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Tayeb DJATOU

@tayebdjatou

Message

Senior API Designer at Crédit Agricole who shaped reusable OpenAPI contracts and Kafka event-driven services.

France

Message

At Crédit Agricole, I designed reusable REST API contracts with OpenAPI and applied domain-driven modeling to translate business capabilities into consistent interfaces. I also contributed to Kafka and Avro event-driven architectures and developed Spring Boot microservices.

At LCL, I develop Java features and Spring Batch jobs for the Sustainable Finance program, supporting ESG data collection and processing. I contribute to data model changes, data quality checks, performance improvements, and production support.

I’ve also worked on banking and CRM applications at BNP Paribas and E-DEAL / Efficy, and built a school management web application using Node.js, Angular, and PostgreSQL. Since 2021, I’ve taught programming fundamentals, Java OOP, data structures, and algorithms.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Developer – Data

Current

LCL (Crédit Agricole Group)

Jun 2025 - Present (1 year 4 months)

Building tools and applications to collect, process and ensure the reliability of ESG data. Developed back-end features in Java, contributed to data model evolution, and managed batch jobs with Spring Batch.

Java Spring Boot SpringBatch MongoDB OpenAPI Docker Kubernetes ArgoCD Gitlab CI ELK Prometheus Grafana

Current

Programming and algorithms teaching

Current

Self Employed

Jan 2021 - Present (5 years 9 months)

Teaching and mentoring programming fundamentals, OOP, data structures, complexity, and algorithms. Preparing exercises and helping with problem solving and exam revision.

Java Algorithms Data Structures Object Oriented Programming

Private school management web application

Personal Project

Nov 2024 - Jun 2026 (1 year 7 months)

Developed a web platform for a private school to centralize administration and student follow-up, including enrollment, group management, scheduling, attendance, and financial tracking.

NodeJS Angular PostgreSQL Fullcalendar

API Designer / Data / Senior Java Developer

Crédit Agricole

Jun 2023 - Jun 2025 (2 years)

Designed REST APIs using a contract-first approach and implemented event-driven architectures with Kafka and Avro. Developed Spring Boot microservices and contributed to architectural consistency.

Java Spring Boot Microservices REST OpenAPI Swagger Kafka Avro MongoDB Git Gitlab CI CD Dynatrace Grafana JUnit5 Cucumber Sonar Jira Scrum WSO2 APIM

Full Stack Developer – Java Spring Boot / Angular

BNP Paribas

Sep 2020 - Jun 2023 (2 years 9 months)

Developed and maintained business applications in Java/Spring Boot, optimized Oracle/PL/SQL queries, and migrated from Spring Boot 1.5 to 2.7. Provided production support and front-end enhancements in Angular.

Java Spring Boot Hibernate Maven Oracle Pl SQL Angular TypeScript HTML CSS Git Git Flow Jenkins Ansible Sonar Jira Linux Scrum

Full Stack Developer – Java / JavaScript (CRM)

E-DEAL / Efficy

Sep 2018 - Jul 2020 (1 year 10 months)

Developed and evolved a CRM application focused on customer data management. Worked on Java objects, JavaScript interfaces, REST services, and SQL optimization.

Java Spring Framework Hibernate Maven JavaScript jQuery AJAX HTML CSS Oracle SQL Pl SQL XML Git SVN Jenkins

CRM / Digital Marketing Developer (Adobe Campaign)

Soft Computing

Feb 2018 - Aug 2018 (6 months)

Integrated Adobe Campaign in a multi-client context and developed a GDPR-compliant responsive web application. Handled email personalization, targeting workflows, and campaign management.

Java JavaScript HTML CSS JSSP SQL Server Adobe Campaign