ruby English-speaking jobs in Düsseldorf

Stranger Soccer seeks a passionate entrepreneur to open and operate their business in Stuttgart. The License Owner will bring the brand to life, recruit and lead a team, secure game venues, and drive sales and marketing. Ideal candidates have a football passion, business background, and entrepreneurial spirit.

Designs, simulates, and validates GHz-band circuits including TIAs, ADC/DAC front-ends, amplifiers, and PLLs for photonic computing systems. Collaborates with ASIC designers and integrates electronics with silicon photonic components. Characterizes electro-optic bandwidth, eye diagrams, jitter, and system-level behavior. Proposes novel analog architectures and co-integration strategies.

Leads partner-facing initiatives to accelerate content growth and quality on TikTok for creators and publishers. Manages a portfolio of partners, drives account performance, and identifies growth opportunities.

The Quality Control Assistant ensures data accuracy and compliance with GCP guidelines within the Early Phase Clinical Unit. Responsibilities include reviewing clinical documentation, data entry, and checking source data for completeness and accuracy.

Product Manager for SAP Managed Cloud Services will identify market trends, create roadmaps, and design new global managed cloud services. Responsibilities include end-to-end service offer management, product documentation, and providing product knowledge to internal teams. Requires a degree in (business) information technology, economics, or a comparable field, 3-5 years of experience in SAP technology, and fluency in English and/or German.

Nachhilfeunterricht seeks Developers, Software Engineers, and Computer Science students to tutor students and professionals in programming. Tutors will assess student knowledge, plan lessons, and provide code mentoring. Strong communication and commitment to student progress are required.

As a Client Care Advisor, you will handle customer inquiries via phone, email, and live chat, providing solutions to technical or service-related issues. You will document customer records and collaborate with colleagues to improve processes. Native or near-native German and good English are required.

Leads the development and implementation of a Lean roadmap, embedding Lean principles into the plant culture and driving continuous improvement. Develops and delivers Lean training programs and mentors team members. Requires a Bachelor's degree in a related field and 5+ years of Lean implementation experience in manufacturing.

Intern supporting customer service, sales, and project management. Tasks include translating documents, creating presentations, preparing training materials, and reviewing assembly reports. Requires enrollment in a technical degree program with a focus on sales and strong German and English skills.

Process Planner / Production Planner (m/f/d) for a full-time position (35 hours/week) with experience in the automotive sector. Responsibilities include planning, optimizing, and industrializing manufacturing and assembly processes. Experience in the Mercedes-Benz environment is desirable.

Provide 1st level IT support to global colleagues, managing client devices and troubleshooting issues. Maintain office infrastructure, including hardware and audio-visual systems. Contribute to IT projects and optimize internal systems.

UX/UI intern to collaborate on product design and user flows for Occibo, an AI-powered self-service platform for children's book creators. Assist with wireframes, prototypes, and UI assets to shape engaging user experiences.

As the first in-house Sales/Commercial Engineer, you will build and lead the sales organization, growing into Sales Director over three years. Responsibilities include managing RFQs, building customer relationships, cold outreach, technical support, and pipeline management. You will build a sales team, define sales strategy, and represent the company on major projects. Minimum 5 years of B2B sales experience, fluency in English and German, and the ability to handle long sales cycles are required.

As the first dedicated data science hire, you will own the machine learning stack end-to-end, designing and deploying models that power customer-facing features. You will work with a unique multimodal health dataset and contribute to the development of a Doctor AI. Strong Python skills, deep learning experience, and a production environment background are required.

Postdoctoral Researcher (f/m/d) will contribute to the research professorship "Public Social Sciences and Humanities: Key Societal Debates" focusing on environmental humanities, public humanities, migration, decolonial discourse, indigenous studies, and creative writing. Responsibilities include developing and implementing a postdoctoral research project, organizing workshops and events, preparing academic manuscripts, and participating in blog development and grant proposals.

The HSE Manager will implement and improve Eni's health, safety, environmental protection, and public safety policies. The role involves developing and maintaining the HSE Management System, supporting occupational health and safety, and monitoring HSE performance indicators.

Senior Technical Consulting Specialist for a public sector project focused on web platform development, maintenance, and optimization. Responsibilities include TYPO3 migration, Nextcloud management, and accessible digital service implementation. Requires experience in graphical web design, IT security knowledge, and German language proficiency (C1 for consulting roles).

Senior Interior Designer needed for automotive interior production design. Create innovative interior design proposals for concept and production vehicles. Expert-level proficiency in design software required. Bachelor's or Master's degree in a related design discipline and 5-10 years of experience.

Source, buy, and sell nuts and dried fruits globally. Develop and maintain relationships with producers, processors, and customers. Identify market trends and negotiate trade contracts.

Analyze and solve complex structural, thermal, and fluid-related development challenges. Independently manage projects, acquire new business, and provide technical leadership on simulation-related topics.