ruby English-speaking jobs in Düsseldorf

Drive customer success across onboarding, adoption, retention, and growth for a fast-growing AI technology business. Own a portfolio of customers, build trusted relationships, and ensure they achieve value from the platform.

The Global Account Leader manages Eaton's relationship with a critical global distribution partner and an additional account. This role drives sales growth and strengthens strategic partnerships across EMEA, developing and executing a 3-5 year strategic account plan. Responsibilities include establishing global strategic relationships, developing sales and marketing plans, and ensuring alignment with Country Sales Organization priorities.

Senior Functional Business Analysts are needed to support Daily Banking initiatives covering payments, cards, and deposit products. The role involves end-to-end business analysis, process design, and supporting MVP deliveries across modern banking platforms.

The Controlling Manager – Construction (M/F) will manage a small team and oversee the financial operations of a €100 Million Group entity in Germany. Responsibilities include financial reporting, budgeting, forecasting, and process improvement. The ideal candidate has a Master's degree in Finance, 15+ years of relevant experience, and strong analytical and managerial skills.

Primary and Secondary School Teacher (m/f/x) for Art will plan and conduct lessons in English, mentor students, and communicate student progress with parents.

Teamlead IT - Datacenter & Infrastructure will steer, operate, and develop the global IT infrastructure, including data centers and networks. The role involves developing and implementing IT infrastructure strategy, managing projects, and ensuring a secure and high-performing environment.

Supervises a team of delivery drivers, ensuring driver performance, customer service excellence, and achievement of key operational KPIs. Responsibilities include driver coaching, KPI performance management, customer issue resolution, and promoting a safe and efficient work environment.

This part-time Customer Service Officer role provides operational support and directs inquiries at Workskil. The successful candidate will have strong administrative skills, experience in a busy reception environment, and the ability to handle a variety of customer interactions.

Provides paralegal support to the Legal Documentation team, drafting, reviewing, and negotiating standard form agreements. Manages documentation workflows, supports process improvement initiatives, and assists with knowledge transfer to an external provider.

Package handler needed for a fast-paced environment. Responsibilities include sorting, scanning, loading, and unloading packages, using equipment, and following safety regulations. Must be a team player, complete training, communicate effectively, and have attention to detail.

Lead a team of Data Centre Associates in the daily operations of a data center. Responsibilities include task assignment, progress monitoring, technical support, material management, and quality assurance. Requires experience in logistics, warehouse operations, or data center operations, with proven leadership skills. Strong organizational, communication, and problem-solving abilities are essential.

Experienced Business Travel Consultant needed for a hybrid role supporting corporate travelers. Fluent German (C1+) and 5+ years of experience required. Strong GDS experience (Sabre, Amadeus, or Galileo) is mandatory.

Manage the financial and administrative aspects of our growing grant portfolio, ensuring compliance and timely reporting. Coordinate with funders, project managers, and accounting teams.

HSE Site Supervisor required for a steel furnace installation and commissioning project in Germany. Full-time, on-site role (July 2026 - August 2026) implementing and maintaining HSE management systems, ensuring compliance with PTW and LOTO procedures, and leading safety initiatives. Minimum 3 years HSE experience in heavy industry, strong commissioning background, and fluency in English and German required.

This Supply Chain & Operations Coordinator role manages end-to-end planning, procurement, distribution, and inventory for Travel Retail products. Responsibilities include demand planning, order fulfillment, supplier management, reporting, and ensuring compliance.

Develop and implement novel thin-film processes and technologies for MEMS applications on 300mm wafers. Drive the transfer of new processes from research to production. Lead feasibility studies and collaborate with research institutes and equipment suppliers.

Account Executive for Paessler's New Business in the DACH region. Generate net new revenue by working with prospects to demonstrate the value of Paessler's PRTG Network Monitoring and Enterprise Monitoring solutions. Manage the full sales cycle, including negotiations and technical demonstrations.

The Project Contract Manager supports disciplined commercial delivery for EUROGATE's German terminal automation program. Responsibilities include contract administration, supplier performance monitoring, cost control, and change management. The role requires experience in contract administration, procurement, and project delivery environments.

About the Company Our client is a leading and rapidly growing company in the healthcare sector, operating across multiple locations with an ambitious expansion strategy. To support its continued growth, we are seeking an experienced Head of Recruitment (m/f/d) to strategically develop the talent acquisition function and play a key role in scaling the organization.

Sales Assistant (m/f/x) for Carhartt WIP store in Stuttgart. Provide customer service, drive sales, process transactions, maintain visual displays, and follow store policies. Experience in retail/customer service, excellent communication, and selling skills required. Fluent German, English advantageous.