Position Title: Secure Data and Document Expert
Location: Brussels, Belgium
Duration: 6 Months with possible extension
Languages: French and English
Work mode: Hybrid (2 days a week)
Job Description:
Minimum Experience and Education requirement
Master's Degree, at least 5 years of experience / bachelor’s degree plus 9 years of experience
As a Secure Data and Document Expert you will:
* Design, architect, and implement the integration layer between backend systems and secure messaging software
* Provide expert advice on confidentiality, integrity, authorization, authentication, non-repudiation, and availability
* Support security testing and conduct regular vulnerability and risk assessments of messaging and data transfer systems
* Offer comprehensive guidance for optimizing the integration layer
* Maintain technical specifications for transport and messaging protocols and their implementation in software
Qualifications
* Master’s degree with 5+ years (or Bachelor’s with 9+ years) of experience in document protection, including digital signatures, X.509, PKI, ASiC, and eIDAS
* Extensive knowledge of messaging protocols (ebMS3, AS4, XML, JSON, BDXL) and web security standards (TLS, OAuth2, OpenID, WS-Security, OWASP)
* Advanced backend development skills with Java, OOP principles, design patterns, and transactional databases (SQL, LDAP, ACID/XA)
* Over 3 years of mobile development experience for Android (Java/Kotlin) and iOS (Swift), including Key Attestation
* Hands-on experience with CI/CD, testing, and monitoring tools: Jenkins, Git, SonarQube, Selenium, JMeter, Dynatrace, Splunk
* Proficiency with containerization and infrastructure: Docker, Kubernetes, Linux, virtualization, load balancers, TPM, HSM
* Skilled in Agile frameworks (SCRUM, OpenPM2) and collaboration tools including JIRA and Confluence
* Strong communication and documentation skills, autonomy, adaptability, and fluency in English and French (C1 level)
It would also be a plus if you have:
* SANS Web Application Tester certification
* Experience with EU institutions
* Knowledge of advanced cryptographic hardware (TPM, HSM)
* Relevant certifications in security, project management, or software development
* Experience in large-scale international or multicultural projects