We grew from $1M to $10M ARR in under 12 months and now serve 10,000+ customers.
Fonio is Europe’s market leader for AI phone agents for SMBs. Now we’re expanding globally and into new products.
We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings.
Join one of Europe’s fastest-growing companies
You actively manage our existing customer accounts and act as their primary point of contact across the entire customer lifecycle. Your focus is on continuously increasing the value our AI phone assistant delivers, expanding use cases, and identifying additional potential.
You regularly run review, discovery, and upsell conversations with existing customers, analyze their usage, and demonstrate how our AI can automate further processes and deliver measurable impact.
You own expansion revenue within your customer portfolio — from upgrades and add-ons to renewals — working toward clear monthly and quarterly quotas.
Alongside the commercial side, you carry a strong customer success component: you ensure customers are successfully onboarded, use the product optimally, and stay satisfied long-term. You bring market feedback back into the team in a structured way.
You work closely with Customer Success, Product, and Marketing, ensuring clean handovers, reliable forecasts, and a well-maintained pipeline in the CRM.
What to Expect
Account Ownership: Responsibility for your own existing-customer portfolio with a clear focus on upsell & retention.
Expansion Sales: Identifying and realizing growth potential within existing accounts.
Customer Success Focus: Regular touchpoints, QBRs, and proactive support to maximize customer success.
Pipeline & Forecast: Structured account planning, clean CRM maintenance, and reliable revenue forecasting.
Teamwork: Close collaboration with Customer Success, Product, and Marketing.
Impact: Actively shaping our account & expansion motion in a fast-scaling AI startup.
What We Offer
€65,000 – €90,000 OTE (base + uncapped commission, depending on experience)
On-site in Barcelona or Vienna
Top equipment of your choice & extremely short decision-making paths
Close collaboration with Product, Marketing & Customer Success
A strong, scaling AI product with real customer value
What You Bring
At least 1 year of experience in B2B SaaS sales, account management, or customer success (startup/scale-up a plus)
Experience in upselling, renewals, or expansion revenue across existing customers
Strong product and technology understanding; you're highly AI-savvy
Structured working style, ownership mindset, and customer focus
Native-level Spanish, confident in calls, reviews & demos
Application Process
15 min recruiter intro call
45 min content interview incl. a short case study
20 min conversation on culture, expectations & details
fonio is building the AI communication suite for small and medium businesses; so no call goes unanswered, no lead gets lost, and no customer is left waiting.
What we do
SMBs lose business every day to missed calls and slow responses. fonio puts AI on the front line of customer communication — handling calls and messages automatically, 24/7, without adding headcount.
Our products
→ AI Phone Agent — answers, qualifies, and routes calls around the clock
→ AI WhatsApp Agent — keeps conversations moving on the channel your customers already use
9,000+ businesses across Europe run on fonio.
Why join us
We're a small team shipping fast from Vienna — building software that thousands of real businesses rely on every day. If you want your work to matter from day one and help define how AI changes SMB operations, fonio is the place.
We're seed-funded, scaling fast across Europe, and hiring across 35+ open roles: from engineering and product to sales and marketing. Come build with us.
