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Alessandro G.AG

Alessandro G.

Rust & Solidity Blockchain Engineer — L1, DeFi...

€450/day
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alessandro

Rust + blockchain engineer, specialized in post-quantum crypto and protocol architecture.
I single-handedly wrote CURS3D, a complete quantum-resistant Layer 1: 31,000 lines of Rust, 285 tests, dual VM (native Wasmer + revm/EVM-compatible MetaMask), BFT PoS consensus with evidence-based slashing, ML-DSA-87 signatures (FIPS-204, NIST level 5), write-capable WASM browser wallet, 5 validators live on 4 clouds (Oracle ARM, IONOS, Hostinger). Hot-swap deploy pattern, height-gated hardforks, Prometheus monitoring, encrypted restic backups.
This is proof that I can design, code, deploy, and operate a crypto protocol end-to-end — solo.
What I do for you
Solidity smart contracts: ERC-20/721/1155, DeFi, governance, vesting, escrow
On-chain Rust programs: Solana, Substrate, custom modules
Solidity + Rust smart contract audits, crypto-critical reviews
Protocol architecture: L1, L2, AMM, lending, oracle, bridge
Full-stack dApp: Solidity + Next.js + TypeScript + wagmi/viem/ethers
MetaMask, WalletConnect, RainbowKit integration
Coordination of hardforks / deployed contract migrations
Code review for subcontracting audit firms
How I work
Direct and frequent communication (Slack/TG/Discord). Reviewable code: small and focused PRs, systematic tests, clean clippy/fmt, green CI. Technical documentation delivered with the code. Available 20-30h/week, Europe time zone. Bilingual FR/EN.
For whom
French / EU Web3 startups needing a part-time senior dev
Non-tech solo founders looking for an interim CTO for the crypto part
Audit firms subcontracting Solidity / Rust
DeFi / NFT / L1 projects needing a dev capable of taking over a complex crypto codebase in a few days
To get started
30 minutes of free consultation. You describe your need, I honestly tell you if I'm the right dev for it, within what timeframe and budget. No bullshit, no marketing.
  • French

    Native or bilingual

  • English

    Fluent

  • Italian

    Fluent

  • Russian

    Basic

Remote only
Primarily works remotely

Experience

  • Alertis
    Web Developer / SEO / Google My Business
    CONSULTING AND AUDITS
    May 2024 - September 2025 (1 year and 4 months)
    Chassieu, France
    Web developer and SEO consultant at Alertis Formation, I am responsible for optimizing the organization's online visibility across all strategic digital channels.
    My work is based on three complementary axes:

    Web Development:

    Creation, redesign, and maintenance of Alertis's showcase website.
    Integration of dynamic modules (registration forms, interactive maps, etc.).
    Technical optimization (performance, accessibility, responsive design).
    SEO (Search Engine Optimization):

    Comprehensive SEO audit of the site and existing content.
    Writing and structuring pages optimized for natural referencing.
    Monitoring positioning on search engines (Google, Bing).
    Google My Business:

    Optimization of the business listing (photos, hours, services, categories).
    Management of customer reviews (moderation, personalized responses).
    Regular posting to improve local visibility.
    I thus contribute to strengthening Alertis Formation's digital brand awareness, attracting new clients, and highlighting the security, first aid, and prevention training offered by the organization.
    Front-End Development SEO Google My Business PHP Training
  • E.Leclerc
    Shelf Stocker
    RETAIL (SMALL BUSINESS)
    September 2023 - Today (2 years and 9 months)
    Gleizé, France
    Goods Reception and Storage:

    Receiving delivered goods and verifying their conformity with delivery notes.
    Organizing product storage in compliance with stock rotation rules.
    Maintaining cleanliness and order in the storage area.
    Shelf Stocking:

    Arranging products on shelves according to defined layout guidelines.
    Clearly labeling items for easy customer identification.
    Ensuring correct price tags are present and promotions are highlighted as needed.
    Stock Management:

    Monitoring stock levels and reporting replenishment needs.
    Participating in periodic inventory counts to ensure stock accuracy.

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Education

  • Master of Cybersecurity
    Guardia Cybersecurity School
    Mon parcours académique est centré sur la cybersécurité, avec une spécialisation en développement. Ce programme combine une solide compréhension des principes fondamentaux de la cybersécurité avec des compétences pratiques dans le domaine du développement informatique. Cursus et Modules Principaux : Fondamentaux de la Cybersécurité : Acquisition des connaissances théoriques sur les menaces informatiques, la cryptographie, et les techniques de défense. Étude des normes de sécurité et des meilleures pratiques en matière de protection des systèmes d'information. Programmation et Développement : Maîtrise des langages de programmation courants tels que Python, Java, et C++. Application des principes du développement sécurisé pour créer des applications résistantes aux attaques. Sécurité des Applications Web : Apprentissage des vulnérabilités courantes dans les applications web et mise en œuvre de contre-mesures. Développement d'applications web sécurisées en utilisant des frameworks modernes. Audit et Test de Sécurité : Utilisation d'outils d'audit et de test de sécurité pour évaluer la robustesse des systèmes. Participation à des simulations d'attaques et à des exercices de réponse aux incidents. Projets Pratiques : Au cours de mon programme d'études, j'ai eu l'opportunité de participer à des projets pratiques, tels que la conception d'une application sécurisée, la réalisation d'audits de sécurité, et la résolution de défis liés à la cybersécurité. Ces projets ont renforcé mes compétences pratiques et ma capacité à appliquer les concepts théoriques dans des scénarios réels.

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