ruby English-speaking jobs in Düsseldorf

E.ON Energy Infrastructure Solutions GmbH seeks a Segment Developer Data Centre to join their team in Berlin, Essen, or München.

Salesforce Platform Architect (m/f/d) will design, implement, and manage Salesforce solutions for sales, service, and marketing operations. Responsibilities include leading the architecture of Salesforce solutions, collaborating with stakeholders, developing technical designs, and ensuring platform scalability and security.

Working student supports sustainability initiatives by developing AI agents to automate processes such as customer inquiries, ESG rating routines, and market monitoring.

Provide administrative support to the Director of Berlin International School, managing schedules, correspondence, and events. Coordinate with the Leadership Team, administrative departments, and stakeholders. Support recruitment, professional development, and finance processes.

Leads and develops the site maintenance and reliability team, ensuring safe and efficient operation of production assets. Develops and executes maintenance strategies, drives reliability improvements, and manages the maintenance budget.

Working student (up to 20 hours/week) to support the Research & Development department. Must be enrolled in a German university, preferably in a STEM field, with English (B2 minimum) and German language skills.

Lead and manage a 24/7 automated logistics facility, overseeing operations, people, and customer relationships. Drive efficiency, optimize processes, and ensure consistent service quality.

Expert in Receivables & Credit Management (m/f/d) for BU Professional. Responsible for end-to-end receivables and credit management, ensuring high transparency and data quality while reducing financial risks. Collaborates with Sales, Customer Service, and Key Account Management. Drives process improvements and manages credit insurance partnerships.

Experienced Contract Manager needed to support commercial delivery of major offshore wind projects. Manage complex contracts, mitigate risk, and ensure contractual obligations are met throughout the project lifecycle.

Research Associate (Wissenschaftliche*r Mitarbeiter*in) – Molecular Child Psychiatry conducts molecular and cellular biology experiments, analyzes data, and contributes to research projects.

PhD student to study Fe-bearing materials at in-situ conditions relevant for planet formation and evolution. Participate in R&D of X-ray scattering experiments and dynamic compression experiments.

Senior Transformation Delivery Manager will lead and deliver high-priority transformation projects across the group, shaping the new Transformation Delivery Center of Excellence.

Blue Card Agency, a Berlin-based relocation agency, seeks a German-qualified lawyer for a strategic legal partnership. The role involves leading a legal division, managing cases, and contributing to legal strategy. Two formats are available: Business Partner/Corporate Partner with equity participation or Of Counsel/Freelance Cooperation.

Research Scientist will contribute to the development of EUV lithography systems, focusing on strategies for precise optical component positioning. Responsibilities include physical modeling, simulation, system design, and specification development. Requires a strong background in physics, mathematics, or computer science, with expertise in optics, simulation, programming (Python), and algorithm development.

The Data Center Engineering Operations Technician is responsible for the delivery of best practice systems and problem resolution on all data center electrical and mechanical infrastructure. This role requires a highly driven individual who demonstrates initiative and proactively seeks solutions to complex technical problems. The technician will be accountable for setting and maintaining the highest standards for safety, driving continuous improvement efforts, and ensuring 100% uptime on all customer-supporting infrastructure.

Nexaro, a tech start-up and Vorwerk Group member, seeks a Sales Manager to focus on distributors in Western and Southern Europe.

Manage all aspects of travel for clients, providing support, consulting, and advising on travel solutions. Utilize GDS, particularly Sabre, and Freshdesk. Ensure client travel policies are adhered to and SLA's and KPI's are consistently met.

Deployment Engineer coordinates and oversees the installation and testing of technical systems in robotics projects. The role involves frequent travel and collaboration with internal teams, vendors, and contractors.

Senior data partnerships leader to define and deliver data sourcing and partnership strategy. Negotiate licensing agreements, manage data partners, and work with product and engineering teams to integrate new data sources.

Social Media Manager & Copywriter needed to manage and publish content across all social media platforms. Write engaging copy, plan and distribute newsletters, and coordinate blog articles. Must have native-like German, 1+ year of experience in social media management, content marketing, or copywriting, and excellent written German.