ruby English-speaking jobs in Düsseldorf

Supports data-driven decision-making by analyzing business data to improve planning, reporting, and execution. Tasks include documenting requirements, mapping processes, preparing reports, and contributing to dashboards.

Leads data partnerships with clinical, academic, and service providers, ensuring secure data transfer and integration into DAiNA workflows. Defines data formats, metadata, and quality control requirements. Manages data-related operational questions from partners.

Experienced M&E Project Manager needed to lead delivery of mechanical and electrical packages for a major hyperscale data centre. Manage subcontractors, ensure quality, safety, and on-time completion.

Experienced Site Construction Manager needed to lead commercial and industrial mechanical projects in Germany. Manage site teams, subcontractors, and resources to ensure safe and timely project delivery.

Sales Stylist for Levi's® in Mannheim. Create genuine customer connections and deliver exceptional 1:1 service. Support store operations, maintain visual standards, and help achieve sales goals.

Head of New Technology Formulation leads design/process development across modalities, focusing on ADCs. Responsibilities include regulatory submission support, technology transfer, and driving FTRL strategy. Requires a Ph.D. or Master's with extensive formulation/CMC experience.

Freelance lecturers (m/f/d) are sought for university preparation courses in Berlin, starting September 2026. Subjects include English, Mathematics, Computer Science, Natural Sciences, Economics, and German (as a Foreign/Second Language). Applicants should have a relevant university degree, teaching qualification, or equivalent experience.

Senior Project Director to oversee and manage large-scale Data Centre Projects globally. Requires proven experience in construction project management, strong leadership, and strategic thinking.

PhD candidate needed to develop a microfluidic sample-preparation unit using magnetic beads for next-generation molecular diagnostics. This involves modeling, designing, and prototyping automated target-molecule extraction workflows.

Account Manager will focus on growing and developing assigned accounts within the Electronics industry. Responsibilities include identifying sales opportunities, developing strategic account plans, and maintaining relationships with customer contacts. Requires 4+ years of experience in the Electronics industry and fluency in English and German.

Shape and drive the product direction for the Enterprise product offering, identifying, evaluating, and prioritizing customer needs. Lead product development from concept to launch and adoption, collaborating with stakeholders across engineering, operations, compliance, risk, and business development. Manage and develop a direct report, fostering their growth and ensuring high-quality delivery.

Deliver groceries to customers efficiently by e-scooter or e-bike. Maintain a focus on delivery targets and exceed them. Must be at least 18 years old with a valid work permit, driving license, and English or German language proficiency.

Senior Legal Counsel provides legal advice and governance support to Germany and Operations EMEA teams. Responsibilities include contract negotiation, managing external counsel, and offering practical, business-focused legal solutions.

Lead operational improvement programs, stabilize underperforming businesses, and deliver complex transformation initiatives for a global strategy consultancy.

Technical Project Manager for C&I Solar & BESS. Lead battery storage projects from contract award to commissioning, managing technical aspects, contractors, and grid connections. Requires electrical engineering background and fluent German.

Design and evolve architecture for large-scale distributed systems using AI foundational platforms like LangChain. Define agent interfaces, RAG strategies, and select optimal technology stacks. Requires 8-10 years in distributed systems.

Lead backend and fullstack engineering teams building real-time AI conversation systems at scale. Requires 7+ years as a software engineer and 3+ years leading teams with strong technical credibility.

Configure and enhance Workday's Core HCM module, partnering with stakeholders to translate business needs into system design improvements. Provide guidance to SumUppers using Workday, build reports and dashboards, and contribute to documentation and change management.

Project Manager to deliver client-facing AI projects for a Berlin-based tech scale-up. 2-4 years' experience in consulting, tech consulting, or project management required. Strong communication, stakeholder management, and analytical skills needed. Fluent German and English essential.

Working student to produce online learning content using a custom authoring tool. Must have strong English (B2) and German language skills, experience with Microsoft Office Suite, and high attention to detail.