Yassine E.

**Challenge**: Estimated savings of 7 billion euros over 15 years nationally. Avoiding loss of renewable electricity production**Impact**: 40+ NAZA automatons deployed and supervised, 100+ daily decision-making users, significant operational gains in time and network management costs

• Development of REST APIs (Java 17, Spring Boot, hexagonal architecture, DDD) and Angular 19 UIs
• Creation of KPI dashboards with AG Grid and D3.js for real-time visualization of automaton data
• Participation in Java 11 → 21 and Angular 12 → 19 version upgrades
• Front & back code coverage (TDD, BDD, e2e)
• Data storage and retrieval via PostgreSQL and Liquibase
• Code review and contribution to software quality via Sonar
• Setup and automation of Jenkins CI/CD pipelines for continuous deployment on various environments
• Docker containerization of micro-applications to facilitate their portability and deployment
• Storage and retrieval of telemetry and measurement data reported by NAZA automatons via Amazon S3 in Parquet format

**Environment**: Java 21, Spring Boot, Spring Cloud, Spring Security, Amazon S3, JUnit5, Mockito, Maven, REST, Swagger, Hazelcast, Elasticsearch, PostgreSQL, Hibernate, Liquibase, Angular 19, TypeScript, Karma, Jasmine, Docker, Kubernetes, Kibana, Jenkins, Sonar, Vault, GitLab, Jira, Confluence**Methodology**: Scrum / SAFe

• Design and development of REST APIs and SOAP Web Services (Java 11, Spring Boot, Swagger) and UIs in Angular 12
• Implementation of comprehensive test coverage: unit (TDD / JUnit5 / Mockito), integration, and automated tests
• Creation and management of Kafka topics for inter-service consumption and production
• Implementation of the Outbox design pattern to ensure reliable replay of Kafka streams in case of failure
• Design of inter-microservice stream orchestrations via Apache Camel
• Automation of Elasticsearch queries for indexing and searching business data
• Diagnosis and resolution of production anomalies via Kibana (analysis of Kubernetes pod logs)
• Utilization of DevOps tools set up by the infrastructure team: deployment and monitoring of micro-applications on Kubernetes, management of Docker images, and access to application secrets via Vault
• Participation in production deployments (MEP)
• Onboarding and support of junior developers on the project

**Technical Environment**: Microservices Architecture · Hexagonal Architecture · DDD · TDD · Design Patterns (Outbox, Factory, Builder, Singleton) · Java 11 · JUnit5 · Mockito · Spring 5 / Boot / Security / Data / Batch / Cloud / Actuator · Maven · REST · SOAP · Hazelcast · Swagger · Elasticsearch · Kibana · Grafana · PostgreSQL · Hibernate · Liquibase · Apache Kafka · Angular 12 · TypeScript · Karma · Docker · Kubernetes · Jenkins · Sonar · F5 · Vault · GitLab · Jira · Confluence**Methodology**: Scrum / SAFe

• Analysis of functional specifications in collaboration with Business Managers and Presales teams
• Design and development of the back-office (Node.js / React) integrating the Microsoft Bot Framework SDK
• Docker containerization of the MVP to facilitate demonstrations and deployment
• Presentation and demonstration of the MVP during Talan's calls for tenders

**Environment**: Node.js · React · JavaScript · jQuery · Ajax · REST · Microsoft Bot Framework SDK · Microsoft Azure · Docker · Git