AISB-1055 Senior Audit & Transformation Architect

Abakus IT-Solutions; Namen; Hybrid; EUR 90,000 - 120,000; Full time

Job summary

Abakus IT-Solutions seeks a Senior Audit & Transformation Architect to lead audits of complex application landscapes within a public context. You will define target architectures, assess risks, and develop transformation trajectories to reduce technical debt and improve resilience, security and maintainability.

The role requires extensive experience in governance, presenting options to decision bodies and steering modernization initiatives across cross‑functional teams in a hybrid Namur setting.

Qualifications

• Master's degree in computer science or equivalent professional experience.
• At least ten years of relevant experience in application architecture.
• At least three significant missions in architecture audit, technical debt diagnostics or transformation of complex systems.
• Proven experience in defining modernisation trajectories and presenting them to decision bodies.
• Experience in challenging providers, evaluating solutions and following up on recommendations.
• Experience in a public or regulated environment, or one of comparable complexity.
• French: C2 level

Responsibilities

• Carry out technical and architectural audits of existing solutions, solutions under development or solutions proposed by providers.
• Produce objective diagnostics on technical debt, critical dependencies, structural limits, performance, resilience, security, maintainability and operability.
• Assess the alignment of architectures with business objectives, regulatory constraints and the organisation's architecture principles.
• Identify and prioritise architectural risks and their business, technical, budgetary and operational impacts.
• Define target architectures, transformation scenarios and migration or modernisation trajectories.
• Carry out impact, opportunity and risk analyses to support governance decisions.
• Challenge the choices and estimates proposed by external providers.
• Lead or contribute to architecture reviews and formalise decisions, conditions, reservations and action plans.
• Support teams in implementing recommendations and verify that they are actually applied.
• Measure results and adapt recommendations when findings, constraints or priorities change.
• Contribute to the analysis of complex technical incidents when their causes may be architectural.
• Present options, trade-offs, risks, costs and consequences clearly to facilitate decisions.
• Audit and architecture diagnostic reports (findings, evidence, risks, prioritised recommendations).
• Maps of components, flows, dependencies, obsolescence and risks.
• Existing and target architecture documentation.
• Modernisation roadmaps, migration trajectories and technical debt reduction plans.
• Documented architecture decisions, technical opinions and review minutes.
• Action plans with priorities, responsibilities, success conditions and verification criteria.

Skills

Technical debt analysis

Architectural risks

Modernisation strategy

Microservices/ SOA/ API

Architectural governance

Decision support

Stakeholder communication

Education

Master's degree in Computer Science

Tools

Java

Jakarta EE

Spring Boot

UML

ArchiMate

Job description

AISB-1055 Senior Audit & Transformation Architect

Context and project

Within the IT department of a public organisation, the role covers the audit and transformation of a large application landscape.

The purpose is to provide independent expertise: assess the robustness, relevance and sustainability of existing or future solutions, control technical debt and architectural risks, and inform investment and transformation decisions.

Realistic, controlled trajectories are defined to improve resilience, performance, security, maintainability, operability and scalability. The role acts as a reference for management, architects, programme managers, business teams, technical teams and external partners.

Responsibilities

• Carry out technical and architectural audits of existing solutions, solutions under development or solutions proposed by providers.
• Produce objective diagnostics on technical debt, critical dependencies, structural limits, performance, resilience, security, maintainability and operability.
• Assess the alignment of architectures with business objectives, regulatory constraints and the organisation's architecture principles.
• Identify and prioritise architectural risks and their business, technical, budgetary and operational impacts.
• Define target architectures, transformation scenarios and migration or modernisation trajectories.
• Carry out impact, opportunity and risk analyses to support governance decisions.
• Challenge the choices and estimates proposed by external providers.
• Lead or contribute to architecture reviews and formalise decisions, conditions, reservations and action plans.
• Support teams in implementing recommendations and verify that they are actually applied.
• Measure results and adapt recommendations when findings, constraints or priorities change.
• Contribute to the analysis of complex technical incidents when their causes may be architectural.
• Present options, trade-offs, risks, costs and consequences clearly to facilitate decisions.
• Audit and architecture diagnostic reports (findings, evidence, risks, prioritised recommendations).
• Maps of components, flows, dependencies, obsolescence and risks.
• Existing and target architecture documentation.
• Modernisation roadmaps, migration trajectories and technical debt reduction plans.
• Documented architecture decisions, technical opinions and review minutes.
• Action plans with priorities, responsibilities, success conditions and verification criteria.

Education and experience

• Master's degree in computer science or equivalent professional experience.
• At least ten years of relevant experience in application architecture, including several years in audit, transformation or architecture governance.
• At least three significant missions in architecture audit, technical debt diagnostics or transformation of complex systems.
• Proven experience in defining modernisation trajectories and presenting them to decision bodies.
• Experience in challenging providers, evaluating solutions and following up on recommendations.
• Experience in a public or regulated environment, or one of comparable complexity.

Technical skills

Required

• Analysis of technical debt, architectural risks and critical dependencies
• Transformation, modernisation and rationalisation architecture for application landscapes
• Distributed architecture: microservices, SOA, API, integration and event-driven architectures
• Audit of complex application architectures and objective diagnostics
• Definition of target architectures, transformation scenarios and migration trajectories
• Diagnostics of performance, resilience, security, maintainability and operability
• Architecture governance, review facilitation and decision support

Required

• Enterprise Java environments: Java, Jakarta EE/JEE, Spring Boot and web services
• Architecture modelling: UML, ArchiMate or equivalent

Nice to have

• Containerisation, orchestration, CI/CD, data and complementary technologies
• Ability to distinguish structuring issues from secondary topics and to prioritise actions.
• Critical thinking, independent judgement and ability to make well-founded recommendations.
• Ability to model, outline and explain complex systems.
• Ability to present options, trade-offs, risks and costs to technical and non-technical audiences.Ability to challenge constructively and build buy-in around architecture decisions.
• Business, solution and results orientation.
• Rigour, autonomy, method and quality focus.
• Ability to work in a multidisciplinary environment and to handle several requests at once.

Languages

• French: C2 level

Location and conditions

• Location: Namur, hybrid.
• On-site presence: at least 60% of the time, more if needed.