Junior JavaScript Developer

About the role

Mosaic Conseil is seeking a Junior JavaScript Developer to join its remote team. You will work on a project for an Italian financial institution, translating complex financial artifacts into clean, functional code.

Key responsibilities

• Write and maintain JavaScript scripts that automate extraction and transformation of financial data from various files and ledgers.
• Build small internal tools and utilities to help the team audit and verify the integrity of financial artifacts.
• Convert complex logic from spreadsheets and paper documents into readable JavaScript code.
• Participate in the builder‑challenger process by providing technical evidence to support or refute financial assumptions.
• Document code with clear written arguments that explain the logic behind each script and function.
• Ensure data‑processing scripts are reliable and easily verifiable by other team members.

Required profile

• Entry‑level candidate with a solid foundation in JavaScript and Node.js.
• Comfortable working with data formats such as JSON, CSV, and XML.
• Strong written English skills for clear documentation.
• Interest in financial data and a methodical, fact‑oriented approach.

Required skills

• JavaScript (Node.js environment)
• JSON
• CSV
• XML

What we offer

• Fully remote work environment.
• Opportunity to contribute to a high‑impact financial reconstruction project.
• Collaborative team that values intellectual honesty and rigorous debate.