Tenacious Conversion Engine
AI Sales Automation & Evaluation Engineer
FastAPI sales automation engine for synthetic-prospect outreach, combining inbound email/SMS webhooks, HubSpot write-back, Cal.com booking, enrichment signals, Langfuse traces, and tau2-bench evaluation.
"Built the sales agent with sink-routed outbound safety and sealed-eval guardrails before any live-channel workflow."
Problem
Sales automation agents can easily over-message, route real outbound traffic accidentally, overclaim prospect signals, or optimize against generic benchmarks that miss Tenacious-specific failure modes.
Solution
Implemented a safety-first conversion workflow with synthetic-prospect assumptions, sink-mode defaults, CRM and booking integrations, hiring-signal enrichment, adversarial probes, and sealed tau2-bench coordination experiments.
Deep Dive
What It Does
Tenacious Conversion Engine is a FastAPI backend for email-first and warm-SMS sales automation. It handles Resend and Africa's Talking webhooks, writes prospect state to HubSpot, schedules through Cal.com, enriches accounts with public hiring and firmographic signals, and traces runs through Langfuse.
Engineering Highlights
- •Safety by default: outbound email and SMS are routed to staff sink destinations until live delivery is explicitly enabled.
- •Evaluation harness: tau2-bench wrapper scripts, sealed held-out protections, score logs, and trace exports make coordination prompt changes measurable.
- •Failure research: adversarial probes and failure taxonomies turn business-risk categories into concrete regression targets.
Tech Stack
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