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Glaucco User

@glauccouser

AI Benchmark Engineer at AfterQuery, creating Dockerized coding-agent evaluations and a validation workbench with 179 automated tests.

Brazil

Message

At AfterQuery, I create Go, Python, and C/C++ benchmark tasks for AI coding agents, including bug fixes, memory-safety tasks, and browser-tested web-app repairs. More than 25 tasks have been approved.

I package tasks in reproducible Docker environments with reference solutions and deterministic verifiers. I calibrate difficulty by reviewing model runs and distinguishing task difficulty from environment failures or loose tests.

At AfterQuery, I also built a Node.js and TypeScript validation workbench with 179 automated tests. It runs broken and fixed versions side by side in Docker and cut task pre-validation time from 645 to 349 seconds.

Earlier, I built reusable Next.js, React, and TypeScript components as a Full Stack Development Intern at CI&T, and replaced Mengoni Engenharia & Arquitetura’s manual invoice intake with an AppSheet app and JavaScript automations.

Experience

Work history, roles, and key accomplishments

Current

AI Benchmark Engineer

Current

U.S. AI data company (confidential)

Sep 2026 - Present (1 month)

Create evaluation tasks for AI coding agents in Terminal-Bench/Harbor format, including Docker environments, reference solutions, and isolated verifiers. Design verifiers resistant to gaming and automate pre-validation of packages.

Python BASH Docker Terminal Bench Harbor Verifier Design Static Analysis Automation

Current

AI Benchmark Engineer

Current

AfterQuery

Apr 2026 - Present (6 months)

Build benchmark tasks in Go, Python and C/C++ for AI coding agents, packaging them in Docker with reference solutions and deterministic verifiers. Calibrate task difficulty by analyzing model runs and have over 25 tasks approved.

Go Python C C++Docker SWE Bench Fuzz Testing LibFuzzer Sanitizing Fail To Pass Tests Pass To Pass Tests Deterministic Verifiers Angular Django REST Framework NodeJS TypeScript Testing Automation

Full Stack Development Intern

CI&T

Jan 2025 - Jul 2025 (6 months)

Built 15+ reusable Next.js, React and TypeScript components and CRUD flows against REST APIs, with Cypress and Jest tests, in an agile team.

Next.js React TypeScript REST APIs Cypress Jest Jira Bitbucket Agile

Full Stack Developer

Freelance

Oct 2022 - Dec 2024 (2 years 2 months)

Built React/TypeScript front ends and Django REST APIs on PostgreSQL, with Jest/Cypress tests and CI/CD.

React TypeScript Django REST Framework PostgreSQL Jest Cypress CI CD

Automation Developer

Mengoni Engenharia & Arquitetura

Jan 2024 - Aug 2024 (7 months)

Replaced manual invoice intake with an AppSheet app using OCR capture, status tracking, and per-user permissions, plus JavaScript automations to standardize data.

Appsheets OCR JavaScript Automation