Nicolas Barrier

Freelance full-stack development engineer. Design and development of web and mobile applications, redesign and maintenance of existing applications, performance optimization, technological migration, evolutionary maintenance. Agile project management, architecture, and infrastructure.

Stack: React, Vue.js, Laravel, Node.js, Ionic, PostgreSQL, MySQL, Docker, Linux

Full-stack development engineer at HELIOP, responsible for the development and maintenance of web and mobile applications.

Achievements:

Leading and developing the complete redesign of an ERP for a waste collection company (hazardous and non-hazardous):

modernization of the user interface, optimization of activity management workflows, and performance improvement.

Technologies: Laravel, PostgreSQL, Vue.js, Tailwind CSS, Docker, Bitbucket (CI/CD)

Migration and containerization of a SCOP management ERP:

transition from a monolithic architecture to a containerized infrastructure, deployment automation, and scalability improvement.

Technologies: Python, Vue.js, Docker, Gitlab (CI/CD)

Leading and developing an insurance rate calculation API: custom pricing engine, integration with client systems.

Technologies: Laravel, MySQL, Vue.js, Tailwind CSS

Development of a Node.js connector for automatic synchronization of invoices from PACE software to Pennylane:

accounting automation, elimination of manual entries.

Technologies: Node.js, REST API

Development of a web application for managing football tournaments: creation of competitions, team management, match scheduling, real-time rankings.

Technologies: Laravel, MySQL, Vue.js, Tailwind CSS

Full-stack development engineer at D-DALE, responsible for the development and maintenance of web and mobile applications.

Achievements:

Maintenance and evolution of the ERP for a company specializing in waste collection (hazardous and non-hazardous):

addition of business modules, performance optimization, bug fixes.

Technologies: C# 2.0, .NET Framework, SQL Server

Leading and developing an offline indoor navigation solution:

web management application and mobile app for connectionless navigation (pre-mapping, indoor/outdoor route calculation algorithm).

Technologies: C# .NET, Ionic, SQLite"

Development of business software for auctioneers:

management of assets and requisitions. Tracking of auction sales.

Technologies: C# .NET, SQL Server

Complete redesign of an Android mobile application for auctioneers:

interface modernization, UX and performance improvement.

Technologies: Ionic, Vue.js

Leading and developing a complete school management ERP for a higher education insurance school:

pedagogical tracking (grades, assignments, homework diary), multi-stakeholder management (students, teachers, tutors, companies).

Technologies: Laravel, MySQL

Maintenance and evolution of an SSO (Single Sign-On) platform for a higher education insurance school:

centralized authentication, access management.

Technologies: Laravel, MySQL

Development of a WordPress webhook for automatic lead synchronization to the Agate ERP and Oscar CRM:

automation of the sales process, reduction of processing time.

Technologies: WordPress, REST API

Leading and developing an e-learning platform dedicated to English language learning:

interactive learning paths, progress tracking, evaluation system.

Technologies: Laravel, MySQL, Bootstrap