A Role landing · AI Engineer

Welcome, AI Engineer.

Senior AI Engineer, MemberIntel — hire pending (target close mid-June 2026). Owns the AI substrate end-to-end: inference pipeline, retrieval, prompt versioning, eval suite, cost discipline, and the model-improvement feedback loop. Reports to Seth Shoultes (Lead Architect).

This is a shipping role, not a research role. Comfortable in Python or TypeScript, comfortable owning integrations end-to-end, has personally shipped at least one production LLM-powered system. Read the public job posting for what we’re recruiting against, the internal JD for the full role definition (decision rights, success measures, reporting cadence), and Seth’s Lead Architect JD for the boundaries between the two.

Pages for AI Engineer

All content tagged for this role across the spec.

Senior AI Engineer JD

Senior AI Engineer role definition: owns the AI substrate end-to-end (inference pipeline, retrieval, prompt versioning, eval suite, cost discipline, feedback loop) under Seth's architectural direction. Reports to Seth Shoultes. Hire pending — target close mid-June 2026.
AI Engineer — Public Job Posting

External recruiting copy for the Senior AI Engineer hire — production LLM systems experience required, cost-discipline-as-engineering-surface posture, no LangChain. 30-min CEO screen → 60-90 min technical with Seth → paid week-long trial → offer in ~2-3 weeks.
Cross-Pollination & Brain Isolation

Details the three failure modes of the cross-pollination pipeline — re-identification, tenant leakage, and opt-out bypass — and the architectural mitigations for each, including k-anonymity floors, three-role isolation, and GCP project structure.
AI Eval Suite as Architecture

Treats the eval suite as versioned release-gate infrastructure rather than ad-hoc tests, with 150 structured scenarios across seven categories, a judge-model scoring layer, CI integration, a differentiation subset that proves advantage over baseline LLMs, and a production thumbs-down feedback loop.
LLM Cost-Control Architecture

Defines the four-layer cost-control stack — rate limiting, entitlement service, per-call token budgets, and continuous spend monitoring — with Redis-backed quota counters, server-side model routing enforcement, and a global daily circuit breaker.
Observability & Incident Response

Describes the three-destination telemetry model — Cloud Logging for debugging, BigQuery for business analytics, locked-down BigQuery for audit — plus domain-specific metrics, on-call structure, and pre-written runbooks for the five highest-stakes failure modes.
Architecture Overview & Tech Choices

Covers GCP vs Heroku vs DigitalOcean for hosting, then deep-dives per-tenant isolation strategy using shared-schema RLS as the V1 foundation.
Decisions Due — Monday 2026-05-11 (prep doc — historical)

PREP doc for the 2026-05-11 meeting. The actual outcomes are at /meeting-2026-05-11-blair. References to 'Product Lead' below are historical — the role was retired in this session; Santiago absorbed the duties.
Blair — CEO JD

Blair Williams's CEO role definition for MemberIntel: product owner, final decision-maker on strategy, pricing, and architecture material choices, executive sponsor across the company.
Decision Rights Matrix

A binding contract defining who owns which decisions across engineering, product, compliance, and GTM — keeping Seth and Santiago unblocked as peers without escalating every disagreement to Blair. Updated 2026-05-11 to retire the dedicated Product Lead role (Santiago absorbed the duties) and add Russ as Lead Designer.
Elevator Pitch — What MemberIntel Is

Plain-language descriptions of MemberIntel for different audiences — a one-liner, an elevator paragraph, and riffs tuned to designers, engineers, friendly outsiders, and curious customers. Use when explaining the project to someone new in under a minute.
Cover Letter to Allen — Privacy Architecture Review

Cover letter from Seth and Santiago to Allen, MemberIntel's privacy counsel, introducing the privacy strategy memo and the late-May architecture review agenda. Sent ~5 business days before the session to give Allen context for the pre-read package.
Meeting Log — Blair × Seth, 2026-05-11

Full decision log from the Blair × Seth working session on 2026-05-11: friction-points resolutions, team structure changes (Product Lead retired → Santiago expanded; Russ added as Lead Designer), free-tier LLM strategy (local Ollama-class), GCP hosting confirmed, 14-day Pro trial for existing MP members, domain registrations, action items.
Privacy Strategy for Counsel — Memo to Allen

Privacy strategy memo for Allen (Blair's privacy counsel) ahead of the late-May architecture review. Identifies the structural problem (the architecture treats member data as operator data throughout) and proposes seven preconditions before ToS drafting — four code-layer architectural preconditions and three policy items. Drafted 2026-05-12 through a Brandeis-counsel reasoning pass, McPhee-prose rewrite, panel review (Lessig + Sunstein + Rawls), and a Lessig/Rawls debate on permanent exclusion.
Product Lead JD (retired — folded into Santiago 2026-05-11)

RETIRED 2026-05-11. The dedicated Product Lead role was not backfilled after Cindy's departure; responsibilities folded into Santiago's expanded mandate. Retained as a historical reference for the duties Santiago now owns. See /santiago-jd for the current operational definition.
Seth — Lead Architect JD

Seth Shoultes's Lead Architect role definition: end-to-end technical ownership of the brain, data pipeline, AI/ML architecture, engineering team, and vendor decisions for MemberIntel.
V1 Cost Discipline Review

AI Engineer persona's feasibility review of V1 unit economics: architecture as specified can hit $1.07 Free / $10.75 Pro targets if input-token ceilings are pinned, model routing is typed from the entitlement service, retrieval is pre-budgeted, and site analysis stays weekly-cached. The scariest finding is that Free breaks even AT the SPEC's floor conversion target — a Blair conversation about circuit-breaker authority, not an architecture fix.