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馃幆
Focusing
馃幆
Focusing
4 followers · 4 following
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@ahmetb

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Achievement: StarstruckAchievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLOAchievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

Achievements

Achievement: StarstruckAchievement: Pull Sharkx3Achievement: Public SponsorAchievement: QuickdrawAchievement: YOLOAchievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

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Slymaster/README.md

Sylvain Rey. Creating products. Engineering systems. Current focus: Certified Kubernetes Administrator, awaiting clearance.

Role: Founder, Guarani LLC Languages: French, English, Spanish Contact: sylvain.rey.pro@protonmail.com

I build independent software products on 7+ years of backend engineering. My roots are Java, Spring Boot and event-driven systems. Today I also ship for mobile, desktop and the web, with the same care for the interface and for the systems behind it.

Now: Guarani AI

Guarani AI, private beta, member of NVIDIA Inception. Sylvain Rey, Founder and Principal Systems Architect. Modules: Guarani Verify, Guarani Mesh, Guarani Mobile CI.

I founded Guarani LLC, where I build Guarani AI as Founder & Principal Systems Architect. Guarani AI joins autonomous software quality, multi-agent security verification and an enterprise LLM gateway into one explained verdict for every release. It is in private beta, and Guarani LLC is a member of the NVIDIA Inception program. guarani-llc.com 路 github.com/guarani-llc

Alongside it, I am developing my Kubernetes skills through hands-on labs and preparing for the Certified Kubernetes Administrator (CKA) exam.

Open source

masame: a craftsman's Go board, and a teacher that plays like a human. TypeScript, KataGo, macOS and Windows. isitfixed: checks whether security advisory ranges match what was published, including the fix. Go CLI. rynler-token-cost-calculator: browser-only token cost calculator. Bring your own rates and usage. JavaScript, web. blockchain-indexer-architecture-case-study: architecture study of a reliable EVM/L2 indexer, covering reorgs, Kafka ordering and idempotent writes.

Independent products

Private projects, described without names or links to their repositories.

Product Platform What it does
Personal wardrobe iPhone Organizes clothes from photos, assembles outfits and plans looks with items already owned.
Project workspace Desktop & web Brings research, project materials and connected tools together to create and organize reusable deliverables.
Developer platform Web & API Manages API access, tracks usage and controls spending from a single workspace.

Engineering

Engineering foundations. Backend: Java, Spring Boot, REST APIs, distributed systems. Data and messaging: PostgreSQL, Redis, Kafka, RabbitMQ. Delivery: Docker, GitHub Actions, Kubernetes (CKA prep). Also ships in TypeScript, Go, Tauri, three.js.

I care about explicit guarantees, clear transaction boundaries, reliable retries and testing what happens when things fail.


French 路 English 路 Spanish 路 sylvain.rey.pro@protonmail.com 路 guarani-llc.com

Pinned Loading

  1. blockchain-indexer-architecture-case-study blockchain-indexer-architecture-case-study Public

    Documentation-only architecture case study for a reliable EVM/L2 indexer: chain reorgs, Kafka ordering, idempotent persistence and recovery.

  2. masame masame Public

    A craftsman's Go board, and a teacher that plays like a human. KataGo, macOS & Windows, French & English.

    TypeScript 41 1