Ciro Spaciari

Frontend Developer

https://talent.gravityer.com/ciro-spaciari

Bringing WebSockets, Http/Https High Performance servers for PyPy, CPython, and helping to bake Bun 🍞

São Paulo, São Paulo, Brazil

Key Strengths

Extensive experience with JavaScript and TypeScript, foundational for Frontend Development.
Demonstrated ability to work with performance-critical systems (bun, socketify.py, kyros), indicating strong problem-solving and optimization skills.
Exposure to multiple programming languages (Rust, Zig, C++, Python, Ruby) suggests a broad technical aptitude and willingness to learn.

Cultural & Operational Fit

Cultural Fit Analysis

The candidate's project portfolio shows a strong inclination towards low-level systems, performance optimization, and backend/runtime development, which deviates significantly from a typical Frontend Developer role. While demonstrating strong technical capabilities, the alignment with a pure frontend role's day-to-day tasks and typical project focus appears limited. The diversity of languages and project types indicates a curious and versatile individual, but the specific focus is not frontend-centric.

Soft Skills & Operational Fit

Insufficient data to assess soft skills or operational fit. No psychometric test results or interview feedback provided.

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Identifying your key strengths…

Evaluating your skill match against the job requirements…

Assessing your cultural and operational fit

Projects

sandbox-runtime

October 20, 2025 – Present

A lightweight sandboxing tool for enforcing filesystem and network restrictions on arbitrary processes at the OS level, without requiring a container.

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awesomeyou

February 27, 2025 – Present

🇧🇷 Awesome You — Mais que projetos incríveis, conheça Pessoas Incríveis!

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kyros

April 1, 2024 – November 16, 2024

High Performance WebSocket, HTTP/1.1, H2, H3 Server and Client

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socketify.py

May 24, 2022 – September 23, 2025

Bringing Http/Https and WebSockets High Performance servers for PyPy3 and Python3

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socketify.rb

January 5, 2022 – January 8, 2023

Bringing WebSockets, Http/Https High Peformance servers for Ruby

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bun-releases-for-updater

October 28, 2021 – Present

bun-releases-for-updater — repository

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bun

April 14, 2021 – Present

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

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February 13, 2021 – August 8, 2021

ki — repository

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format-helper

April 25, 2017 – April 3, 2020

Helper multi idioma para formatações com data, hora, valores, moedas e timespan.

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jscomet

April 25, 2017 – September 4, 2020

Create apps and a fast MVC website with OO class like ES6/TypeScript/Babel features with truly private vars and functions, type validations, function overloads, all in runtime and create libraries like browserify and reference this in your projects.

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Key Strengths

Extensive experience with JavaScript and TypeScript, foundational for Frontend Development.
Demonstrated ability to work with performance-critical systems (bun, socketify.py, kyros), indicating strong problem-solving and optimization skills.
Exposure to multiple programming languages (Rust, Zig, C++, Python, Ruby) suggests a broad technical aptitude and willingness to learn.

Cultural & Operational Fit

Cultural Fit Analysis

Soft Skills & Operational Fit

Insufficient data to assess soft skills or operational fit. No psychometric test results or interview feedback provided.

Ciro Spaciari

Key Strengths

Cultural & Operational Fit

Top Skills

Skills

Projects

Key Strengths

Cultural & Operational Fit