Júlio Miguel

Over the past few years, I've focused on software engineering and backend development across fintech, logistics, education, retail automation, and custom software.

• Consultant and Software Engineer at Logshare, a startup that raised R$12M (~US$2.2M) in a 2024 seed round to expand its product portfolio and international reach. Standardized processes and migrated the backhaul algorithms to a scalable architecture for efficient route planning.
• Built Node.js WhatsApp chatbots for automated messaging at MyIntercâmbio, a study-abroad agency. The goal was to plug into the customer base and, based on business criteria, send automated messages suggesting relevant products. The app was written in Node.js and TypeScript using a few design patterns, most notably State to manage menus and navigation for concurrent users.

Tech Lead for CheffEscolar's finance module, ensuring accurate and effective financial reporting on school meal procurement for thousands of public schools in states such as Paraná, Mato Grosso do Sul, and Piauí.

• Modernize the monolithic architecture into a modular monolith (Feature-First)
• Migrate modules from Java 8 to Java 21 and Spring Boot 3
• Build event-driven architecture with Kafka
• Help build CheffEscolar's Backend for Frontend (BFF)

Led the technical evolution of the Faculty App, bringing in modern development and software architecture practices. Ran a team building scalable, resilient solutions, including an automated exam grading system used by 10,000+ professors.

• Implemented event-driven architecture and microservices
• Optimized performance and significantly cut operating costs
• Set up automated testing and CI/CD
• Mentored engineers and managed the team

Developed robust accounting and ledger systems, ensuring accuracy and reliability across high-volume financial transactions.

• Built RESTful APIs with Node.js and TypeScript
• Implemented complex accounting systems
• Practiced test-driven development (TDD)
• Integrated with financial systems

Delivered integration solutions for legacy Delphi systems, modernizing the infrastructure and shipping new features.

• Wrote REST APIs for system integration
• Created chatbots for WhatsApp and Telegram
• Developed desktop apps with cloud integration
• Maintained and evolved legacy systems

Grupo FCamara · Backend Software Engineer Feb 2022 — May 2022 · 4 mos Built an idea management platform with Node.js/TypeScript, wrote tests, and documented the APIs.

AWS-Code / Ayt1.dev · Backend Software Engineer Jul 2021 — Feb 2022 · 8 mos Shipped scalable Node.js microservices, integrated AWS services, and implemented RESTful APIs.

Intelitrader · ASP.NET Developer Jan 2021 — Mar 2021 · 3 mos Wrote financial risk analysis software in C# and ASP.NET and integrated financial APIs.

MyIntercambio · Node.js/TypeScript Backend Developer Aug 2020 — Jan 2021 · 6 mos Created a WhatsApp chatbot with Node.js to automate customer service workflows.

Key technologies: Node.js, TypeScript, C#, ASP.NET, AWS, PostgreSQL, MongoDB, REST APIs, Docker, Git