B2C Sales Development Representative (m/w/d)

About StackFuel

StackFuel helps people and companies build practical skills for the AI era. Since 2017, the company has trained learners with real business cases, coding exercises, and personal mentoring so they can work confidently with data and AI.

The offering serves both sides of the market: enterprises such as Mercedes-Benz, IAV, and Telefónica use the training to upskill teams and stay competitive, while thousands of private individuals use the programs as a pathway into new careers, often through funded learning opportunities.

Since January 2026, StackFuel has been part of Multiverse, Europe’s only EdTech unicorn. Together, the goal is to equip 100,000 people in Germany for AI. The company is expanding quickly and is currently based in Berlin with around 60 employees; the team is expected to more than double within the next 12 months.

Role overview

In this position, you will be a key member of the sales team and help ensure a steady flow of qualified appointments for the inbound sales function. Your main responsibility is to screen and qualify leads systematically, with a particular focus on leads from social media, and to book meetings for the sales team.

Your communication skills, customer focus, and structured approach will directly support the conversion of prospects into satisfied customers. The role is designed for someone who wants to strengthen lead generation and qualification in a fast-moving environment.

Key responsibilities

• Serve as the first point of contact for incoming leads and assess them systematically for the sales team.
• Reach out to prospective customers proactively by phone, email, and social selling.
• Identify lead needs and compare them with the company’s solution offering.
• Pass qualified leads to the appropriate sales colleagues, such as account executives, with complete CRM documentation.
• Build and maintain a strong sales pipeline for the wider sales organization.
• Schedule meetings and demos for sales colleagues and help ensure a strong attendance rate.
• Use the CRM every day to record conversations, activities, and follow-up actions.
• Work closely with marketing and sales to align campaigns and improve lead quality.
• Track market and industry trends to identify new target segments and outreach approaches.
• Take on smaller projects related to lead generation or process improvement when needed and contribute positively to team motivation.

Candidate profile

Applicants should be comfortable speaking with prospects, working in a structured way, and contributing to a sales environment that values initiative and learning.

Requirements

• Initial experience in sales or a similar field, such as telemarketing, call center work, or inside sales, is helpful; career changers are welcome.
• Basic knowledge of phone outreach and email-based prospect communication.
• Confident, friendly, and professional communication style, both over the phone and in writing.
• Ability to uncover interest and need through clear, simple questioning.
• First-hand experience with CRM tools is an advantage, for example creating leads, writing notes, and planning follow-ups.
• Careful and well-structured documentation of conversations and activities.
• Reliable, organized way of working, even when handling many repetitive tasks.
• Strong willingness to learn new sales arguments, product knowledge, and internal processes quickly.
• Confident use of Outlook, Excel, and common office tools.
• Strong interpersonal skills, including listening, probing, persuading, and motivating others.
• High learning agility and a genuine desire to keep developing professionally.
• Strong German language skills in speaking and writing; English is a plus.

What the company offers

• A solution-oriented, data-driven working style with open feedback and a strong team spirit.
• Two elected trustees from the team who act as neutral and confidential contacts for questions or concerns.
• Early ownership and the chance to contribute ideas, shape processes, and influence how the team works.
• A hybrid setup, with most roles working together in the office three days per week.
• Work from anywhere in the EU, EEA, or Turkey for up to 10 days per year.
• Regular team exchange, seasonal celebrations, and a well-stocked kitchen that supports a lively workplace culture.
• Access to online training to build specialist knowledge and grow into an expert in data and AI.

Additional information

Applications are welcome regardless of gender, gender identity, sexual orientation, origin, age, or disability.

If you enjoy speaking with people, like working in a structured way, and want to build a career in sales within a dynamic environment, this role is a strong fit.

Working model

This is a full-time office-based role in Berlin with a hybrid work arrangement.