javascript English-speaking jobs in Aarschot

Senior Backend Software Engineer to design, implement, and maintain a Ruby on Rails-based platform. Lead technical direction, mentor peers, and collaborate with product teams to solve user and business problems.

eTeacher Group seeks French & English native speakers for a full-time freelance sales representative role. Present, promote, and sell online courses to prospective customers via phone and email. Proven sales experience and exceptional communication skills are required.

Senior Sales Account Manager to drive business expansion with EU Agencies and EC-funded programs. Develop and execute sales plans, identify opportunities, and build relationships with key stakeholders. Requires 5+ years of experience selling IT services to EU Agencies and a deep understanding of procurement mechanisms.

The Laboratory Technician will perform routine analytical and laboratory testing for food safety, quality, and operational teams. Responsibilities include conducting tests, documenting results, and communicating findings.

Leads the design, implementation, and management of a global job grading methodology. Oversees the Annual Salary Review process in Workday, develops salary structures, and analyzes compensation data. Manages compensation benchmarking and advises on compensation strategy.

Senior Project Manager will plan, implement, and manage complex projects, including cost and quality management, stakeholder coordination, and team leadership. Requires a recognized project management qualification (e.g., Prince2 Practitioner, MSP) and experience in IT implementation projects, procurement, and supplier management.

As a Sales Account Manager, you will increase sales within an existing territory by providing training, services, and demonstrations to customers. You will also cold call and prospect for new accounts.

Deloitte seeks creative problem solvers to join its tax consulting team. You will advise clients on a range of tax matters, including corporate, personal, employment, VAT, and indirect tax. Work with large multinational enterprises or SMEs.

Stranger Soccer seeks a passionate football entrepreneur to open and operate their business in Brussels. Responsibilities include bringing the brand to life, recruiting and leading a team, securing game venues, and overseeing game schedules. Ideal candidates have a business background, entrepreneurial spirit, and a passion for football.

As a Key Account Specialist, you will drive new customer acquisition and manage the entire sales process. You will lead technical consultations, prepare offers and negotiate contracts, and represent Kennametal at industry events.

AI/ML intern to benchmark data-driven and physics-informed approaches for steady RANS external aerodynamics. Evaluate the impact of geometric context on existing surface prediction workflows.

Provide excellent guest service, manage bookings, and process invoices. Must have hospitality experience, strong communication skills, and fluency in English.

Design, develop, and deploy backend services using Java, Spring Boot, Python, and cloud platforms (AWS or Azure). Architect and implement microservices, ensuring high availability, scalability, and maintainability. Collaborate with stakeholders to define system requirements and provide technical solutions.

The AI Models group at imec is seeking a Machine Learning Performance Engineer to develop a framework for representing distributed AI/ML workloads and analyze their performance on different hardware architectures. The candidate will work on optimizing deep learning workloads for exascale systems and exploring emerging AI/ML algorithms for custom architectures.

Electrician-installer responsible for installing and connecting electrical and data cabling in offices and industrial buildings. Requires diploma in Electrical Installation Techniques or equivalent experience, a category B driving license, and a commitment to safety.

Penetration Tester to join the Belgian Offensive Security Team, conducting penetration tests across diverse technologies and environments. Will document technical issues, support incident response, and contribute to continuous improvement of security testing programs. Requires 5+ years of experience in penetration testing/red teaming and knowledge of penetration testing tools and methodologies. Fluency in English, French, and/or Dutch is a plus.

Build and maintain backend services and user-friendly Angular interfaces for a global case management platform. Collaborate on code reviews, backlog refinement, and sprint ceremonies. Provide application support, identify improvement opportunities, and contribute to a high-standards engineering culture.

Lead Developer (CTO) needed for fast-growing Construction Tech startup. Own the technical function, including architecture, engineering, data pipelines, and strategy. Develop and improve photogrammetry and point-cloud processing pipelines, AI/ML models for roof detection, and 3D visualization systems. Scale and own the technical architecture for a scalable SaaS platform. Hire, mentor, and lead a high-performing engineering team.

Experienced HR Manager needed to lead operational HR activities across multiple Belgium sites. This hands-on role focuses on delivering HR services, ensuring compliance, and supporting business objectives.

Senior Accounting Manager with Belgian GAAP and tax compliance experience sought. Manage full accounting cycle, ensure timely tax returns, and collaborate on digitalization projects. Strong communication and client-focused approach required.