Key Account Manager

4Twenty Consulting; San Francisco (CA); Hybrid; USD 140,000 - 190,000; Full time

Benefits offered by this job

Hybrid work

SF office

Generous PTO

Birthday off

Tech allowance

Global exposure

Job summary

4Twenty Consulting partners with a high-growth global AI company to hire a Founding Key Account Manager in San Francisco, owning an established B2B SaaS portfolio and driving renewals and expansion across North America. You will inherit a $1M–$1.5M portfolio, lead strategic relationships with senior stakeholders, and help define the US Account Management playbook as the business scales.

This is a rare chance to shape the function from the ground up, with hybrid SF work, generous time off, a

Qualifications

• Proven experience owning a commercial book of business, renewal targets or expansion quotas.
• Experience negotiating renewals and growing existing accounts.
• Experience with mid-market or enterprise SaaS customers.

Responsibilities

• Own your portfolio: manage an established B2B SaaS customer portfolio to drive retention and revenue growth.
• Lead renewals: oversee annual contract renewals and pricing discussions.
• Drive expansion: identify and close upsell/cross-sell opportunities across teams and regions.
• Build strategic relationships: engage senior stakeholders and decision-makers to demonstrate ROI.
• Protect recurring revenue: address churn risks and implement retention strategies.
• Own the numbers: manage renewal forecasts and account growth plans.
• Shape the function: help establish account management processes and playbooks.
• Collaborate globally: work with Sales, Customer Success, Product and international leadership.

Skills

SaaS sales

Renewals

Expansion

Stakeholder management

Job description

Join a $100M+ AI Business Scaling Across the US

4Twenty Consulting is exclusively partnering with a high-growth global AI company, valued at over $100M, to hire a Founding Key Account Manager as they accelerate their expansion across North America.

This Australian-founded AI business is transforming how leading ecommerce brands create, test and launch digital advertising at scale.

And the growth story is pretty impressive:

5X revenue growth in the last six months

Recently secured significant Series A funding

Targeting 10X ARR growth over the next 12 months

Expanding globally, with offices in San Francisco and Melbourne

300+ brands globally already using the platform

With strong product-market fit, significant VC backing and a rapidly growing customer base, the business is investing heavily in its US operations.

This is an opportunity to join early, own a meaningful commercial portfolio and help build the US Account Management function from the ground up.

The Opportunity

We're looking for a commercially driven Founding Key Account Manager to take ownership of an established portfolio of customers, driving retention, renewals and expansion revenue.

You will inherit an anticipated $1M–$1.5M customer portfolio and play a critical role as the company's earliest customers approach their first annual renewals.

You will also have the opportunity to help define the Account Management playbook as the US business scales, with genuine scope to progress into a player-coach or leadership position.

• Own your portfolio: Take commercial ownership of an existing book of B2B SaaS customers, driving retention and revenue growth.
• Lead renewals: Manage annual contract renewals, pricing discussions and commercial negotiations.
• Drive expansion: Identify and close upsell and cross-sell opportunities across additional teams, seats, departments and regions.
• Build strategic relationships: Engage senior stakeholders, budget holders and key decision-makers to understand business priorities and demonstrate ROI.
• Protect recurring revenue: Identify churn risks early, address objections and implement proactive retention strategies.
• Own the numbers: Manage renewal forecasts, expansion opportunities and account growth plans.
• Shape the function: Help establish the processes, commercial playbooks and account management strategies that will support the next stage of US growth.
• Collaborate globally: Work closely with Sales, Customer Success, Product and the wider international leadership team.

What We're Looking For

You might currently be an Account Manager, Strategic Account Manager, Commercial CSM or an expansion-focused sales professional.

Ideally, you'll bring:

• Proven experience owning a commercial book of business, renewal targets or expansion quotas.
• A track record of retaining customers, negotiating renewals and growing existing accounts.
• Experience working with mid-market or enterprise SaaS customers.
• Strong commercial instincts and confidence navigating pricing discussions and complex negotiations.
• The ability to engage multiple stakeholders and uncover opportunities for broader product adoption.
• A proactive, data-driven approach to customer retention, account planning and forecasting.
• Experience in a fast-growing startup, scaleup or high-performance SaaS environment.
• High levels of ownership, initiative and a willingness to build rather than wait for established processes.

You don't need an AI, MarTech or AdTech background.

We're far more interested in your SaaS fundamentals, commercial track record and ability to make an impact in a scaling technology business.

If you've consistently grown your portfolio, exceeded renewal or expansion targets and enjoy building long-term customer relationships, we'd love to hear from you.

Why Join?

Series A AI business valued at $100M+, with significant global growth ambitions

5X revenue growth in six months, with major investment in US expansion

Founding US role with genuine influence over the Account Management function

Established customer portfolio, offering immediate commercial ownership and expansion opportunities

Global exposure, working alongside international leadership and a rapidly growing customer base

Potential leadership pathway, with scope to grow into a player-coach role as the team scales

San Francisco office with hybrid flexibility

Generous paid time off and your birthday off

Technology allowance

You'll join a well-funded, high-growth AI business with an established product, paying customers and significant expansion opportunities, but with the freedom to influence how commercial Account Management operates in the US

If you're a commercially driven SaaS Account Manager based in San Francisco and excited by the opportunity to join one of Australia's rapidly scaling AI businesses, we'd love to hear from you.