ruby English-speaking jobs in Belgian Luxembourg

Are you looking for an internship or student job where you can make a difference? Does helping an innovative tech company reach its full potential sound like your cup of tea? And do you want to do all of this while being part of a friendly bunch of people who want to modernize the logistics world together with you?

About Dianosic Dianosic is a deeptech, clinical-stage start-up developing transformative intranasal formulations of well-established active pharmaceutical ingredients to unlock new therapeutic potential and improve patient outcomes. Our mission is to bring long-acting, cost-effective, safe, and patient-friendly therapies to the market.

We are looking for a skilled Radar Systems Engineer to design, develop and validate radar hardware and signal‐processing solutions for advanced defence and aerospace platforms. You will be part of a technical team that transforms system concepts into reliable, high‐performance radar architectures.

We are looking for a Junior Linux System Administrator ( 1-3 years of experience) to join our client, a state government agency. You will assist in managing and maintaining the infrastructure and database environments supporting our client. This is a great opportunity for someone early in their career to grow in a supportive environment and gain experience in enterprise systems.

For over 20 years, Unisensor has been a pioneer in diagnostic engineering for food safety, supporting our vision of peace of mind in food. We are recruiting a talented Development Scientist to join our R&D team for a one-year contract for our site based in the Liège Science Park.

We are Just Russel and we are on a mission to change the way we care for pets through convenience, preventive health and data-driven decisions. We want to become the leading D2C European Pet Care company that excels in customer-centricity, pet health, fun and convenience.

Energetic environment At Methis Consulting, you will join a young 85 people strong, energetic organisation, where you will have the opportunity to help companies in the energy and mobility sector and with the major challenges related to energy transition and public transport. Are you a problem-solver with a passion for analyzing complex business processes?

Artemys is a Belgian company offering recruitment services to major technical players in energy efficiency, renewable energy, sustainable development, and the circular economy.

Haulogy Nivelles, Walloon Region, Belgium Java Software Engineer (M/F/X) In the context of the energy transition and the liberalization of the energy market, Haulogy successfully contributes to the transformation goals of its clients in the energy sector by offering modular and scalable software and IT services through a long‐term partnership approach.

Are you looking for a new challenge for 2026? Then please contact me for a discussion about the role, available rates and process details. We would also be happy to hear from Applicants with demonstrable recent experience (5+ years) within the Defence Sector or Military who would be interested in obtaining Security Clearance.

Juliana Hotel Brussels is looking for a skilled and passionate Massage Therapist / Beautician to join our team. About the Role We are seeking a hospitality-minded professional who delivers exceptional guest experiences through high-quality treatments and personalized service.

Your new company Hays is looking for a Program Manager for one of its clients, a global leader in advanced software solutions for managing electrical networks and supporting the energy transition. The company operates internationally and is recognized for its innovative IT/OT systems, including SCADA-based solutions, serving national-scale electricity grid operators.

Data Warehouse at Brussels (Near site) for an International Client Location: Brussels (Near site) Language required: English (C1) MANDATORY DESCRIPTION Knowledge and Skills Excellent knowledge of data engineering tools Azure Synapse Analytics, Microsoft Fabric, PySpark and Python. Excellent knowledge of working with REST APIs, including ingestion and parsing of JSON and GIS data.

Who we are OTIV is a Ghent-based company leading the autonomous revolution in rail. We are on a mission to increase safety and efficiency of railway operations by teaching rail vehicles to drive autonomously. By making trains more efficient and safer, we actively contribute to a modal shift and a greener future.

Senior Data Project Manager Are you a seasoned project manager with deep experience in data platforms, migrations, and large transformation tracks? Do you thrive in complex environments where structure, clarity, and ownership make the difference? Then this assignment might be your next challenge.

About Kronos by EPSA Kronos by EPSA is a leading consulting firm specializing in finance transformation, performance management, and business optimization. As part of an international group, we support our clients in complex, strategic, and operational challenges across industries.

Introduction We are looking for a freelance Data Engineer to support the refactoring of a legacy application and the migration of its data towards a modern architecture. You will focus on data quality, transformation, and migration reliability.

Ref:AT46640-1 A Japanese logistics company is looking for an Office Manager in Antwerp, Belgium. You will be responsible for the overall management of the office, supporting daily operations across general administration, HR, ISO compliance, and facility maintenance. An understanding of Japanese culture and language will be advantageous.

Job Title: IT Service Manager Location: Gosselies, Belgium, (Hybrid) Language: English,French Duration: 02/02/2026 - 31/12/2026 Job Description: The ITSM will be responsible for the implementation, continuous improvement, and execution of the various ITSM processes at Company. 1.

We are looking for an Expert in AI/NLP/ML for an EU Institution in Brussels (50% onsite).