Inside Sales Manager (f/m/d)- Fintech Startup with Serial Entrepreneurs

We previously co-founded and scaled Viafintech (Barzahlen) to more than 100 employees, building one of Germany’s leading FinTech companies with operations across 17 markets in Europe and the US. In 2021, Viafintech was acquired by the NYSE-listed Paysafe Group in a three-digit million-euro transaction.

Finperks is our next venture.

Founded in summer 2025, Finperks is building a unified infrastructure for prepaid products, including gift cards (e.g. Apple, Amazon, Google), airtime, and eCash, accessible through a single API. Our goal is to simplify a fragmented prepaid value chain and enable businesses to integrate and distribute prepaid products more efficiently.

Within the first months, we have onboarded 700+ brands and already built a solid customer base. The prepaid market is substantial, with annual volumes of approximately €600bn today, expected to grow significantly to €1.800bn by 2028.

By reducing the number of intermediaries and connecting brands more directly with clients, Finperks aims to improve efficiency and global reach. While prepaid products are currently concentrated in developed markets, we see long-term potential for broader global adoption, including emerging markets.

We are a highly growing company with a current team of 8 people based in Berlin-Charlottenburg, combining experienced team members from our previous company with new hires. We value ownership, collaboration, and a pragmatic, low-ego working style.

Join us early and help build a sustainable, global prepaid infrastructure.

As an Inside Sales Manager, you are responsible for closing small to mid-sized clients and supporting the Business Development team in executing and closing large, high-value enterprise partnerships. You work closely with Founder Sebastian Seifert, the Business Development Managers, and internal stakeholders to drive revenue and ensure a smooth sales execution across deal sizes.

Your role combines hands-on closing responsibility with strong execution support in complex partnership deals. Your key responsibilities include:

• Owning the end-to-end sales process for small to mid-sized customers, from inbound and outbound outreach to demos, negotiations, and closing.
• Qualifying inbound leads and routing high-potential enterprise opportunities to the Business Development team.

• Supporting the Business Development Manager in large-value partnerships by:

• Preparing pitch decks, demos, and commercial proposals
• Following up with stakeholders and coordinating next steps

• Supporting negotiations, contracting, and onboarding processes

• Conducting product demos and explaining Finperks’ API-based prepaid infrastructure in a clear, structured, and customer-oriented way.
• Maintaining accurate pipeline documentation, deal tracking, and forecasting in the CRM.
• Collaborating closely with product, tech, and operations to ensure smooth handovers from sales to implementation.
• Continuously gathering customer feedback and market insights to improve sales messaging, positioning, and processes.

Must-haves:

• A hands-on, execution-driven mindset with strong motivation to close deals and move opportunities forward.
• Structured and reliable working style, with the ability to manage multiple parallel sales conversations.
• Strong communication skills and confidence in customer-facing interactions, including demos and negotiations.
• High level of resilience and persistence in sales situations, including follow-ups and rejections.
• Willingness to work closely with founders and senior team members in a fast-moving startup environment.
• Very good English skills for professional business communication.

Nice-to-haves:

• First experience in inside sales, B2B sales, account management, or customer-facing roles in a startup, SaaS, fintech, or platform environment.
• Experience working with APIs, technical products, or digitally driven business models.
• Experience supporting enterprise or partnership sales processes (e.g. proposal preparation, stakeholder coordination).
• German language skills are a plus; French, Spanish, or Italian are a strong advantage.

• Close collaboration with the founders and direct exposure to strategic enterprise partnerships
• Clear closing responsibility and tangible revenue impact from day one.
• Fast learning curve across sales, partnerships, and product in a complex B2B environment.
• Opportunity to grow into a senior sales, enterprise, or business development role over time.
• High autonomy and ownership in a small, ambitious team.
• Competitive compensation with performance-based upside.

Office Policy: Hybrid. We don’t have clear rules, but generally expect 80% attendance in the office. Not because of control or distrust, but because of speed, learning, and context compound when people work side by side.