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Igor Alves.

Software Engineer

Available for contract work

About six years building products remotely from Brazil for US companies. Lately: putting LLMs into real product workflows — prompt evaluation, AI-assisted editors, and automation pipelines.

  • React
  • TypeScript
  • Python
  • FastAPI
Merged pull requests in Stats, SuperDoc, Securo, and Mantine
Get in touchGitHub (opens in a new tab)

UTC−3 · overlaps US working hours

01.

About Me

Software engineer based in Brazil with about 6 years building products remotely. I care about clean APIs, predictable state, and UIs that stay fast under real load. Lately, most of my work has focused on putting LLMs into real product workflows: prompt evaluation systems, AI-assisted editors, and automation pipelines that save hours of manual work.

What I'm currently building →

Technologies I work with

React
TypeScript
Vue
Next.js
FastAPI
Node.js
Fastify
Python
PostgreSQL
MongoDB
Docker
AWS
02.

Experience

PraxentSenior Software EngineerPresent
Jul 2024 — PresentContractorRemote
  • ▸Built a tax-form analysis workflow for a lending platform using Python, AI, and OCR, reducing manual review and improving processing accuracy.
  • ▸Delivered React + TypeScript frontend components and Python backend services for document-processing flows, collaborating async with the international team.
  • ▸Shipped features on business-critical, regulated workflows where accuracy, trust, and operational quality are essential.
ReveloAI Training Engineer
Apr 2025 — Apr 2026Freelance (project-based)Remote
  • ▸Evaluate competing LLM outputs on real-world coding tasks, applying behavioral codes (hallucination, scope drift, verbosity, laziness) as structured training signal for frontier AI labs.
  • ▸Build behavioral data pipelines, design labeling rubrics, and contribute to reward-model development workflows using TypeScript and Claude HFI.
  • ▸Contribute to the human-feedback data infrastructure that improves LLM coding capability.
Borderless CodingFounding EngineerPresent
May 2024 — PresentCo-founderRemote
  • ▸Co-founded a developer platform built with Next.js, Fastify, and AWS; led technical architecture and product decisions.
  • ▸Built user-facing product flows and backend services end-to-end with hands-on ownership from implementation through iteration.
  • ▸Operate Borderless on evenings and weekends alongside primary engineering role, owning end-to-end product, engineering, and architecture decisions.
//platform.borderlesscoding.com
LuizaLabs (outsourced by Pisomtech)Senior Software Engineer
Sep 2020 — Mar 2024ContractRemote
  • ▸Built an automated lead-management platform with Python and FastAPI that replaced spreadsheet-based operations and cut processing time from 2 weeks to 2 hours.
  • ▸Delivered end-to-end features spanning backend services, business workflows, and frontend implementation; achieved 98% automated test coverage for fiscal and legal compliance.
  • ▸Developed React microfrontend flows and shared UI components using Material UI, a custom design system, and Module Federation.
Connectronic & earlier rolesFrontend Engineer
2018 — 2020Freelance & InternshipRemote
  • ▸Migrated a legacy Delphi ERP to a Vue-based web app with financial modules and payment integrations.
  • ▸Built dashboards, search/export flows, and product features across web and mobile using React, Angular, Vue, Node.js, and Ionic.
03.

Projects

WriteAssist

A personal productivity tool for writing and editing. Streamlines the writing workflow with AI-assisted suggestions, inline rewrites, and a distraction-free editor tuned for long-form work.

SwiftmacOS
Borderless Coding Platform

A community super-app for Brazilian developers pursuing global tech careers, combining social network, members area, and forum in a single product.

Next.jsFastifyAWS
Arandu

Open-source project focused on developer tooling and workflow improvements.

RustReactTypeScriptViteTailwindCSS
04.

Open Source Contributions

StatsPR #3165

Added native custom color support for widgets, including persisted custom values and localized color-picker labels.

SuperDocPR #2552

Implemented end-to-end support for hyperlinked DrawingML images (a:hlinkClick), preserving URL metadata from import through rendering.

SecuroPR #100

Fixed a typo in the Brazil rule pack to improve personal-care auto-categorization accuracy.

MantinePR #6233

Fixed a formatting typo on the Mantine docs Title component styles API page.

05.

Let's build something together.

Got a project in mind? I'm available for freelance and contract work.

contact@iguito.xyz
GitHub