Lorenzo Aceti
Software Engineer @ Brex
About
Software Engineer with 5 years of experience building complex, high scale systems and leading technical initiatives across engineering and product. Currently a Software Engineer at Brex, a global fintech company building financial technology and AI powered products for modern businesses. I work on frontend engineering, helping build scalable, high quality product experiences with strong focus on performance, reliability, and user impact. Some highlights of my work:● Led the development of an LLM powered product for report analysis, designing the integration between non deterministic outputs and a deterministic UI system, while improving team productivity through agentic coding tools such as Claude Code and Cursor.● Built a server driven framework using React for both web and PDF generation, including a Node.js service capable of rendering reports in milliseconds.● Improved data visualization performance by over 80 percent by extending Highcharts with custom modules and optimizing real time rendering.● Orchestrated product vision and full stack delivery of an award winning SaaS used as a flagship case, helping position the company among the top 6 energy startups in Brazil.I have experience with technologies such as React, Next.js, TypeScript, JavaScript, Node.js, Python, Django, and Figma.Take a look at my portfolio: https://lorenzoaceti.com/
Brazil
Niterói
Computer Software
Liderança técnica, Gestão de projetos, JIRA, Arquitetura de soluções, Agentes de IA, Claude Code, Next.js, React.js, Node.js, Django, TypeScript, Python, Tailwind CSS, Prisma, tRPC, Figma (Software), Django REST Framework, API REST, PostgreSQL, JavaScript
Experience

Engineering Manager
● Lead multiple projects simultaneously, defining roadmap and product decisions in collaboration with founders, sales, and CSEs. ● Led the development of an LLM powered report analysis product, designing the integration between non deterministic outputs and a deterministic UI system, while improving team productivity through agentic coding.

Frontend Software Engineer
● Built a server driven framework using React for web and PDF generation, including a Node.js service capable of rendering reports in milliseconds. ● Developed a mock server using MSW abstracting the Controller Service Repository pattern, enabling parallel development even with complex APIs not yet available. ● Improved data visualization performance by over 80% by extending Highcharts with custom modules and optimizing real time rendering.

Full-Stack Software Engineer
Rio de Janeiro, Brasil
● Built end to end platforms for companies such as Petrobras and Equinor, including an award winning SaaS that helped position the company among the top 6 energy startups in Brazil. ● Acted as the main technical reference, defining the stack, architecture, and engineering standards adopted across projects. ● Designed the design system for three large applications and established it as the company wide architectural standard.

Full-Stack Software Engineer
Rio de Janeiro, Brasil
● Developed a large scale hybrid platform using Next.js and Django, which became a flagship case in the company portfolio and helped attract new international clients. ● Led the frontend refactor of a core product by designing a new design system and migrating the stack from React and JavaScript to Next.js and TypeScript. ● Implemented caching strategies using Next.js and authentication with JWT, significantly improving application performance and security.
Lorenzo Aceti's Contact Information
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