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Java Technical Lead

Java Technical Lead

Groupe SIIBrussels Metropolitan Area, Belgium
10 dagen geleden
Functieomschrijving

SII Belgium is looking for a Full Stack Developer / Technical Referent to join our Service Center located on-site at one of our key clients in the Defense sector!

In this hybrid role, you'll take part in software development while also acting as a technical referent within a small and agile team working on high-security, mission-critical projects.

SII is a European digital and engineering services company of 16,000 experts. SII Belgium supports large businesses in adopting new technologies and managing innovation. We value empowerment and entrepreneurship, offering a fulfilling work environment. Our mission is to shape the future of digital products and services, while contributing to a sustainable world.

Responsabilities :

As Full Stack Developer (80%)

  • Design and develop secure, high-quality applications using Java and Angular
  • Perform unit and integration testing to validate functionality, performance, and security
  • Write and maintain technical documentation following internal and industry standards
  • Collaborate with client teams to contribute to software architecture decisions

As Technical Referent (20%)

  • Support and coach junior developers through code reviews and day-to-day guidance
  • Participate in monthly technical governance meetings with client stakeholders and SII management
  • Help structure and optimize the service center by analyzing project activities, documenting processes, and promoting autonomy within the team

    • You’ll be working in a modern and secure environment using :

  • Back-end : Java 17, Spring Boot
  • Front-end : Angular, web authentication protocols (SAML, OpenID, OAuth)
  • Integration & APIs : REST, XML, JSON
  • Security : PKI, Java Cards
  • DevOps & Tooling : Git, Maven, CI / CD pipelines, Docker, Kubernetes
  • Infrastructure & Messaging : Linux, Kafka
  • Approach : DevSecOps best practices

    • Requirements :

  • Bachelor’s or Master’s degree in Computer Science or related field
  • Minimum 5 years of experience in software development
  • Solid experience with Java, Spring Boot, and Angular
  • Familiarity with CI / CD pipelines, containerization, and secure coding practices
  • Experience in high-security environments or the defense sector is a strong plus
  • Fluent in English (French is a plus)
  • Strong communication skills and willingness to support and lead technically
  • Payroll only

    • What We Offer :

  • A strategic role on a long-term project in the Defense sector
  • A balanced position combining hands-on development and technical leadership
  • Competitive salary and full benefits package
  • Access to continuous learning, certifications, and career development
  • A collaborative and supportive work culture backed by a strong international group

    • Ready to take the lead while staying hands-on? Apply now and Let’s Tech Together!

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    Technical Lead Java • Brussels Metropolitan Area, Belgium