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Lassana DansokoLD

Lassana Dansoko

Symfony 6 Developer | REST API | PHP 8 | Docker

€480/day
Rosny-sous-Bois, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lassana

PHP/Symfony developer with over 7 years of professional experience, including 5 years on a multi-tenant enterprise B2B platform.

I develop and maintain complex backend features: third-party API integrations, messaging, access control, multi-channel notifications. Notably, I integrated the OpenAI API into a production messaging system.

In parallel, I developed Khamareo from scratch, an e-commerce platform in production (Symfony 6.4, React/TypeScript, PostgreSQL) with Colissimo, Mondial Relay, and Stripe integrations.

Immediately available for any mission in the Île-de-France region or remote.
  • English

    Fluent

  • Spanish

    Basic

  • French

    Native or bilingual

Can work on-site
Rosny-sous-Bois (up to 50km)

Experience

  • Export-entreprises
    PHP Symfony Developer
    BANKING AND INSURANCE
    March 2020 - June 2025 (5 years and 3 months)
    Paris, France
    For 5 years, I contributed to the development of an international business-to-business matchmaking platform, deployed for 14 major banking clients within a multi-tenant architecture.

    My main scope: the inter-company messaging module (threads, attachments, access control via Symfony Voters), integration of the OpenAI API for automatic message generation and translation, and the buyer/seller matching module via a third-party algorithmic API.

    I also developed the commercial opportunities CRUD with SFTP upload, implemented multi-channel mobile notifications (SMS, WhatsApp, Telegram, WeChat via MessageBird), and contributed to page security via CSP.

    Technical environment: Symfony 4, MySQL, Redis, ElasticSearch, Docker, GitLab, with interventions on Symfony 5 and 6 APIs.
    PHP Symfony Developer Docker MySQL PHP Symfony REST API
  • Frequent Flyer Travel
    PHP Laravel Developer — ScrumMaster
    TRAVEL AND TOURISM
    July 2018 - December 2018 (6 months)
    Paris, France
    Development of an employee tracking module for the intranet portal of a business travel agency. Mission carried out within an Agile team of 3 developers, with a ScrumMaster role alongside development: leading dailies, sprint reviews, retrospectives, and backlog management.

    Technical contribution: development of HR module features, priority management, participation in integration tests and production deployment.

    Stack: Laravel 5, Git, Jira, PhpStorm, Docker.
    Laravel 5 Agile Git MySQL Vue.js
  • SoftbankRobotics
    Software Engineer
    TECH
    November 2017 - April 2018 (6 months)
    Paris, France
    Participation in the creation of a micro Web Service for secure remote authentication for SoftBank Robotics client robots. Mission carried out within a team of 7 people (5 developers, 1 Scrum Master, 1 Product Owner).

    Contribution: development of REST APIs in Python/Django comprising the micro-service, writing unit tests, co-leading sprint reviews, and participating in production deployments.

    Stack: Python, Django, Docker, Git, Jenkins.
    Git API Docker Django Python

Recommendations

FU
GB
Former user and 1 other person have recommended Lassana

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Education

  • DUT Informatique
    Université Paris XIII
    2010
  • Master in apprenticeship - expert in Applied Computer Engineering – BAC+5
    HITEMA
    2014

Skill set

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