Freelancer profile translated to English.
Back to original languageAbout Hélio
Fullstack Developer | Expert in Node.js, PHP & Shopify Ecosystem
I help companies create high-performing business tools and automate their digital ecosystems. My strength? Combining modern technical expertise (Node.js/TS) with a concrete understanding of business flows (E-commerce/Logistics).
🚀 MY EXPERTISE
1. Back-end & API Development (Node.js / TypeScript)I design robust, secure, and scalable architectures.
- Architecture:Design of high-performance REST APIs (Express).
- Security:Advanced rights management (RBAC), data validation.
- Reliability:Precise technical documentation (Swagger) and maintainable code.
- Implementation:Development of a complete HR & Assignments management module (MongoDB/Mongoose).
2. E-commerce & Automation (Shopify / PHP)Beyond the interface, I master the behind-the-scenes of online sales.
- Shopify:Development of custom themes (Liquid, JS) and front-end customization.
- Data Flows:Complex synchronization between CMS, ERP (Sage), and WMS.
- Automation:PHP scripts to manage inventory, orders, and logistics without manual intervention.
🛠 TECHNICAL STACK
- Languages:TypeScript, JavaScript (ES6+), Python, PHP, SQL.
- Back-end:Node.js, Express, Mongoose, Django.
- Data:MongoDB, MySQL, PostgreSQL, Firebase.
- DevOps:CI/CD, Docker.
- CMS / Front:Shopify (Liquid), HTML5, CSS3, Webflow, Wordpress.
- Mobile:Flutter, React Native
- Tools:Git, Postman, Jira, Swagger.
🤝 WHY ME?I am "solution" oriented. Whether it's to streamline your logistics or structure your internal tool, I deliver clean, documented, and future-proof code.
Let's discuss your needs!
French
Native or bilingual
Remote only
Primarily works remotely
Experience
- ALCMAFullstack DeveloperSOFTWARE PUBLISHINGOctober 2025 - December 2025 (2 months)Paris, FranceAs part of my assignment, I developed a complete Human Resources, Assignments, and Tasks Management module on a Node.js / TypeScript / MongoDB backend.My goal: to create a reliable, secure, and perfectly integrated system allowing administrators to manage activity and employees to access only what concerns them.🔧 What I accomplishedDesign of three key models: Personnel, Mission, Task (Mongoose).Implementation of advanced access control (ADMIN/USER) with automatic visibility filtering.Development of complete CRUD operations: creation, editing, deletion, availability updates, mission validation.Management of business features: mission priority, statuses, attachments, assignments, staff availability.Complete documentation via Swagger, with detailed schemas + endpoints.Clean and scalable integration into the existing architecture.🎯 ResultA structured, secure, and clear module, which has become an essential part of the internal system.It currently enables:✓ Better mission allocation✓ Precise tracking of assigned tasks✓ Centralized and reliable administration✓ User experience tailored to the role
- textissFullstack DeveloperE-COMMERCEJanuary 2023 - August 2025 (2 years and 7 months)Marseille, FranceDevelopment and automation of e-commerce sites and logistics flows for the group (Freegun, Capslab, Crazyboxer…).Shopify Web Integration: creation and customization of sections, product pages, and menus in HTML, CSS, Liquid, and JavaScript.ERP / marketplaces Automation: development of PHP scripts and integration of REST/SOAP APIs to synchronize inventory, orders, and deliveries between Sage, ChannelAdvisor, and the LNT WMS.Logistics Flow Optimization: automation of FTP transfers, management of complex shipping cases (shortages, partial shipments), and reliability of deliveries.Internal Tools: creation of PHP/MySQL interfaces for product management and data exchange supervision.Collaborative work within a team of 2 to 3 developers, with a focus on system quality, security, and performance.
Reviews
Recommendations
Be the first to recommend Hélio
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- BACHELOR 3 APPLICATION DEVELOPER DESIGNERMydigitalSchool2024BACHELOR 3 CONCEPTEUR DÉVELOPPEUR D'APPLICATION
- BTS WEB AND MOBILE WEB DEVELOPERWebforce32023BTS DÉVELOPPEUR WEB ET WEB MOBILE