Remote Strategic Growth Account Manager (Equity & PTO)

Siena; Greater London; Remote; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Stock options

Unlimited PTO

Growth stipend

Flexible working hours

Job summary

Siena is seeking an experienced Account Manager to own Growth and Strategic accounts after onboarding, leading renewal negotiations and expansions. You will manage executive relationships, run QBRs, and build concrete account plans that pair commercial metrics with clear timelines.

You’ll work at the intersection of customer, sales, and deployment strategy, collaborating with product and engineering to ensure customer ROI and successful adoption of Siena’s core agents.

Qualifications

• 3+ years in account management, CSM, or client-facing commercial roles with technical software solutions.
• Experience renewing and expanding enterprise customers in high-value accounts.
• Hands-on prompt engineering experience and ability to optimize AI responses.

Responsibilities

• Own renewal negotiations and independently identify and close expansion opportunities.
• Build durable executive relationships and maintain a living stakeholder map for each account.
• Lead commercial reviews, account planning, and QBRs with Growth and Strategic accounts.

Skills

Account management

CSM

Executive relationship management

Sales and renewal negotiations

Cross-functional collaboration

Data-driven storytelling

Startup environment

AI/agents knowledge

Tools

CRM tools

Job description

Siena is seeking an experienced Account Manager to own Growth and Strategic accounts after onboarding, leading renewal negotiations and expansions. You will manage executive relationships, run QBRs, and build concrete account plans that pair commercial metrics with clear timelines.

You’ll work at the intersection of customer, sales, and deployment strategy, collaborating with product and engineering to ensure customer ROI and successful adoption of Siena’s core agents.