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Arthur JeanAJ

Arthur Jean

Software Engineer | Rust, TypeScript, Next.js

€600/day
Nantes, FR
3-7 years

Average response time: 1 hour

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About Arthur

For six years, I have been developing web and native applications, backends, and systems integrating AI.

My main project is Paneflow, a native application written in Rust with GPUI. It brings together several code agents, their terminals, their branches, and their diffs in a single workspace.

I am also developing Pyxis, a native Rust code agent intended to integrate with Paneflow, and Distill, a TypeScript MCP server that reduces the context sent to LLMs and facilitates code analysis.

Main stack: Rust, GPUI, Zig, TypeScript, Next.js, React, PostgreSQL, Drizzle, TanStack Start, and Convex.

When I start a product or take over a codebase, I first address the issues that become costly once the software is launched: data model, boundaries between modules, protocols, error handling, concurrency, security, and deployment. Abstractions come when they solve a real problem. Tests, observability, CI, and distribution follow development from the start.

I use Codex CLI and Claude Code to have multiple agents work in parallel on exploration, implementation, testing, and review. I define the architecture, review changes, and validate what goes into production.

My best fit: an ambitious software product, a native application, a devtool, a backend to stabilize, or the integration of AI at the core of your business systems.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • StriveX
    Founder & Software Engineer | Agent Systems
    SOFTWARE PUBLISHING
    October 2025 - Today (10 months)
    Nantes, France
    I founded StriveX in 2025. Today, the structure supports Paneflow and Pyxis, two open-source Rust software projects focused on code agents.

    Paneflow is a native application in Rust and GPUI that groups multiple agents, their terminals, and their Git context within a single workspace. Pyxis is a native Rust code agent designed to integrate directly into this ecosystem.

    These software projects are developed local-first, publicly inspectable, and used in real development sessions. The terminal, local tools, and orchestration form the core of the work.

    In parallel, I work with companies on business software, technical products, native applications, devtools, local or self-hosted tools, and the integration of AI into their existing systems.

    For these missions, I handle architecture and implementation up to production deployment. I adapt to the existing stack or, when a product starts from scratch, I choose technologies based on its technical and business constraints. Rust and TypeScript remain my primary languages. I intervene mainly on topics requiring autonomy and genuine technical depth.
    Rust TypeScript Software Architecture Artificial Intelligence AI Agents
  • Avancial
    Tech Lead & Software Architect
    July 2024 - June 2025 (1 year)
    Nantes, France
    Sole professional developerat Avancial, I took on aTech Lead / CTOrole by structuring and industrializing the entire **web project lifecycle**.

    Architecture & Technical Stack
    Definition of the completetechnical architecture**: choice of stack (**Angular 19+Fastify 5**), implementation of a modular and **scalable Clean Architecture**. Design of a **custom templatebased onPrimeNGwith a **unified design system**, accelerating the startup of new projects.

    DevOps & Performance
    Automation of deploymenton production VMs, **server performance optimization**, fine-grained dependency management for **rapid and controlled delivery**.

    Impact**: Transition from a craft environment to an **industrialized infrastructureready to scale.
    Tech Lead Software Architecture Angular DevOps Performance Optimization
  • Avancial
    Full Stack & DevOps Developer
    July 2023 - June 2024 (11 months)
    Nantes, France
    Full Stack Developer Intern,I consolidated myweb developmentskills while upskilling inDevOpsandCI/CDpractices.

    DevOps & Infrastructure
    First experience withDockerandDocker Swarm**, setting up **CI/CD pipelineswithGitHub Actions**, analyzing **server performancevia logs.

    Quality & Testing
    Implementation ofunit testswithVitest/Jest**, awareness of best practices for **maintainableand **scalable code**.

    Organization
    Teamwork,Agilemethodology (**Scrum**), collaboration with business teams.
    Docker CI/CD Github Actions Jest Agile Project Management

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Education

  • RNCP Level 6 Title
    3WAcademy
    2024
    Développeur Full Stack & DevOps
  • RNCP Level 5 Title
    3WAcademy
    2023
    Développeur Full Stack

Skill set

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