freelance English-speaking jobs in Wuppertal

Graduate Program for Installation Engineer. Install, maintain, and upgrade cutting-edge semiconductor equipment. Utilize digital analytics and perform maintenance on electrical, vacuum, and mechanical systems. Travel up to 75%.

Software Engineers (m/f/d) join small teams (max 5 people) to design, develop, test, deploy, and maintain software. Training is provided on project technologies. Experience in C/C++, Python, or Java is required.

Manage facilities and material handling maintenance across sites in Northern Europe. Lead technical teams, ensure operational continuity, and develop maintenance concepts. Requires technical expertise and knowledge of German and English.

Founding CTO for a women’s health intelligence platform. Lead scaling a live beta, architecting the health engine, and building AI features. Requires 10+ years experience, strong backend/infra skills, and HIPAA compliance focus.

As a Solution Designer, you will translate complex business processes into software and workflow concepts, identify automation potential, and design intuitive user journeys. You will collaborate with Product Management, UX, and Development teams to support product development.

Senior Finance Data Engineer to modernize the SAP BW reporting environment. Responsibilities include assessing legacy systems, designing scalable data platforms, and implementing data quality checks. Requires 10+ years in SAP BW and data integration.

Lead end-to-end delivery of the AIR·MS platform and D2E projects. Manage multi-stakeholder workstreams, driving cross-functional delivery across engineering and research teams. Requires 5+ years in software development with data platforms experience.

Web Developer to design and implement new features for cloud-based software solutions using modern browser technologies. Requires JavaScript (Vue.js or Angular), HTML5, CSS3, Git, and fluent English.

Define, develop, and execute test plans for 5G solutions (RAN and Core features). Collaborate with Product Management and Engineering teams as a test engineer and product expert. Perform end-to-end functional, performance, and interoperability tests. Validate features such as QoS, slicing, and handover. Provide first and second level support for the product.

Junior Engineer to develop and maintain backend services and APIs supporting index construction workflows. Requires a degree in CS or related field and basic knowledge of Java, Python, or TypeScript.

Build and maintain production-ready backend and full-stack features using TypeScript. Integrate AI-powered functionality into the think-cell product. Work closely with C++ and AI engineers to translate ideas into robust product features.

Product Owner for AI-Driven Energy Management. Own product areas on the etaONE® platform, translating needs into user stories. Collaborate with cross-functional teams using agile methods. Minimum 2 years in product management required.

Accountant (m/f/d) manages daily operational accounting, supports HGB closings, and develops digital finance structures. Responsibilities include invoice management, reconciliations, and handling international tax topics. Requires commercial/accounting training and 2+ years of experience.

Lead new client acquisition and retention in the International Private Bank. Advise on investments, banking, and financial planning to deliver complete wealth management solutions. Requires Private Banking experience with high net worth individuals.

Head of Global Supply Chain Planning & Execution leads end-to-end planning across outsourced manufacturing. Responsibilities include S&OP, IBP, demand/supply alignment, and managing global CMO partnerships.

Implement data visualization plugins in TypeScript using React. Collaborate with design and frontend teams. Ensure smooth application performance across platforms.

Sr. Solutions Engineer to demonstrate Databricks' Data Intelligence Platform to solve complex customer data challenges. Responsibilities include building client relationships, hands-on evaluation with Spark, and advising on Big Data Analytics architecture. Requires Python coding and Big Data knowledge.

Lead Vendor Management & Operations role overseeing vendor logistics partners across Germany. Own operational management, performance, and strategic partnerships for external fleet management. Requires logistics/operations experience and team leadership.

DevOps Engineer needed for a high-tech German engineering company. Responsibilities include CI/CD pipeline setup and optimization, GitLab workflow management, and automation of build, test, and deployment processes. Requires experience with .NET, C++, Windows and Linux systems, and automation tools.

Senior Data Analyst with 2+ years of experience in SQL and Python. Expertise includes complex queries, big data optimization, and anomaly detection using clustering and distribution analysis. Must be statistically grounded and build automated, reusable data solutions.