Forward Deployed Engineer - UK

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 UK 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 UK 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

English

at native or near-native level

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