☎️ About fonio

fonio.ai is a market leader in AI agents for SMBs. We started with phone agents and now also cover WhatsApp, web chat, email and a full AI phone system. We’re growing fast across Europe, the UK, the US and Brazil.

We grew from $1M to $10M ARR in under 12 months, then went from $10M to $20M in about 8 weeks. Today we serve 10,000+ customers.

We move fast, take ownership, give direct feedback, and avoid politics and unnecessary meetings.

Join one of the fastest-growing companies! 🚀

The Role

As Technical Customer Success Manager for the US market, you are the primary point of contact for your customer cohort (of SMBs) once they've signed. You own their success, satisfaction, and retention end to end.

You actively build relationships, identify value drivers, and ensure every customer gets the most out of fonio. You'll spend most of your time in calls and meetings with customers and implementing or improving their setups.

What to Expect

Own a portfolio of US SMB customers across their full lifecycle

Build relationships, surface value, and find new use cases for AI agents to keep customers engaged

Support customers in setting up their AI assistant; implement workflows for medium complex cases and coordinate with developers for advanced setups

Run check-ins and proactive calls based on usage signals (low engagement, expansion opportunities, setup friction)

Work with a ready-made pipeline and clear playbooks, with room to test your own initiatives

Maximize the value generated from each customer in your portfolio

Spot churn risks early and act on them

Manage your activity autonomously in HubSpot

What You Bring

Must-haves

2–5 years in Customer Success, Account Management, Forward Deployed Engineering, or another technical client-facing role in SaaS/B2B

Strong technical understanding: you’re comfortable reading API documentation and error logs to troubleshoot customer setup issues independently

Native-level or C2 English

You build trust easily with customers, by phone or video

Structured and autonomous: you take initiative, test, iterate, and don’t wait to be told what to do

Based in New York City or willing to relocate there. This is an onsite, office-first role

Willing to spend the first 1–2 months in Vienna for onboarding

Nice-to-haves

Hands-on experience with AI and automation tools such as n8n, Make, Codex, or similar

Experience with a CRM (ideally HubSpot) and data-driven workflows

What We Offer

$70,000–$150,000 (based on experience)

Equity: you help build it, you should own a piece of it

Relocation support

Daily lunch and dinner

Equipment of your choice

Regular team off-sites

On-site in Vienna, working directly with the core-teams

Hiring Process

15 min intro call with Talent Acquisition

30 min skill interview with a Roleplay

20 min Call with our CCO

20 min Cultural Fit

How we hire?

We're AI-native, including in hiring. AI helps us to remain efficient, but people make every decision.

fonio is an equal opportunity employer. We hire for talent and ownership, whatever your background is.

Need an adjustment in the process? Just tell us.

Please send your CV in English. Then knock us off our feet 🚀