Youssef El Gamrani

Senior Backend & Cloud Engineer with strong expertise in designing and building complex B2B applications, especially in CRM and notification systems. I contributed to strategic projects involving HubSpot integration and the development of a centralized communication platform, covering requirements gathering, cloud architecture design, and full-stack implementation.

My role spanned the entire project lifecycle:

• Analysis & Design: requirements gathering, solution design, and writing technical specifications.

• Architecture & Development: designing scalable AWS cloud infrastructures (ECS, EKS, Lambda, VPC, API Gateway, DynamoDB, Aurora, S3), backend development with Java (11/17/21, Spring), NodeJS/ExpressJS, and frontend with Angular, Vue.js, React.

• Messaging & Data: building Kafka producers and consumers, RabbitMQ integration, close collaboration with data engineers on ingestion and transformation pipelines (Snowflake, PostgreSQL, Redis).

• Quality & Performance: implementing unit, integration, and functional tests (JUnit, Mockito, Karate, Playwright), performance testing with detailed result analysis, code reviews, continuous improvement, and incident troubleshooting.

• DevOps & Automation: deploying across multiple environments (Feat, Sint, Demo, Prep, Prod) using Docker, Kubernetes, Terraform, CloudFormation, AWS CDK, with CI/CD pipelines (GitLab, Jenkins, Sonar).

Working in Agile (Scrum ceremonies), I also apply Software Craftsmanship principles such as TDD, Pair/Mob Programming, SOLID, clean code, and refactoring.

I bring a strong focus on quality, scalability, and reliability, with the ability to design robust cloud-native solutions and continuously optimize technical foundations to ensure long-term maintainability and performance.

I actively participated in the loyalty middleware program and the promotions management platform, while also supporting the migration of existing services to Java 21 and Spring Boot 3. Additionally, I contributed to the design and development of Easip, a new product designed to handle promotions at scale.

My responsibilities covered the full software development lifecycle:

• Analysis & Design: requirements gathering, architectural design, and writing technical specifications.

• Backend & API Development: building REST and SOAP APIs with Java/Spring, integrating messaging systems through Kafka and RabbitMQ.

• Frontend Development: designing and implementing user interfaces with Angular, Vue.js, and React.

• Messaging & Event-driven Systems: developing Kafka producers/consumers and event-driven integrations.

• Quality & Reliability: writing unit, container, and functional tests (JUnit, Mockito, Karate, Playwright), conducting performance testing with detailed result analysis, incident investigation, and code reviews.

• DevOps & Deployment: deployments across multiple environments (Feat, Sint, Demo, Prep, Prod) using Docker, Kubernetes, GitLab CI/CD, and Sonar, within a hybrid cloud environment (Azure, AWS, GCP).

• Collaboration & Agile: active participation in Agile Scrum ceremonies and Three Amigos sessions, ensuring alignment between business, development, and QA.

The technical stack included Java (8/17/21), Spring Boot 3, Spring Batch, Spring Cloud, Kafka, Oracle, PostgreSQL, Redis, Couchbase, Liquibase, with multi-cloud expertise across Azure (Blob, Functions, Cosmos DB), AWS (EKS, Lambda, Aurora, DynamoDB, Glue, Step Functions, S3), and GCP (BigQuery).

Throughout this mission, I applied Software Craftsmanship principles (TDD, Pair/Mob Programming, SOLID, refactoring, clean code) to deliver maintainable, scalable, and high-performance systems that directly support Carrefour’s loyalty and promotions strategy in a highly competitive retail landscape.

I contributed to major digital banking initiatives at Société Générale, focusing on Trade Finance solutions for corporate clients. I participated in the implementation of an electronic banking platform dedicated to Trade Finance, and in the development of a web application enabling single sign-on (SSO) access for corporate clients to seamlessly use the bank’s digital services.

My responsibilities covered a wide scope across design, development, quality, and delivery:

• Analysis & Design: requirements gathering, design of secure and scalable APIs and system components.

• Backend Development: building REST and SOAP APIs with Java 8 and Spring, implementing microservice patterns with Eureka discovery, Zuul, Hystrix, and integrating authentication/authorization via Keycloak and Firebase.

• Frontend Development: contributing to user interfaces with Angular and TypeScript for client-facing features.

• Messaging & Data: integrating Kafka for event-driven communication and designing data flows with PostgreSQL, Redis, Liquibase, and Minio.

• Quality & Testing: writing and maintaining unit, integration, and functional tests (JUnit, Mockito, Cucumber, Wiremock), ensuring reliability and maintainability through code reviews and incident analysis.

• DevOps & Deployment: deploying services across Sandbox, Staging, Prep, and Production environments using Docker, Kubernetes, Jenkins, Sonar, and applying CI/CD best practices.

• Collaboration & Leadership: active involvement in Agile Scrum ceremonies (daily stand-ups, sprint planning, retrospectives, backlog refinement) and participation in the recruitment process to strengthen the engineering team.