Racha An

Back-end Development:

• Development and maintenance of microservices in Java 21 with Spring Boot 3.x.

• Implementation of secure and documented REST APIs (Postman).

• Integration of asynchronous messaging with Kafka for business event management.

• Data access management with SQL Server and schema versioning via Liquibase.

• Development of batch processes with Spring Batch for database population and purging.

• Development and security of REST APIs, with interactive documentation via Swagger UI and testing via Postman.

• Use of vulnerability detection tools such as SonarQube to ensure secure applications.

• Use of Spring WebFlux to develop non-blocking reactive APIs (Mono/Flux), enabling efficient management of real-time data streams and improving microservice scalability and performance.

Front-end Development:

• Development of responsive and performant user interfaces with Angular 15/18, based on a modular architecture (standalone components, lazy loading) to optimize loading times and application maintainability.

• Advanced use of RxJS for asynchronous stream management, including Observables and Subjects.

• Integration of real-time streams on the Angular side via WebSockets/SSE connected to microservices powered by Apache Kafka, allowing instant display of business events (notifications, transaction updates).

• Design and integration of complex forms with Reactive Forms, including:

o Synchronous and asynchronous validation

Automation & DevOps:

• Setup and maintenance of CI/CD pipelines (Jenkins).

• Deployment of applications on AWS.

• Management of playbooks, inventories, and job execution via Ansible.

• Containerization of services with Docker.

• Management of packages and version artifacts through the Nexus tool.

Back-end Development:

• Development of new features in Java 11 with Spring Boot.

• Design and implementation of RESTful microservices.

• Management of inter-application exchanges via REST API.

• Development of critical business modules in Java 8 with Spring Boot, including:

• Hiring Management Module: implementation of services WorkflowEmbaucheService, WorkowflowModificationContractuellesService, WorkflowDépartService to automate hiring, departures, and contractual modifications.

• Batch Management Module: development of the module for managing absence, planning, and forced hours batches, notably TraitementBatchForcageHorraire and TraitementInterfacePlanningLSRH to track leave, RTT, and sick days with integration to payroll rules.

• Notification Management Module: setup of an asynchronous system based on Apache Kafka, with definition of topics, management of Spring Boot producers/consumers, message serialization (JSON/avro), configuration of application.yml and application.properties files.

Front-end Development:

• Development of user interfaces with Angular 15: components, services, routing, and modular structuring.

• Implementation of responsive and user experience (UX/UI) oriented designs.

• Setup of module Lazy Loading to optimize loading times and application performance.

• Development and management of Angular forms, data validation, and error handling.

• Fluid Front/Back integration via REST API to ensure functional consistency and data synchronization.

• Management of asynchronous flows with RxJS for batch processing completion notifications and application events.

Quality, Security & CI/CD:

• Correction of production anomalies and continuous performance improvement.

• Refactoring of legacy code to improve maintainability and robustness.

• Writing unit tests

Back-end development (Java / Spring Boot):

• Implementation of a User microservice in Java 21/ Spring Boot (REST, services, DTO, mapping).

• Development of a business aggregation service that automatically calculates:

o Global indicators (totals, ratios),

o Recent trend index over the last sessions,

o Risk/loyalty level according to business rules.

• Setup of a dedicated REST endpoint for the profile:

o /api/assure/me/profile returning an optimized DTO for the front,

o Profile refresh on the fly or via scheduled batch.

Automation, batch & scheduling:

• Development of a scheduled job (Spring scheduler) recalculating all insured profiles each night from history.

• Optimization of aggregations to limit production load (pagination, incremental processing).

Security & Authentication (Insurance – Sensitive IT):

• Integration of authentication via Keycloak (OpenID Connect) for internal users (managers, advisors).

• Setup of a Keycloak ID → insured/user internal ID mapping to expose secure endpoints.

• Role management (read-only, manager, administrator) and endpoint security by scopes/roles.

Front-end & UX (Angular):

• Development of an Insured Profile page in Angular displaying: key insured information, and performance indicators.

• Setup of a dedicated Angular service (AssureProfileService) consuming the API with Keycloak token propagation.

• Setup of Angular routing with lazy loading of feature modules to reduce initial bundle size and improve application performance.

DevOps, containerization & environments:

• Containerization of the microservice with Docker and environment configuration management (dev, staging, pre-prod).

• Integration into an existing CI/CD chain (Git, Jenkins/GitLab CI) for build, tests, and automatic deployment.

• Monitoring