Freelancer profile translated to English.
Back to original languageAbout Mederick
Product & Software Engineer, PSPO certified, with a strong technical background (Symfony, React, Docker, AI) serving the product and business value.
I work on the entire product lifecycle: requirements gathering, functional scoping, technical design, development, automation, and AI integration.
My approach combines product vision, architect rigor, and delivery efficiency to deliver robust, high-performing, and value-oriented SaaS products.
Stack: Symfony 7, PHP 8, React.js, Docker, REST API, n8n, AI / LLM.
Approach: agile, value and quality driven.
French
Native or bilingual
English
Basic
Remote only
Primarily works remotely
Experience
- SerenityProduct Tech Owner & Software Architect – PHP / Symfony / React / AIE-COMMERCEMay 2024 - October 2025 (1 year and 5 months)Paris, FranceProduct (Management & Agile)- Roadmap & prioritization: business needs scoping, breakdown into scopes, value/effort trade-offs.- Jira Backlog: clear user stories, acceptance criteria, sprint / demo / release flow.- Agile transparency: rituals (planning, daily, review, retro) and visible tracking for stakeholders.- UI time-to-market: front-end switch to Bolt (React) for rapid delivery of demo screens.- Automation as a product promise: “continuously updated catalogs” via scheduled orchestrations.- Serena AI (LLM): design of internal AI (recategorization, enrichment, multilingual reformatting).- Demonstrations & investors: preparation of materials, product story, live presentations.Software (Architecture)- Microservices architecture (Docker).- Strict REST API: clean contracts, JWT, roles/permissions (Symfony 7 attributes).- Observability: dedicated monitoring service, structured logs, flow traceability.- CI/CD quality: PHPStan, PHPUnit, PHP-CS-Fixer; Git conventions, PR review.- PHP 8 / Symfony 7 development: creation and optimization of complex features (product catalogs, orders, marketplaces, stock).- LLMS Integration: Mistral AI, Groq, OpenAI- Frontend React / Twig: interface integration, API communication, client-side business logic.- Orchestration: Dockerized n8n (supplier imports, price/stock sync, order sending).- Tooling: Postman organized by entity, REST/PSR standards, isolated dev/staging/prod environments.- Data: Doctrine modeling, consistent relationships, performant pagination/sorting/filtering.Key Impacts- Transition from mockup to an operational and demonstrable SaaS.- Automation of critical operations (less manual work, more reliability).- Business-tech alignment: a readable delivery cadence driven by value.Stack: Symfony 7, React (Bolt), Docker, REST API (JWT), n8n, Mistral/OpenAI, Jira, Postman, PHPStan, PHPUnit, PHP-CS-Fixer.
- TiimeProduct & Software Engineer (Agile Collaboration) – PHP / Symfony / ReactBANKING AND INSURANCEMay 2023 - May 2024 (1 year)Paris, FranceProduct (Agile & Collaboration)- Active participation in Scrum rituals: daily scrum, sprint planning, review, and retrospectives.- Use of Jira, Miro, and Kanban tools for planning, prioritization, and task tracking.- Writing business and technical specifications; direct collaboration with the PO and finance/accounting teams.- Contribution to the Definition of Done and continuous improvement of team practices.- Effort estimation and participation in backlog prioritization based on product value.Software (Fullstack & Quality)- PHP 8 / Symfony / React development: creation and optimization of new SaaS features.- Unit testing and participation in collaborative code reviews.- Design and documentation of reliable and maintainable REST APIs.- Work in an industrialized Docker / GitLab CI/CD environment.- Quality monitoring: linting, PSR standards, technical documentation, and automated pipeline.Stack: PHP 8, Symfony 6/7, React.js, Docker, GitLab CI/CD, REST API, PHPUnit, Jira, Miro, Kanban.
- MômjiProduct & Software Engineer (Agile Delivery) – PHP / Symfony / ReactDecember 2021 - May 2023 (1 year and 5 months)Paris, FranceProduct (Coordination & Agile)- Participation in agile rituals: daily, sprint review, and retrospectives.- Writing functional and technical specifications based on business needs.- Administration and prioritization of the product backlog on Jira.- Close collaboration with marketing and operational teams to align the roadmap.- Contribution to the Definition of Done and monitoring of quality indicators.Software (Development & Cloud)- Development of business features in PHP 8 / Symfony and React.js.- Progressive migration of the IS to AWS: Amazon S3, optimization of storage and performance.- Improvement of document management and reduction of interface loading times.- Implementation of TDD, CI/CD, and containerization best practices via Docker.- Backend/frontend collaboration (Symfony ↔ React) and evolutionary maintenance of internal APIs.Stack: PHP 8, Symfony, React.js, Node.js, Docker, AWS (S3), TDD, CI/CD, Jira.
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Education
- Associate's Degree in Digital TechnologiesInstitut Poly-Informatique2019Développement Informatique, Systèmes & Réseaux
- Bachelor's/Master's in Web Application DevelopmentOPENCLASSROOMS2021PHP, Twig, Symfony, Wordpress, Back-End, Front-End
Certifications
- Professional Scrum Product OwnerScrum.org2025