Frontend Developer

#HumanizingTechnology

**ABOUT SEIDOR**

At SEIDOR, we help drive the transformation and competitiveness of our clients through technology and innovation, always focusing on the value of the human side and being committed to talent and sustainable development.

We are a diverse and inclusive organization that believes in equal opportunities. We already have over 8,000 professionals in 45 countries across Europe, Latin America, the United States, the Middle East, Africa, and Asia.

Here, you can develop and grow both professionally and personally from day one, with the support of a great team that shares human values.

We carry out projects with a positive impact at both national and international levels, serving clients from different industries and collaborating closely with the leading technology providers (such as SAP, Microsoft, Salesforce, IBM, Google, AWS, Cisco, Adobe). We are one of the most recognized and awarded companies by our partners.

We are committed to sustainability and promote ESG (Environmental, Social, and Governance) criteria to achieve sustainable development. We have reduced and offset our carbon footprint, becoming a net-zero company.

At SEIDOR, we believe that to address the challenges of the digital world and the new hurdles that arise, we must have the best allies, market-leading technologies, and, above all, the best people.

**Will you join us in humanizing technology?**

**ABOUT THE JOB**

We are a large company with a start-up spirit. We organize ourselves into expert knowledge Units that collaborate with each other.

That's why we are looking for curious individuals who are motivated by challenges and eager to grow personally and professionally, to join our team and make a positive impact on the world through technology.

**ARE YOU UP FOR THE CHALLENGE?**

We want you to be a part of our team, from **Brussels**, as a** Frontend Developer**

**WHAT WILL YOU DO IN YOUR DAY-TO-DAY?**
- **Design and implement APIs** and ensure their integration with other systems.
- Build **reusable, modular, and efficient code** for future use.
- Develop and integrate **technological components** within complex systems.
- Translate **user requirements** into functional solutions.
- Perform **prototyping, testing, and documentation**.
- Ensure **system deployment and configuration** support.
- Participate in **project and technical meetings** with other development teams.

**WHAT WILL YOU FIND AT SEIDOR?**
- A diverse team. We respect the differences that make us more human.
- Companionship. We work as a team and learn from each other.
- Flexibility and work-life balance. Remote working is in our DNA. We promote flexible working hours and offer shorter working day every Friday, as well as in the months of July and August.
- Continuous learning. Language courses, technical training, certifications, and more.
- Personalized career development, allowing you to decide where you want to go.
- Autonomy and the opportunity to suggest and promote new opportunities.
- Flexible compensation program. Childcare vouchers, restaurant benefits, transportation, and health insurance.
- Exclusive discounts and special conditions on technology, leisure, travel, and more.
- You can be part of charitable and environmentally related initiatives.
- If you have international interests, we are present in 45 countries.

**Join our team and help us humanize the world through technology**

**WHAT DO WE EXPECT FROM YOU?**
- ** Technical Competencies**
- In-depth knowledge of **HTML5** and **CSS3**.
- Strong expertise in **Java 8 / 11** (Java 17+ is an asset).
- Proven experience with the **Spring framework** (Core, Boot, MVC, Security, Validation, Testing).
- Experience with **JavaScript frameworks** (Angular, jQuery, React).
- In-depth understanding of **relational databases** (Oracle, MySQL).
- Good grasp of **Agile principles** and methodologies.
- Familiarity with **software design principles** (SOLID, IDEALS, CQRS; SAGA is an asset).
- Knowledge of **interoperability technologies** (REST, SOAP, SOA, message-oriented middleware).
- Knowledge of **UML diagrams** (use case, activity, state transitions).
- Experience with **source code control and CI/CD tools** (GIT, Bitbucket, Maven, Gradle, Bamboo).
- Knowledge of **testing tools** (JUnit, Mockito, Spring Boot Test).
- Understanding of **security protocols** (JWT, OIDC, CAS, encryption/signing).
- Familiarity with **API Gateways** (WSO2, Spring Cloud Gateway, Eureka/Zuul).
- Understanding of **DevSecOps**, **Docker**, **Kubernetes**, or **AWS** (asset).
- Knowledge of **Enterprise Service Bus technologies** (Apache Camel, ServiceMix, Oracle Service Bus).
- Awareness of **web accessibility standards** (WCAG 2.0/2.1, WAI-ARIA).
- Good understanding of **UX design principles**, especially **responsive** and **mobile-first** design.

**Soft Skills**
- Strong **analytical** and **problem-solving** skills.
- Excellent **technical writing** and **documentation** capabilities.