Woodson Juste

From March 2021 to December 2025, I worked as a Web/Java/.NET Trainer at Dawan, a French IT training organization supporting developers and engineers of all levels.

My mission was twofold: technical training and internal project supervision.

On the training side, I designed and delivered technical training to over 150 learners — developers, engineers, and professionals retraining, from Bac+2 to Bac+5 levels. I notably trained employees from major groups like Orange, Capgemini, and La Poste on Java, Spring Boot, Angular, C#, ASP.NET, Blazor, WPF, .NET, React, JavaScript, HTML/CSS, and Agile practices (Scrum, Kanban, XP). I also led practical workshops on application security — CVE monitoring (OWASP, ANSSI, NVD/CVE Details), testing with OWASP ZAP, XSS and SQL injection vulnerability analysis — and on test plans (JUnit, Mockito, Cypress, Selenium, Postman, SonarQube). I prepared learners for Agile certifications (PSM I — Professional Scrum Master I).

On the internal projects side, I supervised a team of apprentices on the DaAcademy project, an Open Source web platform for managing and promoting Dawan's international training programs. I supported the team through all phases: roadmap development, user story and backlog definition, backend development with Spring Boot, frontend with Angular, JWT security integration, dynamic PDF generation, email sending via Thymeleaf, and quality with SonarQube.

Technologies used: Java, Spring Boot, Angular, REST API, Microservices, C#, ASP.NET, Blazor, WPF, .NET, React, JavaScript, HTML/CSS, Docker, CI/CD, DDD, Clean Architecture, Hexagonal Architecture, Scrum, Kanban, OWASP ZAP, JWT, OAuth2, Spring Security.

From March 2020 to July 2020, I worked as a Java Developer, Designer, and Analyst at iMSA (Mutualité Sociale Agricole), a social protection organization for the agricultural sector.

My main task was to design and develop a Java Mass Processing tool (TMJ) with Spring Batch to automatically purge invoices older than 5 years.

I collaborated directly with business teams to validate deletion rules and define processing cycles (every 6 months). I designed the complete Spring Batch architecture — defining jobs and steps (ItemReader, ItemProcessor, ItemWriter) — and optimized PostgreSQL SQL queries through indexing to efficiently identify and delete obsolete invoices.

I also implemented fault tolerance mechanisms (skip/retry) to ensure processing continuity despite occasional errors. I also collaborated with the DevOps team for integrating the tool into a CI/CD pipeline with Maven and SVN, and assisted with automated deployment via Jenkins on JBoss in a production environment.

Technologies used: Spring Batch, Java, JEE, PostgreSQL, SQL, Maven, SVN, Jenkins, JBoss.

From March 2019 to June 2019, I worked as a freelance Java Back-End Developer at Beorn Technologies, a Toulouse-based company specializing in web application and portal development.

My main mission was to participate in the migration of the Toulouse Métropole portal to Liferay 6.2, in an Agile Scrum/Kanban environment.

I implemented two Liferay Hook plugins: the first to remove obsolete content from version 6.1, the second to transform the remaining content by adapting it to the new types and structures of Liferay 6.2.

To ensure traceability of deleted and transformed data, I developed a logging module capable of tracking each action and generating detailed reports in CSV format for the Toulouse Métropole client.

I set up unit tests with JUnit, Mockito, and PowerMockito, and handled all functional tests in the acceptance and qualification environments. I processed and corrected bugs and anomalies reported by the client.

I also developed a portlet based on Service Builder (Maven) to automatically synchronize data between the production server and the pre-production environment.

I actively participated in Agile ceremonies — Sprint planning, Daily meeting, Sprint review — and monitored the Burndown Chart to adjust the workload in case of delays.

Technologies used: Java, Liferay 6.1 and 6.2.5, MySQL, Maven, JUnit, Mockito, PowerMockito, Agile (Scrum, Kanban).