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Freelance

SaaS JavaScript Integrator — Electronic Invoicing (IT) / Freelance/ 2 days ago

Coexya
Attractive
Application ends: 2026-06-12

Quick Summary

This freelance role focuses on personalizing and configuring a SaaS platform for electronic invoicing using JavaScript scripting. Candidates need two to three years of experience in solution integration or application configuration and the ability to translate client scoping documents into functional management rules. The work involves high-volume project processing, treatment validation, and corrective maintenance rather than pure application development.

We are looking for a software solution integrator to work on a SaaS platform dedicated to document flow personalization, primarily within the framework of client projects related to outgoing electronic invoicing.

The mission involves processing a high volume of small client projects. Based on scoping documents, you will need to understand the expressed needs, perform the necessary configurations on the platform, adapt certain treatments in standard JavaScript, and then verify the quality and compliance of the deliverables.

The position is more oriented towards integration, configuration, and projects than pure application development.

Expected Role:

  • Analyze client scoping documents to identify functional needs, management rules, and configuration impacts.
  • Perform SaaS platform personalization in JavaScript on standard developments.
  • Work primarily on outgoing electronic invoicing flows.
  • Perform development tests, check treatment reliability, and correct anomalies.
  • Contribute to the corrective and evolutionary maintenance of implemented solutions.
  • Assist deployment teams during commissioning or client adjustment phases.
  • Follow, control, and communicate regularly on the progress of activities.

Candidate Profile:

Integrator, technical consultant, or application configuration manager profile with at least 2 to 3 years of experience.

Expected Skills:

  • Experience in SaaS solution integration, application configuration, or platform personalization.
  • Mastery of JavaScript scripting in a configuration or treatment adaptation context.
  • Ability to understand a scoping document and translate client needs into reliable configurations.
  • Rigor in testing, treatment validation, and anomaly tracking.
  • Autonomy, curiosity, analytical capacity, and clear communication with project teams.
  • Minimum Bac+2 level.

Appreciated: knowledge of electronic invoicing, RFE, EDI, outgoing flows, Java, PHP, or SQL.

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Coexya

Coexya

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    Lille, Hauts-de-France
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