Senior Key Account Executive

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🕒 November 25, 2025

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instellix

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2016

☁️ SaaS

💳 Fintech

🤝 B2B

SaaS • Fintech • B2B

instellix is an enterprise-grade monetization and billing platform provider that helps businesses launch, manage, and scale digital business models. The company offers SaaS software for subscription management, usage-based and hybrid pricing, billing automation, payment management, accounting & taxes, and reporting & analytics, with APIs and integrations for fast deployment into existing IT landscapes. Instellix targets B2B customers — including manufacturers, mobility, IoT, and SaaS vendors — and emphasizes compliance, security (ISO 27001), and global tax/invoicing support to enable complex, multi-party revenue models across markets.

📋 Description

• End-to-end management and strategic development of enterprise accounts • Identify growth opportunities by analyzing business models, processes, and billing structures — with a clear focus on delivering real customer value • Develop and implement tailored account strategies across business units, legal entities and regions • Trusted advisor at C‑level — with expertise in subscription models, compliance (ViDA, GoBD, GDPR, BaFin) and digital monetization • Close collaboration with product management and engineering to translate customer requirements into product innovations • Coordinate complex implementation projects and early-adopter programs • Stakeholder management in layered and sensitive organizational structures — from champions to decision makers

🎯 Requirements

• Minimum 8 years of experience in enterprise account management at B2B SaaS companies — ideally in billing, ERP or fintech • Deep understanding of subscription business models, revenue management and digital value creation • Proven track record of growing strategic major accounts and managing complex, consultative sales processes • Empathy, strong analytical skills and credibility at C‑level • Experience with SPIN Selling, stakeholder mapping and agile methodologies • Fluent in German and English, willingness to travel within Europe

🏖️ Benefits

• Innovative product – Work with a leading SaaS platform that is redefining the future of billing and revenue management • Collegial culture – Our company culture is built on reliability, mutual trust, a positive mindset and smart decision‑making • Work–life balance – Up to 100% remote work within Germany and very flexible working hours with no core hours, so you can balance private life and work • Freedom – You and your team will have the space to contribute creative ideas and see them implemented • Team events – Although we are distributed across Germany, we come together for regular team events. Whether sailing on the Alster, action-packed challenges or cozy Christmas dinners — the important thing is that we meet and have fun together.