ruby English-speaking jobs in Belgian Luxembourg

We are looking for a Senior Finance Consultant focused on Accounting, Controlling, Treasury and FP&A. Specialized in financial consulting, our clients range from startups/scaleups, SME’s to big corporations within various sectors (manufacturing, services, SaaS, retail, etc. ).

Experienced Chief Information Security Officer needed to plan and execute security processes and management systems. Responsible for security roadmap, monitoring posture, and owning security governance.

Experienced .NET Software Engineer for a consultancy mission. Develop high-quality software in an agile environment, contributing to digital transformation. Skills include .Net C#, Agile/Scrum, AI-assisted development, and CI/CD.

Experienced Technical Lead needed to support a migration initiative. This role requires end-to-end technical ownership, hands-on coding, and guiding the development team using .NET expertise.

Senior Finance & Performance Manager to advise clients on optimizing finance functions, accounting processes, and Enterprise Performance Management. Requires 10+ years of experience in large corporations, consulting/audit exposure, and project management experience.

Head of Sales to build and scale the Workplace & Hospitality Solutions Business Unit across Europe. This role requires a commercial leader with GTM instincts to define strategy, win key accounts, and drive revenue growth from scratch.

Experienced leader to oversee and consolidate a specialized insurance advisory firm's activities. Develop and implement commercial and strategic priorities, lead client relationships, and drive business development.

Senior Product Manager to lead SaaS product strategy and execution for an API-first platform. Own the end-to-end lifecycle, driving Product Led Growth and collaborating cross-functionally.

Senior Embedded Software Engineer to design and develop autonomous countermeasures. Requires experience with Embedded Linux, bare-metal/RTOS on MCUs, C/C++, Python, and system design.

Develop an organization-wide architectural vision to ensure secure and sustainable digitalization. Define security standards, implement best practices, and embed security by design into digital solutions. Requires 5+ years in security/software architecture.

Sales Assistant needed for Pampling&Co store. Responsibilities include advising customers, handling inquiries, processing payments, and supporting inventory. Requires previous customer service experience and good English.

Own the end-to-end story for an Enterprise Orchestration Platform. Build positioning, value propositions, and sales enablement from the market, driving pipeline through customer interviews and deal support.

Tether Evolution: At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways. Why Join Us? Our team is a global talent powerhouse, working remotely from every corner of the world.

Experienced Project Manager needed for Business Process Optimisation within a global financial services Transformation Office. Own end-to-end transformation projects, analysing and redesigning processes to improve efficiency. Requires 5+ years in project management and process optimisation.

About Mercier Consultancy Group Mercier Consultancy Group is a premier international staffing firm, recognized as a leader in European recruitment and bespoke BPO solutions. We bridge the gap between world-class talent and industry-leading corporations, specializing in high-impact Dutch-speaking jobs that offer career acceleration and personal growth.

Junior VAT Consultant provides VAT compliance services to corporate clients. Responsibilities include preparing returns, advising on VAT matters, and assisting with tax audits. Requires a degree in a related field and fluency in English and French.

Lead and scale a team of 40+ in the AI Business Unit, setting strategic direction and owning unit P&L. Requires 8+ years experience, strong data/AI grounding, and fluency in Dutch/French and English.

Data Scientist (GenAi) role requires a Master's in CS/AI/DataScience and 3+ years developing industrial, agentic systems. Must have experience with custom GenAI applications and strong Python skills.

Support multinational groups in aligning their tax strategies with global business objectives. Provide advisory services on international tax matters, including OECD Pillar 1 & 2, EU Anti-Tax Avoidance Directives, and international tax reporting standards.

Provides executive and governance support to the CEO, including preparing meetings, drafting materials, and coordinating with stakeholders. Manages business oversight, tracks action points, and supports strategic content and communication.