Job Opportunities

We are looking for a Sales Manager (m/f/d) to actively drive our growth. You are not just an advisor, but someone who closes deals, follows up on opportunities, and enjoys acquiring new customers – including through outbound and cold outreach.

If you like taking ownership, see sales as a craft, and want to make an impact in a growing SaaS/energy tech environment, you’ll fit right in.

Start: As soon as possible
Location: Düsseldorf and partially remote
Department: Sales / Business Development

Key facts at a glance

• Focus on new customer acquisition and closing
• Mix of inbound and active outreach / cold calling
• Performance-based compensation with an attractive variable component

Your responsibilities

• Proactive acquisition of new customers via phone, email, LinkedIn, and other channels
• Qualification and structured follow-up of leads
• Conducting product demos and sales conversations
• Owning and managing your sales funnel through to closing
• Building and maintaining long-term customer relationships
• Close collaboration with product, marketing, and management

Your profile

• Experience in B2B sales, ideally in SaaS or software-related environments
• You proactively approach potential customers and are comfortable with cold outreach
• Strong closing skills, initiative, and a good sense for customer needs
• Structured and independent working style, ideally with CRM experience
• Fluent German and strong English skills (written and spoken)
• Bonus: Experience in energy, heating, or tech-related industries

What we offer

• Flexible working hours, flextime, part-time possible
• Performance-based compensation with strong growth potential
• High level of ownership and room for impact
• Fast decision-making and close collaboration within the team
• Meaningful work on a product with real impact in the energy sector

Apply now 📧

Send your CV, relevant sales experience, and salary expectations to m.wirtz@npro.energy. We look forward to hearing from you!

Do you enjoy programming, have a technical background in energy systems, and want to actively contribute to the energy transition? Then become part of our team at nPro Energy – an innovative software company with roots at RWTH Aachen University. We're looking for a dedicated developer with an understanding of thermal energy systems and a passion for coding to join us as soon as possible.

Start: As soon as possible
Field: Development of backend, frontend, and modeling approaches

The essentials at a glance

• Up to 100% remote work – location-independent and flexible
• Full-time role with responsibility and growth potential
• Technical background (e.g. energy engineering, mechanical engineering, process engineering)
• Solid Python skills required
• Salary range: €45,000 – €65,000

Your responsibilities

• Further development of our simulation and calculation logic in the backend (Python), e.g. for heat networks and heat pumps
• Building and maintaining REST APIs for integration with our web application
• Developing and optimizing the frontend using React, e.g. for interactive user interfaces, result visualizations, and input forms
• Implementing technical features from the data model to graphical output
• Close collaboration with the founder and product team to define and implement new features

Your profile

• Degree or professional experience in energy engineering or a similar field
• Solid knowledge of Python (including NumPy or Pandas)
• Basic understanding of energy systems and system simulations
• Structured, independent, and reliable working style
• Good German and English language skills

What we offer you

• Innovative environment: You’ll develop software that’s used in real-world applications
• Flexibility: Flextime model, transparent time tracking
• Autonomy: High responsibility and space for your own ideas
• Team culture: Flat hierarchies, open communication, personal development

Apply now 📧

Send your CV, relevant experience, and salary expectations to m.wirtz@npro.energy. We look forward to hearing from you!

Are you studying energy engineering or a related field and want to gain real-world experience alongside your studies? Then join nPro Energy – an innovative spin-off from RWTH Aachen focused on digital planning solutions for heat networks and urban districts.

Your tasks (depending on your interests & skills)

• General programming tasks in Python or web technologies
• Data analysis, preparation, and research for our software databases

What you bring

• Good to very good academic performance in energy engineering, mechanical engineering, or a related field
• Initial programming experience (ideally in Python)
• A self-reliant, reliable, and structured way of working

What we offer you

• Up to 100% remote: Work flexibly from anywhere – perfect alongside your studies
• Real-world relevance: Work on actual projects and contribute your ideas
• Skill development: Improve your Python and data analysis skills
• Team spirit: Young, friendly team with an innovation-driven culture
• Perspective: Grow with us – e.g., through a thesis project or entry-level position after graduation

Apply now

Send us your CV, current transcript, and a brief note about your interests to m.wirtz@npro.energy. We’ll get back to you shortly!

Do you enjoy interacting with people and want to gain B2B sales experience alongside your studies?
Then join nPro Energy and support our team in acquiring new clients for our software that helps plan sustainable energy systems.

Your tasks

• Identify potential new clients (e.g. planning offices, municipalities, utility companies)
• Initiate first contact via email, LinkedIn, or phone
• Organize and follow up on software demo sessions
• Document activities in our CRM system and contribute to the sales strategy
• Receive onboarding and personal support from an experienced team member

What you bring

• Good to very good academic performance in a technically oriented degree (e.g. industrial engineering)
• Strong communication skills and enthusiasm for customer engagement
• Independent and structured working style
• Native language skills of the country you want to be active (e.g. Germany, Netherlands, France, ...)

What we offer you

• Up to 100% remote: Work flexibly from anywhere – perfect alongside your studies
• Commission: In addition to your base salary, you’ll earn performance-based commissions
• Practical experience: You’ll work directly with clients and receive real feedback
• Coaching & development: Learn how modern SaaS sales processes work
• Team culture: Collaborative, dynamic, and open to new ideas
• Perspective: Show commitment – and grow into a key member of the team

Apply now

Send your CV and transcript along with a short note about your possible start date to m.wirtz@npro.energy. We’re excited to get to know you!

Topic: Development of a structured library for load, price, and temperature profiles and integration into energy system planning software

Your Mission:
When planning energy systems, time-resolved profiles are often required, for example for electricity prices, heat loads, cooling demands, or environmental temperatures. In practice, such data often has to be collected from different sources, processed, and integrated into simulation or planning models. The goal of this thesis is to develop a structured library of typical load and temperature profiles for various applications and integrate it into the nPro software. This includes, for example, electricity price profiles, temperature curves of rivers or wastewater, typical building load profiles, or industrial waste heat profiles. The developed profiles should be researched, documented, and made available within the software.

Your Tasks

• Research typical time series and profiles for energy systems from literature and open datasets
• Process and structure the data (e.g., load profiles, temperature curves, price profiles)
• Develop a clear and structured profile library
• Implement the data structure and functions in Python
• Integrate the profile library into the existing software
• Optional: Visualization and selection of profiles within the software
• Documentation of data sources, assumptions, and usage possibilities

Your Profile

• Studies in energy engineering, mechanical engineering, computer science, industrial engineering, or a comparable field
• Interest in energy systems and data analysis
• Programming experience in Python is a plus
• Structured and independent way of working

What We Offer

• Up to 100% remote work
• Personal supervision by the founder (former research associate at RWTH Aachen University)
• Efficient completion: A clearly defined topic allows you to complete the thesis within an agreed timeframe
• Monthly compensation (for full-time work, 40 h/week) + bonus upon successful completion (for master’s theses)
• A topic with real impact – your work directly contributes to real-world applications

Note: The thesis can optionally be combined with a mandatory internship.

📧 Apply now: Send your CV and transcript of records to m.wirtz@npro.energy – we look forward to hearing from you!

Topic: Development and implementation of calculation modules for the hydraulic design of district heating networks: pump sizing and pressure maintenance systems

Your Mission:
Hydraulic design is a key component in the planning and operation of district heating networks. In practice, aspects such as pressure losses, pressure maintenance systems, and pump sizing must be considered. However, many planning tools only represent these aspects in a simplified way. The goal of your thesis is to research existing calculation approaches from the technical literature (some literature is already available), derive suitable models for pump sizing and pressure maintenance systems, and integrate them into the nPro software.

Your Tasks

• Familiarization with the fundamentals of hydraulic design of district heating networks
• Literature research on calculation approaches for pressure maintenance and pump sizing
• Implementation of formulas and models in Python
• Integration of the calculation modules into the existing software
• Integration and visualization of pump curves
• Optional: Selection of real pump models from manufacturer data
• Testing and validation of the developed modules using an example district heating network
• Documentation of methods, assumptions, and results

Your Profile

• Studies in energy engineering, mechanical engineering, process engineering, industrial engineering, or a comparable field
• Interest in thermal energy systems and district heating networks
• Basic understanding of fluid mechanics or hydraulic systems is an advantage
• Programming experience in Python is a plus

What We Offer

• Up to 100% remote work
• Personal supervision by the founder (former research associate at RWTH Aachen University)
• Efficient completion: A clearly defined topic allows you to complete the thesis within an agreed timeframe
• Monthly compensation (for full-time work, 40 h/week) + bonus upon successful completion (for master’s theses)
• A topic with real impact – your work directly contributes to real-world applications

Note: The thesis can optionally be combined with a mandatory internship.

📧 Apply now: Send your CV and transcript of records to m.wirtz@npro.energy – we look forward to hearing from you!