IT Architecture Team Lead & Transition Manager

NISH Technologies; Brussel; On-site; EUR 90,000 - 120,000; Full time

Job summary

NISH Tech BV, a Belgium-based IT consulting firm, is seeking an experienced Team Leader & Transition Manager to drive a major architecture and operating-model transformation for a European Energy & Utilities client. You will lead Solution Architects, drive transition plans, and ensure governance and delivery continuity across Product, Architecture and Delivery functions.

The role requires 10+ years in transition management, strong IT architecture background, and proficiency in Dutch and/or

Qualifications

• More than 10 years of transition management and project management experience.
• Strong IT architecture experience.
• Experience with IT processes and methodologies.
• TOGAF and ArchiMate knowledge.
• Cloud-native architecture patterns.
• Microservices and event-driven architectures.
• Reference architecture advocacy.
• Strong stakeholder engagement and collaboration.
• Strong presentation skills.
• Experience with architecture modelling tools.

Responsibilities

• Lead and support Solution Architects across multiple digital initiatives.
• Manage architecture resource requests and assignments.
• Contribute to IT architecture governance and decision-making frameworks.
• Clarify roles and responsibilities across Product, Architecture and Delivery functions.
• Drive and monitor transition plans.
• Support operating-model transformation and organizational change.
• Identify and remove organizational, process and stakeholder blockers.
• Facilitate collaboration between architecture and product teams.
• Establish standardized architecture deliverables and quality controls.
• Monitor operational architecture activities, alerts and issues.
• Translate strategic architecture vision into operational actions.
• Provide progress updates and recommendations to leadership.
• Promote collaboration, team cohesion and effective ways of working.
• Support enterprise architecture activities and governance.
• Ensure delivery continuity throughout the transition.

Skills

Transition management

Project management

IT architecture

TOGAF

ArchiMate

Cloud-native

Microservices

Event-driven architectures

Stakeholder engagement

Presentation skills

Architecture modelling tools

Dutch/French/English

Tools

Sparx Enterprise Architect

Job description

About the Role

NISH Tech BV is looking for an experienced Team Leader & Transition Manager to support a major European Energy & Utilities organization through an important architecture and operating-model transformation.

You will lead and support Solution Architects while contributing to enterprise architecture governance, transition planning and organizational transformation. The role combines people leadership, architecture governance, stakeholder management and hands‑on transformation execution.

You will help establish effective ways of working, strengthen collaboration between architecture and product functions, remove organizational blockers and ensure delivery continuity. Strong knowledge of IT architecture frameworks, cloud-native patterns and modern architecture practices is essential.

Key Responsibilities

• Lead and support Solution Architects across multiple digital initiatives.
• Manage architecture resource requests and assignments.
• Contribute to IT architecture governance and decision-making frameworks.
• Clarify roles and responsibilities across Product, Architecture and Delivery functions.
• Drive and monitor transition plans.
• Support operating-model transformation and organizational change.
• Identify and remove organizational, process and stakeholder blockers.
• Facilitate collaboration between architecture and product teams.
• Establish standardized architecture deliverables and quality controls.
• Monitor operational architecture activities, alerts and issues.
• Translate strategic architecture vision into operational actions.
• Provide progress updates and recommendations to leadership.
• Promote collaboration, team cohesion and effective ways of working.
• Support enterprise architecture activities and governance.
• Ensure delivery continuity throughout the transition.

Required Skills

Mandatory Skills

• More than 10 years of experience in transition management and project management.
• Strong IT architecture experience.
• Experience with IT processes and methodologies.
• TOGAF and ArchiMate knowledge.
• Cloud-native architecture patterns.
• Microservices and event-driven architectures.
• Reference architecture advocacy.
• Strong stakeholder engagement and collaboration.
• Strong presentation skills.
• Experience with architecture modelling tools such as Sparx Enterprise Architect or equivalent.
• Good level of Dutch and/or French and English.

Nice-to-Have Skills

• Energy & Utilities sector experience.
• Experience with mergers and organizational transformations.
• Gartner Architecture Frameworks, including TIME/APM concepts.
• Domain-Driven Design.
• ITIL.
• Real-world experience architecting and delivering IT products in Agile environments.

Experience

More than 10 years of transition management and project management experience is required.

Languages

• English
• Dutch and/or French

About NISH Tech BV

NISH Tech BV is a Belgium-based IT consulting and technology services company connecting experienced technology professionals with challenging opportunities across Europe. We focus on delivering skilled IT talent across architecture, cloud, software engineering, cybersecurity, data and digital transformation.