freelance English-speaking jobs in Wuppertal

Senior Fixed Income Sales Trader responsible for trading across all fixed income segments and currencies. This role involves understanding market drivers, advising clients on market developments, and analyzing financial data. Requires professional experience and strong English and German skills.

Support digital transformation by ensuring sales master data is consistent and reliable. You will implement data governance standards, cleanse data, improve processes, and act as a business-IT interface.

Design and own end-to-end AEP/RT-CDP data architecture, including XDM modeling, identity resolution, and data flows. Requires 5+ years as a Data Architect with strong Adobe Experience Platform experience.

Co-own the Data area of a media-planning platform, managing APIs from platforms like Meta and Google Ads. Model and normalize data using dbt and SQL, ensuring data quality and pipeline reliability. Requires strong Python and SQL skills.

Drive new business growth across Europe and MENA by acquiring suppliers, buyers, data customers, and partners. Focus on market expansion, platform adoption, and building commercial relationships in the dairy industry.

Support international health and wellbeing consulting projects for multinational clients. Develop health optimization strategies, analyze data, and coordinate project deliverables. Requires experience in insurance or related fields.

Lead complex AI and automation projects for enterprise clients. This role involves consulting delivery, stakeholder management, and commercial development within a fast-growing AI technology company. Requires consulting experience and fluency in German and English.

Voi seeks a Driver to operate in a leading shared micromobility operator in Europe. This role supports Voi's mission to provide safe, sustainable, and reliable micromobility across various cities.

Lead DSE eCompliance and IT Governance, overseeing CSV programs and GxP systems across the EU. This role provides strategic leadership for Quality and IT compliance, managing SAP S/4HANA and digital quality initiatives.

Senior Account Executive to drive new business sales and account management for the Germany Territory. Requires 5+ years selling Enterprise Software (SaaS, PaaS) to German IT departments.

Design and develop high-end C++ components for medical desktop applications, focusing on performance, stability, and scalability. Architect, implement, and review complex multithreading and parallelization concepts. Analyze, refactor, and optimize existing codebases, identify bottlenecks, and raise product performance and quality.

Business Development Director to win top-tier enterprise clients and build long-term partnerships with leading European brands. Requires 5+ years in strategic B2B sales, C-suite engagement, and native German/professional English.

Agency Development Director, DACH supports and elevates agency business development in the DACH region. This role drives trading partnerships with global and local agencies, requiring 7+ years in digital marketing/ad tech.

Head of Commercial Services drives global service strategy and execution, leading Service Sales and Product Management. This role defines commercial strategy, manages partner channels, and steers service performance to ensure revenue growth.

Deliver groceries to customers efficiently by e-bike or e-scooter. Meet and exceed delivery targets while providing exceptional customer service.

Analytical Lead QC – Biological Analytics requires leading analytical activities including optimization, transfer, validation, and troubleshooting. Candidates need 8+ years of experience in pharmaceutical or biotech, strong analytical methodology skills, and fluency in German and English.

Site Reliability Engineer (SRE) / DevOps professional to develop and implement infrastructure automation solutions, including IaC, CI/CD pipelines, and Kubernetes. Experience with cloud platforms, container technologies, and monitoring tools is required. Must have strong automation, scripting, and problem-solving skills. German language proficiency (B2 level) is essential.

Manage and optimize paid B2B campaigns across Google and LinkedIn Ads for multiple clients. Requires 1-2 years of experience, budget ownership, and proven ability to drive results independently. Fluent German is required.

Mechanical Test Engineer (w/m/d) Applicators is sought for the Brachytherapy division. This role involves conducting and documenting mechanical testing of medical products and serves as a central point for various departments.

Senior Backend Engineer needed to build and maintain Elixir/Phoenix systems. Responsibilities include API development, migrating legacy logic, and making architectural decisions. Requires 5+ years of experience.