Zaïd Alhadad
Senior Tech Lead
33 years old
Driving License
Vern-sur-seiche (35770) France
Professional Status
Freelancer
Open to opportunities
About Me
Senior Tech Lead specialized in online payments and fraud prevention, with strong experience in large-scale e-commerce platforms within the luxury sector. I currently support a leading French luxury brand by designing, securing, and evolving critical payment systems with a strong focus on reliability, scalability, and user experience.
My role combines hands-on technical expertise with leadership: driving architectural decisions, promoting engineering best practices, and guiding teams through complex delivery challenges. I work closely with product, security, and platform teams to deploy secure payment solutions and effective anti-fraud strategies that directly contribute to business performance.
Pragmatic and delivery-oriented, I value clean architecture, operational excellence, and team growth, and I am comfortable operating in high-stakes, highly regulated environments.
My role combines hands-on technical expertise with leadership: driving architectural decisions, promoting engineering best practices, and guiding teams through complex delivery challenges. I work closely with product, security, and platform teams to deploy secure payment solutions and effective anti-fraud strategies that directly contribute to business performance.
Pragmatic and delivery-oriented, I value clean architecture, operational excellence, and team growth, and I am comfortable operating in high-stakes, highly regulated environments.
Senior technical lead in online payments & fraud prevention for a French luxury e-commerce platform
Freelance
Since November 2024
- Delivered architectural leadership and ensured high reliability of payment systems.
- Led adoption of AWS, Angular, Terraform, and strong engineering standards
- Defined best practices in testing, CI/CD, DevOps and observability
- Ensured stability, monitoring, and robustness of payment and fraud modules
- Mentored developers on Angular, Node.js and modern backend patterns
- Introduced tooling to improve dev productivity and testing quality
- Optimized integration flows and deployed first CI pipelines
- Managed releases for payment & fraud components
- Participated in recruitment and technical interviews
- Migrated Lambda/SQS workloads to Kubernetes microservices (Node.js, Kafka)
- Designed and built applications with Angular & TypeScript
Tech stack: AWS · Node.js · Angular · TypeScript · Kafka · Kubernetes · Docker · GitLab CI · Jenkins · Bitbucket · Jira - Led adoption of AWS, Angular, Terraform, and strong engineering standards
Responsable technique
Capgemini
March 2021
to October 2024
Full-time
Rennes/Nantes
France
Technical lead for payment & fraud systems for a French luxury e-commerce platform.
Provided architectural guidance, operational excellence, and hands-on implementation across components.
- Championed AWS services (Lambda, IAM, SQS, DynamoDB) and Terraform
- Strengthened DevOps, automated pipelines, and testing culture
- Maintained platform availability and observability
- Mentored team members and fostered technical growth
- Standardized development workflows with tooling and CI/CD
- Led feature work with Angular and Node.js across platforms
- Engaged in recruitment and candidate assessments
Tech stack: AWS · Node.js · Angular · TypeScript · Kafka · Kubernetes · Docker · GitLab CI · Jenkins · Bitbucket · Jira- Championed AWS services (Lambda, IAM, SQS, DynamoDB) and Terraform
Software Engineer & DevOps
SCALIAN
October 2018
to March 2021
ORSEC / SYNERGI2 — French Ministry of Interior
Technical lead and core contributor on a national emergency response platform.
- Built a new application for France’s ORSEC emergency response plan
- Provided technical leadership, code reviews, and team guidance
- Drove architecture, tooling choices and best practices
- Participated actively in Agile ceremonies (planning, demos)
Tech stack: Node.js · Angular · Java Spring Boot · Jenkins · Docker- Built a new application for France’s ORSEC emergency response plan
Connected Footwear Platform – Senior Developer
- Built fall detection & emergency alert system (SMS, calls)
- Defined architecture, specs and key features
- Hardening and bug fixing after audit
Tech stack: Angular 10 · C# · Kafka · Docker · PostgreSQL- Built fall detection & emergency alert system (SMS, calls)
Collaborative R&D Project – Senior Developer
- Improved field technician workflows with environmental sensors- Designed architecture and implemented multiple use cases
Tech stack: Node.js · Node-RED · BLE · Java · Android · Docker
- Improved field technician workflows with environmental sensors- Designed architecture and implemented multiple use cases
Connected Medical Device Platform – Lead Developer
- Remote COPD patient monitoring & COVID crisis features
- Full stack design, development and E2E testing (Cypress)
- Engaged in Agile planning and AWS self-training
Tech stack: Angular 8 · TypeScript · Python · Docker · AWS (serverless) · Ionic · GitLab CI · BLE · IoT- Remote COPD patient monitoring & COVID crisis features
Electronic Document Management System – Senior Developer
- Front-end & back-end development, unit testing, bug fixes
- Task planning and Agile delivery
Tech stack: Angular 5 · Java · Spring Boot · LDAP · REST · Alfresco · Elasticsearch · Jenkins · Maven · Docker- Front-end & back-end development, unit testing, bug fixes
Software Engineer
Orange Labs
September 2015
to September 2018
Cooperative Education Work
Lannion
France
- Designed and built a graphical, user-friendly chatbot creation tool.
- Tech stack: Python, Angular 5, Node.js.
Systems and Network Administrator
CEDRICOM SAS
August 2014
to August 2015
Apprenticeship
Betton
France
- Supported and operated payment flow management solutions.
- Administered production networks and infrastructure (≈350 virtual machines).
- Automated deployment and operational tasks.
- Provided level-2 technical support to internal teams.
- Web
- Payment en ligne
- Micro services
- Kafka
- Réseaux
- Management de projet
- AWS cloud
- Gestion de Fraude
- K8S
- E-commerce
- Langage Naturelle
- Javascript / Typescript
- Terraform
- HTML/CSS
- Java
- Ansible
- Angular
- NodeJs
- Python
- C#
- Autonomie
- Agilité
Advanced algorithms and software design.
Delivery of multiple team-based and individual projects in both English and French.
Study of network architectures and associated security mechanisms.
Project management responsibilities, including the organization of the Brittany Robotics Competition.
Delivery of multiple team-based and individual projects in both English and French.
Study of network architectures and associated security mechanisms.
Project management responsibilities, including the organization of the Brittany Robotics Competition.
Introduction to deep learning and machine learning fundamentals.
Design, cabling, and configuration of corporate local area networks (LANs).
Strong hands-on experience with professional networking hardware (Cisco, HP, Dell).
Strong hands-on experience with professional networking hardware (Cisco, HP, Dell).
Languages
- Arabic
- French
- English
