Software Engineer with a strong interest in system design, backend architecture, and developer-facing platforms.

Over time, my work has shifted from building individual features to thinking more about how systems evolve, where trust lives, and how decisions are made under uncertainty. I care about building software that remains understandable, adaptable, and reliable as it grows.

I started out working across the stack, focusing on shipping features and solving concrete problems. As projects grew in complexity, I became increasingly interested in the structure behind the code: how state is managed, how responsibilities are split, and how small decisions compound over time.

This led me to explore:

• backend systems and APIs
• client–server trust boundaries
• session and state modeling
• observability and debugging tools
• risk, abuse, and edge-case driven design

I enjoy projects where correctness and clarity matter, and where trade-offs are discussed openly rather than hidden behind abstractions.

Some principles that tend to guide my work:

• Clarity over cleverness
  I prefer solutions that are easy to reason about, even if they are not the most concise.

• Explicit boundaries
  I try to make trust, ownership, and responsibility visible in the architecture.

• Iteration over premature optimization
  I value designs that allow systems to evolve without locking in early assumptions.

• Failure as a design input
  I think about how systems fail, degrade, and recover, not just how they behave when everything goes right.

• Long-term maintainability
  Code should still make sense to someone (including myself) months later.

My interests are broad and continue to evolve, but commonly include:

• Backend and API design
• Stateful systems and session modeling
• Client-side and server-side interaction
• Developer tooling and internal platforms
• Observability, testing, and debuggability
• Risk, abuse, and edge-case driven systems

I’m comfortable moving between domains when the problem requires it, rather than focusing on a single niche.

I don’t strongly tie my identity to specific tools, but I’m currently most comfortable with:

• TypeScript / JavaScript — primary day-to-day language
• Node.js / Bun — backend services and tooling
• Browser runtimes — client-side behavior and APIs
• HTTP & API design

I’m also increasingly interested in:

• Rust, particularly for performance-critical or correctness-sensitive components
• lower-level system concerns once boundaries are well defined

I generally prefer choosing tools after understanding the problem, not before.

I enjoy working in environments that:

• value thoughtful system design
• encourage discussion and questioning
• are comfortable with trade-offs
• care about correctness and maintainability
• treat engineering as a long-term practice

• Email: contact@arirocha.com
• LinkedIn: https://www.linkedin.com/in/arirocha
• GitHub: https://github.com/ari-rocha