Customer Success Manager

4Twenty Consulting; San Francisco (CA); Hybrid; USD 90,000 - 140,000; Full time

Benefits offered by this job

Generous PTO

Birthday leave

Paid parental leave

Technology allowance

Job summary

4Twenty Consulting partners with a fast-growing Australian AI technology scale-up to build its US customer success team in San Francisco. The role focuses on driving retention, renewals, upsell and expansion revenue, owning commercial outcomes and shaping the US CSM function.

You’ll own relationships with ecommerce, marketing and growth leaders, manage renewals, demonstrate ROI, and help establish a scalable playbook across the US.

Qualifications

• Proven experience in B2B SaaS Customer Success or Account Management.
• Strong track record of renewals, upselling and growing existing accounts.
• Experience owning commercial targets, account portfolios or expansion revenue.

Responsibilities

• Revenue growth: Identify and close upsell and expansion opportunities across existing customers.
• Customer retention: Own renewals, protect recurring revenue and proactively reduce churn.
• Account strategy: Build strong relationships with ecommerce, marketing and growth leaders.
• Commercial outcomes: Demonstrate ROI, lead strategic account reviews and maximise CLV.
• Build and scale: Help establish the US customer success playbook, processes and expansion strategies.
• Cross-functional impact: Partner with Sales, Product and Implementation teams across the US and APAC.

Job description

We're exclusively partnering with one of Australia's fastest-growing AI technology companies as they scale their US operations from San Francisco.

Their AI-powered creative production platform enables ecommerce and marketing teams to generate, test and launch high-performing advertisements across Meta, TikTok and Google, dramatically reducing the time and cost of traditional creative production.

Fresh off a $20M Series A, backed by leading investors including Square Peg, Rampersand and AirTree, the business is already trusted by 500+ brands globally, with ambitious plans to 10x revenue.

They're now building out their US team and looking for a commercially sharp Customer Success Manager to drive the next phase of growth.

This isn't a traditional CSM role focused purely on adoption.

You’ll own customer relationships and commercial outcomes, driving retention, renewals, upsell and expansion revenue, while helping shape the US customer success function.

What You’ll Own

• Revenue growth: Identify and close upsell and expansion opportunities across existing customers.
• Customer retention: Own renewals, protect recurring revenue and proactively reduce churn.
• Account strategy: Build strong relationships with ecommerce, marketing and growth leaders.
• Commercial outcomes: Demonstrate ROI, lead strategic account reviews and maximise customer lifetime value.
• Build and scale: Help establish the US customer success playbook, processes and expansion strategies.
• Cross-functional impact: Partner with Sales, Product and Implementation teams across the US and APAC.

What We’re Looking For

• Proven experience in B2B SaaS Customer Success or Account Management.
• A strong track record of renewals, upselling and growing existing accounts.
• Experience owning commercial targets, account portfolios or expansion revenue.
• Confident managing high-volume SMB or mid-market customer relationships.
• Commercially savvy, proactive and comfortable negotiating with decision-makers.
• Experience in a high-growth startup or scale-up environment.
• An interest in AI, AdTech, MarTech or ecommerce.

We’re looking for a commercially minded operator who can build relationships, own a revenue number and help create the playbook, not just follow one.

Why Join?

$20M Series A – Well-funded AI scale-up targeting 10x growth.

US expansion – Help scale a global AI business across North America.

Commercial ownership – Direct impact on retention, renewals and revenue.

Career growth – Help build the US customer success function from an early stage.

San Francisco (Hybrid) – Join a growing local team with global reach.

Great benefits – Generous PTO, birthday leave, paid parental leave and technology allowance.

Interested?

If you’re a San Francisco-based CSM who loves growing accounts, owning revenue and building something from the ground up, we’d love to hear from you.