Hi, I'm Victor:

Software & ML Engineer

I build intelligent tools that make complex tasks feel intuitive and fulfilling.

Victor Hofstetter
I'm a software and machine learning engineer with a passion for building polished, intelligent tools that make applications intuitive and powerful.

Background

I started coding at eight years old in Brazil. Shaped by limited resources, a lot of curiosity, and a drive to figure things out on my own, by high school I was freelancing as a software engineer, and I was the national champion of the Brazil Artificial Intelligence Olympiad.

I now work as an engineer at Amazon, while also leading a startup I founded to combine AI with learning, and taking on freelance and passion projects that push the boundary between art and technology. My academic background in computer science and mathematics keeps me grounded in technical rigor, but I’m most energized when I’m building something that feels thoughtful from the inside out.

Beyond Engineering

What I build is shaped by how I see the world—and I see it through more than just a technical lens. I’ve spent years learning languages, studying disciplines outside of tech, and diving deep into hobbies that demand creativity and discipline. These experiences have taught me to think across boundaries, stay adaptable, and keep learning with intention.

I believe that engineering is a kind of storytelling. Every product tells a story about what it values and who it’s for. When I’m not building, I’m usually exploring other ways to understand people and systems—through music, culture, or movement. That perspective always finds its way back into the work.

Services & Expertise

I offer a range of specialized services to help bring your ideas to life.

Front-End Development

I create responsive, performant websites with modern frameworks like Next.js and React, and native iOS and Android apps. From personal portfolios to complex e-commerce solutions, I focus on clean code and exceptional user experiences.

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Back-End Development

I build robust, scalable back-end systems using Node.js, Python, and various database technologies. My solutions include RESTful APIs, GraphQL endpoints, and microservices architectures.

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Fullstack Applications

I develop end-to-end web applications that combine elegant front-ends with powerful back-ends. My fullstack expertise ensures seamless integration between all layers of your application.

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Machine Learning Models

I design and implement custom ML solutions for real-world problems. From computer vision to NLP, I build models that deliver accurate results and can be effectively integrated into production systems.

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My Approach

Discovery & Planning

I begin by thoroughly understanding your goals, requirements, and constraints. This involves detailed discussions, research, and analysis to establish a clear vision for the project.

The outcome is a comprehensive project plan with defined milestones, technologies, and deliverables.

01

Design & Architecture

I create detailed designs and technical architectures that serve as the blueprint for development. This includes UI/UX designs, database schemas, API specifications, and system diagrams.

This phase ensures that all stakeholders have a clear understanding of the solution before development begins.

02

Development & Testing

I implement the solution using modern development practices, including test-driven development, continuous integration, and regular code reviews. Quality is built into every step of the process.

Regular updates and demos ensure that you're always informed about progress and can provide feedback throughout development.

03

Skills & Technologies

JavaScriptTypeScriptReactNext.jsTailwindNode.jsExpressSQLPythonTensorFlowPyTorchNoSQLSwiftKotlinGraphQLAWSDocker
DockerAWSGraphQLKotlinSwiftNoSQLPyTorchTensorFlowPythonSQLExpressNode.jsTailwindNext.jsReactTypeScriptJavaScript
Selected Projects

A collection of work that showcases my expertise in web development, mobile applications, and machine learning.

Yaiba

Yaiba

The world's first AI-powered kanji learning app, powered by a proprietary ML model to provide real-time feedback on handwriting.

MobileBack-EndNoSQLMLComputer VisionNLPEducationUI/UX
GopherTunnels

GopherTunnels

A navigation system for university campuses with tunnels that helps students find the most efficient routes between buildings.

MobileBack-EndGraphQLAlgorithmsUI/UX
Overwatch Competitive Tool

Overwatch Competitive Tool

The Overwatch Competitive Tool (OWCT) is a suite of free online tools for players of the competitive hero shooter Overwatch.

WebAlgorithmsDataMediaUI/UX
Math to LaTeX

Math to LaTeX

Machine Learning model to convert handwritten math to LaTeX expressions; published as a conference paper at ICLR 2025.

ResearchPyTorchMLComputer VisionNLPEducation
Let's work together

I'm currently available for freelance work and interesting projects.