Semmy G

Participation in the development of Synapse, an inter-service data exchange platform at Auchan, based on an event-driven architecture (pub/sub). Vue.js frontend development, JavaScript backend contribution, automation of new flow deployment via Terraform and GCP.

Achievements & Activities

• • Development of new features on the Vue.js / TypeScript frontend, with refactoring of JS APIs to TypeScript (strong typing, improved maintainability, reduced runtime bugs).

• • Correction of critical and non-critical bugs on the JavaScript frontend and backend; implementation of functional tests to ensure non-regression after each delivery.

• • Configuration and provisioning of cloud infrastructure on GCP via Terraform (Infrastructure as Code) creation of new deployment environments, cloud resource management, pipeline automation.

• • Writing technical documentation (architecture, user guides, onboarding) to facilitate adoption by teams and ensure the longevity of data flows.

• • Technical support to internal users: incident identification, log analysis, rapid resolution, and clear communication with stakeholders.

• • Active participation in Agile ceremonies (sprint planning, daily stand-up, retrospective, sprint review) using the Scrum method.

Development and maintenance of strategic APIs for Workday (HRIS) integration and identity management in an international multi-country context (7 BUs). Migration from a monolithic architecture to decoupled JavaScript microservices.

Achievements & Activities

• • Design and development of the Anti-Corruption Layer (ACL) API for Workday integration: JavaScript REST API ensuring business domain separation, HR data consistency, and independence from third-party systems.

• • Development and maintenance of the Legacy Integration Identity API: centralized management of employee access rights, authentication, authorization, and account provisioning across 7 countries.

• • Refactoring of a monolithic application to a JavaScript microservices architecture: decomposition into autonomous modules, decoupling of dependencies, improvement of scalability and maintainability.

• • Analysis and resolution of data quality issues: validation of incoming flows, integrity control, implementation of reliability and error handling rules.

• • Multi-BU deployment in 7 countries: management of configurations per environment, ensuring consistency, data security, and international regulatory compliance.

• • Writing comprehensive technical documentation: REST API specifications (OpenAPI/Swagger), data schemas, business processes, DevOps and CI/CD best practices.

• • Onboarding and upskilling of new JavaScript developers: technical support, knowledge transfer, regular code reviews.

• • Management of secrets and credentials via HashiCorp Vault (access security, secret rotation).

Keywords: JavaScript, REST API, microservices, Spring

Developer at Enedis, developing modules in Typescript with Angular and NestJS. Redesign and evolution of an existing application on a new stack.

Missions: