🇬🇧 English🇫🇷 Français

Amine MNASSRI

Agentic Systems Engineer & Senior PHP/Symfony Developer

+16 yrs web dev exp. · +1 yr Agentic Systems & GenAI

Profile

Agentic Systems Engineer & Lead Developer with over 15 years of experience in web design and development. Currently a Senior PHP/Symfony Developer at TotalEnergies, I am now pivoting my expertise toward agentic systems engineering and generative AI. I design and deploy Machine Learning models and GenAI solutions in production, with a strong specialization in NLP and LLMs.

My AI stack includes Hugging Face Transformers, LangGraph, LlamaIndex, RAG architectures, fine-tuning (PEFT/LoRA), prompt engineering, vLLM, Ollama, the OpenAI API, and coding assistants Kimi and Qwen. I also maintain strong proficiency in PHP, Symfony, Laravel, React.js, Next.js, and AWS, while focusing on inference optimization, MLOps pipelines, and robust, high-performance, maintainable code.

Technical skills

AI / Agentic & LLMs

Hugging Face TransformersLangGraphLlamaIndexRAGFine-tuning PEFT/LoRAPrompt EngineeringvLLMOllamaOpenAI APIGitHub CopilotClaude CodeKimi CodeQwen

Backend

PHP 5/7/8Symfony 2→7Laravel 8→11Node.jsAPI PlatformREST / SOAP APIsGraphQLPHPUnitCodeception

Frontend

React.js 16→19Next.js 15/16TypeScriptJavaScriptAngularVue.js / NuxtHTML5 / CSS3Jest

Data & MLOps

PostgreSQLMySQLMongoDBNeo4JElasticsearchDockerGitHub ActionsJenkinsCI/CDAWS

Cloud & DevOps

AWS ECS / ECRBeanstalkS3 / EC2 / VPC / IAMAzureDockerGrafanaKibanaNewRelicDynatrace

Methods & tools

Agile SCRUM / KanbanJira / ConfluenceServiceNowGit (GitLab/GitHub/Bitbucket)TDDPHPStanSonarQubeTypo3 / WordPress / Magento

Professional experience

Senior PHP/Symfony Developer — B2C Web Division

TotalEnergies via Symdrik
Paris, France
Sept. 2021 – Present

Development and maintenance of TotalEnergies' B2C web ecosystem: showcase and customer-area websites on Typo3, Laravel API, Symfony/React payment application, Kafka message manager with Symfony Messenger, and a native PHP/Symfony core business engine.

  • Design, estimation, and deployment of new B2C web projects in TMA/MCO (L3) mode.
  • CI/CD migration from Bitbucket/Azure to AWS + GitHub Actions.
  • Core architecture redesign; raised PHPStan to level 8 and test coverage from 0 to 88%.
  • Application upgrades: PHP 7→8, Symfony 4.4→6.4, React 16→18→19.
  • Initiation and integration of agentic AI solutions within the B2C web division: design of autonomous agent prototypes and RAG pipelines to improve access to business knowledge, experimentation with LangGraph and LlamaIndex for intelligent workflow orchestration, use of Kimi, Qwen and GitHub Copilot to accelerate development and code quality, and deployment of open-source models via Ollama/vLLM for local inference.
  • SCRUM sprint supervision, developer mentoring, and technology watch.
Environment: PHP 7/8, Symfony 2/3/4/5/6/7, Laravel 8/9/10/11, React 16/18/19, Next.js 15/16, Typo3 v9→v12, MySQL, MongoDB, Docker, PHPUnit, Jest, REST/SOAP, Elasticsearch, Kibana, GitHub Actions, AWS, Azure, Dynatrace, Jira, Confluence, Hugging Face Transformers, LangGraph, LlamaIndex, RAG, Ollama, vLLM, OpenAI API, GitHub Copilot, Kimi Code, Qwen.

Senior PHP/Symfony Developer — Audi Global System

Audi France via Micropole
Paris, France
Feb. 2020 – Aug. 2021

Development and migration of the Audi Global Contacts ecosystem: 10 APIs, admin dashboards, frontend apps, Node.js microservices, and gateways.

  • Designed and developed Lead Management, Lead Scoring, Audi OnDemand, DataPlug, IDKIT, Bloctel modules, and Salesforce migration.
  • Upgraded PHP 5.6→7.4 and Symfony 3.4→4.4.
  • API performance optimization and monitoring with NewRelic/Grafana/Kibana.
  • SCRUM sprint facilitation and team upskilling.
Environment: PHP 7, Symfony 3/4, API Platform, PostgreSQL, MongoDB, Node.js, Docker, Codeception, REST/SOAP, Camunda, Tyk, GitLab, Grafana, Elasticsearch, Kibana, NewRelic, Jira, Confluence.

Senior Developer — E-commerce Checkout Tunnel

Maisons du Monde
Paris, France
Mar. 2018 – Jan. 2020

Redesign and maintenance of the cart-delivery-payment-confirmation conversion tunnel across 11 Symfony applications and worker services.

  • Redesigned the tunnel around a new order API and a Nuxt/Vue.js frontend.
  • Integrated new carriers, payment methods, and UX optimizations.
  • Technical leadership, code review, and Symfony best practices.
Environment: PHP 7, Symfony 1/2/3/4, Vue.js, Nuxt, PostgreSQL, GraphQL, Traefik, Google Pub/Sub, Docker, PHPUnit, GitLab, Grafana, Rundeck, Kibana, NewRelic.

Lead Fullstack Developer

Groupe Revue Fiduciaire (Groupe LTO)
Paris, France
Mar. 2017 – Mar. 2018

Digitalization of collective bargaining agreements and legal codes through a Progressive Web App and a Symfony back office.

  • Architecture design, dev/prod server administration, Symfony backend and Polymer 2 frontend development.
  • Agile ceremonies facilitation and junior team upskilling.
Environment: PHP 7, Symfony 2/3, Node.js, MongoDB, Neo4j, Polymer 2, PWA, Firebase, PHPUnit, Jira.

Project Manager & Lead Fullstack Developer

Techno-Compétence
Tunisia / France
Jan. 2014 – Feb. 2017

Led and developed various web projects: real-estate CRM (KOMAXIS), B2B AdWords platform (Madison-Ads), and client websites on Symfony/WordPress.

  • Database design, REST APIs, business dashboards, and client websites.
  • Steering committees, client coaching, and workload estimation.
Environment: PHP 5, Symfony 2.8, MySQL, MongoDB, AngularJS, WordPress, jQuery, Bootstrap, REST APIs, PHPUnit, Apache.

Backend Developer

HappyStreet — Techno-Compétence
Tunisia
Aug. 2010 – Dec. 2013

Development of the e-commerce CMS and CRM backend for Tunisia's leading e-commerce platform.

  • CodeIgniter backend development, Bootstrap/jQuery frontend, payment gateway integration.
  • Server administration and client support.
Environment: PHP 5, CodeIgniter, MySQL, Apache, jQuery, Bootstrap, PHPUnit, XML.

Education, languages & interests

Education

2010 — Master's degree in Computer Science
Software Engineering

Languages

French: bilingual
English: technical / professional

Interests

AI & Agentic SystemsBlockchainMountain sportsVideo gamesTravel