Output 001 / seed 20260424

Jeff Hajewski

I work on AI infrastructure and systems software. Currently at SAP; previously Noom and Salesforce.

Language systems

I work where infrastructure, retrieval, and developer ergonomics meet.

This site is a field index for projects and essays: databases, RPC, distributed systems, and the practical machinery around AI products.

Focus: AI infrastructure

Materials: Zig / Rust / retrieval

Mode: build, test, publish

Node: workbench

Applied systems work

Output 128

Seed: 14371

A single-file database that combines graph traversal, vector search, and full-text retrieval for AI systems.

zigdatabaseretrievalai

Creator / Active

Output 129

Seed: 24371

A distributed key-value store built to explore the mechanics of consistency, replication, and operability.

rustdistributed-systemsraftstorage

Creator / Research project

Output 130

Seed: 34371

A protobuf-first RPC framework focused on transport pragmatism, developer ergonomics, and real failure semantics.

rustrpcnetworkingprotobuf

Creator / Research project

Notes and essays

Drafts are still local. Published writing will appear here once the notes are worth making public.