Marouane Touzani· Tech Lead

Senior Full-Stack Engineer · Tech Lead · Paris, France

Marouane
Touzani

I design and ship production systems at enterprise scale — energy, pharma, retail, rail — and I run them at AI-assisted cadence.

10+Years in production
05Enterprise employers
5–9Engineers led
90%+AI-generated code shipped
3–4Deployments / week

Experience 2015 → present

Jun 2024 → Present
Paris

TotalEnergies TDF

Senior Engineer / Front-End Technical Lead

  • Designed and own the cloud-native AWS architecture (Fargate, Docker, NestJS) — technical standards and CI/CD for high-cadence deployments across multiple squads.
  • Led end-to-end delivery of a production Costing Tool for renewable energy teams, integrating AI-assisted workflows with Claude Code to accelerate feature delivery.
  • Defined a scalable React / TypeScript Design System adopted across squads, cutting UI development time.
  • Works hands-on with Product Owners and business stakeholders, converting costing workflows into high-impact production features in rapid iterations.
Jan 2023 → Jun 2024
Paris

Sanofi

Team Lead — Applied Data & AI Web Platform

  • Led a team of 5 engineers building a web platform combining Big Data and Machine Learning to power precision marketing in pharma.
  • Partnered with Data/ML teams in Spain to integrate predictive models and LLM-assisted workflows for marketing content and data exploration.
  • Owned code quality, performance and reliability in a regulated environment — systematic code review and a pair-programming culture.
  • Led the Design System migration and technical roadmaps across Angular and Node.js services for long-term UX consistency.
Sep 2020 → Dec 2023
Paris

Monoprix.fr

Lead Developer — Transactional Systems (OMS)

  • Created and led the Order Management System engineering team (6 engineers) through peak COVID-19 demand — high availability, multiple daily deployments.
  • Defined code-quality, reliability and performance standards; targeted optimizations cut latency and raised throughput under load.
  • Built event-driven microservices with Node.js, GraphQL, GCP and Kubernetes for transactional workloads at scale.
Feb 2017 → Aug 2020
Paris

SNCF Gares & Connexions

Lead Developer — Real-Time Passenger Information (EVA)

  • Led 9 developers improving real-time travel information reliability across stations nationwide, meeting 99th-percentile latency targets.
  • Designed offline-capable architectures with local servers to keep service continuity in degraded networks.
  • Ran CI/CD and multi-environment deployments on AWS and Kubernetes — observability and fault tolerance first.
Dec 2015 → Jan 2017
Lyon

Aurea.com

Front-End Developer

  • Built multi-language interfaces for a source-code analysis tool and an email marketing platform, with continuous deployment on AWS via Docker and Jenkins.

Projects selected work

AI-Native Built with Claude Code

career-ops

AI-powered job-search automation platform — pipeline tracking, offer evaluation, CV generation and automated portal scanning — written end-to-end with Claude Code.

~15K LOC 90%+ AI-generated 100% production-grade

Node.js · TypeScript · Playwright · Claude Code · YAML · HTML/CSS

View on GitHub →

Co-Founded EdTech

Learnadoo

Collaborative SaaS learning platform across web and mobile — product, brand and customer discovery from day one, pitched to educators and investors.

AngularJS · Angular Material · Symfony2 · REST APIs · MongoDB · Android

How I build →

Capabilities hands-on stack

AI & LLMs

Claude CodeAnthropic Claude Prompt engineeringAgent workflows Evaluation frameworks

Backend

Node.jsNestJSTypeScript RESTGraphQLMicroservices Event-driven systems

Frontend

ReactAngularTypeScript Design SystemsAccessibility

Cloud & DevOps

AWS · FargateStep Functions DynamoDBS3GCP KubernetesDockerCI/CD

Data

MongoDBPostgreSQLSnowflake RedisRabbitMQCloud Pub/Sub Elasticsearch

Leadership

Team leadership · 5–9Agile / Scrum Pair programmingCode review Technical roadmapsStakeholder collaboration
Languages Frenchnative Englishfluent Arabicnative

Education & Certification

2015

Engineering Degree — Diplôme d'Ingénieur

FSTG, Marrakech University

2012

Diploma of Technology — DUT

EST Fès

MongoDB University Certification

Database administration · 2015

Let's ship at enterprise pace together.

Open to senior full-stack and tech-lead roles in Paris or hybrid across Europe. I bring ten years of production systems and a daily AI-assisted delivery workflow.

Email me → LinkedIn Download CV
Emailtouzanimarouane@gmail.com
LinkedInin/marouane-touzani
LocationParis, France · CET