Workflow Management Architect, Brussels

Position: Workflow Management Architect.

Location: Near-site (Brussels).

Rate: 480€/day.

Language: Services will be provided in English. Consultants must have at least a C1 level, in accordance with the Common European Framework of Reference for Languages (CEFR).

Minimum post-secundary education required: At least 5 years of studies attested by a diploma.

Minimum professional experience required: a minimum of 3 years postsecondary professional experience.

Responsibilities

• Maintain and evolve the existing workflow engines Activiti and Camunda, ensuring operational stability and continuity.
• Implement functional enhancements, technical migrations, performance improvements and corrective changes related to workflow management components.
• Ensure backward compatibility with the legacy workflow management system Compass Green.
• Develop, integrate and test new features based on provided specifications.
• Perform root cause analysis of production incidents and deliver code-level fixes.
• Address technical debt through code refactoring, library upgrades and SQL optimization.
• Develop automated unit and integration tests to safeguard platform stability.
• Prepare deployment packages and support integration into production environments.
• Participate in PI Planning, Sprint Planning, Daily Stand-ups, Sprint Reviews and Retrospectives.
• Refine technical backlog items and contribute to technical implementation planning.
• Present completed functional and technical changes during sprint and PI demonstrations.
• Participate in technical alignment meetings, architecture synchronizations and stakeholder update.

Specific knowledge, skills and expertise

Frontend development

• Proficiency in HTML5, Javascript/TypeScript, CSS3 and SASS.
• Proficiency in Angular, including modern concepts like Signals.
• Good knowledge of building complex, modular client-side applications using modern. frameworks, Web Components, micro frontends and state management patterns.
• Experience in Web security, authentication and authorization protocols (OpenID Connect, JWT).
• Experience with responsive and adaptive design.
• Experience with leveraging Content Delivery Networks (CDNs) like AWS CloudFront to optimize asset delivery and improve application performance.
• Understanding key design principles.
• Understanding API integration patterns (consuming REST APIs, error handling, caching strategies).
• Experience with dynamic UI component integration patterns (loading, event communication).

Backend development

• Proficiency in back-end languages (Java) and experience with frameworks (Spring Boot, JPA/Hibernate, Axon).
• Experience with legacy JEE application servers and technology standards and implementations (WebLogic 14, JAXRS, JAXWS, JAXB, EJB, JMS).
• Experience in designing, building, automating, and securing RESTful APIs and web services, including OpenAPI/Swagger documentation.
• Experience with API management technologies (Consul, API Gateways, CAPI Gateway)
• Knowledge of cloud services (e.g., AWS) and experience with deploying and managing applications in a cloud environment.
• Understanding authentication and authorization protocols and standards (e.g., OpenID Connect, JWT, Client/Server Certificate).
• Experience with leveraging AI agent technologies during development but also integrated with applications (MCP, Skills, AmazonQ/Kiro, Spec Driven development, context engineering).
• Experience with workflow engine integration (Activiti, Camunda).

Database & Persistence

• Proficiency in working with relational databases (e.g., PostgreSQL, Oracle, H2DB), including writing complex SQL queries and understanding database design.
• Experience with NoSQL document stores (ElasticSearch, Redis) and understanding of consistency/performance trade-offs.

Architecture

• Experience with cloud-native event-driven micro-service architecture principles and design patterns like CQRS, Saga’s.
• Experience with messaging solutions based on JMS and Kafka.
• Strong understanding of the web development cycle and programming techniques and tolos.
• Experience with containerization and orchestration technologies (e.g., Docker, Kubernetes) for developing, deploying, monitoring and troubleshooting applications.

DevOps & Infrastructure

• Experience with development and DevSecOps tooling, including version control (Git), Git workflows (GitFlow), and Understanding of CI/CD pipelines (GitLab).
• Experience with collaboration tools: issue tracking (Jira) and documentation (Confluence).
• Experience