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fonio

Forward Deployed Engineer - Spanish

European Union
Salary
€65K - €95K
Level
Mid
Work type
Remote · Europe

Not stated in the posting: visa.

Open. First seen 20 October 2026.

Apply on the company's site →

About the role

About fonio

We grew from $1M to $10M ARR in under 12 months and now serve 10,000+ customers.

fonio's standard text

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.

Your Role

As a Forward Deployed Engineer for our for our Spanish market, 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 the Spanish market.

What you'll do

  • Capture 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

Who we're looking for

  • 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 at native or near-native level + solid English

What we offer

  • Competitive salary: €60,000–€95,000 per year
  • 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

Hiring Process

  • 25 min intro
  • 30 min deep dive with CTO & Co-Founder Matthias
  • 20 min culture fit with one of our founders

What this role asks for

Standard for solutions / sales engineering roles

Python

Common in solutions / sales engineering postings at any company.

89% of this description is written for the role. The rest is fonio's standard text, folded away below.

Compared with fonio's other open jobs.

The team: Forward Deployment

This role is one of 5 open in Forward Deployment. 4 were posted in the last 30 days.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (5 of 5), Python (5 of 5), RAG (5 of 5), SQL (5 of 5), TypeScript (5 of 5)

OTHER ROLES ON THIS TEAM

From the team and dates on fonio's own job board.

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