Strategic B2B SaaS Account Growth Lead

Proton; Paris; Hybrid; EUR 40,000 - 65,000; Full time

Benefits offered by this job

Office first locations

Work from home up to 30%

Stock options

Flexible working hours

Learning & development

Comprehensive health insurance

Retirement savings options

Paid time off

Wellness programs

Job summary

Proton is seeking an Account Manager to support the growth of our B2B business by expanding within our existing customer base. This role focuses on commercial account management — identifying expansion opportunities, increasing product adoption, and building strong customer relationships.

You will work closely with Account Management Leadership and Sales teams to grow revenue across Proton’s product suite, including cross-sell and renewal activities.

Qualifications

• 1–3 years experience in Account Management, Sales, or customer-facing roles.
• Experience in B2B SaaS is a plus.
• Strong communication and relationship-building skills.
• Comfortable with CRM tools and data-driven account strategies.

Responsibilities

• Identify and drive upsell opportunities within existing accounts.
• Support seat expansion and cross-sell of Proton products.
• Maintain and manage a pipeline of expansion opportunities.
• Build relationships with key stakeholders within customer accounts.
• Run regular check-ins and support Quarterly Business Reviews.
• Ensure customers are aware of relevant product features and updates.
• Maintain accurate account records in CRM (HubSpot).
• Collaborate with Sales, Marketing and Product teams on strategy.
• Contribute to process improvement and enablement projects.

Skills

Communication

Relationship building

Negotiation

Organized

CRM

HubSpot

English fluency

French language

German language

Tools

HubSpot

Job description

Proton is seeking an Account Manager to support the growth of our B2B business by expanding within our existing customer base. This role focuses on commercial account management — identifying expansion opportunities, increasing product adoption, and building strong customer relationships.

You will work closely with Account Management Leadership and Sales teams to grow revenue across Proton’s product suite, including cross-sell and renewal activities.