Domain Architect

Expanding steadily since its launch in 2003, the ACENSI group is an IT consultancy firm, well known for their technical and functional know-how, who specialize in Telecommunications, Media and Financial Markets, as well as in the Energy industry. ACENSI guides businesses in evolutionary IT projects from the initial strategies through to their realization (Management and Project management, Development, Design and Implementation, Infrastructure). From its original focus on technical engineering and Business Analysis, ACENSI has developed new areas of expertise in Human Resource Management Systems, Business Intelligence, e-learning and Client Relationship Management. Dynamism, enthusiasm and social development are all valued at ACENSI, allowing our clients to benefit from consultants with a true blend of talents. ACENSI BELGIUM is looking for his client a IT Domain Architect (F/M/X) Service Description Our client is seeking a high-impact IT Domain Architect to join its Belgian IT Architecture team. This role is specifically focused on the Corporate, AI & Market Business Domain, which encompasses:
• Enterprise corporate capabilities and supporting functions.
• Artificial Intelligence, a strategic technology domain focused on advancing and governing AI capabilities across the organization.
• Interactions with the wider energy market. As the Domain IT Architect, your mission is to ensure the domain's IT landscape is coherent, secure, operable, and future-proof, enabling safe and reliable operations while aligning with the organization's strategy and regulatory obligations. We aren't just looking for a theorist; we need a pragmatic bridge builder. You will be the vital link between ambitious business initiatives and robust IT realizations. You will work at the intersection of strategy and execution, transforming high-level business capabilities into tangible, scalable technical blueprints.

Key Responsibilities
As a Domain Architect, your mission is to ensure the domain's IT landscape is coherent, future proof, and aligned with the organization's strategic goals. Architectural Translation & Design
• Form a strategic "tandem" with Business Architecture to translate organizational capabilities into actionable IT roadmaps.
• Convert complex business processes into detailed IT Blueprints that guide development and implementation teams. Standards & Governance
• Define and enforce domain-specific principles while ensuring alignment with Group and Local principles, standards, and reference architectures.
• Present, justify, and defend architectural designs before the Architectural Review Board (ARB).
• Formalize logic through Architectural Decision Records (ADRs) to ensure long-term maintainability.
• Guard against architectural drift and unmanaged technical debt.
• Monitor SLA/OLA performance and report domain-level risks. Portfolio Management
• Maintain a single source of truth for the application and platform portfolio within the Enterprise Architecture Repository.
• Conduct regular portfolio assessments (e.g. Gartner TIME, 6R), factoring in operational criticality, in close collaboration with business and IT stakeholders (IT Application Managers).
• Identify opportunities for application/platform reuse to reduce technical debt and operational costs.
• Work with Solution Architects within the IT Domain to ensure solutions are viable across build, run, evolve, and retire phases, while ensuring alignment with domain strategy and quality standards. Strategic Advisory
• Conduct trade-off analyses (e.g. cost, risk, complexity, time to value) to facilitate executive decision-making.
• Perform peer reviews of Solution Architecture deliverables for domain consistency.
• Develop and maintain domain roadmaps anticipating regulatory, technological, and energy system evolution.
• Advise senior stakeholders on long-term architectural implications of strategic decisions. Data, Integration & Information Architecture
• Work with Data Architects and Solution Architects to govern data models, integration patterns, and data ownership.
• Work with Enterprise Architects and Platform Architects to ensure interoperability between enterprise systems, control systems, and analytics platforms.
• Coordinate with Data Architecture teams to ensure semantic consistency and data quality. Security, Resilience & Compliance
• Work with security and compliance teams to ensure that security, availability, and resilience requirements are embedded into domain architectures and comply with applicable regulatory, safety, and cyber obligations.
• Define architectural measures for business continuity and disaster recovery. Requirements You are a delivery-focused professional who thrives in a dynamic environment where technical rigor, operational reliability, and business agility intersect. Core Competencies The Trusted Advisor You possess exceptional communication skills, allowing you to navigate conversations with:
• C-level stakeholders.
• Operational leaders.
• Project and Product leadership (Project Leaders, IT Application Managers, Product Owners).
• Technical engineering teams You can clearly articulate complex trade-offs and architectural decisions. Strategic Mindset You do not just design for today; you shape architectures that are scalable, compliant, resilient, and operable across their full lifecycle, balancing innovation with long-term sustainability. Collaborative Leadership You are a natural collaborator who actively works with Business, Domain, Solution, Security, Platform, Enterprise, Information, and Data Architects. Governance & Decision Ownership You are comfortable operating within architectural governance, defending architectural positions, accepting accountability for domain-level decisions, and ensuring adherence to standards without compromising delivery. Technical & Professional Experience Architecture Frameworks & Modelling
• Deep knowledge of TOGAF and ArchiMate.
• Ability to apply these frameworks pragmatically in delivery contexts. Modern IT Analysis & Design Practices
• Hands-on experience with Domain-Driven Design (DDD).
• Event Storming.
• Agile Architecture methodologies. Industry Expertise
• Strong background in corporate business capabilities, processes, and supporting systems across functions such as: o Finance. o HR. o Procurement. o Corporate Services.
• Experience within the Energy & Utilities sector, with exposure to: o Electricity market facilitation. o Outage planning. o Scheduling. o Balancing services. o Voltage services. Analytical Rigor
• Familiarity with evaluation methods such as: o ATAM (Architecture Tradeoff Analysis Method). o Gartner TIME. Industry & Domain Expertise
• Background in Corporate domains and SAP products
• Knowledge and experience with: o AI target architectures. o Reference architectures. o Architectural patterns. o AI governance (e.g. EU AI Act). o Integration architecture (e.g. MCP).
• Knowledge of Energy Market Facilitation Services is a plus. o Security.
• Awareness of IT/OT integration, operational constraints, and safety-critical systems typical of a TSO environment.
• Understanding of architectural implications related to: o Availability. o Regulatory compliance. o Operational risk.
• Awareness of Corporate business capabilities, processes, and supporting systems across functions such as: o Finance. o HR. o Procurement o Corporate Services. Languages
• Native-level proficiency in Dutch, French, or German.
• Professional proficiency in English.
• Knowledge of one or more additional national languages is considered an asset.