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jorelius/README.md

Jorel Fermin — jorelius 👋

Ex-AWS engineer (OpenSearch Serverless). I build tools for people who run infrastructure.

Website · LinkedIn · @JorelFermin

🧮 Building Cloud Cost Analyzer — point it at an AWS account and get back exactly what's wasting money and what to change. 89 optimization rules across compute, storage, databases, networking, and serverless. CLI-first, self-hostable via Docker, free community tier. Written in Rust; run it fully air-gapped and nothing leaves your network. Drop cost scans into CI with cca-scan-action.

🛠 Consulting via Poststrata — AWS cost reviews, BGP/VPN migrations, and production network troubleshooting. Recently took a factory VPN from ~92 drops/week to zero, then migrated it static → BGP with ~30-second automatic failover across two ISPs and nine VPCs.

Before this: ~4 years at AWS on OpenSearch Serverless — shard management, autoscaling, and encryption-at-rest.

Working with: Rust · AWS · Distributed systems · BGP / IPsec · Cloud cost / FinOps · Docker

📕 Latest posts

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  1. Speak Speak Public

    Speak is a command line utility for reading text aloud or writting the audio data to file.

    C# 3

  2. Watch Watch Public

    Trigger command when a watched resource (e.g. Clipboard, Filesystem, Http, Ftp, etc) changes.

    C# 1

  3. Fenrir Fenrir Public

    service testing framework that load tests, stresses, and compares results of http services

    C# 1

  4. Fermin.Text.Json.Converters Fermin.Text.Json.Converters Public

    Set of System.Text.Json Converts that are not included by default.

    C# 2 2

  5. LiquidGenerator LiquidGenerator Public

    Cli tool for applying Liquid and Razor templates to a data source (e.g. json file)

    C# 1

  6. AllSeer AllSeer Public

    Cli tool that makes searching images as easy as grep. Tool supports extracting predictions and generating output images with prediction markup.

    C# 2