java English-speaking jobs in Mons

The Vice President of Engineering - Life Sciences will define and lead the global engineering strategy for N-SIDE's Life Sciences software portfolio. This role reports to the Managing Director Life Sciences and will shape N-SIDE's technical direction, ensuring scalable, secure, and high-quality solutions. The VP will lead a high-performing Engineering organization and foster a culture of accountability, collaboration, and continuous improvement.

The European External Action Service (EEAS) seeks a Temporary Agent (AST2) to provide administrative support to the Managing Director's office. Responsibilities include managing budgets, processing mission orders, coordinating parliamentary questions, and handling document management. Candidates must have a post-secondary education with 3 years of relevant experience or secondary education with 6 years of experience. Fluency in English and Spanish is required, with knowledge of French preferred.

Legal Officer, contract agent responsible for legal analysis/advice on procurement. Responsibilities include analyzing operational, procurement, and contractual consequences of EU delegation modernization reform, providing legal support on procurement, and ensuring business continuity. Must have a completed University degree of at least three years in Law, minimum two years of professional experience providing legal analysis/advice on contractual and/or procurement matters, and strong knowledge of the EU Financial Regulation for procurement management in EU Delegations. Must be fluent in English and French.

Senior Software Engineer with 7+ years of experience, including 5+ years in React Native for mobile app development. Expertise in UI design, performance optimization, and mobile integrations. Strong understanding of web technologies, backend systems, and testing methodologies.

As Customs & Logistics Senior Business Analyst, you will drive operational excellence across customs and logistics functions in the EMEA region. You will map and document current-state processes, design future-state processes aligned with D365, and collaborate with stakeholders to ensure successful ERP implementation. You will also analyze and improve logistics flows, identify cost-saving opportunities, and lead cross-functional projects.

Provides strategic advisory, advocacy support, and external relationship management for ONE's EU Multiannual Financial Framework (MFF) advocacy efforts in Poland.

Software Development Engineer will contribute to the development of future products, including building proofs of concept, designing technical solutions, and ensuring software quality and sustainability.

Senior Media Manager to lead and define paid media strategies for ING products in Belgium. Manage campaign execution, performance analysis, and optimization. Collaborate with media agencies and internal stakeholders. Requires 7-10 years of experience in media strategy and campaign management. Strong data analysis and communication skills.

Freelance Data Architect needed for a greenfield project setting up a regional IT department. Responsibilities include inventorying and assessing data assets, establishing data governance, recommending an analytics architecture aligned with Microsoft Azure/M365, and delivering initial analytical wins. Requires 7+ years of experience in data architecture, data engineering, or senior data/BI roles.

Data Scientist needed for a client in Brussels. Design, implement, and optimize AI, NLP, and ML models using LLMs, RAG frameworks, and Python. Experience with deep learning frameworks (TensorFlow, PyTorch) and pre-trained models (GPT) required.

Leads security governance for Orange Belgium, defining and maintaining the security policy framework, ensuring compliance with ISO 27001, ISO 22301, GDPR, NIS2, and DORA. Responsible for business continuity management, risk analysis, security awareness, and team leadership. Requires a Master's degree in a relevant field, 8+ years of experience in IT/Telco security/governance, and fluency in English and French or Dutch. A positive security advice from the National Security Authority is required.

Senior Middle Officer to reinforce the Middle Office team within the Finance Power department. Responsibilities include following and validating the P&L, preparing reports, proposing process enhancements, and participating in projects. Requires a degree in applied economics or finance, minimum 7 years experience, fluency in English and French, and knowledge of trading systems, information management, and energy markets.

The MEAL Officer supports Eurodad's Monitoring, Evaluation, Accountability and Learning (MEAL) work across the organization, focusing on EC-funded projects. The role ensures project data is collected, consolidated, and used for reporting, learning, and organizational improvement.

Head of Sales will lead sales strategy and manage a team across all markets (Pharma, Cosmetics, etc.). Responsibilities include developing and executing sales strategies, managing customer relationships, and leading a team of sales managers. Requires a master's degree in a relevant field, 10+ years of B2B sales experience, and fluency in English.

Oversees, shapes, and manages financial, liquidity, ALM, and hedging risks within Athora Belgium. Guides the company in best practices and appetite setting. Reviews internal controls related to financial risks and supports proactive risk optimization.

Software Defined Data Center Consultant will assist clients in transitioning to modern, efficient software-defined environments. Requires expertise in VMware technologies (vSphere, vSAN, Aria Operations, NSX) and Hyper-Converged Infrastructure (HCI). Must possess architectural skills related to SDDC and hold active VMware certifications.

Senior Back-End Java Developer needed for a large Belgian enterprise. Develop and maintain scalable back-end services using Java and Spring framework. Collaborate with cross-functional teams and integrate external systems via RESTful APIs. Minimum 6 years of Java development experience required.

Scrum Master Expert Consultant needed for client site consultancy. Set up and facilitate Scrum ceremonies, support Product Owner, and coach agile teams. 7+ years of experience as a Scrum Master or similar role required. Expert knowledge of agile methodology and techniques.

Drive end-to-end SuccessFactors implementations for clients, translating HR challenges into digital solutions. Act as a trusted advisor, guiding clients toward best-practice processes. Coach and uplift fellow consultants, sharing expertise and contributing to the SuccessFactors support community.

Senior Mould Engineer to lead and innovate in production process optimization and advanced solution implementation. Responsibilities include project coordination, technical expertise, issue resolution, and staying abreast of industry advancements. Requires 3-5 years of experience in injection moulding and proficiency in English. Dutch language skills are a plus.