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@andreecirillo

André Cirillo

@andreecirillo·São Paulo, Brazil·Joined October 2025

Architect 44

About

Systems Architect. Software Engineer. Full Stack Developer. Architect of Chaos, mastering cloud, legacy, and light.

Available for

Freelance working, techinical writing, speaking at conferences.

André Cirillo's blogs

Code Opsandreecirillo.hashnode.dev5 posts

About

Systems Architect. Software Engineer. Full Stack Developer. Architect of Chaos, mastering cloud, legacy, and light.

Available for

Freelance working, techinical writing, speaking at conferences.

André Cirillo's blogs

Code Opsandreecirillo.hashnode.dev5 posts

Articles Comments

Recently published

ACAndré Cirilloinandreecirillo.hashnode.dev·Mar 3 · 4 min read

Beyond WebSockets: High-Performance Real-Time Streaming with .NET 10 Server-Sent Events (SSE)

📡 The Real-Time Dilemma In order tracking systems, data freshness is everything. However, not every real-time scenario requires the full-duplex complexity of WebSockets or the heavy abstraction layer

ACAndré Cirilloinandreecirillo.hashnode.dev·Feb 25 · 6 min read

Challeges - JSON Processing - C#

⚙️ The Parsing Challenge Receive a JSON containing names and scores as strings. Clean the data and return only valid users (score between 0 and 100). [ {"name": " Alice ", "score": "295"}, {"na

ACAndré Cirilloinandreecirillo.hashnode.dev·Oct 14, 2025 · 2 min read

Codility - OddOccurencesInArray - JavaScript

🧩 OddOccurrencesInArray – Explained Line by Line The OddOccurrencesInArray problem asks to find the value that occurs an odd number of times in an array. Each element in the array appears exactly twice, except for one unpaired element. Example:A = [...

ACAndré Cirilloinandreecirillo.hashnode.dev·Oct 14, 2025 · 2 min read

Codility - CyclicRotation - JavaScript

🌀 Cyclic Rotation – Explained Line by Line The CyclicRotation problem asks to rotate an array to the right K times. Each rotation moves the last element to the front. Example:A = [3, 8, 9, 7, 6], K = 3 → Result: [9, 7, 6, 3, 8] Here's the code: func...

ACAndré Cirilloinandreecirillo.hashnode.dev·Oct 12, 2025 · 2 min read

Codility - BinaryGap - JavaScript

🧠 Binary Gap – Explained Line by Line The Binary Gap problem asks to find the longest sequence of zeros surrounded by ones in the binary representation of a given positive integer N. Example:N = 529 → Binary: 1000010001 → Gaps: 0000, 000 → Longest =...