student English-speaking jobs in Mülheim

Experienced Freelance Plumbing Project Manager needed for a major data centre project in Frankfurt. Manage plumbing installations, coordinate with MEP and civil teams, and ensure project deliverables meet quality and safety standards.

Field Sales Representative will support and develop existing and target customers in the independent retail segment. Responsibilities include acquiring new customers, building relationships, conducting sales presentations, and managing projects. Requires at least 3 years of field sales experience selling capital goods in the German retail sector.

The Chief Operating Officer / Chief Financial Officer (COO/CFO) is a senior leadership role responsible for translating the company's strategic plan into operational reality. This role will manage financial strategy, profitability, pricing, funding, and operational execution. The COO/CFO will also oversee legal and data compliance, team and resource management, and process architecture.

Databricks seeks Lakebase Sales Specialists to drive adoption of Lakebase, a fully-managed Postgres offering, with platform, application, and data teams. This role partners with Account Executives to modernize customer data foundations and sell the value of fully-managed Postgres for intelligent applications.

Senior Accountant will oversee accounting operations for Germany, Belgium, and France. Responsibilities include managing general ledger activities, ensuring accurate financial reporting, and maintaining compliance with local statutory requirements. Requires 7+ years of accounting experience, fluency in German and English, and knowledge of German GAAP.

PhD position (f/m/d) investigating metabolic regulation of T cell response in chronic infection and tumor microenvironment. The position is part-time (25,025 hours per week) for 3 years.

As a Wind Farm Controller (WFC) Commissioning Engineer, you will support the commissioning and operation of wind farm control systems globally. You will collaborate with customers, grid operators, and internal specialists to ensure controller integration, grid compliance, and project delivery.

Lead and inspire the German Medical team, driving excellence in medical-scientific leadership across therapeutic areas. Develop and execute strategies for evidence generation, dissemination, and stakeholder engagement. Manage the German Medical budget and ensure compliance with SOPs.

Lead business development and sales activities for large-scale hydrogen projects across Europe. Manage and develop a team of Sales Managers, leading complex industrial projects from opportunity development to contract closure.

Backend Engineer needed for complex B2B applications. Develop backend systems with PHP and relational databases, participate in architecture discussions, and contribute to API design, deployments, and security.

Senior Engineer (Backend & Data) will build the data layer, math model layer, and infrastructure for optimization at a company focused on industrial decision-making. Responsibilities include optimizing run times, building a data backbone, designing math model infrastructure, and scaling infrastructure to multi-tenant production. Requires 5+ years of experience building backend or data-intensive systems, industry experience in manufacturing, supply chain, energy, or logistics, and hands-on experience with optimization solvers. Must be proficient in Typescript and Python, and have a deep interest in semantic modeling and knowledge graphs. German fluency is required.

Experienced Registered Nurse (m/f/d) with minimum 3 years' bedside experience in a hospital setting. Provides clinical case management, communication and coordination, patient advocacy, and quality assurance for the TRICARE Overseas Program. Fluent in German and English required. Hybrid role with hospital visits and remote work, no night shifts or on-call requirements.

Senior Business Development Manager (m/f/d) to identify and acquire new customers and projects, develop strategic cooperations, and analyze markets and competitors. Requires a successful life sciences background, several years of experience in biotech CDMO business development, and strong negotiation and communication skills in German and English.

Conduct research in reasoning, interpretability, neuro-symbolic methods, and memory to advance LLM/VLMs for unseen tasks, domains, or languages. Publish at top-tier conferences, contribute to teaching, and supervise students.

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.

Information Security Specialist will maintain, develop, and improve the Europe-wide Information Security Management System. The role involves supporting process optimization, enhancing security awareness, and providing oversight of 1st line of defense functions.

Senior Consultant (m/f/d) – Ports & Logistics / Commercial Excellence leads commercial projects, advises clients, and contributes to business growth.

Service technician for salt and brine systems. Maintenance, repair, installation, and customer support. Requires technical training, travel flexibility, and strong communication skills.

Business Development Engineer to drive commercial growth in Germany, focusing on rotating equipment solutions. Responsibilities include acquiring new customers, expanding relationships with OEMs and end users, and executing a German-focused market plan. Requires fluency in German and English, a valid driver's license, and willingness to travel. Experience in industrial markets and rotating equipment applications is preferred.

Continental seeks a Tax Compliance Manager in Hannover, Germany. The role involves developing and maintaining tax compliance strategies, managing complex processes, coordinating with internal and external parties, and providing strategic tax guidance.