Senior Application Architect – Microservices Audit Lead

About the role

We are looking for a Senior Application Architect to lead an independent technical audit of a large‑scale Java/Spring Boot microservices platform. The role will focus on assessing architecture quality, performance, resilience and operational risks in a business‑critical environment.

Key responsibilities

• Conduct a comprehensive audit of a distributed Java/Spring Boot microservices ecosystem, covering both transactional and batch workloads.
• Evaluate microservice boundaries, service interactions, and architectural decisions.
• Analyse event‑driven patterns, Kafka messaging, outbox/inbox mechanisms and idempotency.
• Review PostgreSQL data models, performance, replication and reporting architectures.
• Assess resilience, observability, monitoring, logging, traceability and incident recovery capabilities.
• Identify technical debt, performance bottlenecks and operational risks, and propose mitigation strategies.
• Produce executive‑level reports, risk assessments and a prioritized recommendation roadmap.
• Present findings to governance bodies and senior leadership.

Required profile

• Extensive experience leading complex architecture audit engagements.
• Deep expertise in Java, Spring Boot and large‑scale microservices architectures.
• Proven knowledge of event‑driven systems, Kafka and distributed consistency patterns.
• Strong understanding of PostgreSQL, API integrations (REST/SOAP), batch processing and containerised environments.
• Excellent analytical, communication and executive presentation skills.
• Fluent French (C2 level) and able to work on‑site in Namur (≈30% presence).

Required skills

• Java
• Spring Boot
• Kafka
• PostgreSQL
• REST
• SOAP
• Docker
• Kubernetes