About Omar
I help companies build reliable and scalable web applications using Java, Spring Boot and Angular.
I am a Full-Stack Java Developer with 7 years of experience in backend and frontend development. I have worked on enterprise projects in insurance, public administration and e-commerce, using Spring Boot, Angular, REST APIs, Hibernate/JPA, SQL databases and microservices architecture.
I can help you with:
- Developing backend APIs with Java and Spring Boot
- Building modern frontend interfaces with Angular
- Creating and maintaining microservices
- Integrating Kafka for asynchronous communication
- Fixing bugs and improving application performance
- Writing clean, maintainable and testable code
- Working with databases such as PostgreSQL, MySQL and Oracle
I have experience with Spring Security, OAuth2, Swagger/OpenAPI, Docker basics, unit and integration testing, and monitoring tools such as Grafana and Prometheus.
I am serious, detail-oriented and comfortable working in Agile teams. I can quickly understand business needs and deliver clean technical solutions.
Arabic
Native or bilingual
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- Prime itSenior Full-Stack Java Developer | Spring Boot | Angular | Microservices | KafkaJune 2026 - TodayLisbon, Portugal- Joined Prime IT as a Senior Full-Stack Java Developer.- Working with Java, Spring Boot, Angular, Microservices, and Kafka.- Currently participating in onboarding and project/client integration.- Preparing to contribute to backend and frontend development, API design, bug fixing, and technical improvements.
- RGI GroupAnalyst Developer Java/JeeMarch 2023 - May 2026 (3 years and 2 months)Tunis, Tunisia• ∙ Implemented configuration management strategies using Spring Cloud Config Server for centralized configuration manage ment.• ∙ Utilize Kafka, along with Spring Cloud Functions and Spring Cloud Stream (for communication between microservices).• ∙ Applied Resilience4j framework for creating fault-tolerant and resilient microservices.• ∙ Actively contributing to bug-fixing efforts within ongoing projects, ensuring their stability and functionality.• ∙ Use Grafana and related observability and monitoring tools, including Prometheus, Loki, Promtail, and Tempo, to monitor and visualize system performance.• • Addressed cross-cutting concerns and managed routing in microservices using Spring Cloud Gateway.• ∙ Spring Boot and Hibernate/JPA for robust backend development• ∙ Responsible for documentation of Rest API using swagger.• ∙ Unit testing is performed using junit.• ∙ Gitlab CI/CD is used for continuous deployement and continuous integration process.• ∙ Developed reusable components in Angular that handle dynamic data.• ∙ Good Knowledge on creating services with angular @injectable property, as to make the service available for dependecy injection when creating components.• ∙ Key words: Angular, TypeScript, Java, Spring Spring Spring Server, Spring Spring Spring Hibernate, JPA, REST Kafka, Resilience4j, Spring JUnit, Mockito, Spring Test, Rest Assured, Testcontainers, Docker, GitLab Grafana, Prometheus, Loki, Promtail, MySQL
- think tank Business SolutionsFull Stack DeveloperJuly 2021 - January 2023 (1 year and 6 months)Tunis, Tunisia• ∙ Collaborate to improve application through code reviews.• ∙ Ensuring code quality, including covering the code with the tests (Integration tests + unit tests).• ∙ Contribute to the development of various modules.• ∙ Working in Agile team.• ∙ mentoring to integrate new developers into the project (Work shadowing).• ∙ Development of Angular components and creation of services in order to communicate with Restful APIs.• ∙ Performed form validations using reactive forms from Angular 10 framework.• ∙ Involves in Sprint planning for the estimation of efforts for user stories and bugs.• ∙ integrate Constellio EIM(ENTERPRISE INFORMATION MANAGEMENT) in spring boot application in order to manage documents upload,delete or download from it.• ∙ Created DAO interface,abstract class and concrete classes to interact with persistence entities.• ∙ Used Log4j framework to log/track application.• ∙ OAUTH 2.0 authentication framework is used to provide security to Restful web services by generating access token in order to access protected resources.• ∙ Key words: Angular TS,Spring boot,Spring Cloud,GraphQL,Java,Maven build tool,Oracle Database,liquibase, JPA,Rest Api,Selenium Test,OpenAPI Generator,Microservice architecture ,Junit ,Mockito , Spring test,Docker,GitLab CI/CD,oauth 2 ,Spring Security.
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Education
- Computer Science EngineerNational School of Computer Sciences2020
Certifications
- Learn Angular for ModernWeb ApplicationsCredly2026
- • Master Microservices with Spring Boot, Docker, KubernetesUdemy2024