About Thierno
French
Native or bilingual
English
Basic
Experience
- in groupeSoftware Development Engineer ConsultantPUBLIC SECTORNovember 2025 - Today (7 months)Vélizy-Villacoublay, FranceAs part of an international project for the production of secure documents (passports, driver's licenses), I work on critical applications related to manufacturing tracking, packaging, and shipping.My main contributions:Migration and modernization of a front-end applicationComplete redesign of a legacy application (Angular 8 → Angular 21) with improvements in performance, maintainability, and user experience.Development of a strategic business applicationDesign and development of a management system for packaging and shipping produced documents, incorporating strong traceability and reliability constraints.Implementation of application securityImplementation of authentication via Keycloak (token, role, and session management), ensuring secure access to sensitive functionalities.Integration of industrial systems (hardware)Connection with Zebra terminals for document reading (passports, packages) and integration of thermal printers for shipping label printing.Industrialization and deploymentParticipation in the setup and execution of CI/CD pipelines (Jenkins, Ansible, Bitbucket), in collaboration with DevOps teams.International documentation and collaborationWriting technical documentation in English (Confluence) and working in a multi-team environment.👉 Critical environment with strong requirements in:data securityoperation traceabilityperformance and reliability👉 Added value: ability to work on complex systems combining modern front-end, secure back-end, and hardware integration.
- RATPDevelopment Engineer ConsultantTRANSPORTATIONJuly 2025 - October 2025 (3 months)Paris, FranceAs part of an assignment for the maintenance teams of RER lines A and B, I participated in the development of internal applications aimed at improving operational management and intervention tracking.My main contributions:Development of business applicationsDesign and development of Node.js tools (AdonisJS) to optimize maintenance processes and field activity tracking.Implementation of access securityImplementation of authentication via Okta, with session management and secure communication.User and rights managementImplementation of a role-based access control (RBAC) system linked to PostgreSQL and KeyDB (Redis cache).Backend design and data managementDatabase structuring and API development to ensure application consistency and performance.Technical documentationWriting documentation to facilitate maintenance and knowledge transfer.👉 Demanding business context with challenges in:reliability of operational toolsaccess securityperformance of applications used by field teams👉 Added value: ability to rapidly develop secure backend solutions tailored to business needs, in a constrained environment.
- La Carsat centre ouestFullstack Java & Angular DeveloperBANKING AND INSURANCESeptember 2021 - July 2025 (3 years and 10 months)Limoges, France🔹 CNAV / Assurance Retraite (high national traffic)Development of APIs and microservices in Spring BootImplementation of MFA authenticationMigration to Java 21Quality improvement (automated tests, coverage)CI/CD with Jenkins + quality with SonarQubeDevelopment of batch jobs (Spring Batch, Data Flow)Technical supervision of developers👉 Applications used on a large scale with performance and data security challenges
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Education
- Master 1 & 2Aden Formartion2019Master 1 & 2
- Computer Science DegreeUniversity of Caen - Sciences2019Licence informatique