B2B SaaS Account Growth & Upsell Manager

Proton is seeking an Account Manager to grow our B2B business by expanding relationships with current customers, driving product adoption, and identifying upsell opportunities. You will work with Account Management leadership and Sales to increase revenue across Proton’s product suite and ensure customer success.

The role requires 1–3 years in account management or customer-facing roles, with a preference for B2B SaaS experience. English fluency is required; French or German is a plus.