Start date: Negotiable

Clearance: NATO Secret or equivalent

Location: Offsite (within Belgium)

The contractor shall be responsible for the end-to-end delivery of the Military Text Format (MTF) message monitoring application, in accordance with the defined requirements.

• Design and Development: Design the overall system architecture aligned with the prescribed technology stack; Develop backend services for message ingestion, processing, validation, and storage; Develop frontend components for user interaction, including dashboards and detailed views; Implement message parsing and validation logic for MTF messages; Ensure extensibility of configurable elements such as message categories
• Integration: Integrate the application with Microsoft Exchange using EWS to monitor the registry mailbox; Implement authentication and authorization via Keycloak and Active Directory; Implement and manage X.509 certificate usage where required; Ensure proper interaction between frontend, backend, and database components
• Data Management: Design and implement the database schema; Ensure efficient storage and retrieval of message data and delivery status information; Implement user and group-based access control within the application
• Delivery Status and Monitoring Features: Implement tracking of message delivery, read, and acknowledgement status; Develop mechanisms to calculate and display status metrics and percentages; Provide visualization components for operational awareness, including dashboards
• Validation and Compliance: Implement validation of MTF messages against both generic and type-specific structures; Implement validation of message exchange workflows; Identify and highlight missing actions and inconsistencies
• DevOps and Deployment: Configure and maintain Amazon Azure DevOps pipelines for build and release; Produce deployable RPM packages; Implement and maintain software deployment automation; Ensure the application can be deployed on Oracle Linux environments
• Documentation: Produce and maintain documentation in LaTeX format, including User manual, Installation guide and Deployment plan; Ensure documentation is complete, accurate, and aligned with the delivered system
• Testing and Quality Assurance: Perform unit, integration, and system testing; Support user acceptance testing; Ensure compliance with security and performance requirements
• Support and Collaboration: Collaborate with stakeholders to refine requirements and priorities; Translate operational needs into Duties & Role: practical technical and user interface solutions; Provide technical guidance and recommendations where appropriate; Support troubleshooting and issue resolution during development and deployment
  
  
  

Requirements:

The contractor shall demonstrate proven expertise in the design, development, and delivery of secure, enterprise-grade web applications in a defence or similarly regulated environment.

• Technical Skills: The contractor shall possess strong, demonstrable experience in:
• Backend development using Java;
• Frontend development using React;
• Database design and implementation using PostgreSQL;
• Object-relational mapping using Java Persistence API (JPA);
• Integration with Microsoft Exchange using Exchange Web Services (EWS) or IMAP;
• Implementation of authentication and authorization using Keycloak, including integration with Active Directory, Working with X.509 certificates, including handling, validation, and secure usage; Deployment and configuration on Linux environments, preferably Oracle Linux (versions 9 or higher);
• Configuration and use of Apache as a reverse proxy;
• Version control using Git.
• The contractor shall have experience in:
• Designing scalable and maintainable system architectures;
• Implementing role-based access control and fine-grained authorization models; Developing applications with secure coding practices
• DevOps and Tooling: The contractor shall demonstrate experience with:
• Amazon Azure DevOps, including repository management, pipelines, and build automation;
• Creation and maintenance of CI/CD pipelines;
• Packaging applications in RPM format;
• Software deployment automation; Generating technical documentation using LaTeX and automated build pipelines;
• Experience working within controlled or restricted DevOps environments is highly desirable.
• Domain Knowledge: The contractor should have:
• Understanding of Military Text Format (MTF) messaging standards, or the ability to rapidly acquire such knowledge;
• Experience with message parsing, validation, and structured data processing;
• Familiarity with messaging workflows, delivery tracking, and audit requirements;
• Previous experience working within NATO environments is highly desirable.
• Security and Compliance: The contractor shall demonstrate:
• Experience in developing applications compliant with strict security standards; Familiarity with NATO Web Application Security Directive or equivalent security frameworks;
• Ability to implement secure authentication, data protection, and audit logging mechanisms
• User Experience and Requirements Translation: The contractor shall demonstrate a strong ability to:
• Translate user requirements into effective and usable web-based user interfaces;
• Balance user expectations with web design best practices, ensuring usability across different screen sizes and avoiding overly complex layouts, such as multiple panels or independent scroll areas
• Methodology, Communication and Collaboration: The contractor shall:
• Have proven experience working in Agile SCRUM environments;
• Be capable of participating in sprint planning, reviews, and retrospectives;
• Be able to conduct all work, communication, and documentation in English;
• Demonstrate strong communication skills and ability to collaborate with stakeholders, including technical and operational users
  
  
  

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