Architecte Senior Audit & Transformation

Rhox; Namen; On-site; EUR 90,000 - 120,000; Full time

Job summary

Rhox in Belgium is seeking a senior application architect to audit complex systems and define realistic modernization roadmaps for enterprise Java architectures.

You will diagnose technical debt, identify architectural risks, and guide transformation decisions across multidisciplinary teams, ensuring compliance in regulated environments.

Qualifications

• Ten+ years in application architecture, incl. audit or governance.
• At least three significant assignments auditing architectures, diagnosing technical debt or transformation.
• Experience presenting modernisation roadmaps to decision-makers.
• Experience in public, regulated or comparably complex environments.
• Fluent French, B2 level.

Responsibilities

• Audit existing, in-development and proposed solutions against business and regulatory requirements.
• Diagnose technical debt, critical dependencies and architectural risks.
• Define target architectures, transformation scenarios and migration roadmaps.
• Produce evidence-based audit reports and maps of components and dependencies.
• Lead architecture reviews and challenge suppliers' choices and estimates.
• Track recommendations through implementation and measure their results.

Skills

Enterprise Java

Audit & governance

Transformation roadmaps

Architectural governance

Microservices

SOA & APIs

UML/ArchiMate

Regulated environments

Decision-maker presentation

French language (B2)

Tools

Java/Jakarta EE

Spring Boot

UML

ArchiMate

CI/CD

Containers & Orchestration

Job description

We're looking for a senior application architect to audit complex systems and define realistic application modernisation roadmaps. You'll assess enterprise Java architectures, identify technical debt and guide transformation decisions.

What you'll do

• Audit existing, in-development and proposed solutions against business and regulatory requirements.
• Diagnose technical debt, critical dependencies and architectural risks.
• Define target architectures, transformation scenarios and migration roadmaps.
• Produce evidence-based audit reports and maps of components and dependencies.
• Lead architecture reviews and challenge suppliers' choices and estimates.
• Track recommendations through implementation and measure their results.

What you bring

• At least ten years of experience in application architecture, including several in audit, transformation or architectural governance.
• At least three significant assignments auditing architectures, diagnosing technical debt or transforming complex systems.
• Experience presenting modernisation roadmaps to decision-makers, evaluating solutions and following up recommendations.
• Experience in public, regulated or comparably complex environments.
• Enterprise Java skills: Java, Jakarta EE/JEE, Spring Boot and web services.
• Distributed architectures: microservices, SOA, APIs, integration and event-driven architectures.
• Knowledge of containerisation, orchestration, CI/CD and data technologies.
• Architecture modelling with UML, ArchiMate or equivalent.
• Ability to assess performance, resilience, security, maintainability, operability and scalability.
• Skills in modernising and rationalising application portfolios.
• Independent judgement and evidence-based recommendations, with clear explanations of options, trade-offs, risks and costs.
• Ability to prioritise structural issues and handle competing requests across multidisciplinary teams.
• French, B2.

Good to know

• Selection includes a written audit and transformation case study, followed by an interview.