Strategic Enterprise Architect - IT Governance & TOM

NISH Technologies; Brussel; On-site; EUR 110,000 - 150,000; Full time

Job summary

NISH Tech BV is seeking an experienced Enterprise Architect to lead the federated IT Target Operating Model across Brussels and Berlin, aligning architecture governance with delivery, security, data and vendor processes.

You will establish ARB practices, define ADRs, drive architecture KPIs, coach teams and embed architecture into portfolio, funding, and projects, while ensuring measurable results.

Qualifications

• 10+ years of experience in an Enterprise Architecture role.
• Experience facilitating Architecture Review Boards (ARBs) and producing decision-ready documentation with traceability.
• Hands-on experience implementing delegated decision rights, ADRs, waivers, compliance reviews and architecture service models.
• Solid knowledge of ITIL, TOGAF, ArchiMate and Domain-Driven Design.
• Fluency in English.

Responsibilities

• Translate the approved Target Operating Model into concrete architecture working practices and an implementation backlog.
• Define milestones, dependencies, risks, decision points and suitable pilots to drive execution.
• Lead the definition and continuous improvement of the architecture governance framework.
• Establish principles, standards, policies, reference architectures and golden scenarios.
• Define and operationalize clear Architecture Review Board (ARB) decision workflows.
• Clarify mandates, interactions, decision rights, handovers and escalation paths across architecture roles.
• Establish or refine Group and Local Architecture Review Board practices and facilitate governance sessions.
• Implement review triggers, delegated decision routing, Architecture Decision Records (ADRs), waivers and exception management.
• Ensure architecture alignment with digital platform guardrails and translate them into practical guidance for delivery teams.
• Embed architecture into portfolio and funding, demand intake, project and product delivery, security, risk, data, integration and technology selection processes.
• Establish a proportionate architecture engagement model based on criticality, complexity, risk and cross-entity impact.
• Define a minimum viable architecture artefact set with clear ownership, approval routes, versioning and review triggers.
• Coach architecture roles, establish an Architecture Community and facilitate focused working groups.
• Define KPIs covering adoption, decision effectiveness, delivery enablement, reuse, compliance, risk and stakeholder value.
• Drive alignment across teams, resolve ambiguity and ensure agreed architecture decisions are implemented.

Skills

Enterprise Architecture

Architecture governance

ARB facilitation

ADR/waivers management

Stakeholder management

ITIL/TOGAF/ArchiMate

English fluency

Job description

NISH Tech BV is seeking an experienced Enterprise Architect to lead the federated IT Target Operating Model across Brussels and Berlin, aligning architecture governance with delivery, security, data and vendor processes.

You will establish ARB practices, define ADRs, drive architecture KPIs, coach teams and embed architecture into portfolio, funding, and projects, while ensuring measurable results.