forward deployed engineer

1 week ago


Remote, United Kingdom Crewscale Full time £150,000 - £250,000 per year

You'll build the intelligent agent layer that powers our AI nurses. Responsibilities

● Build voice-first clinical AI agents with safety guardrails

● Implement protocol execution logic + function calling + memory ● Build eval & red-teaming framework for hallucination prevention ● Convert call recordings into structured protocols

● Optimize latency, turn-taking, barge-in, and natural call experience ● Combine LLMs + deterministic logic to prevent unsafe behavior

Ideal Experience

● 3–7+ years in AI / ML / applied NLP

● LLM tool experience (OpenAI function calling, Anthropic tools, LangChain) ● Built real AI agents or production RAG pipelines

● Voice agent stack: Vapi, Retell, Twilio Voice, AssemblyAI (nice to have) ● Obsessed with safety, latency, determinism, and eval discipline ● Bonus: building eval frameworks or structured prompting systems

Shared Traits We Look For

● Builder energy: prototype fast, ship weekly, improve continuously ● High accountability + product ownership mindset

● Strong system thinking — you care about edge cases

● Obsessed with quality and reliability in healthcare

● Comfortable working directly with clinicians and users

● Bias toward clarity, documentation, and explainable systems

Our Tech Stack

Area Tools

Language Python + FastAPI OR TypeScript + Node Voice Agents Vapi, Twilio, Deepgram, AssemblyAI LLM Stack OpenAI, Anthropic, function calling, guardrails Infra AWS (ECS/Lambda), Docker, Terraform DB Postgres + Redis

Frontend (nice to have)

React +

Security PHI encryption, KMS, IAM

Job Types: Full-time, Part-time, Fixed term contract, Freelance

Contract length: 12 months

Pay: £150,000.00-£250,000.00 per year

Expected hours: 20 – 40 per week

Work Location: Remote

Reference ID: AI Agent Engineer


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