Description

With 7 years of experience delivering production-grade software, I specialize in building scalable, maintainable, and resilient systems using Java, the Spring ecosystem, and Angular. My focus is on creating event-driven microservices and cloud-native architectures on AWS, leveraging Terraform and Ansible for infrastructure automation, all guided by clean code and solid design principles.

Backend / Java / Spring

Java 8–21 • J2EE • Spring Boot • REST APIs • Microservices • Spring Data JPA • Hibernate • Custom Queries • Pagination • Spring Security • OAuth2 • JWT • Keycloak • Okta • Spring Batch • Job Scheduling • Spring Cloud • Config Server • Eureka • Gateway • Resilience4j • Kafka • Kafka Streams • Avro • Flyway • Maven • Tomcat

Databases

Oracle • PostgreSQL • Stored Procedures • Query Optimization • MongoDB

Security & DevOps

Keycloak • Okta • IAM • SSO • Docker • Jenkins • GitLab CI/CD • AWS EC2 • S3 • ECS

Frontend

React • React Native • TypeScript • Redux • RecoilJS • Ant Design

Practices / Architecture

CI/CD • TDD • Unit Testing • Integration Testing • JUnit • Mockito • Testcontainers • Scrum • Agile • Design Patterns • Clean Code • DDD • SOLID • Event-Driven Architecture • Cloud-Native • Distributed Systems • API Security

Other

GitHub: github.com/celrati

Languages

French
Native or bilingual
English
Native or bilingual
Arabic
Native or bilingual
Spanish
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km)

BNP Paribas CIB
Software / DevOps Engr. Java
November 2024 - Today (1 year and 7 months)
Senior Software Engr. JAVA - ANGULAR

Automated CI/CD pipelines and optimized infrastructure using Jenkins and Ansible for seamless server deployments, alongside managing Tomcat clusters, distributed caching, and Kibana monitoring.

Spearheaded the modernization of a critical Front-to-Middle Office trade centralization platform, executing a major migration from Java 6 to Java 8.

Engineered robust data integration pipelines handling high-volume deal records using Spring, EJB/J2EE, Tibco, and Oracle databases.

Architected a full-stack deal booking system for market and internal transactions using Java 17, Spring Boot, and a responsive Angular frontend.

Implemented an event-driven architecture by integrating Apache Kafka for asynchronous microservice communication, significantly boosting system throughput.

Designed a comprehensive security and data layer, securing APIs with Spring Security, OAuth2, and Apigee, while managing schema migrations via Liquibase.

Optimized application performance and observability through Tomcat clustering, distributed caching, and centralized monitoring with Kibana.

. Java 6, 8, 17, Spring Boot 3, liquibase, Spring Security, Kafka
. Apigee, OAuth2
. Oracle
. WebLogic, TIBCO, EJB (J2EE), XSLT
. Angular, TS, primeNG
. Jenkins, Ansible, Tomcat, Kibana.
. Junit/ Maven/ Testcontainer/ SonarQube
Java Angular Spring boot Ansible Jenkins
Société Générale - CIB
Senior Software Engr. Java - React
BANKING AND INSURANCE
February 2023 - October 2024 (1 year and 8 months)
Software Engineer Craftsman (Java17 / Spring Boot / Spring batch)

Worked on refactoring the legacy Maestro project, including its APIs and batch processes, while also implementing new features. Maestro is a reference software that provides regulatory, tax-related, and other types of data across multiple external services.

. JAVA 17, Spring boot, Spring batch, Spring Security, GWT.
. Devops (CI/CD Jenkins, Xldeploy).
. Database migration : Oracle/ Flyway/ SQL/ PLSQL, MongoDB
. Monitoring (Elastic, Grafana, Kibana)
. DDD, unit testing, Resiliency, Scrum.
Java React.js Oracle Spring boot Spring Batch
CANAL+
Software Engr. JAVA
November 2020 - February 2023 (2 years and 3 months)
Val-de-Fontenay, Fontenay-sous-Bois, France
Developed and integrated the OneAccess service within the microservice architecture for Canal+ CRMs, leveraging Spring Cloud. This involved implementing a user-friendly React-based GUI, integrating Okta SDK, and configuring OAuth2 authentication with Spring Security and Okta

• JAVA 11, Spring Boot, Spring Cloud/ Spring Gateway/ Spring config/ Consul/ Spring Sleuth/zipkin
. Oauth2/OIDC : Spring Security / Okta
• Devops (CI/CD Jenkins, Docker)
. FrontEnd: React/ Redux/ typescript
. Junit/ Maven/ Testcontainer/ SonarQube
Java Spring boot Okta React.js Spring Security