Freelancer profile translated to English.

Description

Cloud Engineer specializing in Kubernetes, GCP, and distributed systems, with over 15 years of experience in designing, developing, and operating high-load critical platforms.

Coming from a strong Java/Spring Boot backend background, I combine application expertise, cloud-native engineering, and SRE practices to design scalable, resilient, observable, and industrialized architectures.

Significant experience with GKE, Terraform, CI/CD, Kafka, observability, load testing, mTLS/JWT security, and performance optimization in production environments.

Certified Kubernetes CKAD/CKA, Terraform Associate, and AWS Solutions Architect Associate.

Languages

French
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Bouygues Telecom
Cloud Engineer / Kubernetes (GCP)
January 2024 - Today (2 years and 5 months)
— Design and implementation of a cloud-native architecture on Google Cloud Platform for the Backend-IAD project (high-load WebSocket servers).
— Creation and management of Dev, Staging, and Production environments on GCP.
— Deployment and operation of applications on Kubernetes with scalability management (autoscaling, load balancing).
— Implementation of Infrastructure as Code with Terraform for environment industrialization.
— Configuration of GCP components for service exposure: Load Balancer (Global TCP Proxy) and Network Endpoint Groups (NEG).
— Setup and operation of managed Kafka (cluster provisioning, topic management, security, and high availability).
— Setup of load testing campaigns with k6 (Kubernetes operator) to validate scaling and optimize performance.
— Setup of observability with Prometheus and Cloud Monitoring (GCP).
— Implementation of security mechanisms (Envoy, mTLS, JWT) in a distributed environment.
— Secure connection to databases via Cloud SQL Proxy.
— Driving scalability and performance optimization of distributed systems on Kubernetes and GCP.
— Administration and optimization of Kafka clusters (partitioning, high availability).
— Contribution to architectural choices and technical support for teams.
— Results:
— Significant improvement in platform scalability and resilience in production.
— Reduction of incidents related to scaling by optimizing Kubernetes and GCP configurations.
— Industrialization of environments and deployments via Terraform and CI/CD.
— Improved visibility and monitoring of distributed systems (Prometheus, GCP Monitoring).
Technologies: Google Cloud Platform (GCP), Kubernetes, Terraform, Docker, Kafka, Prometheus, Cloud Monitoring, k6, Envoy, mTLS, JWT, Cloud SQL Proxy, CI/CD.
Kubernetes Cloud GCP
SPB Group
Cloud Engineer / Kubernetes
June 2022 - December 2023 (1 year and 6 months)
— Deployment and operation of cloud-native applications on Kubernetes (OpenShift).
— Preparation and management of Kubernetes manifests (deployments, services, configmaps, secrets).
— Configuration and improvement of CI/CD pipelines to automate application deployments.
— Environment monitoring via ELK (Elasticsearch, Logstash, Kibana) and observability setup.
— Integration of OpenTelemetry for tracking application metrics and traces.
— Setup of alerting and monitoring mechanisms to ensure service availability.
— Monitoring and analysis of application response times in production.
— Analysis and resolution of level 3 incidents based on logs, metrics, and threads.
— Performance testing (JMeter) and application performance optimization.
— Identification of bottlenecks (JVM, SQL) and scalability improvement.
— Stabilization and continuous improvement of production environments.
— Results:
— Reduction of application response times by 20-30% after optimization.
— Significant decrease in critical production incidents.
— Improved deployment stability via CI/CD.
— Better visibility through observability (logs, metrics, traces).
Technologies: Kubernetes (OpenShift), Docker, ELK, OpenTelemetry, JMeter, AppDynamics, Java, CI/CD.
Kubernetes Openshit
RATP
Backend Developer / DevOps
January 2021 - June 2022 (1 year and 5 months)
— Involvement in the E-net project, a critical platform for operational activity planning and tracking.
— Development and evolution of backend services in Java / Spring Boot in a high availability context.
— Participation in production environment stabilization and application support.
— Analysis and resolution of incidents in conjunction with business and technical teams.
— Application and batch processing performance optimization.
— Industrialization of deployment processes through the setup and improvement of CI/CD pipelines (Jenkins, GitLab CI).
— Contribution to the continuous improvement of delivery and software quality practices.
— Participation in architectural choices and technical evolutions of the system.
Technologies: Java 11, Spring Boot, Hibernate, Spring Batch, Jenkins, GitLab CI/CD, PostgreSQL, SonarQube.
Gitlab CI/CD Java

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Kubernetes CKAD/CKA, Terraform Associate
Kubernetes CKAD/CKA, Terraform Associate
AWS Solutions Architect Associate.
AWS Solutions Architect Associate.

Check out Ahmed's education

Ahmed Zaoui

Cloud Engineer / Kubernetes (GCP)

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