through an end-to-end service model that combines trading operations, technical integration, and market expertise across multiple European electricity markets (source: entrixenergy.com).

Projects & Track Record

Entrix is recognized as a pioneer in battery optimization in Germany and has been managing one of the country’s first large-scale storage projects since 2022 (source: personio.com). Its portfolio includes over 70 systems, comprising standalone battery storage and solar-coupled storage solutions (source: entrixenergy.com). Contracted capacity reached 3 GW / 8.5 GWh by 2025, with 2 GW expected to be live and operational by 2026 (source: entrixenergy.com).

Key projects include the optimization agreement with Low Carbon for the Przeworsk battery storage project in the Podkarpackie Voivodeship, Poland (source: entrixenergy.com). Additionally, Entrix optimizes and markets a 50 MW / 100 MWh capacity for MW Storage (source: entrixenergy.com). The company’s expansion spans Germany, Poland, Italy, Spain, and Portugal, supported by local teams in each country (source: entrixenergy.com).

Recent Developments

In March 2026, Entrix secured a €43 million funding round involving investors such as Arvantis Group, Allianz X, BNP Paribas Asset Management, Abacon Capital, Enpal B.V., and AENU (source: preqin.com). These funds support the company’s expansion since its founding in Munich in 2021 (source: blog.entrixenergy.com).

By 2025, Entrix reported surpassing 3 GW / 8.5 GWh of contracted battery capacity and managing 103 battery storage facilities (source: entrixenergy.com). The company also expanded its market presence into Spain and Portugal, building on earlier entries into Poland and Italy (source: entrixenergy.com).

Press communications position Entrix as a leading European AI-driven optimizer and trader of battery storage systems, with continuous growth in Europe’s core markets (source: entrixenergy.com).

Working There

Entrix primarily offers technical roles in software development and engineering management, focusing on backend development, cloud platforms, optimization platforms, data integration, battery control, automated trading, as well as billing and settlement (source: personio.com). Positions are based in Munich with an office-first approach and full-time permanent contracts (source: personio.com).

Roles require strong English skills and offer salaries ranging from €95,000 to €135,000 for Senior/Staff Software Engineers and €115,000 to €135,000 for Software Engineering Managers (source: personio.com).

The company culture is highly technology-driven, focusing on scaling a market-leading optimization platform for energy storage (source: personio.com).

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Junior Portfolio Manager (d/f/m)
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