Freelancer profile translated to English.
Back to original languageAbout Omar
Looking to make your PHP/Symfony application more reliable, faster, or to help it grow?
I am a PHP/Symfony Tech Lead, **Symfony 8 certified**, with 6 years of experience on high-traffic platforms (up to 40 million visits per year). I help you design robust REST APIs, optimize your performance (PostgreSQL SQL, Redis cache, RabbitMQ messaging), modernize your legacy systems, implement a solid quality chain (testing, code reviews, CI/CD), and integrate digital identity components (OAuth 2.0, OpenID Connect, FranceConnect).
My differentiator:a rare profile combining official vendor certification (Symfony 8 Advanced), confirmed Tech Lead experience, expertise on sensitive topics (identity, security, ANSSI/GDPR compliance), and the ability to upskill a team (mentoring, code reviews, design patterns).
Typical mission types:REST API design and redesign, Symfony/PHP version migration (legacy → modern), performance audits and optimization, team technical mentoring, integration of secure third-party services (FranceConnect, payment, electronic signature).
French
Native or bilingual
English
Conversational
Can work on-site
Paris (up to 50km)
Experience
- IDOINE ConseilTECH LEAD SYMFONYCONSULTING AND AUDITSJune 2024 - November 2025 (1 year and 5 months)Paris, France
Leadership
- Direction:Technical lead on emploi-territorial.fr (300,000 accounts, 40M visits/year): architecture choices, technological trade-offs, technical debt supervision.- Modernization:Led the major version upgrade to Symfony 7 and PHP 8.3.- Management:Team mentoring, code review facilitation, best practice dissemination (Clean Code, SOLID, PSR).Architecture & Development
- Architecture:Design of complex business modules, refactoring towards maintainable architecture, application of SOLID principles and Design Patterns.- REST API:Development of Swagger / OpenAPI documented REST APIs for internal consumers and partner platforms.- Third-party integrations:FranceConnect / OpenID Connect, SIRENE API, Public Employment Portal, CNFPT.Performance, Cache & Scaling
- SQL Performance:Optimization of native PostgreSQL 14 SQL queries to handle 700,000 annual applications.- Application Cache:Redis cache (expensive results, sessions, targeted invalidation) to ensure reliable scaling.- Asynchronous Messaging:RabbitMQ for task queues and mass sending (12M emails/year).Quality & Testing
- Automated Tests:PHPUnit 12 strategy (unit, functional, integration).- Static Analysis:SonarQube, systematic code reviews, OWASP ASVS alignment.Security & Digital Identity
- Authentication (OAuth 2 / OIDC):Integration of FranceConnect flows: redirects, callbacks, scopes, claims, token validation, session management, and auth errors.- Compliance:Sensitive SSI application (ANSSI Sensitive Level alignment), GDPR, regular security audits.Technologies: PHP 8.3, Symfony 7, API Platform, Doctrine ORM, PostgreSQL 14, Redis, RabbitMQ, OpenID Connect, OAuth 2.0, Docker, PHPUnit, SonarQube, GitLab CI/CD, Swagger. - MFTIFULL STACK DEVELOPERDIGITAL AND ITApril 2023 - June 2024 (1 year and 2 months)Paris, France
Design of internal management tools (API-First Approach)
- Architecture:Development of a business application centralizing HR and operational processes (timesheets, absences, staffing).- API Ecosystem:Implementation of API Platform for standardized exposure of business resources (API-First Approach).- API Security (OAuth 2 / JWT):Design and implementation of an OAuth 2 / JWT authentication mechanism with Refresh Token management (rotation, expiration, signing, client-side storage) to secure exchanges between Symfony backend and Vue.js 3 SPA.- Front-end:Creation of responsive interfaces with Vue.js 3 (Composition API) consuming secured APIs.- Back-end:Automation of reports and dynamic synchronization of timesheet modules with the billing system via Symfony 5.4.Technologies: PHP 7.4 (Symfony 5.4), API Platform, OAuth 2 / JWT / Refresh Tokens, Vue.js 3, Doctrine ORM, PostgreSQL, MariaDB, AWS. - IDOINE ConseilSYMFONY DEVELOPERCONSULTING AND AUDITSJanuary 2022 - March 2023 (1 year and 2 months)Paris, France
Application Migration & Symfony Expertise
- Major Migration:Active participation in the complex migration of the historical core (PHP 5 / PEAR) to a modern environment under PHP 7.4 and Symfony 5.4.- Redesign:Rewriting critical business modules (manager, applicant, departments) to integrate Symfony framework standards, application of SOLID principles and Design Patterns.- Development:Creation of new features and corrective maintenance within a team of 9, participation in code reviews and definition of best practices.Technologies: PHP 7.4, Symfony 5.4, Doctrine ORM, PostgreSQL, jQuery, Bootstrap.
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Education
- Master's in Software Engineering (BAC+5)University of Béjaïa2019Master en Génie logiciel (BAC+5)
Certifications
- AWS Certified Cloud PractitionerAmazon2023