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Vincent SierotaVS

Vincent Sierota

Rust Software Engineer

€500/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Vincent

Senior Backend Developer | Rust • Systems & Security

15 years delivering enterprise solutions in the Microsoft ecosystem — now expanding into Rust for secure, high-performance backends.

Portfolio: Github: Linkedin:
I design and modernize:
• Distributed backends with Rust (Axum, SQLx) or .NET Core / C#
• Secure, highly available systems, applying cryptographic principles
• Clean, documented APIs with OpenAPI/Swagger and gRPC (Tonic)

Creator of Fearless in Rust, a YouTube channel dedicated to systems development in Rust, and author of Sealed in Rust, an introductory guide to applied cryptography.

Let's build something robust, efficient, and production-ready.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • VES Systems Ltd
    Rust Software Engineer
    August 2025 - Today (10 months)
    At VES Systems Ltd, I design and implement secure, high-performance systems in Rust — with a strong focus on correctness, reliability, and clean architecture.
    Key Work: Developing RustPulse, a real-time telemetry engine for distributed servers, built with Axum, Tonic, PostgreSQL, and Tracing to ensure observability and robustness.
    Areas of Specialization: Applied cryptography, distributed systems, and backend performance — pushing Rust into real-world, production-ready scenarios.
    Rust Axum tonic Sqlx Tracing
  • Dynamics 365
    Power Platform Developer
    March 2021 - Today (5 years and 3 months)
    France
    Streamlined financial workflows by integrating Dynamics 365 Finance with Salesforce, improving data synchronization speed by 30%. Proactively learned Power Platform, building automated solutions that enhanced team productivity.
  • Computerland
    Dynamics 365 & Azure Developer
    DIGITAL AND IT
    December 2019 - December 2020 (1 year)
    Computerland, Liege, Belgium
    Delivered a seamless integration between MES and Dynamics 365 using Azure Logic Apps and Functions, reducing processing errors by 20%.

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Education

  • CEFR English C1
    Busuu
    2024
  • Bachelor's Degree in Network & Telecommunications,
    University Institute of Technology (IUT) of Béthune
    2010
    Bachelor's Degree in Network & Telecommunications,

Skill set

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