Guilherme Stein Kuhn

Software Engineer @ Mercado Livre Brasil

About

Hi! I'm Gui 😅 Computer engineer since 2023, software developer since 2018, and passionate about new technologies since forever. Experience in critical systems, with high availability and high-volume processing. Full-Cycle professional with practical skills in all stages of the development cycle.

Country

City

Brazil

Industry

Information Technology & Services

Skill

API REST, Node.js, MongoDB, SaaS, Otimização de sistemas, Princípios de design, Resolução colaborativa de problemas, LLM, XML, Engenharia de prompt, LangChain, Garantia da informação, Fila de mensagens, Google BigQuery, Kibana, Datadog, Golang, Iaac, Tests, SRE (Engenharia de confiabilidade do site)

Experience

Software Engineer

Mercado Livre Brasil

2025-5 - Present · 1 yr 5 mos

São Paulo, Brazil

- Backend development of core services (Put Away) for warehouse operations across Latin America using Kotlin, Java, MySQL, Queues, Streams, etc. - Development and maintenance of event-driven services with average throughput of 15k RPM and considerable importance in Meli CDDs - Integrations with Robotics teams and cutting-edge solutions for Warehouse Management

IT ENGINEERING ANALYST PL

Itaú Unibanco

2024-6 - 2025-5 · 1 yr

São Paulo, Brasil

- Development and maintenance of APIs, focusing on modernizing credit card invoice journeys - Infrastructure as Code (IaC) using Terraform - Observability and monitoring with Prometheus and Grafana - AWS Stack for public Cloud - Documentation using OpenApi - N3 support for incidents

Mid-level software engineer @Conversion

ZENVIA

2023-12 - 2024-5 · 6 mos

- Development of activities and corrections for a chatbot product with high daily volume - Working with microservices in Node.js for our APIs and React on our visual platforms - Messaging using AWS SQS, CloudWatch, etc. - Integration with services such as Mercado Pago, RD Station, OLX, Shopify, Facebook, Paypal, etc. - Technical documentation

Junior software engineer @Channels

ZENVIA

2022-6 - 2023-12 · 1 yr 7 mos

- Development of integrations between Zenvia and Meta (Whatsapp) aiming at Customer Experience services, generating unique communication experiences from companies to their users - Implementation of microservices in TypeScript, Java and Go lang with Clean Architecture - Orchestration by Kubernetes - Asynchronous communication using Kafka - Test development (unit., e2e) - CI/CD flow - OpenAPI - N3 Support

Software development engineer

Grupo FioForte

2021-7 - 2022-5 · 11 mos

- Construction of delivery pipelines in lead prospecting systems, automation of routine tasks and management with a direct impact on day-to-day life - Work leading a team in the use of Next.js, React.js, Node.js and MongoDB - Use of unit tests and CI/CD flow to ensure quality, effectiveness and scalability in solutions

Fullstack developer

Grupfy

2021-3 - 2022-2 · 1 yr

- Development of a membership and association management application - Implementation of user management, payments, reservations and reporting functionalities - Use of Node.js, React, MySQL, OOP and agile methodologies

Software developer

Adapti - Soluções Web

2020-4 - 2021-3 · 1 yr

- Development of web projects using agile methodologies - Experience with the Laravel framework, HTML5, CSS3, Javascript, Bootstrap and Figma - Direct contact with clients in strategic project meetings