freelance English-speaking jobs in Wuppertal

Research Associate for the Project “Cluster of Excellence Understanding Written Artefacts” (Centre for the Study of Manuscript Cultures) § 28 Subsection 3 HmbHG InstitutionCluster of Excellence „Understanding Written Artefacts“ Salary level Start date01. 01. 2027, fixed until 30. 06.

Lead the European organization for IEP Technologies, a global leader in safety solutions. Drive business performance, collaborate across nine countries, and ensure sustainable growth. Share P&L responsibility and translate global strategies into regional actions.

MES Application Support Engineer/System Administrator for a long-term remote contract. Requires strong experience supporting MES or manufacturing IT systems in regulated environments, specifically pharmaceutical, biotech, or Life Sciences.

Leads and develops a sales team, owns the P&L of a dedicated segment, and drives sales strategy and market development. Requires experience in sales strategy, business development, and leading cross-functional teams.

The German Institute of Human Nutrition seeks two Postdocs to join the Department of Computational Precision Nutrition. Successful candidates will develop methods for analyzing digital N-of-1 trials and large epidemiological studies, contribute to software development, and perform data analysis and visualization. Expertise in Causal Inference, Statistics, Deep Learning, or Bioinformatics is required.

Medical Director to co-develop medical strategy for Myasthenia Gravis (MG) in Europe. Lead data generation, analysis, and interpretation, safety monitoring, and post-marketing study reports. Provide scientific input for publications, communications, and real-world evidence generation. Deliver medical training and maintain deep scientific knowledge of Neurology/MG.

International Payroll Specialist needed for fixed-term contract (July 2026 - December 2027). Process, audit, and reconcile international payrolls for Germany, Austria, and Switzerland. Partner with external providers and internal stakeholders to ensure accurate and timely payroll reporting.

Doctoral candidate to investigate cavitation phenomena experimentally and through computer simulation. Develop and implement simulation models in the MESHFREE software and validate them with experimental data.

Medical Scientific Liaison for Rare Diseases / Liver will build relationships with KOLs, provide scientific exchange, and support clinical development. Requires advanced scientific degree, MSL experience, and expertise in Rare Diseases / Liver. Must be fluent in German and English.

As a Test Engineer, you will ensure the reliability and performance of smart charging solutions by validating end-to-end system behavior. You will own the full testing lifecycle, from understanding requirements and designing test strategies to executing validation activities and resolving issues.

Provide first-level customer support to Finnish-speaking customers via phone, email, and chat. Process orders, manage customer accounts, and handle returns, exchanges, and repairs.

Senior Implementation Consultant guides customers through ERP implementations, analyzing manufacturing processes and configuring solutions. Requires strong ERP knowledge, experience leading projects, and understanding of industrial business processes. Must be comfortable working in a growing market and willing to travel. Native German and professional English skills are required.

Senior Kinaxis Consultant required to support a complex end customer project in the hi-tech/advanced manufacturing space. The successful consultant will work with French-speaking business stakeholders to understand Kinaxis pain points and identify solutions to improve value from the platform. Strong Kinaxis experience, fluent French and English communication skills, and business-facing consulting experience are required.

As an Investment Valuation Manager / Associate, you will provide valuation expertise for renewable energy assets across their lifecycle, supporting investment decisions and collaborating with stakeholders. You will refine valuation methodologies, financial models, and best practices.

Senior Marketing Designer will develop creatives for social and display ads, collaborate with the marketing team, and optimize ad performance. Requires 3-5 years of graphic design experience, proficiency in Figma and Adobe Creative Suite, and experience creating static and motion ads.

Senior Commercial Manager leads the strategic and operational development of a key pan-European omnichannel account, driving revenue and profit growth. Manages commercial performance, develops activation strategies, and optimizes omnichannel performance across touchpoints. Collaborates with international teams, builds strategic relationships, and identifies growth opportunities. Requires a degree in business administration, economics, or a comparable qualification, and experience in Key Account Management within the consumer goods sector. Fluency in German and English is required.

YOUR TASKS: Join our Aviation Europe team and lead the technical performance strategy of our aircraft fleet, ensuring the highest standards of safety, reliability, compliance, and operational efficiency while shaping the future performance of our European network. A.

As an Outbound Account Executive, you will own the full sales cycle for established small merchants (upmarket SMBs) with monthly transaction volumes above €15,000. You will proactively reach out to prospects via cold calls, emails, and social channels, manage your sales territory, and build a strong sales pipeline. You will lead discovery meetings, position payment and POS solutions, and collaborate with internal teams.

Fleet Repair Manager / Project Manager needed for Travemünde office. Leads and coordinates mobile repair teams, plans and supervises on-board repairs, manages technical projects, and ensures work meets technical, operational, and economic requirements. Requires a technical degree or comparable qualification, relevant maritime experience, and strong English skills.

Senior Product Designer to lead UX/UI for web and future mobile app. Translate problems into flows, concepts, and prototypes. Collaborate with engineering and product to define and build features. Must have 6+ years experience shipping digital products, experience with complex applications, and a mobile-first design approach.