ruby English-speaking jobs in Düsseldorf

Senior Data Scientist to co-lead data team, building and improving data pipelines for a web-based geospatial information system. Manage a data catalogue of over 2,000 datasets and collaborate with data scientists, engineers, and the renewable energy market.

PhD position in deep learning for phase-contrast synchrotron X-ray tomography. Develop physics-informed, self-supervised learning approaches for phase retrieval and implement reconstruction algorithms for large-scale hierarchical tomography.

Support a Ph.D. program in knowledge-enhanced large language models. Design, develop, and implement algorithms and models, create and optimize prompts and contexts, and adapt existing models to specific use cases. Conduct experiments, analyze findings, and present results.

Leads, mentors, and develops a cross-functional engineering and technology team. Defines and evolves the technology roadmap for scalable, high-performance XR products. Evaluates, selects, and implements new tools, platforms, and technologies. Ensures high standards across software quality, security, reliability, and delivery. Partners with senior leadership to align technology with business strategy. Manages technology budgets, resource planning, and delivery timelines. Builds external technology partnerships and stays ahead of emerging market and technology trends.

Active participation in an ongoing SAP HCM implementation project, including requirements gathering, testing, training, and project management. Support the design of the future operating model and interface functions with external service providers. Record, evaluate, and validate future business and technical requirements. Analysis, optimization, and design of HR processes. Continuous further development of the HR system. Support future projects and management of external service providers.

Provides administrative and logistical support to the MTRI team. Responsibilities include organizing marketing activities, managing office supplies, handling correspondence, and providing event planning support. Requires advanced MS Office skills, fluency in English and German, and strong organizational and communication skills.

Develop and enhance the user interface for control center software, ensuring optimal management of public transit operations. Contribute to the design and implementation of use cases, develop JavaFX components, and participate in agile development processes.

DYWIDAG seeks a Civil Engineer / Construction Technician to manage wind tower projects in Northern Germany. Responsibilities include project preparation, scheduling, cost monitoring, and communication with customers and project participants.

Designs business and solution architectures in the automotive environment based on customer and user-specific business cases. Responsible for organizational developments and business process modeling, ensuring the realization and consistency of projects from theory to operationalization.

Database Administrator responsible for installation, administration, and operation of MS SQL Server databases within a shared IT network. Duties include automation, monitoring, and optimization of database environments, planning resource requirements, implementing software updates, and resolving complex issues.

Lead a team of IT experts in the "Platform Operations Center" ensuring smooth client IT infrastructure operations. Manage projects, develop IT solutions, and advise clients on technical matters.

The Head of Application Solutions will lead the EW Application Solutions department, translating business requirements into digital solutions and managing development teams. Responsibilities include operational project management, ensuring stable system operation, resource management, and stakeholder management.

Senior Software Engineer needed to design, maintain, and improve backend systems for a growing technology company. Focus on shared services, APIs, and data-driven workflows. Experience with system design, cloud environments, and clean code is required.

Project Support Employee needed to assist in the coordination and execution of project activities. Support cross-functional teams, ensure communication with Greek-speaking stakeholders, and contribute to project goal achievement. Native Greek and strong German language skills required. Experience with ERP systems and MS Office is beneficial.

Senior Protection & Secondary Design Engineer specializing in Medium Voltage (MV) systems. Designs protection schemes, develops secondary schematics, selects relays, and configures, tests, and commissions protection systems. Requires 7-10+ years of experience in protection engineering and secondary system design (MV level).

Lead the integration of photonic processors into complete computing platforms. Own system-level design and bring-up for PCIe/SerDes/DDR-based boards, including high-speed digital design, signal & power integrity, mixed-signal and PCB design in the GHz range.

Lead and mentor a team of test engineers, ensuring product quality, test strategy, and process compliance for software and systems testing in the electric vehicle and energy storage sectors.

This 24-month graduate program offers a structured start in Controlling & Finance at Wilo. You will gain experience in financial processes, analyses, reporting, and process improvement. The program includes an international placement and structured mentoring.

IT Service Manager responsible for designing, implementing, and maintaining IT controls and security measures. Manages IT service processes, conducts audits, and reports on risks and controls. Requires experience in IT service management, ITIL, Matrix42, and relevant security standards.

The GFZ is seeking a senior scientist to lead its Secondary Ion Mass Spectrometry (SIMS) user facility. Responsibilities include managing laboratory operations, advising scientists on SIMS applications, developing research strategies, and reporting on laboratory utilization. The successful candidate will have a PhD in the natural sciences, at least 5 years of experience with SIMS instruments, and expertise in mineralogy, crystallography, and sample preparation.