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Zaïd Alhadad

Senior Tech Lead

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Zaïd Alhadad
33 years old
Driving License
Vern-sur-seiche (35770) France
Contact me
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.
Resume created on DoYouBuzz
Experiences

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

  • 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

  • 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

  • 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

  • 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

  • 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

  • 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
  • Designed and built a graphical, user-friendly chatbot creation tool.
  • Tech stack: Python, Angular 5, Node.js.
Detailed Description
  • Developed solid expertise in natural language processing concepts.
  • Worked autonomously within a multidisciplinary team of engineers, linguists, and researchers.
  • 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.
Resume created on DoYouBuzz