We build AI phone assistants for small and medium-sized businesses – so they never miss a call again and can focus on what matters most.
Our AI answers every call automatically. But voice is just the beginning. Our vision is to build the first fully automated CRM system in the world.
8,000+ customers. >€5M ARR. ~30% monthly growth. Target by EOY: €30M.
We live ownership. You own your projects and tasks end-to-end. No politics, few meetings, direct feedback. At fonio, you'll build alongside the smartest and most ambitious people around.
Apply now and become part of one of Europe's most insane growth stories!
Your RoleAs a Forward Deployment Engineer for our Spanish and Italian markets, you work directly at the intersection of product and customer setups. You capture requirements, translate them into robust implementations, and take fonio live at customers – including integrations, automations, and ongoing optimization.
You work closely with Product/Engineering and Go-to-Market, making sure deployments are fast, stable, and repeatable across both the Spanish and Italian markets. This is a Barcelona-based role, ideally suited to someone who can operate natively in both Spanish and Italian.
What you'll doCapture customer requirements and translate them into concrete implementation plans
Build and roll out fonio setups in production: workflows, logic, prompts, guardrails
Implement integrations with third-party systems (APIs, webhooks, CRM, calendar, ticketing, etc.)
Develop smaller features and glue code to cleanly map customer cases
Debug under production conditions: calls, flows, edge cases, fast fixes
Build reusable templates and deployment playbooks to make setups scalable
Deliver product feedback: bring pain points and feature gaps to the team, prioritized and concrete
Solid coding skills: you can implement independently, not just configure
Strong understanding of AI systems and LLMs (prompting, tool-use, RAG, failure modes)
Workflow thinking: translate complex processes into robust, testable flows
Experience with APIs, webhooks, auth, and common integration patterns
Cloud fundamentals: deployments, observability, debugging in production
Highly pragmatic working style: ship fast, make it stable, iterate
Bonus: Voice/Telephony, n8n, TypeScript/Python, SQL, monitoring/tracing, GDPR
Spanish and Italian at native or near-native level & English fluent
Competitive salary: €65,000–€95,000 per year
Barcelona-based role, with relocation to Vienna for onboarding; we also have one of the coolest offices in Vienna's 7th district (lunch & dinner included)
100% Focus Time (no regular meetings)
Unlimited budget when the ROI is right
Extreme speed (we ship almost daily)
Thousands of enthusiastic customers building the product together with us
15 min intro
30 min deep dive with CTO & Co-Founder Matthias
90 min technical interview with case study / live coding
20 min culture fit with both founders
Skills Required
- Solid coding skills; able to implement independently (not just configure)
- Strong understanding of AI systems and LLMs (prompting, tool-use, RAG, failure modes)
- Ability to translate complex workflows into robust, testable flows
- Experience with APIs, webhooks, authentication patterns and third-party integrations
- Cloud fundamentals: deployments, observability, and production debugging
- Experience building and rolling out production setups, automations, and deployment playbooks
- Native or near-native Spanish and Italian; fluent English
- Based in Barcelona or willing to work in Barcelona (relocation/onboarding in Vienna)
- Voice/Telephony experience
- Experience with n8n
- TypeScript and/or Python
- SQL
- Monitoring and tracing tools/experience
- GDPR knowledge
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.
