Building digital experiences

I'm Hugo Alkimim, a senior full-stack developer building solutions across web, mobile, and beyond

I build software that solves real problems, focusing on clean code and user-centered solutions that make a difference.

This is me

Hi, I'm Hugo!

I'm Hugo Danilo Santos Alkimim, a senior full-stack developer based in Belo Horizonte, Brazil. I've built features for eBay's web platform through BairesDev and offline-first React Native apps used by major Brazilian mining companies. I work mainly with React, React Native, Node.js, TypeScript, and AWS.

I'm involved in every step of the process: from discovery and design to development, testing, and deployment. I focus on delivering scalable, high-quality results that create positive user experiences.

Where I've worked

Experience

AI Research · Remote

ReactNode.jsTypeScriptAI/MLData AnnotationQA

Built web pages, features, and full-stack projects under tight timeframes to generate high-quality training data for AI coding models. Evaluated and provided feedback on AI-generated code.

  • Built numerous web pages, components, and features across various frameworks to produce training data for AI models.
  • Developed full-stack projects with React, Node.js, and TypeScript under rapid turnaround requirements.
  • Evaluated AI-generated code for correctness, best practices, and edge cases.
  • Provided detailed feedback and annotations to improve model output quality.
  • Reviewed code submissions across numerous projects for correctness and adherence to guidelines.
  • Served as a squad reviewer, auditing other reviewers' work and onboarding them on project standards.
  • Ensured quality and consistency of training datasets with meticulous attention to detail.
BairesDev · Remote

ReactTypeScriptGraphQLNode.jsMarko.js

Full-stack development at eBay, building web applications at scale.

eBay

  • Full-stack developer using React.js, GraphQL, Marko.js, and Node.js.
  • Developed the 'Shop The Look' feature for web and mobile web, which was shown on the eBay homepage reaching millions of users.
  • Built new return automation pages.
  • Wrote unit and E2E tests with Jest, Vitest, Playwright, and Percy.
  • Improved E2E test runtime performance.
  • Implemented Content Security Policies for 3 projects.
  • Improved PR and deployment pipelines using Jenkins.
Statum Geotecnia · Belo Horizonte, Brazil

React NativeReactTypeScriptApp Store/Play StorePythonFigmaMaps

R&D team member developing offline-first mobile apps for geotechnical monitoring used by major Brazilian mining companies.

Sentnel & Geomap

  • Developed two offline-first React Native apps for Android and iOS.
  • Used by geotechnicians at major Brazilian mining companies for data collection and dam inspections.
  • Built map features with high-quality drone image overlays and instrument interaction.
  • Planned APIs used by the mobile applications.
  • Published and managed both apps on Play Store and App Store.
  • Developed solutions using Python for the water resources sector.
  • Planned features, UX, and UI using Figma.
Freelance · Brazil

React NativeNext.jsTypeScriptNode.jsAWS

Built mobile and web applications end-to-end, leading small teams from discovery through deployment across multiple clients.

  • Developed mobile applications using React Native.
  • Implemented features using React, Next.js, React Native, and Node.js.
  • Led small teams of developers and designers throughout projects.
  • Refactored and reimplemented legacy code with best practices.
  • Planned and prototyped UI and UX designs.
  • Implemented tests using Jest.
  • Planned and developed APIs for mobile and web apps.
  • Utilized AWS services: Lambda, EC2, DynamoDB, and RDS.

Want to collaborate?

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