DAVID ARONSENIOR SOFTWARE ENGINEER

I dream in systems. I paint in interfaces.

I build production AI systems and the interfaces around them — from LLM integration at scale to the products people actually touch.

View selected work About me

Drag the sky to stir it. Tap a star, or steal one — it springs back.

OBS · Overview

Full-stack engineer, focused on AI.

I design and build web and mobile products end to end — from backend systems and data pipelines to the interfaces people use every day. Most recently, that has meant shipping LLM-powered features in production for healthcare and customer service.

Senior engineering
10 years
Brands shipped for
8
Technologies in production
20+
  • AI/LLMs
  • React
  • TypeScript
  • Next.js
  • AWS
  • Python
  • Node.js
  • Docker

WRK · Production record

Career.

  1. Vali Health

    Vali Pulse launch

    Led the company's first customer-facing web app from architecture to launch, then built the Gemini-powered sentiment layer beneath it — reading caregiver messages in real time so support issues surface before they escalate.

    • AI/LLMs

  2. Scale AI

    Gemini pre-release work

    Red-teamed generative models for vulnerabilities — including training and evaluation work on Gemini ahead of its public search release — alongside large-scale BigQuery data work and sharpening co-pilot code generation across languages.

    • AI/LLMs
    • Python

  3. Kenect

    Ford account

    Led front-end epics across a dealership platform — reputation management, texting, and a dedicated Ford account — while integrating and fine-tuning the LLM automations behind its customer-facing AI.

    • AI/LLMs
    • React
    • TypeScript
    • Node.js

  4. Redbridge

    Amazon report lead

    Built the treasury and billing core of a Debt & Treasury ERP used by clients like Uber — automated readers for multiple banks' statements included — and led a reporting project delivered end-to-end for Amazon.

    • AWS
    • Node.js
    • Docker

  5. Dentsu

    Heineken launch

    Lead engineer on Heineken's promotional launch and a Pampers project — plus VR games for Oculus Quest, WebAR through 8th Wall, and kiosk interfaces, all on serverless AWS Lambda backends.

    • React
    • TypeScript
    • Next.js
    • AWS
    • Node.js

  6. TMW Telecom

    Warner Bros. day-one

    Led the team behind an IPTV platform's day-one studio launches — Warner Bros. and Sony Pictures, Venom and Justice League among them — plus the ERP, native apps, VoIP integrations, and Brazilian NFe invoicing around it.

    • React
    • TypeScript
    • Node.js

LOG · Personal

David Aron

Software engineer for web and mobile. The aim is always the same: put what I know to its best use — efficiently, and with some creativity.

What I value most: adaptability, hard work, and clear communication.

MSG · Say hello

Let's build something.

Got something that needs shipping? Email is fastest.

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David Aron Pires Fagundes — Senior Software Engineer