About

About

I'm Gabriel Vinhaes de Lima, Software Engineer. I help growing companies gain predictability, speed, and cost control by organizing digital operations.

Photo of Gabriel Vinhaes de Lima

How I help

  • Reliability & observability: fewer incidents and faster diagnosis.
  • Platform & delivery: standardized pipelines and faster feedback.
  • Data & event streaming: resilient ingestion and reprocessing.
  • Legacy modernization: safer changes with less risk.

Recent experience

Platform Engineer

Courier

Mar 2025 - Present

Focused on reliability, connectivity, and event pipelines for digital operations.

  • WebSockets & Connectivity: fixed 400 errors, restructured batching, and strengthened the connection layer with instrumentation, circuit breakers, safe shutdowns, chaos tests, CI/CD, and dual writes.
  • Event Log Streaming: redesigned the pipeline with batching, S3 dual-read, and a resilient reprocessor, plus metrics, autoscaling, and rate limiting.
  • Platform & Infra: improved CI/CD with BuildKit/Buildx and advanced cache (~40% faster builds), created compliant AWS IaC modules, and supported teams with docs and training.

Senior Software Engineer

Mirante Tecnologia (freelance)

Aug 2025 - Dec 2025

Decision automation and legacy modernization with multi-agent systems.

  • Designed a 10+ agent architecture for code analysis, rule extraction, and validation.
  • Built a reproducible environment to validate legacy behavior.
  • Modeled control/data flow to extract rules and validate tests.

Senior Software Engineer

Mercado Livre

Feb 2023 - Jul 2025

Led initiatives to improve performance, rules, and operational reliability at scale.

  • Built shared tooling to standardize critical business rules.
  • Reduced response time and improved operational throughput.
  • Delivered insights to support safer decision-making.
  • Led cross-team projects to modernize critical workflows.
  • Mentored engineers and shared best practices.
  • Aligned teams around standards and quality.

Software Engineer

Mercado Livre

Sep 2021 - Feb 2023

Logistics restriction systems and operational reliability.

  • Shipped new features and improved stability of restriction systems.
  • Improved performance across critical logistics services.
  • Supported UI design for restriction management.

Senior Software Engineer

Varsity Tutors

May 2024 - November 2024

Focused on data flows and system stability for a high-volume operation.

  • Streamlined data integrations and reduced manual maintenance.
  • Created shared utilities to speed up delivery.
  • Improved secure access for students and staff.
  • Resolved critical incidents and shipped high-impact improvements.

Teacher

UniCEUB

July 2022 - July 2024

Taught logic and web development with a focus on practical problem solving.

  • Taught programming courses for early and advanced cohorts.
  • Designed assessments and course materials.
  • Supported students with mentoring and feedback.
  • Balanced theory with hands-on projects.

Software Engineer

Lantern

September 2021 - September 2022

Led the MVP delivery of a digital wallet product.

  • Owned end-to-end delivery of the first product version.
  • Improved onboarding and transaction reliability.
  • Coordinated partner integrations for payment flows.
  • Raised code quality and delivery standards.

Software Architect

GigaCandanga

February 2021 - September 2021

Led delivery of a new ERP system for a growing business.

  • Designed the architecture and delivery plan.
  • Built key modules and ensured performance at scale.
  • Set up infrastructure and release pipelines.
  • Guided code reviews and knowledge transfer.

Analyst Developer

Ambev Tech

October 2020 - September 2021

Built scalable e-commerce experiences and improved delivery speed.

  • Shipped customer-facing features that increased conversion.
  • Improved release pipelines to reduce delays.
  • Mentored junior developers.
  • Strengthened testing to reduce production issues.

Full-stack Developer

Citara Labs

August 2019 - April 2020

Delivered data-heavy applications and improved reliability.

  • Built multi-source data products.
  • Improved quality across customer-facing and internal systems.
  • Onboarded and supported new team members.
  • Collaborated on product refinements.

Software Developer

Mirante

January 2018 - July 2019

Maintained and evolved critical enterprise systems.

  • Delivered a new ERP for a tourism business.
  • Enhanced features and improved stability of legacy systems.
  • Supported interns and knowledge sharing.

Technical details

Spoken languages

  • English
  • Portuguese
  • Spanish

Front-end

  • React
  • TypeScript
  • Next.js
  • JavaScript
  • HTML5/CSS3
  • Redux
  • Tailwind

Programming languages

  • Golang
  • Python
  • Java
  • Node.js
  • GraphQL
  • Spring

Infrastructure & cloud

  • AWS
  • Azure DevOps
  • Docker
  • Kubernetes
  • PostgreSQL
  • Cassandra

Education

Post-Graduation in Data Science and Machine Learning

UniCEUB - Centro Universitário de Brasília

2020 - 2022

Bachelor in Computer Science

UniCEUB - Centro Universitário de Brasília

2016 - 2019

Certifications

AWS Fundamentals: Going Cloud-Native

AWS

2023

AWS Fundamentals: Building Serverless Applications

AWS

2023

Applied Data Science with Python

Coursera

2022

Full-Stack Web Development with React

Coursera

2022