#### About the job Senior Application Architect

Java / Angular Application Architect (Senior / Expert) -- Secondment Assignment
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**Location:** Brussels region (hybrid working model)

**Contract type:** Secondment (freelance or employment via our organization)

**Start date:** To be agreed

**Duration:** As soon as possible 9 months (full time) - 31/12/2026

About the role
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We are currently seeking a highly experienced **Application Architect (Java / Angular)** for a long-term secondment assignment within a complex enterprise environment.

The selected professional will be deployed at one of our clients and will work as part of an established development organization. The role combines **technical architecture design, hands-on engineering expertise, and leadership of development teams**.

The engagement can be fulfilled either as an **independent freelancer** or as an **employee within our organization**, working under a staffing/secondment model.

Responsibilities
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* Design and evolve enterprise-grade application architectures
* Translate business requirements into scalable and maintainable technical solutions
* Lead and support Java development teams in day-to-day delivery
* Define technical standards and ensure adherence through code reviews
* Improve existing systems and propose architectural enhancements
* Collaborate within Agile/Scrum teams in a complex IT landscape
* Contribute to system integration and domain-driven design approaches

Technical requirements
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The ideal candidate has strong and proven experience in:

* Java EE / Jakarta EE (expert level, 10 years)
* SQL / RDBMS / JPA (expert level, 10 years)
* REST APIs (8 years)
* Spring / Spring Boot (5 years)
* Angular (5 years)
* OAuth / security implementations (3 years)
* Kafka (or similar event-driven technologies)
* PostgreSQL or other relational databases
* Agile / Scrum methodologies (Jira)

Architecture \& leadership skills
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* Strong experience in enterprise application architecture
* Knowledge of Hexagonal Architecture (Ports \& Adapters)
* Ability to define and enforce technical standards
* Experience leading and mentoring development teams
* Strong analytical and abstraction capabilities
* Ability to align technical solutions with business domains

Languages
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* English: fluent (working language)
* Dutch: passive understanding required
* French: passive or good level required

Profile
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* 10 years of experience in Java enterprise environments
* Proven experience as Lead Developer, Tech Lead, or Application Architect
* Strong communication skills in both technical and business contexts
* Able to integrate quickly into existing teams and structures
* Proactive, structured, and solution-oriented mindset

Practical information
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* Hybrid working model (Brussels region)
* Long-term assignment with strong stability
* Assignment delivered via secondment (staffing model)
* Candidate can be engaged as a freelancer or as an internal employee
* **Important:** Belgian nationality required due to project constraints

Interested?
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Are you an experienced Application Architect who enjoys working in complex enterprise environments and taking technical ownership within development teams?