Lead enterprise architect

Mission Overview:

Keystone Solutions is seeking a Lead Enterprise Architect for a consultancy mission at a client site. This role is pivotal in ensuring alignment between operational needs and the technological solutions implemented as part of a digital transformation initiative.

Main Responsibilities:

• Ensure alignment between business needs and IT solutions.
• Design architectures and technical solutions.
• Collaborate with business and IT stakeholders.
• Formalize needs into functional and technical requirements.
• Propose pragmatic recommendations and solutions.
• Define architecture standards.
• Ensure documentation of solutions.
• Participate in the validation of deliverables.

Specific Tasks and Responsibilities:

• Define and implement the digitalization strategy.
• Develop and maintain an enterprise architecture framework.
• Establish architecture governance (committees, validation processes).
• Develop a multi-year digital transformation roadmap.
• Coordinate architecture activities within strategic programs.
• Lead architecture boards and ensure coherence in decisions.
• Contribute to a coherent and secure cloud strategy.
• Drive initiatives related to cybersecurity (IAM, asset management, NIS2).
• Support the transformation of infrastructures towards new models (e.g., greenfield).
• Oversee the inventory and rationalization of the application portfolio.
• Ensure coherence between legacy systems and new solutions.
• Provide coaching to architects and project teams.
• Offer strategic advice to management.
• Contribute to the definition of capability maps and reference architectures.

Profile Requirements:

Education and Experience:

• Degree in computer science or equivalent experience.
• Minimum of 10 years of experience in complex IT projects.
• Experience in architecture and digital transformation.
• Asset: experience with the public sector (ministries, European institutions, etc.).

Technical Skills:

• Mastery of IT architecture principles (TOGAF is an asset).
• Knowledge of modeling methods (BPMN, UML, Archimate).
• Understanding of the application development lifecycle.
• Knowledge of microservices and application integration.
• Skills in data management and infrastructures.

Behavioral Skills:

• Results-oriented.
• Analytical and synthesis mindset.
• Ability to work transversally.
• Excellent communication skills.
• Autonomy and proactivity.

As a consultant at Keystone Solutions, you will engage in dynamic projects that offer turbo-charged learning opportunities and a commitment to your career growth. Being a

If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at .

Duration: 15/07/2026 - 30/06/2027 12 months • (full time)

Skills required:

• Archimate - Level: Expert - Most recent: Any time
• Business Process Modelling Notation (BPMN) - Level: Expert - Most recent: Any time
• Data & Services Architecture - Level: Expert - Most recent: Any time
• Enterprise Architect - Level: Expert - Most recent: Any time
• Microservices - Level: Expert - Most recent: Any time
• Systems Development Lifecycle - Level: Expert - Most recent: Any time
• UML - Level: Expert - Most recent: Any time

Language requirements:

Dutch or French
Level Native
English
Level Active knowledge