How to apply for Mobiler Trainer Wärmepumpe (m/w/d) - Deutschlandweit

About 1KOMMA5°

1KOMMA5° builds the Heartbeat energy software platform, which connects customer photovoltaic, battery storage, heat pumps, and charging stations into a virtual power plant. The company also offers a one-stop shop for buying and installing intelligent energy systems, so households can live, heat, and travel climate-neutrally. Working here means contributing to Europe's energy transition through both software and hands-on installation services.

About the role

As a mobile heat pump trainer, you deliver existing training content on installation, commissioning, and fault diagnosis for heat pumps, both in theory and practice. You onboard new partner companies at construction sites or in the training facility and travel regularly across Germany to wherever partners need you. You also ensure quality assurance on site, making sure training standards are met.

A typical day

A typical day might start with travel to a partner construction site or the training facility, where you deliver a hands-on session on heat pump commissioning or fault diagnosis. You could then check that the partner's work meets quality standards and answer technical questions. Some days may be spent at a different location, depending on where partners need training.

Who 1KOMMA5° is looking for

• Experience installing, commissioning, and troubleshooting heat pumps, ideally in residential or small commercial settings.
• Comfortable delivering hands-on training and explaining technical content clearly to partner technicians.
• Willing and able to travel frequently throughout Germany, with a valid driver's license and flexibility for changing locations.
• Self-organized and independent, since the role is remote and you manage your own schedule across partner sites.

Tips for this application

• Highlight specific heat pump models or brands you have worked with, and describe any training or onboarding you have delivered to technicians or partner companies.
• Mention your willingness to travel nationwide and give examples of previous mobile or field-based roles.
• Reference 1KOMMA5°'s Heartbeat platform and virtual power plant concept in your application to show you understand how heat pumps fit into their energy system.
• Emphasize any experience with quality assurance on construction sites, since the role includes checking that training standards are met.
• If you have worked with partner networks or installers before, describe how you helped them adopt new processes or technologies.

What to cover in your cover letter

Explain your hands-on experience with heat pump installation, commissioning, and fault diagnosis. Describe concrete examples of training or coaching you have done, especially for partner companies or field technicians. Show that you understand 1KOMMA5°'s one-stop-shop model and how heat pumps connect to their Heartbeat software. Confirm your availability for nationwide travel and remote work.

Research before applying

• Read about 1KOMMA5°'s Heartbeat software and how it connects photovoltaic, storage, heat pumps, and charging stations into a virtual power plant.
• Look up the company's one-stop shop offering for energy systems and understand the installation process for heat pumps.
• Check recent news or press releases about 1KOMMA5°'s expansion, partnerships, or technology updates.
• Find out which heat pump brands or models 1KOMMA5° installs, if publicly available, to tailor your technical examples.

Likely interview topics

Based on the job description, expect questions about:

• Walk through a time you diagnosed and fixed a fault in a heat pump system.
• How would you structure a training session on heat pump commissioning for new partner technicians?
• What do you know about 1KOMMA5°'s Heartbeat platform and virtual power plant, and how do heat pumps fit in?
• How do you handle quality assurance when training partners at different construction sites?
• Describe your experience with remote work and frequent travel, and how you stay organized.

Common mistakes to avoid

• Do not apply without mentioning specific heat pump experience, since the role requires practical knowledge of installation, commissioning, and fault diagnosis.
• Avoid saying you are unwilling to travel nationwide or work remotely, as these are core parts of the job.
• Do not ignore the training aspect of the role by only focusing on technical installation skills; show you can teach others.