ruby English-speaking jobs in Düsseldorf

PhD position (f/m/d) investigating metabolic regulation of T cell response in chronic infection and tumor microenvironment. The position is part-time (25,025 hours per week) for 3 years.

UPS Engineer needed for Infrastructure Business Area Project Office. Collaborate with stakeholders to define system requirements, perform site surveys, and develop UPS system configurations. Integrate and configure UPS systems with other power infrastructure. Provide technical consultation on UPS system design, implementation, and lifecycle service strategy. Lead troubleshooting and incident management. Bachelor's degree in electrical engineering or related field required. Minimum 5 years of experience as a Systems Engineer in UPS system design, integration, and maintenance. Strong understanding of power electronics, power distribution, and energy storage technologies. Excellent problem-solving and communication skills.

Sales Development Representative for Checkmk, a leading hybrid IT monitoring software. Join a dynamic, growing team and contribute to the success of a product used by thousands of administrators.

Marketing Intern to support design and marketing operations. Create graphics, social media content, presentations, and marketing materials. Support SEO, event organization, and marketing lead tasks. Must be proficient in Adobe Creative Suite and have excellent English skills.

Senior Controls/BMS Manager to lead global commissioning activities across complex, large-scale infrastructure projects. Requires deep technical expertise in control systems (BMS/BAS/EPMS/PLC) and a strong track record of delivering high-performance outcomes in data center or similar environments.

Technical manager for automation and telecommunications on an offshore grid connection project. Responsibilities include planning, quality assurance, commissioning, and handover.

As the first GTM Engineer, you will design and implement a scalable CRM architecture, build API integrations, and develop growth hacking workflows to optimize lead acquisition and funnel efficiency.

Leads the development and execution of patient advocacy strategies for Hematology-Oncology in Europe. Builds and manages relationships with patient advocacy groups and professional societies. Oversees patient engagement initiatives and tracks advocacy outcomes.

Experienced Medical Science Liaison sought for global pharmaceutical company. Focus on Oncology, establishing scientific collaborations and engaging with healthcare providers in the Stuttgart region.

Senior Consultant (m/f/d) – Ports & Logistics / Commercial Excellence leads commercial projects, advises clients, and contributes to business growth.

Ensure timely and accurate VAT compliance across multiple countries. Provide VAT advisory on cross-border transactions and support VAT audits.

Field Clinical Specialists provide clinical training to physicians and staff on transcatheter heart valve technology. They will travel within an assigned territory, providing education on device handling, implantation, and troubleshooting. Responsibilities include case management, training curriculum development, and collaborating with cross-functional teams.

Mechatronics technician responsible for electrical installations, assembly, and commissioning of products at customer sites. Designs circuit diagrams, performs prefabrication, and supports conversions, maintenance, and modernization of systems. Requires a completed technical apprenticeship and willingness to travel.

Working student position with the MILES carsharing team in Stuttgart. Responsibilities include cleaning and maintaining vehicles, ensuring fleet readiness, and performing minor repairs. Must be familiar with Stuttgart, have basic cleaning experience, and be fluent in German and/or English.

Executes Kelvion's EMEA Service HSE strategy across European service centers, field service activities, and on-site projects. Translates HSE requirements into practical routines, minimum standards, and measurable performance outcomes. Develops, implements, and sustains Service Center Minimum Standards and aligns Field Service operations with common HSE baseline expectations. Provides hands-on field support for pre-job preparation, critical control verification, and corrective action follow-up. Ensures effective incident response, root cause analysis, and sustainable closure of corrective actions. Designs and delivers practical HSE training and coaching for service leaders, technicians, and contractor-facing roles. Conducts risk assessments for service operations and projects and reviews method statements and risk assessments for high-risk activities. Ensures compliance with EU and country-specific HSE regulations across EMEA service operations and customer sites. Coordinates emergency response and crisis management preparedness for service operations.

As a Market Development Representative, you will generate qualified opportunities and drive new revenue growth in the EMEA region. Responsibilities include identifying new business opportunities, managing outbound prospecting, and scheduling appointments with potential customers.

Develop scalable technical solutions for production tools, partnering with product owners to design and implement robust systems. Integrate tools into existing ecosystems and ensure seamless data flow. Drive technical quality and reliability through testing, troubleshooting, and continuous improvement.

As a Global Specialist Alternative Assets, you will contribute to private debt and private equity investment structures, provide accounting analysis for alternative asset investments, and support private asset management.

Senior Business Development Manager (m/f/d) to identify and acquire new customers and projects, develop strategic cooperations, and analyze markets and competitors. Requires a successful life sciences background, several years of experience in biotech CDMO business development, and strong negotiation and communication skills in German and English.

Marketing Executive to support a growing team in a generalist role. Responsibilities include content creation, campaign execution, marketing operations, and performance tracking.