Backend Software Engineer with experience building serverless and API-driven systems. I work with TypeScript, Node.js, AWS, and modern backend stacks (NestJS, Express, PostgreSQL, DynamoDB).

Most recently I was at Tarmac.IO (2022-2025), working on K-12 education and product-locator platforms auth flows, reporting APIs, and reliability improvements across US, LATAM, and EU time zones.

• GitHub
• CV / Resume (PDF English CV - LaTeX CV built with autoCV)

Skills

• Languages & frameworks: TypeScript, JavaScript (ES6+), Node.js, NestJS, Express
• Cloud & architecture: AWS (Lambda, API Gateway, S3, RDS, DynamoDB, SQS, Cognito, CloudWatch), Serverless, Microservices, REST, GraphQL
• Databases & tools: PostgreSQL, MySQL, MongoDB, CI/CD, Git, AI-augmented development (Cursor, Copilot)

Experience

• Technical Upskilling (Aug 2025 – Present)
  Modernizing legacy full-stack projects by migrating from jQuery to React and TypeScript, and introducing CI/CD automation and AI-native tooling (Cursor/Copilot) to accelerate refactoring and diagnostics.

• Backend Software Engineer – Tarmac.IO (Mar 2022 – Aug 2025, Montevideo, Uruguay)
  Implemented AWS Cognito with SSO (Clever, ClassLink) and granular authorization for a high-traffic K-12 platform; built monitoring and alerting pipelines with Lambda and SQS; and delivered high-performance reporting APIs with aggregation, caching, and retry logic while reducing production incidents through defensive refactors.

• Backend Software Developer – CodigoDelSur (Sep 2021 – Apr 2022, Montevideo, Uruguay)
  Developed serverless applications with Node.js, TypeScript, and AWS in distributed teams using Scrum and agile practices.

• Backend Software Analyst – DESIGN-IT GmbH (Nov 2019 – Sep 2021, Montevideo, Uruguay)
  Built and deployed web products for international clients using PHP (Laravel) and Vue/Quasar, including responsive cross-platform applications.

• Technical Support Assistant – TiendaMIA (Mar 2018 – Jul 2019, Montevideo, Uruguay)
  Resolved production issues and maintained PHP/Magento e-commerce applications in a high-traffic environment.

Projects

• dotfiles – Automated developer environment setup for Linux/macOS using chezmoi and shell scripts for dotfiles and reproducible configuration.
  GitHub: github.com/DiegoFleitas/dotfiles

• Fullstack Modernization Project – Movie streaming search and country-level availability app (JustWatch-style), integrating external APIs and modern React + TypeScript front end.
  GitHub: github.com/DiegoFleitas/letterboxd-movie-justwatch

See the full list in the Projects section.

Education

• Technologist Degree in Computer Science – Universidad de la República (Udelar), 2018
• First Certificate in English (FCE) – University of Cambridge, 2014