Sales Representative, Part-Time / Working Student

DeWarmte

. Make initial contact with potential customers by phone.

Posted 11/12/2026part-timeDüsseldorf • GermanyEntry LevelWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates strong customer engagement skills through effective communication and rapport-building, with a focus on assessing customer needs and providing tailored solutions. Proficient in using CRM systems and conducting consultation calls or video conferences to enhance customer support.

Highest-signal resume keywords

Customer EngagementCRM System ProficiencyConsultation CallsFluent GermanSales Experience

ATS Keywords

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Applicant Tracking System Keywords

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Soft Skills

Rapport BuildingActive ListeningPersuasivenessStructured Work ApproachEnergy and Resilience

Tools & Technologies

CRM SystemsHubSpot

Industry Keywords

SalesInbound SalesTelephone SalesCall CentersEnergy SectorTelecommunicationsHospitalityTechnologySustainability

About the role

Key responsibilities & impact

Make initial contact with potential customers by phone.
Follow up on and qualify new leads.
Support existing customers with their questions and ensure effective after-sales service.
Record conversations and appointments in the CRM system.
Independently follow up on callback arrangements and outstanding tasks.
Identify customer challenges and share insights with the team.
Support customers primarily by phone and video.
If applicable, schedule appointments for digital inspections and assess whether the heat pump solution is a good fit for the customer.

Requirements

What you’ll need

For this position, we value your way of working more than a specific degree or a certain number of years of professional experience.
You build rapport easily, listen well, ask targeted questions, and can explain information clearly and simply.
Commercial drive and the ability to guide conversations in the right direction and suggest concrete next steps.
Persuasive without being pushy.
Ability to quickly assess customer needs and situations.
Energy and resilience when interacting with different customers on busy days.
Structured, independent approach to work and reliable follow-up on callback arrangements.
Experience in sales, inbound sales, telephone sales, call centers, the energy sector, telecommunications, or hospitality is helpful but not required.
Interest in technology and sustainability.
Experience with consultation calls or video conferences.
Fluent German and good English skills.
Digital skills, such as using CRM systems like HubSpot.
Curiosity and the ability to absorb new information quickly.

Benefits

Comp & perks

27 vacation days (pro rata for part-time employment)
Laptop and mobile phone
A key role in building our presence in Germany
Close collaboration with an ambitious and experienced team in the Netherlands and a close-knit team in Düsseldorf
A dynamic environment where initiative and ownership are valued
Development and career advancement opportunities in a fast-growing company
Work from our Düsseldorf office on Mondays, Wednesdays, and Fridays, and from home on Tuesdays and Thursdays
Team lunches at the office and an annual winter trip with the entire company