AI systems architectSince 2021
Julian Block headshot

Julian Block

Director of AI Engineering · Ayzenberg

Building AI systems that are deliberate, cinematic, and production-ready.

I design and ship end-to-end AI products: retrieval pipelines, orchestration layers, and polished frontends that make hard technical systems feel calm, premium, and trustworthy.

12+
complex systems shipped
Full
stack ownership
<1s
retrieval mindset
pipeline.trace
live
01IngestVector chunk · 128-dim
02Retrievepgvector cosine · k=8
03RerankCross-encoder · MRR .91
04GenerateStruct output · 380ms P95
<380ms
P95 latency
10M+
embeddings
.91
MRR

Philosophy

Production AI is a systems problem before it is a model problem.

Strong AI products come from owning the entire path: ingestion, embeddings, retrieval quality, orchestration, interface pacing, and failure handling. When those layers are designed together, the experience feels obvious.

The weak versions fail in predictable ways: drift, latency spikes, brittle prompts, or interfaces that expose uncertainty at the wrong moment. The durable versions feel composed because the architecture behind them is composed.

Contact

Let's stay in touch.

I'm not exploring freelance work right now—I'm busy building for Ayzenberg, where I direct initiatives across their product and AI stack. I do not have time for side work. You can still use the email below if there's something specific you need to contact me about.

© 2026 Julian Block