Arthi Arumugam·AI Engineer
Available now
A 01 / AI Engineer

Email me · arthi1805@gmail.com
Available Fractional · 15–35 hrs/wkRate $60–85 / hr USDBased Salem, India · RemoteStack GCP · TS · Python · SQL
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Three engagements,
three sets of receipts.

Production AI inside enterprise environments — not demos. Same model every time: embed with the team, understand the actual problem, build the system, stay until it works without me.

$5M
Revenue protected end-to-end across 200+ Walgreens stores. SAP + Oracle + IoT into Microsoft Fabric, Scikit-learn anomaly detection, full handoff to the customer team.
Walgreens · 2024–25
94%
Reduction in BigQuery bytes scanned per query, driven by a Vertex AI cost-intelligence agent. Tool loop, structured outputs validated before any DDL changes hit production.
Lumen Technologies · 2025–
8.
US states with monthly PUC filings now governed by RADAR — a six-tier regulatory operations platform that encodes institutional knowledge so a single departure can't erase it.
RADAR · OneTrust 565 · approved
A 02 / Selected work

Three engagements,
three sets of receipts.

Each one is the same model: embed with the team, understand the actual problem, build the system, stay until it works without me.

A 03 / Open source & products

Things I've shipped
on my own time.

Open-source tools other engineers run in production, and a couple of products with real paying users.

Hourzero
Voice AI intake · live with paying customers
01

Real-time voice intake for US personal-injury law firms. Sub-800ms turn latency, deterministic eligibility checks, structured outputs straight into the firm's CMS. Replaces an entire night-shift triage seat without losing the human read.

<800ms
turn latency
Live
production
PI law
vertical
Voice pipeline · LLM · structured outputhourzero.live ↗
Gnani
Agentic spreadsheet · Apache 2.0
02

=AGENT('prompt') triggers an LLM-powered agent that autonomously calls APIs, scrapes, writes cells, formats, renders charts — full tool loop, structured-output validation, graceful failure handling.

8
dashboard templates
Docker
self-hosted
MCP
compatible
LLM APIs · TypeScriptgithub ↗
Costctl
Database cost CLI · 6 platforms
03

Python CLI that scans BigQuery, Snowflake, Databricks, Postgres, Redshift, MySQL for cost waste. Each finding ships with monthly $-savings and a ready-to-run DDL fix. Runs in CI as a GitHub Action.

301
tests
6
platforms
CI
GitHub Action
Python · Flask dashboardgithub ↗
TaskMelt
Voice-to-task iOS app · App Store
04

Solo from zero to App Store. Real-time audio pipeline: microphone → Deepgram WebSocket STT → LLM task extraction → structured output. RevenueCat billing. Real paying users.

iOS
App Store
RT-STT
Deepgram
$
subscriptions
Swift · Deepgram · RevenueCattaskmelt.app ↗
A 04 / About

Plain English,
real systems.

I build AI systems that work the day after the demo. Most of the work is unglamorous — reading 18 months of historical filings, sitting in discovery workshops with a customer's ops lead, validating model output against ground truth before anyone sees it.

I joined Lumen mid-transition with no documentation and active regulatory deadlines across eight states. I rebuilt the process, filed on time, and then designed RADAR — a six-tier platform on GCP that encodes regulatory knowledge so a single departure can never erase it again. That's the kind of work I want to keep doing.

Outside of client work I ship open-source tooling — Gnani, an agentic spreadsheet with a full autonomous tool loop, and Costctl, a Python CLI that scans six database platforms for cost waste and ships fixes as ready-to-run DDL. I also shipped TaskMelt to the iOS App Store on my own.

I care about AI being safe and beneficial — not as a talking point, but because I deploy systems real people depend on.

A 04.1 / Currently
  • WorkingRADAR — designing the next two analytical methods
  • BuildingAn agent-skill marketplace prototype, after hours
  • ReadingNotes on building forward-deployed engineering practices
  • ListeningLex Fridman × Dario Amodei
  • LearningBigQuery ML ARIMA_PLUS internals
  • Open toFDE / applied AI / solutions engineer roles
  • CoffeeSouth-Indian filter, two pours
A 05 / Stack

What I reach
for first.

Boring choices, well-applied. The interesting part is what they're being used for.

LLMs & agents

  • LLM APIs · multi-provider
  • Vertex AI (Gemini)
  • Tool-use · MCP
  • Multi-agent loops
  • Structured output
  • Eval frameworks

Engineering

  • Python · TypeScript
  • Node.js · Next.js
  • Docker · GitHub Actions
  • n8n · Inngest
  • Supabase · SSE
  • WebSocket streaming

Cloud & data

  • GCP — BigQuery · Vertex
  • Azure — Synapse · Fabric
  • Snowflake · Databricks
  • Oracle PL/SQL · Postgres
  • BigQuery ML · ARIMA_PLUS
  • SAP · Oracle ERP · IoT

The job

  • Customer discovery
  • Solution scoping
  • Production deployment
  • Eval & iteration
  • SOPs & playbooks
  • Customer enablement

Certs · GCP Professional Data Engineer · Azure Data Engineer Associate · MS Fabric DE Associate · Power BI DA Associate

A 06 / Contact

Let's build something that actually ships.

Emailarthi1805@gmail.comGitHubarthi-arumugam-gitLinkedInarthiarumugam99Phone+91 96776 67794ResumeDownload PDF