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Achievement: Pair Extraordinaire

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KallasLima/README.md

Kallas Lima

I'm a software engineer based in Belo Horizonte, Brazil, with experience as a Staff Engineer and Engineering Manager.

I work across backend services, web and mobile applications, infrastructure and production AI. I like to understand who uses a product and what needs to change before choosing the technology, and stay involved from architecture and implementation through delivery and operation.

Portfolio · LinkedIn

Kallas Lima — Software engineer, Products, Systems and AI

Selected work

Project What I worked on
Capacity Planner Recurring capacity planning, conflict-aware edits and atomic scenario changes across a Go/PostgreSQL API and a React interface.
Creative Workflow Studio A Figma plugin and backend prototype for copy, localization and image-job workflows, with persisted usage and audit records. Model outputs are demo fixtures.
My website An interactive 3D portfolio with chapter navigation, progressive loading and browser-performance work.

More work

  • Weather & Air: React Native place search with explicit location selection, weather and air-quality integrations, cancellation and partial-failure handling.
  • The Mixing Book: A Flutter recipe browser with ingredient search, category filters and complete preparation pages.
  • Service Refactoring Notes: My case study on password migration, bounded SQL enrichment, error contracts and test isolation in an existing Python service.

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  1. capacity-planner capacity-planner Public

    Go, PostgreSQL, and React capacity planning with conflict-safe edits and atomic scenarios.

    TypeScript

  2. creative-workflow-studio creative-workflow-studio Public

    Local Python/React/Figma workflow prototype with deterministic generation, usage and audit records.

    Python

  3. portfolio-website-source portfolio-website-source Public

    Curated Three.js portfolio source with safe local preview and disabled contact/telemetry.

    JavaScript

  4. weather-and-air weather-and-air Public

    React Native weather and air quality explorer with explicit offline demo and keyless live providers.

    TypeScript

  5. cocktail-recipes cocktail-recipes Public

    Flutter recipe browser with ingredient search and an original zero-proof demo collection.

    Dart

  6. service-refactoring-notes service-refactoring-notes Public

    Engineering case study: password migration, bounded SQL enrichment, traceable errors and test isolation.