Seamless escalation to human when required
User profiles + preference memory
Provider availability + scheduling logic
Workflow orchestration (requests bookings confirmations)
CRM integration
Design and build the end-to-end AI concierge system
Select and integrate LLMs, voice models, and orchestration frameworks
Build WhatsApp automation (e.g. via Twilio, Meta APIs, or equivalent)
Implement real-time voice pipeline (speech-to-text reasoning text-to-speech)
Ensure low latency and high reliability
Maintain strict data privacy and security standards

You should have strong hands-on experience in:
Prompt engineering + agent design
Tool use / function calling
Memory systems (vector DBs, session memory)
Multi-step workflow orchestration
Real-time speech pipelines (STT / TTS)
Latency optimisation for conversational flow
Experience with providers like ElevenLabs or similar
WhatsApp API integrations
Event-driven systems
Webhooks and async processing
Node.js / Python (preferred)
API design
Database design (relational + vector)
Cloud infrastructure (AWS / GCP), You understand user experience in conversation, not just code
You can balance automation vs human touch
You care about detail, tone, and discretion, Experience building AI agents in production
Experience with booking / scheduling systems
Familiarity with CRM tools (HubSpot, custom pipelines)
Background in high-end consumer or service experiences, Early-stage / pre-scale
Building MVP live concierge refined system
Equity-based co-founder role

BLACKLINE is an exclusive private membership platform designed to provide an exceptional experience in aesthetics, wellness, fitness, and personal care across London. We pride ourselves on a meticulously curated network of top-tier operators to meet members' high standards. With a focus on personalized attention, BLACKLINE offers a seamless and bespoke experience. Membership is granted selectively, catering to individuals who value excellence and exclusivity.

1 Blackline, Inc. jobs in England & Wales