ruby English-speaking jobs in Düsseldorf

System Engineer for Spacecraft Tanks. Ensure technical requirements and deadlines are met. Manage requirements, development plans, and verification. Coordinate technical aspects within interdisciplinary teams. Requires Aerospace Engineering degree and space systems experience.

Medical Scientific Liaison in Oncology. Identify and develop relationships with KOLs, engaging in scientific exchange about emerging therapies. Requires advanced scientific degree and 2+ years in an MSL or related role.

Account Executive to close net new logos (€150K-€400K ARR) and own expansion in mid-market accounts. Requires 2+ years of quota-carrying sales experience in enterprise software. German and English fluency is required.

Strategic Account Manager to drive growth across DACH and European markets. Develop strategic customers, manage sales pipelines, and analyze market trends for high-end technical solutions. Requires technical degree and B2B sales experience.

Develop and improve E.ON's Group-wide crisis management framework. Lead preparedness, coordinate major incidents, and provide decision support. Requires extensive experience in crisis management within complex operational environments.

Drive high-impact enterprise deployments by embedding on-site to solve real customer problems and build reusable automation patterns. Design production-grade solutions and translate business needs into concrete automation designs.

Freelance Mechanical CFD Engineer to train and evaluate AI agents on fluid simulation tasks. Requires expertise in CFD with OpenFOAM, ANSYS Fluent/CFX, or STAR-CCM+, and Python.

Experienced Offshore Wind Turbine Technician needed for long-term project support in the German North Sea. Responsibilities include maintenance, inspection, and repair of turbines and structures. Requires technical background and GWO certifications.

Sales Executive to open the German market, finding and winning new hospital and radiology customers across Germany, Austria, and Switzerland. Focus is on new business, with some time dedicated to existing accounts.

Senior Scientific Lead for Early Development of Topical Nucleic Acid Therapy. Advance nucleic acid technologies from research to proof-of-concept, designing pre-clinical studies and managing external partners. PhD required.

Business Development Intern to expand autarc in the Italian market. Responsibilities include B2B customer outreach, generating demos via calls and LinkedIn, and identifying new market opportunities. Fluent Italian is required.

Conduct a bachelor thesis on Global Supply Chain Business Transformation & Strategy. Analyze processes, develop data-driven solutions, and present findings to experts. Requires a relevant degree and analytical skills.

Lead strategic wholesale negotiations with European network operators, shaping the mobile communications model. Responsibilities include structuring capacity services and managing MNO/MVNO partnerships. Requires a relevant degree and strong negotiation skills.

Professor Open Rank in Accounting is a full-time role involving developing a research agenda, teaching across all levels in English, and supervising doctoral students. Expertise in IFRS and auditing is required.

Associate role within an established German family office. Focus includes strategic/operational development of portfolio companies, add-on acquisitions, and exit execution. Requires 2-3+ years in mid-market finance.

VP Sales EMEA will drive regional revenue growth and scale the sales organization. Requires 8+ years in B2B/Enterprise Sales leadership, 3+ years leading EMEA sales, and deep Vertical SaaS/ticketing expertise.

Qualified Primary Education teachers are sought to provide private lessons. Candidates need a degree in Primary and/or Early Childhood Education and a motivation to help students improve academic performance.

Postdoctoral Researcher to analyze quantitative proteomics and multi-omics data to identify molecular mechanisms in extracellular vesicle biology related to oncology. This role involves experimental validation using cancer models and driving interdisciplinary research.

Primary School Teacher needed as Class Teacher. Responsibilities include lesson planning, English instruction, student mentoring, and parent communication. Requires pedagogical qualification and practical teaching experience.

Office Manager & Corporate Assistant provides administrative support, manages front office activities, and coordinates travel. Requires fluency in German and English, strong organizational skills, and a service-oriented mindset.