freelance English-speaking jobs in Wuppertal

The Payroll Manager is responsible for all payment activities within the German Payroll run (approx. 700 employees). This role reports to the Senior Payroll Manager and is based in Basel, Switzerland. The position is initially for six months with the possibility of becoming permanent.

As a Field Application Engineer, you will be the technical point of contact for customers in industrial automation, robotics, and medical devices. You will provide technical expertise, support sales efforts, and manage customer relationships.

Experienced HR Manager needed for commercial vehicle operation. Lead all people-related activities across dealerships, workshops, and head office. Manage employee lifecycle, talent acquisition, learning & development, compensation & benefits, and employee relations. Must have strong knowledge of German employment law and ACAS best practices.

Drive net new enterprise revenue and account growth across Europe. Own the full sales cycle for a technical platform focused on AI infrastructure, compute workloads, and performance optimization.

Full-Stack TypeScript Developer to maintain and develop React applications (Next.js & Vite) and backend services. Build new features with TypeScript, write unit and integration tests, and collaborate with designers, backend developers, and product managers.

Applied Researchers develop advanced query understanding products using ML algorithms to interpret user behavior. Collaborate with researchers and engineers on cutting-edge technologies to solve complex e-commerce search challenges.

Leads a team of Advanced Workflow Specialists, developing and enabling them to support sales force in demonstrating value propositions and maximizing revenue. Provides market intelligence and contributes to the development of application notes and targeted strategies. Requires minimum 4 years of hands-on experience in Life Science microscopy, profound knowledge of 3D imaging solutions and image analysis, and fluency in German and English.

The Max Planck Institute of Biochemistry seeks a motivated Master's student to investigate metabolite production and signaling during monocyte to macrophage differentiation and recruitment. The successful candidate will learn and perform immunology and molecular biology techniques, including cell culture, flow cytometry, and targeted metabolomic analysis.

This 2-year PostDoc position at the Climate Service Center Germany focuses on co-developing and co-testing backcasting tools with local communities in the Amazonian and Landkreis Harburg regions to define climate-resilient futures. The role also involves evaluating and monitoring digital climate service tools.

Leads the design of engine structures and piping, oversees structural analysis, manages budgets, and coordinates with suppliers. Develops the technological roadmap for engine hardware and ensures designs meet subsystem requirements.

This role combines strategic HR Business Partner responsibilities with operational HR tasks. You will act as a trusted advisor to senior leadership, supporting a high-performance culture and ensuring smooth execution of core HR processes.

As Buying Lead Adults, you will build profitable product assortments aligned with the Brand Strategy. You will lead the strategic vision and plan for a Business Unit, manage the product lifecycle, and collaborate with cross-functional teams. You will analyze data to identify revenue growth opportunities and present findings to stakeholders.

Contract Industrial Engineer needed for 3-4 week remote project. Collaborate with AI research teams to improve model outputs and diagnose issues in machine learning systems. Must have 4+ years experience and excellent written communication skills.

Supports the development of financial concepts and strategy, drives execution of finance initiatives, and coordinates cross-functional projects. Prepares materials for Board, Supervisory Board, and investor relations. Acts as an interface between the CFO and key stakeholders.

Leads the certification and approvals of devices across four Business Units, focusing on diamond drilling, dust management, measuring and fastening tools, robotics, wireless, and IT products. Drives strategic regulatory management, including sustainability regulations and standardization. Manages and develops a team, collaborating with stakeholders to ensure efficient implementation of regulatory requirements.

Responsible for administrative service support for local, expatriate, and business travel employees in Germany. Optimizes and implements administrative service processes and standards based on company policies and local business needs. Coordinates daily office operations, including meeting organization, client reception, and EHS safety management. Collects service requests, identifies service shortcomings, and drives continuous improvement. Manages administrative suppliers, expense review, and payment. Requires a bachelor's degree or above, at least 3 years of administrative experience, and proficiency in English and German.

Co-founder (Education & Pedagogy) needed for a screen-free AI tutor. Must be a recent graduate (within 5 years) from a recognized German university with a degree in Education Sciences, Lehramt, Educational Psychology, Learning Sciences, or a related field. Deep understanding of the German school system and experience navigating its regulatory environment is required. This role requires a native German speaker who can represent BluePen AI in education forums and advocate for the product within the German education system.

PhD student to join ERC-funded project investigating human kidney adaptation using single-cell and spatial omics technologies. Will contribute to building a longitudinal atlas of kidney adaptation, combining single-cell RNA-seq, spatial transcriptomics, and single-cell ATAC-seq with clinical cohorts. Requires a Master's degree in a related field, experience with single-cell data analysis, and programming skills in R and/or Python.

Postdoctoral researcher to conduct independent and collaborative research on migrant rights and democratic rights. Will contribute to mapping legal practice communities and developing a research matrix. Requires a completed PhD, experience in legal practice or with practitioners, and the ability to publish research in English.

Working student in Electrical Engineering supporting the design of PV systems, including component dimensioning and AutoCAD implementation. Must be enrolled full-time in a Berlin or Brandenburg university, studying Electrical Engineering or a related field.