Freelancer profile translated to English.
Back to original languageAbout Karim
Full Stack Software Engineer specializing in Java/Spring Boot and Angular, with solid experience in microservices design, distributed architectures, and CI/CD environments. I work on projects with high technical constraints around performance, security, and real-time data processing. Passionate about new technologies and generative AI.
French
Native or bilingual
Can work on-site
Paris (up to 50km)
Experience
- AXIONEJava / Angular DeveloperTELECOMMUNICATIONSAugust 2022 - Today (3 years and 10 months)
- Writing detailed technical specifications and modeling in Confluence based on functional requirements.
- Development of Charlie microservices in Java 17 with Spring Boot 3 and Spring Cloud.
- Development, corrective and evolutionary maintenance of GCBLO Web Services in Java 11 / Spring Boot 2.
- Design and implementation of the SCANN project based on Java 21, Spring Boot 3, and Angular 19.
- Administration and optimization of PostgreSQL: tuning, indexing, and query performance improvement.
- Implementation of persistence layers with JPA/Hibernate, QueryDSL, and Redis.
- Automated management of database schemas via Liquibase.
- Development of unit and integration tests with JUnit 5, Mockito, Spring Test, and Docker Test Containers.
- Documentation and automated generation of REST APIs with Swagger/OpenAPI and generation of clients/servers.
- Analysis and optimization of application performance: profiling, refactoring, and cache management.
- Supervision and monitoring of applications with Sentry, Kibana, ELK, Prometheus, Grafana, Control-M, and SonarQube.
- Strengthening application security: Keycloak, Kafka ACL, TLS/HTTPS, certificates, LDAP, and Vault.
- Configuration and secure automation of file transfers via MFT and Kafka Connect.
- Containerization of applications with Docker and automated deployment via GitLab CI/CD and Ansible.
- Performing systematic code reviews on GitLab through Merge Requests.
- Design, setup, and maintenance of CI/CD pipelines for continuous integration, testing, and deployment.
- Orchestration, scheduling, and deployment of applications in production and non-production environments.
- Using generative AI tools like Cursor to accelerate development, refactoring, and debugging.
- Experience with several generative AI models such as GPT and Claude.
- BnF (Bibliothèque nationale de France)Java / Angular DeveloperCULTUREJuly 2018 - July 2022 (4 years)
- Development and automation of batch processing with Spring Boot.
- Design and execution of unit tests and integration tests to ensure application quality and reliability.
- Ensuring compliance with technical standards, best practices, and the technology matrix defined by the development charter.
- Participation in application migration projects from Java 7 to Java 8 then Java 11.
- Optimization of user interface (UI) performance and batch processing to reduce execution times.
- BPCEJEE / GWT DeveloperBANKING AND INSURANCEJanuary 2017 - June 2018 (1 year and 5 months)
- Development of a calculation engine implementing IFRS 9 standard rules for credit risk identification and assessment.
- Design and development of UI interfaces for managing and entering business data.
- Writing documentation and technical specifications associated with the developments carried out.
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Education
- Management training for team leadersMB Alliance consulting and training firm.2015Formations au management pour team leader
- Professional Master's Degree M2Higher School of Technology and Informatics (ESTI)2012Master Professionnel M2