☎️ 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! 🚀
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.
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
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
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
$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
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 🚀
Skills Required
- 2-5 years of experience in Customer Success, Account Management, Forward Deployment Engineering, or a technical client-facing SaaS/B2B role
- Strong technical understanding, including the ability to understand API documentation and error logs and troubleshoot customer setup issues independently
- Experience with tools such as n8n, Make.com, Codex, or similar
- Native or C2 English proficiency
- Comfort with CRM systems, ideally HubSpot, and data-driven workflows
- Willingness to relocate to Vienna for 1-2 months initially
- Affinity for technology and AI products
- Structured, autonomous, results-driven working style
- Ability to build trust with customers by phone or video
- Initiative to test, iterate, and work independently
What We Do
fonio’s AI phone assistant answers calls, takes the load off your team, and ensures you’re reachable 24/7, so no lead, customer, or opportunity is missed, for businesses of any size.
