SaaS Customer Success & Upsell Specialist

Moss; Greater London; On-site; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Equity

Office breakfasts & Friday demos

Learning & Development Budget

Work from abroad (20 days)

Job summary

Moss is the Finance AI platform for Europe’s mid-sized businesses, empowering finance teams to automate spend management and gain real-time visibility.

Join our Customer Success team in London to drive SaaS revenue through proactive engagement, upsell initiatives, and data-driven guidance that helps customers realise more value from our product.

You will collaborate with product and sales, measure KPIs, and contribute to long-term retention while growing with a fast-moving fintech unicorn.

Qualifications

• Proven experience in a proactive commercial-centric role in a B2B setting.
• Experience upselling products to existing clients.
• Fluent in English (C2).

Responsibilities

• Drive customer engagement and nurture scalable relationships to activate spend management features.
• Identify upsell opportunities and optimize product adoption to increase revenue.
• Measure success with KPIs and provide data insights on renewals and retention.
• Act as Product ambassador, communicating client feedback to inform feature development.
• Pursue process excellence to improve the client journey and long-term retention.

Skills

Customer focus

Upselling

B2B experience

English fluent

Data-driven

Relationship management

Negotiation

Communication

Analytical mindset

Prioritization

Job description

Moss is the Finance AI platform for Europe’s mid-sized businesses, empowering finance teams to automate spend management and gain real-time visibility.

Join our Customer Success team in London to drive SaaS revenue through proactive engagement, upsell initiatives, and data-driven guidance that helps customers realise more value from our product.

You will collaborate with product and sales, measure KPIs, and contribute to long-term retention while growing with a fast-moving fintech unicorn.