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Liam Ellis

Liam Ellis

Senior AI Platform Engineer · Multi-Agent Systems · Retrieval & Context Engineering · Production LLM Platforms | Python · TypeScript · Next.js

Minneapolis, Minnesota, US
929-438-9388

Background


About

About

Senior AI platform engineer who ships production agentic systems end-to-end — a six-agent autonomous operations platform grounded in a 200+ file context-engineered corpus, LLM enrichment pipelines that cut campaign setup from 3 days to 15 minutes, and a solo-built civic digital passport platform serving 6,066 visitors (+445% above projections), 1,055 verified sign-ups week one. 8+ years across the full stack, including four at Freeman leading teams of 3–6 across the stack, owning database design, GraphQL/REST architecture, and enterprise authentication on AWS. Since 2023, Ive been on a deliberate run of independent contract work compounding toward one specialization: multi-agent orchestration, hybrid retrieval and context engineering, and agent systems built for production — delivering measurable operational ROI, with every AI output reviewed, tested, and hardened before it ships.

Work Experience

Work Experience

  • AI Systems Consultant, Lundstrum Performing Arts

    Jan, 2026 - May, 20264 months

    501(c)(3) nonprofit arts organization, North Minneapolis — production multi-agent operations platform

    • Architected a six-agent operations system — specialized agents for marketing, grant writing, donor comms, events, analytics, and content — coordinated through shared tools, Claude Code custom skills, and a context-engineered corpus.

    • Ingested 200+ organizational files (site pages, blog, annual report, rehearsal transcripts) into a queryable grounding store for retrieval-backed grant writing and content.

    • Built agentic workflows and custom skills generating on-brand UIs and web apps, gated by human review before publish.

    • Shipped a Remotion programmatic video pipeline wired to Higgsfield AI and Luma Labs generative APIs for a live donor fundraising campaign.

  • Senior Software Engineer, Experience Maple Grove

    Jun, 2025 - Aug, 20252 months

    • Sole engineer on a city-backed Restaurant Week platform — shipped a production PWA in 8 weeks: QR check-ins (24h token expiry), geofencing, real-time leaderboards, raffle mechanics, RBAC, and restaurant admin dashboards.

    • Hit 3,557 visitors and 399 completed punch cards in week one; grew to 6,066 visitors (+445% above projections), 1,055 verified sign-ups, and 1.2M requests — 99.99% uptime, zero security incidents.

    • Held sub-200ms QR validation under 100+ concurrent users via PostgreSQL materialized views, Redis caching, and Supabase real-time; adopted as reusable City of Maple Grove civic infrastructure.

  • Senior Software / AI Engineer, FLS USA

    May, 2025 - Jun, 20251 month

    • Engineered Python/OpenAI enrichment pipelines over 6,000+ B2B records — structured extraction and intent scoring for lead validation and qualification.

    • Gated all agent output behind deterministic checks before human review — schema validation, extraction-quality evals, CI gates — catching malformed records before any customer-facing send.

    • Built brand-extraction and campaign-generation workflows on Firecrawl, Exa, OpenAI, and the Vercel AI SDK.

    • Cut campaign setup from 3 days to 15 minutes, letting non-technical operators launch safely without manual research overhead.

  • Senior Software / AI Engineer, WinWinX + Agency Underground

    Mar, 2025 - May, 20252 months

    • Built AI brand-extraction and context-to-content workflows turning raw inputs into campaign-ready assets in under 15 minutes.

    • Lifted lead quality and targeting accuracy ~20% through data cleanup, enrichment, and automation.

    • Productized AI workflows translating unstructured business context into repeatable outbound and marketplace ops.

  • Senior Software Engineer, FLYPILOT

    Nov, 2023 - Oct, 202411 months

    • Delivered full-stack work for enterprise and premium retail clients — AgileOne, Brookfield Properties, Matsuda Eyewear, Gentle Monster.

    • Led 4–10 remote engineers across roadmap, architecture, code quality, and client delivery.

    • Consolidated 11 production sites into one Next.js monorepo — 50% faster delivery, 75% lower cost; lifted Matsuda Eyewear page performance 60%.

  • Senior Software Engineer, Knock Inc

    Aug, 2023 - Nov, 20233 months

    • Sole engineer on a headless CMS and showcase platform under a short timeline — owned build and deploy end-to-end, decoupling content from frontend for editorial flexibility and maintainability.

  • Senior Full-Stack Engineer / Platform Lead, Freeman

    Jan, 2019 - Dec, 20234 years 11 months

    • Joined building a GraphQL API for Amazon Alexa chatbot experiences, setting schema and data-access patterns for conversational workloads.

    • Promoted to lead the frontend team on the company's mission-critical internal platform.

    • Scaffolded the platform's initial core database models — the data foundation it was built on.

    • Single-handedly designed and built the full authentication and authorization layer governing internal and external API access.

    • Consulted as SME on multiple design-automation proofs-of-concept, advising on approach and feasibility.

Skills

Skills

  • Agentic systems

    multi-agent orchestration

    context engineering

    Claude Code

    custom MCP servers & tools

    LangGraph

    LangChain

    durable execution

    human-in-the-loop

    agent memory & context management

    RAG/GraphRAG

    hybrid retrieval

    structured outputs

    function/tool calling

    evals

    guardrails

    latency & token-cost optimization

    Anthropic & OpenAI APIs

    Vercel AI SDK

    pgvector

    working knowledge of Google ADK, Vertex AI/Gemini, AWS Bedrock

  • Languages/frameworks

    Python

    TypeScript

    JavaScript

    React

    Next.js

    Node.js

    FastAPI

    Flask

    GraphQL

    REST

  • Data/infrastructure

    PostgreSQL

    Supabase

    Redis

    Neo4j

    KùzuDB

    AWS Lambda

    Amazon CDK

    CloudWatch

    Vercel

    Modal

    RunPod

    serverless & event-driven architectures

    CI/CD

    IaC

  • Observability/tooling

    OpenTelemetry

    Sentry

    PostHog

    Storybook

    Turborepo

    WCAG 2.2

    Core Web Vitals

  • Security/auth

    Clerk

    Okta SSO

    OAuth/OIDC

    RBAC

  • AI-assisted development

    Claude Code

    Cursor

    Codex

    GitHub Copilot

    v0.dev

    spec → agent → deterministic checks + evals → human review

    spec-driven development with security & correctness review before shipping

Education

Education

  • Anthropology, Bachelor of Arts, University of Minnesota

    - Present

Certificates

Certificates

  • Full-Stack Development, Epicodus

    Issued on:

  • Ruby on Rails Certification, StartUp Institute

    Issued on:

  • Frontend Development, General Assembly

    Issued on:

Interests

Interests

  • Professional songwriting

    30+ MTV and VH1 placementstranslating ambiguous creative direction into shipped, audience-facing work