freelance English-speaking jobs in Wuppertal

The IT Project Manager will plan, coordinate, and monitor IT projects in the IT Operations department. Responsibilities include coordinating subject matter experts, monitoring progress and risks, ensuring transparency through reporting, and supporting strategic IT initiatives.

This critical 24/7 role ensures the availability and performance of data center infrastructure. Responsibilities include monitoring systems, conducting maintenance, responding to incidents, and ensuring compliance with German data center standards.

Senior NVH Engineer Wind Turbines analyzes noise emissions from wind turbines using simulation and measurement techniques. Develops design modifications to reduce noise and vibrations. Collaborates with engineering teams to integrate NVH optimization measures. Supports field testing and certification processes.

The CFO will partner with the Group CEO, shareholders, and advisory board, driving financial planning, budgeting, and liquidity management. The role involves establishing KPI-driven reporting structures, supporting a buy-and-build strategy, and leading post-merger integrations. The ideal candidate has experience in healthcare, private equity, and financial analysis, with strong communication and stakeholder management skills.

Lead Procurement and Supplier Management for the Packaging category, engaging with stakeholders across HARTMANN divisions. Drive category strategies, cost optimization, and long-term sourcing decisions. Manage supplier relationships, perform market research, and ensure contract negotiation and compliance with relevant regulations.

The Martian Mindset Cluster of Excellence at the University of Bremen invites applications for two independent postdoctoral research positions. Successful candidates will lead independent research projects with full scientific and budgetary autonomy. Applicants must have a PhD (or proof of imminent completion) in any field relevant to The Martian Mindset and a convincing 3-year research program.

Services and repairs military weapons and weapon support systems in a secure facility. Performs field level maintenance, diagnostics, and repairs according to technical specifications.

Product Designer will work within cross-functional pods to design solutions for restoration work involving multiple stakeholders. Responsibilities include user research, synthesis, and design across various personas. Must have German & English C1 or better for on-site research.

Lead the Product Management team for Medical Controlling & Coding. Set and communicate the vision, roadmap, and strategy for the value stream. Analyze market needs and regulatory requirements to ensure the product roadmap reflects real customer and market value.

Amazon seeks a competition lawyer to drive EU and German regulatory matters, advise on competition law across all businesses, and shape the company's long-term strategy.

Sales Researcher / SDR to support sales efforts through market research and lead generation. Research potential buyers, partners, and target companies. Build and maintain prospect databases and identify decision-makers.

Deliver groceries to customers efficiently by e-bike or e-scooter, exceeding delivery targets. Must be at least 18 years old, have a work permit in Germany, and speak English or German.

Design, set up, and operate core cloud infrastructure. Integrate cloud services into the Developer Platform, including FinOps. Implement infrastructure as code using Terraform, OpenTofu, and Crossplane.

Senior System Administrator will act as onsite technical lead for the Berlin office, providing 2nd-level support, managing Microsoft 365 and server infrastructure, leading IT projects, and coordinating with stakeholders.

Senior RF/mmWave IC Test & Characterization Engineer will develop and execute characterization methodologies for MMICs, RFICs, and semiconductor test structures. Perform device validation, technology qualification, and correlation measurements for advanced RF/mmWave technologies. Operate and optimize VNAs, spectrum analyzers, signal generators, probe stations, and related measurement systems. Develop automated measurement and data-processing workflows using Python, MATLAB, or similar scripting/programming languages. Work closely with IC design, semiconductor technology, packaging, and modeling teams. Document characterization methodologies, measurement setups, and technical findings.

As a Solutions & Services Executive, you will drive the strategic growth of Lenovo's services business through the channel, focusing on mid-market/SMB customers in West and North Germany. You will actively sell services, expand the service pipeline, and collaborate with internal and external teams to develop and implement growth plans.

A Postdoc position is available at the Institute of Fusion Energy and Nuclear Waste Management (IFN) / Nuclear Waste Management (IFN-2) to investigate the chemical and mechanical effects of delayed fission gas release in high burn-up spent nuclear fuel. The successful candidate will apply SCIANTIX modelling and couple it with nuclear codes such as BISON and TRANSURANUS.

Office Manager & Administrative Assistant needed for a Frankfurt-based corporate office. Manage daily operations, serve as a point of contact for facilities and IT, and support the Country Manager with administrative tasks. Requires strong organizational skills, fluency in English and German, and proficiency in Microsoft Office Suite.

Logistics ERP Solutions Architect (SAP S/4HANA) needed to support transition to SAP S/4HANA. Requires several years of experience in IT roles, including business analyst or functional consultant, with a focus on solution architecture. Solid technical background in SAP ERP WM, MM, and SD, and experience with ERP migration projects to S/4HANA are essential.

Leads commercial negotiations, manages key accounts, and drives business growth. Manages the full RFQ process, pricing strategy, and program execution. Collaborates cross-functionally to achieve cost and timeline targets.