Idriss Douelfiqar

Contributed to the design and implementation of a large-scale microservices ecosystem for enterprise solutions, ensuring scalability, security, and high availability. - API Development: Designed and developed secure REST APIs for multiple business microservices, delivering consistent and reusable service interfaces. - Interservice Communication: Implemented synchronous and event-driven communication (via Kafka) with strong error handling strategies to maintain reliability across distributed services. - SAP S/4HANA integration, consuming OData APIs with SAP Cloud SDK, using selection, filtering, pagination, and $expand to reduce round trips. - User Interface: Built and optimized interactive Angular front-end modules, focusing on performance, accessibility, and user experience. - Testing & Quality Assurance: Wrote unit and integration tests (JUnit) to improve code quality and maintainability, ensuring smooth delivery to production. - Documentation: Produced detailed technical documentation with Swagger and Confluence, enabling better collaboration across teams and faster onboarding of new developers. - Agile Collaboration: Worked closely with product owners, developers, and business stakeholders in agile ceremonies (sprint planning, reviews, retrospectives). - Architecture & Security: Applied multi-tenant architecture patterns to support multiple clients while ensuring data isolation and secure authentication with Keycloak. - Tech Stack: Java, Spring Boot, Keycloak, Kafka, OpenFeign, Angular, HTML5, CSS3, PostgreSQL, Docker, Maven, JUnit, Git, Bitbucket, Jira, Confluence, Microservices architecture, Multi-tenant systems.

I worked on automating the process of package delivery and validation for PowerCARD, reducing manual efforts and enhancing efficiency. The goal was to streamline the validation, merging, and deployment of PL/SQL packages by leveraging a serverless, scalable AWS-based solution. Key Contributions: - Automated package validation using AWS Lambda, reducing manual verification time by 80%. - Developed a smart merging system to consolidate packages efficiently while maintaining integrity. - Designed and implemented a SaaS platform on AWS to ensure high availability and scalability. - Integrated message queuing with Amazon SQS for seamless asynchronous package processing. - Developed a reporting module that automatically generates reports and stores them in Amazon S3. - Implemented monitoring & logging with Amazon CloudWatch for real-time insights and troubleshooting. - Worked with ECS Fargate to manage backend processing efficiently while minimizing infrastructure overhead. This project significantly improved the reliability and speed of package deployments, reduced errors, and enhanced collaboration across teams.

Worked on Hire3, a platform designed to connect job seekers, recruiters, and freelancers, streamlining the recruitment process with innovative tools and an intuitive interface. Contributed to the development and enhancement of key modules to ensure secure and efficient user management. Key achievements: - Developed the User Management Module using React for the front-end and Spring Boot for the back-end. - Managed inter-service communication through OpenFeign and Resilient4j, enhancing the microservices architecture for scalability and resilience. - Collaborated closely with the development team in an Agile/Scrum environment, actively participating in sprints and daily stand-ups. - Authored comprehensive technical documentation, facilitating maintenance and knowledge transfer within the team. - Optimized module performance, enhancing response times and improving overall user experience. - Resolved complex technical issues and continuously improved code quality to ensure platform stability and reliability.

Developed a comprehensive e-commerce website, QuickBuy, from conception to deployment, enhancing online shopping experiences through a robust and user-friendly platform. Leveraged modern technologies to ensure seamless integration, scalability, and optimal performance. - Developed the E-commerce Platform using Spring Boot for the back-end and Angular for the front-end. - Integrated the MySQL database, managing data for products, orders, and user accounts. - Created intuitive user interfaces to enhance user experience and streamline the shopping process. - Utilized Docker for containerization, facilitating consistent deployment across different environments. - Collaborated with the development team in an Agile/Scrum environment, participating in sprint planning, daily stand-ups