NNCCRS SW Engineer

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. 1. 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 2. 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 3. 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 4. 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 5. 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 6. 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 7. 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 8. Testing and Quality Assurance: Perform unit, integration, and system testing; Support user acceptance testing; Ensure compliance with security and performance requirements 9. Support and Collaboration: Collaborate with stakeholders to refine requirements and priorities; Translate operational needs intopractical 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. 1. 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 2. 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; G enerating technical documentation using LaTeX and automated build pipelines; Experience working within controlled or restricted DevOps environments is highly desirable. 3. Domain Knowledge: The contractor should have: Understandingof 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. 4. 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 5. User Experience and Requirements Translation: The contractor sh