kelvin@cluxnei:~$ neofetch

 ████ █     █   █
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kelvin@cluxnei:~$ cat about.md

kelvin@cluxnei:~$ tree ~/stack

kelvin@cluxnei:~$ git log --oneline ~/career

1. 9f2c41a 2024 → now Software Engineer

   enterprise AI & automation platforms

   Kubernetes workspace orchestration with autonomous agent runtimes; conversational-AI middleware between chat providers and bots; multi-tenant quality-audit platform over audio, chat and ticket channels; high-throughput event ingestion services.

   NestJS.NET 10LangGraphKubernetesRabbitMQPostgreSQLMongoDBVue 3

2. 3b81d07 2023 → 2024 Senior Software Engineer

   product & talent consultancy

   Delivery on client products across backend and frontend, with a focus on architecture reviews and getting teams to a shippable state.

   TypeScriptNode.jsReactAWS

3. c47e9b2 2022 → 2023 Senior Software Engineer

   IoT & water-tech scale-up

   IoT, web and mobile systems end to end. Microservice architecture, architecture diagrams and documentation, automations, and high-availability applications running at international scale.

   NestJSTypeScriptPostgreSQLMongoDBRedisReact NativeAWSDocker

4. a09f5de 2020 → 2024 Senior Software Engineer

   digital product agency

   Products for clients across the country — picking the right technology per case and holding the line on robustness, quality and scalability.

   LaravelVueNode.jsMySQLReact Native

5. 61d3fa8 2019 → 2022 Software Engineer

   education technology

   Designed and built business-critical systems: CRM, billing, technical support, business intelligence and learning platforms. Modernized a legacy monolith into isolated services, integrated third-party ERP/CRM systems, and automated distribution-center logistics.

   PHPLaravelMySQLintegrationsBI

6. de70c15 2019 Software Engineer

   crypto exchange MVP

   Built the MVP of a cryptocurrency exchange platform — mobile apps and microservices, plus review and mentoring for the tech team.

   React Nativemicroservices

7. 7a4b0e3 2018 → 2019 Web Developer → Full Stack

   web agencies

   Data modeling, RESTful APIs and backends for mid- and large-size companies; e-commerce and CMS builds; interfaces from predefined layouts.

   PHPLaravelMySQLVueWebpack

kelvin@cluxnei:~$ ls -la ~/projects

total 7  // three of these run in the browser — click the name

• drwxr-xr-x kelvin 2026-09-07

  universe-simulation/ live

  Gravitational N-body sandbox in three.js with an octree for force approximation. Pick a scenario — protoplanetary disc, binary star, stellar collision, cluster, black hole — tune the masses, body count and orbital radii, then watch it settle or tear itself apart.

  JavaScriptthree.jsoctreeWebGL

  livesource

• drwxr-xr-x kelvin 2026-09-07

  microverse-simulation/ live

  Predator–prey ecosystem on a hand-written 3D renderer — perspective projection and a painter’s algorithm over boxes, no library. Six species carry a six-gene genome where every gain is paid for: speed squares the metabolism, fertility buys a weaker, shorter-lived offspring. The analytics panel tracks each gene, phase space and cause of death.

  JavaScriptgenetic algorithm3D from scratchcanvas

  livesource

• drwxr-xr-x kelvin 2024-06-23

  game-of-life/ live

  Conway’s rules with three species competing on one grid. Each runs its own B3/S23 life cycle, and then they turn on each other: fungi smother the green cells, white globules clear the fungi. Seeded at random, so no two runs settle the same way.

  JavaScriptcellular automatacanvas

  livesource

• drwxr-xr-x kelvin 2024-05-04

  my-1brc/ archived

  My run at the One Billion Row Challenge — parsing and aggregating 1e9 rows, chasing the runtime down one profiler flamegraph at a time.

  JavaScriptperfstreams

  source

• drwxr-xr-x kelvin 2022-10-12

  whatsapp-sticker-plugin/ archived

  Cordova plugin for sharing sticker packs to WhatsApp. Picked up by other developers and still the most-starred thing I have published.

  TypeScriptCordovaAndroid★ 18

  source

• drwxr-xr-x kelvin 2021-09-26

  database-from-scratch/ archived

  A small relational database written in C++ — pager, B-tree indexes and a toy query layer, built to understand what an ORM is hiding.

  C++B-treestorage engines

  source

• drwxr-xr-x kelvin 2024-02-23

  clean-arch-boilerplate/ wip

  Opinionated TypeScript backend starter — layered clean architecture, dependency inversion at the edges, tests wired from commit zero.

  TypeScriptClean ArchitectureTDD

  source

→ 60+ more public repositories on GitHub

kelvin@cluxnei:~$ cat contact.txt

• githubgithub.com/Cluxnei
• linkedinin/kelvin-cluxnei
• email[email protected]copy
• whereSorocaba, SP — Brazil (open to remote)