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Salah OualiSO

Salah Ouali

Fullstack JS/TS Developer | Node.js • React

€400/day
Metz, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Salah

Full-stack JavaScript / TypeScript developer with over 4 years of experience, I design and develop modern web, mobile, and SaaS applications, from idea to production.
My approach is quality, performance, and scalability oriented, with a solid product vision and real UI/UX sensitivity.

I work with a craft & impact logic: producing clear, maintainable, documented code, and a meaningful product.
I often act as a technical right-hand man to founders or freelance CTOs, capable of transforming a product vision into a concrete solution.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Nextone (Startup)
    CTO
    SOFTWARE PUBLISHING
    September 2024 - September 2025 (1 year)
    Metz, France
    Development of a digital solution for the restaurant industry, namely:

    POS
    Order terminal
    KDS
    Marketplace
    Printing service
    Payment service (POS terminal)
    NLP (Natural Language Processing) Service

    Technologies:

    VueJS - Php/Laravel
    NextJS
    NodeJS
    Docker
    ELK
    Kubernetes
    Next.js Node.js Kubernetes JavaScript
  • Redspher
    Backend Developer Typescript/Nodejs
    June 2022 - August 2024 (2 years and 2 months)
    Contern, Luxembourg
    System architecture design, feature programming, security management, and technical problem-solving. Development of a Node.js/TypeScript service/API using Fastify for the API, along with an FTP client and email for other communication channels, for EDI data exchange. Maintenance of other EDI services on Nodered (low-code) environments. Participation in the migration of the company's main API from Nodered to Node.js. Development of a serverless service in Lambda (AWS) connected to a DynamoDB database. Work is done following Agile methodologies, integrating a CI/CD pipeline. Technical stack:
    • Javascript/Typescript
    • Node
    • Github (CI/CD)
    • Jest
    • Nodered
    • AWS SQS
    • LDAP
    • NestJS
    • Fastify
    • AWS Lambda
  • Abylsen
    ERP Developer Consultant
    November 2021 - June 2022 (7 months)
    Metz, France
    Abylsen is a multi-specialist engineering consulting group and creator of ingenious solutions. Since 2005, the group has contributed to the innovation and performance of companies by providing the technology expertise they need.

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Education

  • IT Project Manager
    ESI Metz - School of Computer Science of Metz
    2021
    Responsable de projets informatiques
  • Professional Bachelor's Degree in Design and Integration of Web Applications and Services for Business, Programming / Computer Developer, General
    IUT Nancy Charlemagne
    2019
    Licence Professionel Conception-Intégration d'Applications et Services Web pour l'Entreprise , Programmation / développeur informatique, général

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