Forward Deployed Engineer - Spanish

fonio.ai; Spain; On-site; EUR 60,000 - 95,000; Full time

Job summary

Fonio is seeking a Forward Deployed Engineer for the Spanish market. You will capture customer requirements, translate them into concrete implementations, and deploy fonio live at customer sites, including integrations, automations, and ongoing optimization.

Partner with Product, Engineering and Go-to-Market to keep deployments fast, stable and repeatable, ensuring scalable setups for the Spanish market and delivering reliable AI-powered experiences.

Qualifications

• Strong coding ability to implement end-to-end solutions.
• Solid understanding of AI systems and LLMs, including prompting and tool-use.
• Ability to translate complex processes into robust, testable flows.
• Experience with APIs, webhooks and common integration patterns.

Responsibilities

• 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).
• Develop smaller features and glue code to map customer cases.
• Debug under production conditions: calls, flows, edge cases, fast fixes.
• Build reusable templates and deployment playbooks to scale setups.
• Deliver product feedback: report pain points and feature gaps with prioritization.

Skills

Coding skills

AI systems & LLMs

Workflow design

APIs & webhooks

Cloud fundamentals

TypeScript

Python

Spanish language

Tools

TypeScript

Python

Job description

About Fonio

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.

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