1745 English-speaking jobs in Brussels

Senior Data Architect needed to define data structure, build business information models, and improve data flows. Requires 5+ years of experience in data architecture, data modeling, and enterprise information management.

Lead and stabilize IT operations in a complex, multi-vendor environment. Drive incident management, root-cause elimination, and IT operating model evolution. Manage external IT suppliers, ensure compliance with regulations, and support public procurement processes.

Lead Enterprise Architect needed to define and evolve architecture governance, lead the Architecture Review Board, and translate platform guardrails into actionable guidance.

Build and deploy AI-powered features (LLMs, ML models) in production. Design robust backend systems and pipelines for AI workloads. Turn ambiguous use cases into working AI solutions with clear performance metrics.

Senior Business Analyst to support digital transformation initiatives within European Institutions. Analyze, define, and validate business requirements for large-scale IT systems. Translate complex requirements into structured documentation and support the delivery of digital solutions. Minimum 13 years of professional experience, including at least 10 years in functional analysis.

Provides operational support for the full lifecycle of medical grants, sponsorships, and external funding. Manages day-to-day activities including intake, review, contracting, payments, and close-out. Coordinates with internal and external stakeholders to ensure smooth processes and compliance.

D'Ieteren Group seeks a master's student for a 6-month investment internship starting July 2026. The role involves conducting market research, analyzing investment opportunities, and supporting portfolio management.

Senior Application Security expert to guide a Center of Excellence, lead tooling migrations (Invicti, Sonatype), and support secure development practices in a complex, international environment.

Experienced Project Manager (Mechanical Bias) to lead data center projects, focusing on data hall fit-out. Oversee MEP packages, manage budgets and timelines, and ensure compliance with safety regulations. Proven experience in data center construction, particularly fit-out and commissioning phases.

Recent graduates will support the Public Affairs team at MedTech Europe, the European trade association for the medical technology sector. The intern will research EU policy developments, track events, and contribute to industry positions and communications.

Business Development Manager to drive new business and expand market share across European Ministries of Defence, NATO, and the Defence Industrial Base. Proven experience in selling SaaS/complex software solutions within the defence sector required. Strong understanding of MoD/NATO procurement frameworks and defence acquisition processes.

Designs, implements, and optimizes AI, NLP, and ML models using LLMs, RAG frameworks, and state-of-the-art architectures. Develops methods for tokenization, NER, classification, and clustering, including fine-tuning pre-trained models. Conducts research on AI/ML trends and collaborates with teams to embed AI solutions. Leads experimentation and A/B testing to improve model performance. Creates reports and visual insights to communicate findings.

Cybersecurity professional with 10+ years experience leading enterprise security or risk programs in regulated environments. Proven ability to translate regulations into actionable security roadmaps and drive measurable risk reduction. Strong stakeholder engagement and execution skills.

Lead Java software engineer to modernize legacy systems, improve scalability and performance, and design APIs. Requires 10+ years of experience in Java (Spring ecosystem), distributed systems, and relational databases.

Design and develop cloud-native microservices using Java, Spring Boot, and Kafka. Implement event-driven integrations and apply Event Sourcing and CQRS.

Machine Learning Engineer to design, build, and deploy scalable machine learning models for marketing initiatives. Requires Python proficiency, GCP experience, and BigQuery expertise.

Experienced Project Manager needed for a 12-month contract to lead digital initiatives within a Location-Based Solutions program focused on smart mobility.

IT Business Analyst to define and shape a new strategic domain focused on Network APIs and customer-facing functions. Translate technical concepts into functional requirements and collaborate with developers, architects, and customer experience teams to design and deliver key capabilities.

Salesforce Technical Architect needed to design and lead complex Salesforce solutions. Requires fluency in English, French and/or Dutch, Salesforce Certified Technical Architect or equivalent certifications, and 8+ years of experience in Salesforce architecture and technical leadership.

Experienced Project Manager needed for major data center projects (~€20m). Lead projects from start to finish, manage budgets, subcontractors, and client relationships. Proven experience in data center construction and multi-package delivery required.