freelance English-speaking jobs in Wuppertal

Develop and manage international key accounts in the data center segment. Co-develop and implement the central segment strategy for data centers. Build and maintain an internal cross-country data center community.

Manages the commercial targets of the medical testing and certification business field in Germany, including P&L, costs, and EBIT. Leads a team of specialists and coordinates cross-business-field orders. Implements sales activities, optimizes the product portfolio, and ensures compliance with regulations.

Experienced Recruiter to manage end-to-end recruitment across 16 European countries. Coordinate recruitment processes, source candidates, and contribute to employer branding. Monitor recruitment KPIs and ensure compliance with GDPR and internal policies. Fluent English and German required.

Develop aviation strategy for airlines, airports, or MROs. Design end-to-end aviation processes and optimize MRO operations.

Project Manager (Straßenbaumeister) to manage fiber optic infrastructure projects. Responsibilities include project planning, construction supervision, cost monitoring, and client communication. Requires Meisterprüfungszeugnis in Straßenbau certificate and 3+ years of project management experience.

Electrical Engineer to develop and deploy grid monitoring and analysis solutions based on advanced sensing platforms and high-resolution data acquisition.

Drives profitable revenue growth by identifying, qualifying, negotiating, and closing new business opportunities for Sphera's EHS&S software solutions in the DACH region. Focuses on selling to Enterprise accounts and hunting new business. Requires 5+ years of experience selling Enterprise Software and Technology solutions to the Global 2000. Fluency in German and English is essential.

Welder to perform MAG and TIG welding on boilers, pressure vessels, pipelines, and structural assemblies. Must possess welding certifications per DIN EN ISO 9606-1, AD 2000 – HP3, and Directive 2014/68/EU. Experience with various steel types and thicknesses required.

PhD position in Clinical Chemistry and Laboratory Medicine focusing on machine learning and AI in diagnostics and biomedical research. Develop computational methods for patient stratification and molecular subtyping.

As a Product Marketing Manager, you will lead end-to-end product development, define product roadmaps, and collaborate with engineering and R&D. You will engage with customers, manage technical documentation, and drive Alpha/Beta phases.

Working Student to support Operations team in reviewing, cleaning, and preparing client data for carbon accounting assessments. Responsibilities include data review, supporting carbon assessment workflows, conducting ESG analysis, and process improvement.

Senior Digital Insurance Solution Manager will collaborate with Underwriting Managers to design digital insurance products. The role involves translating underwriting logic and business rules into digital solutions on INSTANDA. Experience in insurance, digital platforms, and stakeholder management is required.

Senior HR & Learning & Development Lead will design and deliver the regional Learning & Development strategy, build leadership development frameworks, and drive organizational capability initiatives across Germany and Turkey.

Develop and maintain advanced power system models and calculation procedures. Lead the development lifecycle of models, from research to implementation and maintenance. Collaborate with application engineers to provide customer support.

Develop innovative power semiconductor components (Si Power MOSFETs) for automotive electronics. Characterize devices, verify specifications, analyze manufacturing data, and coordinate development tasks.

Ally Executive seeks a strategic Investment Partner to support business expansion and platform development (RoleSense) across India, APAC, and EMEA. This role requires active participation in business expansion, market access, and strategic direction.

ADAS System Engineer needed to evaluate algorithms, analyze sensor data, and ensure performance and safety of advanced driver assistance systems.

Evaluate and implement SAP master data processes for materials, business partners, and real estate objects. Design and integrate SAP MM standard processes with MDM strategies and SAP BTP services. Manage data migration and governance in an international context.

Part-Time Supplier Data Manager will define, document, and maintain standardized supplier data specifications. The role involves current-state mapping, gap analysis, supplier engagement, and data quality monitoring. Requires 7-10 years of experience in data governance, data quality, or master/reference data management within procurement or supply chain environments. Technical knowledge of data exchange technologies and experience with Coupa or similar platforms is preferred.

Senior Quality Manager CMO (m/f/x) Antibody Drug Conjugate (ADC) Manufacturing will manage quality oversight at Contract Manufacturing Organizations (CMOs), ensuring implementation and maintenance of Daiichi Sankyo's quality standards and regulatory requirements. The role involves managing quality-related topics, reviewing and approving documents, and supporting CMOs during Authority Inspections.