Senior Business Analyst - Solution Architect
Directorate of Special Units – National Technical & Tactical Support Unit

Working environment

The Directorate of Special Units of the Federal Police (DSU) is a highly specialized support unit that provides and/or implements specialist support, tactics, and techniques for the local and federal police. The DSU focuses on serious organized crime and the activities of terrorist and extremist groups. DSU is a police service that can be deployed throughout Belgium and abroad if necessary.

The NTSU (National Technical & Tactical Support Unit) is part of the Special Units of the Federal Judicial Police. It is primarily responsible for preparing and carrying out discreet placements of equipment as part of special search methods and in crisis situations. Within the NTSU, the CTIF (Central Technical Interception Facility) is responsible for real-time interception and observation of telecommunications. CTIF has the necessary infrastructure to carry out its missions and is also developing its own solutions to make telecommunications interception more effective in the future.

You will be joining a dynamic, passionate team where the exceptional is every day’s reality: the resources, systems and technologies legally reserved for police and intelligence services are our working tools in judicial investigations.

Job description

We are looking for a skilled and motivated Senior Business Analyst – Solution Architect to ensure the reliability, optimisation, and continuous improvement of critical business and telecommunication applications.

You will act as a key interface between business stakeholders, IT teams, developers, infrastructure teams, and telecom experts, ensuring that business requirements are translated into scalable, secure, and sustainable technical solutions. The role requires both strong analytical capabilities and a solid understanding of application architecture, system integration, and software development practices.

Responsibilities

Coordination & Support

• Support the design, testing, deployment, and implementation of new solutions.
• Collaborate with team members to troubleshoot and resolve performance issues in supported applications and systems.
• Ensure the stability, efficiency, and reliability of critical business solutions.
• Create and maintain comprehensive documentation, including procedures, architectural diagrams, technical specifications, test plans, user guides, and support materials. Ensure that the end user’s needs are properly addressed.
• Take ownership of assigned tasks, assess risks, and escalate when necessary.

Business Analysis & Requirements Management

• Analyse, challenge, and formalise business needs related to telecom and IT applications.
• Translate operational and technical requirements into clear and comprehensive functional specifications.
• Conduct impact analyses, feasibility studies, and risk assessments.
• Define and optimise existing processes (AS‑IS / TO‑BE).
• Work closely with Product Owners, network engineers, architects, and IT teams to ensure solution consistency.
• Participate in change management and user training activities.
• Monitor deliverable quality, ensure functional validation, and support testing phases.

Solution Architecture & Technical Design

• Design end-to-end solution architectures that align business objectives with technical capabilities, enterprise standards, and operational constraints.
• Produce and maintain architecture deliverables, including solution designs, architecture diagrams, integration flows, sequence diagrams, and technical specifications.
• Define application, data, integration, and process architectures for new and existing solutions.
• Drive the definition of target-state architectures that address identified gaps, meet business and technical requirements, are supported by stakeholders, and remain feasible within organisational and technical constraints.
• Define and validate application, data, and integration architectures, including APIs, authentication mechanisms, connectivity models, and interactions with internal and external systems.
• Refine, challenge, and document non-functional requirements, including availability, performance, scalability, security, resilience, maintainability, and auditability.
• Evaluate architectural options, technologies, and integration patterns, assessing feasibility, trade-offs, risks, costs, and long-term sustainability, and facilitate decision-making with relevant stakeholders.
• Ensure seamless integration between telecom platforms, business applications, databases, middleware, APIs, and external systems while complying with security, governance, regulatory, and operational requirements.
• Participate in architecture reviews, contribute actively to technology roadmaps, and conduct or coordinate Proof of Technologies (PoTs) and Proof of Concepts (PoCs) and technical feasibility assessments to validate solution approaches.
• Work closely with development teams throughout the solution lifecycle, providing technical guidance and ensuring adherence to architectural principles, integration standards, design patterns, and software engineering best practices.
• Provide technical guidance and support during design, development, testing, and deployment phases.
• Contribute and support solution design decisions involving cloud technologies, microservices, APIs, event-driven architectures, databases, automation platforms, and DevOps/CI-CD practices.
• Possess sufficient hands-on technical knowledge to understand application code structures, integration mechanisms, data models, and development constraints, and to effectively challenge, support, and guide implementation teams.

Collaboration & Communication

• Work effectively within a multilingual, interdisciplinary team.
• Communicate complex business and technical concepts clearly to both technical and non-technical stakeholders.
• Act as a trusted advisor to business stakeholders by balancing functional needs with architectural and technical considerations.
• Contribute as a team player while being fully capable of working independently.
• Demonstrate initiative, leadership, problem-solving skills, and a proactive approach to continuous improvement and innovation.
• Facilitate stakeholder discussions and support informed decision-making by clearly presenting architectural options, risks, trade-offs, and recommendations.
• Promote knowledge sharing and contribute to the continuous improvement of architecture, development, and operational practices across teams.
• Translate complex technical concepts into clear and actionable information for both technical and non-technical audiences.

Required experience

• Proven 5–7 years of experience as a Senior Business Analyst, Solution Architect, Technical Business Analyst, Application Architect, or a similar role involving solution design, system integration, and stakeholder management.
• Strong understanding of application architecture, enterprise systems, system integration, and the Software Development Life Cycle (SDLC), with experience working closely with development, DevOps, infrastructure, and business teams.
• Experience designing and documenting complex solutions, including architecture diagrams, process models, technical specifications, and integration architectures.
• Solid knowledge of modern technologies and architectural principles, including cloud platforms, APIs, microservices, integration patterns, databases (SQL/NoSQL), and non-functional requirements such as performance, availability, scalability, and security.
• Experience evaluating technical solutions, architectural alternatives, and emerging technologies through feasibility studies, technology assessments, and Proof of Concepts (PoCs) in complex, multi-vendor environments.

Understanding of telecom technologies is a strong asset:

• Mobile networks (2G/3G/4G/5G)
• VoIP, SIP, IMS
• IP Data communication

Profile description

• Ability to translate business needs into functional and technical requirements.
• Experience with testing, validation, and application deployment.
• Knowledge of Agile methodologies (Scrum, Kanban) is an advantage.
• Familiarity with modelling tools (BPMN, UML) is a plus.
• Strong analytical mindset, leadership skills, and critical thinking.
• Ability to manage multiple tasks or projects simultaneously.
• Pragmatic, solution‑oriented approach to technical and functional challenges.
• Curious, proactive, and eager to learn new technologies.
• Strong communication and documentation skills.
• Discrete, stress‑resistant, and reliable in sensitive environments.
• Ability to work with multilingual and interdisciplinary teams.
• Fluent in French or Dutch, with solid understanding of the other language.
• Good command of written and spoken technical English.

A ‘TOP SECRET’ level security clearance is required for this position, as referred to in the law of 11/12/1998 on classification, security clearances, attestations, and notices.

Presence at the office at least three times a week. Telework permitted.