AI/ML Engineer & Tech Lead — New York

Hossain
Pazooki

I build agentic AI for regulated domains — healthcare claims, cross-border compliance, financial risk — where a wrong answer has a real cost and "it usually works" isn't good enough.

What the work proves

Correctness you can audit — not confidence you have to trust.

34% fewer
claim denials, after a production failure exposed systematic LLM over-confidence and I rebuilt the decision gate.
trace · orawell · healthcare RCM
5-tier
gate
verification layers (T0 schema → T4 cross-rule) decide what the model is allowed to act on.
trace · atlas · consistency engine
fail-closed
on unevaluable, not just on failure. Absence of valid proof is a denial, never a default-pass.
trace · intent-layer · authorization
458+ tests
strict mypy, CI/CD discipline, content-addressed artifacts. The audit trail is the build.
trace · ci · implemented ≠ asserted
Selected work

A portfolio of one conviction.

Two planes — policy and runtime — and the verification tooling that keeps them honest. AI interprets; deterministic engines execute; every decision leaves a trace.

policy plane
regulatory engine

ATLAS featured

A regulatory rule-execution engine. Compiles regulation into content-addressed, dual-signature-verified artifacts; a Rust kernel executes them deterministically and fails closed on a verification miss.

5-tier consistency engine (T0 schema · T1 lexical · T2 embeddings · T3 NLI · T4 cross-rule) — every tier with a heuristic fallback, every verdict reproducible.
Rustke-runtimePyO3BLAKE3Temporal
runtime plane
compliance navigator

COMPASS

Cross-border digital-asset compliance, evaluated in real time. Resolves jurisdiction conflicts across MiCA, FCA, and the GENIUS Act, and moves a position through explicit verdict states: compliant → conditional → blocked.

The runtime counterpart to ATLAS — same conviction, opposite plane. Policy is authored once; the runtime decides under it, transparently.
FastAPIPydanticAIReactTypeScriptEKS
open source
verification toolkit

rigor github.com/hossainpazooki

A Claude Code plugin that holds agents to their evidence: blocks unverified claims, refuses silent git-history rewrites, and enforces a hard line between what's implemented and what's merely planned.

Built under its own rules — the plugin's construction is gated by the same discipline it ships.
Nodehooksskillsgit-guard
authorization kernel
domain-agnostic

Intent Layer

A fitness-gate: an irreversible action is authorized only by a reproducible, measured demonstration that it meets declared criteria. No valid demonstration means denial — by construction.

Two defining properties: fail-closed on unevaluable, and byte-reproducible provenance of the authorization decision itself.
Rustcontent-addressedprovenance
applied ML
multi-omics QA

CLUE

Upstream label correction for multi-omics cohorts. Detects mislabeled samples through cross-omics concordance scoring, before bad labels poison everything downstream.

Run with a strict line between a verified experiment and a verified result — a self-injected score that's arithmetically real but experimentally self-referential is not a result.
Pythonscikit-learnCPTAC/TCGA
risk ML
lending

CLDD

A lending default-detection system — quantitative risk modeling in the same auditable mold: every score traceable to the inputs and the model version that produced it.

PythonVaR / CVaRstress testing
Technical skills

Across the stack, end to end.

Agentic AI & LLMs

  • Multi-agent orchestration (PydanticAI)
  • Hybrid RAG — BM25 + vector retrieval
  • Evaluation infra: precision / recall / hallucination tracking
  • Confidence calibration & verification gates

Languages

  • Python — FastAPI, async, strict typing
  • Rust — deterministic execution kernels
  • Go — services
  • TypeScript / React — frontends

ML & quantitative

  • Applied ML & model serving / drift monitoring
  • Genomics & multi-omics pipelines
  • Quant risk — VaR / CVaR, stress testing
  • Econometrics & causal inference

Infrastructure

  • Kubernetes / EKS, Terraform IaC
  • Temporal durable workflows
  • PostgreSQL / TimescaleDB
  • CI/CD, content-addressed artifacts, audit pipelines
Career

Where the conviction was earned.

2024 — 2026 · Full-time

AI/ML Tech Lead — Orawell Group

New York, NY · healthcare revenue-cycle management
  • Led a team building agentic compliance pipelines — PydanticAI agents orchestrating claim review, denial prediction, and appeal generation with human-in-the-loop checkpoints.
  • Designed a 5-tier confidence-calibration system after a production failure exposed systematic over-confidence in LLM decisions — reduced claim denial rates by 34%.
  • Built a hybrid retrieval pipeline (BM25 + vector) over regulatory and payer-policy documents, with a structured eval framework tracking precision, recall, and hallucination rate.
  • Owned the infrastructure: FastAPI, PostgreSQL, Kubernetes on EKS, Terraform IaC, CI/CD with strict mypy enforcement and 458+ tests.
2022 — 2024 · Full-time

Co-Founder — Engager Inc.

New York, NY
  • Built the platform from the first commit to production — establishing architecture, CI/CD, and engineering practice.
  • Designed and shipped the core backend and frontend (React, Python).
2020 — 2022 · Full-time

Founding ML Engineer — 3DEO

Los Angeles, CA · metal additive-manufacturing R&D
  • Built the ML platform: a unified data layer linking process parameters, characterization, and production outcomes by part ID across sintering logs, mechanical-test data, and QA.
  • Shipped model-serving hooks that scored new production runs automatically, plus drift monitoring against characterization ground truth.
  • Translated materials-team objectives — yield, faster qualification — into tractable ML KPIs with non-technical domain experts.
2019 — 2020 · Full-time

Data Engineer — Penske Media Corporation

Marketing analytics & revenue
  • Built marketing-analytics models and reporting infrastructure supporting ad sales and audience monetization across PMC's portfolio.
2017 — 2019

Econometrics Research — Institute for New Economic Thinking

Sovereign-wealth-fund investment & capital-allocation models
University of Southern California
B.S. Electrical Engineering · B.A. Economics · 2-yr econometrics research at INET
2013 — 2019