You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Eric CastelEC

Eric Castel

Custom business applications and automation

€550/day
Toulouse, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Eric

Are you wasting time with ill-fitting tools or manual processes?

I help companies simplify their organization and automate their business through custom business applications.

Specifically, I can assist you with:

• Developing business applications (web / SaaS)
• Replacing or improving existing tools (Excel, internal tools…)
• Automating processes
• Creating dashboards and tracking tools
• Structuring and ensuring the reliability of your system

Goals:

• Save time
• Reduce errors
• Improve visibility into your business

With 7 years of experience as a developer, I have worked on complete projects from design to production, focusing on reliability, maintainability, security, and ease of use.

If you have a specific need or a problem to solve, I can offer you a simple and adapted solution.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Supaleads.io
    Development of analysis and automation tools for business applications
    DIGITAL AND IT
    February 2025 - March 2025 (1 month)
    Montpellier, France
    Design and development of tools aimed at improving the reliability and efficiency of applications.

    • development of an analysis tool to detect and correct application fragility points
    • implementation of an automated deployment system to secure production releases
    • creation of a tool to assist in managing social media presence (preparation, planning, and optimization of interactions)
    • overall improvement of application quality, stability, and maintainability

    Result: +35% reliability, maintainability, and deployment fluidity
    JavaScript Node.js Automation Business Applications SaaS Development
  • Cast Software
    Development of software quality tools and process automation
    SOFTWARE PUBLISHING
    December 2022 - August 2024 (1 year and 8 months)
    Paris, France
    Development and improvement of tools within a software vendor specializing in code analysis and application quality, in an environment demanding high reliability and security.

    • design and implementation of an automated testing suite (functional and load)
    • optimization of validation processes to accelerate production releases
    • development of a data export module to facilitate the use, sharing, and integration of business information
    • improvement of application stability and maintainability

    Result:

    • validation times divided by 7
    • significant improvement in application quality and reliability
    Automated Testing Software Quality Business Applications Java React.js
  • SaaS Impression 3D
    Design and development of a business SaaS platform
    SOFTWARE PUBLISHING
    June 2021 - Today (5 years and 2 months)
    Montpellier, France
    Complete design and development of a SaaS platform intended to connect users with service providers, with a product-oriented and user-friendly approach.

    • full-stack development of the application (frontend, backend, database)
    • design of core functionalities and product architecture
    • implementation of a user and interaction management system
    • continuous product improvement based on needs and feedback

    Result:

    • creation of a functional and scalable product
    • establishment of a reliable technical foundation to support growth
    SaaS Development Business Applications JavaScript Node.js React.js

Recommendations

Be the first to recommend Eric

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master 1 ERIS (Level 6)
    3IL Ingénieurs / ORT Toulouse
    2026
    Expertise réseau infrastructure et sécurité
  • Application Developer (Level 6) Certification
    AFPA Saint Jean De Vedas
    2021
    Certification Concepteur Développeur d'Applications (Niveau 6)

Categories