freelance English-speaking jobs in Bielefeld

Design and develop mobile applications using React Native. Drive the rollout of Android apps to iOS. Optimize performance and debug for user experience. Ensure code quality through testing, reviews, and documentation.

UX and Content Designer will shape the content experience for customers, collaborating with cross-functional teams to design user-centric content. Responsibilities include designing microcopy, optimizing content flows, and contributing to the Content Design System. Requires 3+ years of experience as a UX Writer or Content Designer with excellent English writing skills. Proficiency in additional languages is a plus.

Manages warehousing quality control, standardizes processes, and improves efficiency. Develops and implements quality control strategies, ensures compliance with standards, and reduces error rates. Supervises on-site operations, identifies risks, and promotes cross-departmental collaboration.

Nagarro seeks a driven SAP Cloud (Senior) Sales Specialist to acquire new business and build customer value. Responsibilities include identifying and engaging new customers, managing a qualified pipeline, and leading the full sales cycle. Requires 3+ years of proven success selling SAP Cloud solutions with a consistent track record of winning new customers.

Provide customer service to Dutch-speaking customers via phone, email, and chat. Process orders, manage customer accounts, and handle returns, exchanges, and repairs.

Lead and mentor a team of developers, driving architectural decisions and coding standards. Design, develop, and maintain scalable web applications, architecting complex systems for reliability and security. Conduct code reviews, develop automated tests, and collaborate with teams to deliver high-quality solutions.

Lead a team of security engineers and incident responders, providing security advice, managing vulnerabilities, and handling incidents.

Senior R&D Project Manager to oversee diverse technology development, process optimization, and innovation projects. Manage cross-functional teams, build global collaboration frameworks, and accelerate technology industrialization. Requires 6+ years of R&D project management experience, proficiency in project management tools, and bilingual (Chinese/English) proficiency.

Support the Strategic Insights team in transforming data and market trends into actionable stories. Maintain forecasting tools, track competitor activities, analyze retail data, and collaborate on ad-hoc analyses.

Support the development of marketing materials, including website content, LinkedIn presence, and partner assets. Assist in creating AI-supported workflows for content production and marketing automation. Contribute to brand communication and research marketing best practices.

Senior Clinical Data Manager leads clinical data management activities from study initiation through database lock. Develops, reviews, and maintains data management documents. Resolves data irregularities and collaborates with internal and external teams to ensure data accuracy and quality. Oversees database lock planning and execution.

Design, analyze, and optimize aircraft/hovercraft propeller parts, assemblies, and systems. Conduct component life assessments and create test plans. Plan R&D activities and collaborate with universities and suppliers.

Plan and support the mobilization and demobilization of tagline systems on installation vessel cranes. Coordinate with suppliers and internal teams to ensure seamless operations. Provide on-site support and ensure quality and safety standards are met.

Health & Safety Coordinator needed to ensure compliance with German legislation and internal standards across retail stores, offices, and warehouses. Responsibilities include risk assessments, site inspections, incident reporting, training, and emergency preparedness. Requires 1-2 years of experience in a health & safety role, strong knowledge of German regulations, and excellent communication skills.

Supports M&A deal execution, including pitch materials, financial analysis, and market research. Focus on sustainability, energy transition, and industrial transformation.

Lead the finance function for a security and compliance tech company, encompassing accounting, controlling, FP&A, and finance operations. Develop and grow a finance team, act as a strategic partner to the executive team, and ensure accurate financial reporting and compliance.

Support the revamp and migration of a website from Squarespace to Cohart. Develop a visual and creative direction, create SEO-optimized content, and test site performance.

Expert Controlling will define and implement standardized production controlling processes, ensure accurate product cost calculations, and translate production data into insights for management.

Operations Specialist for time-critical logistics, providing customized solutions including Onboard Courier, air charter, and ground transportation. Manage pickups, deliveries, and customs procedures. Minimum 2 years experience in time-critical logistics, aviation, or tourism. Fluent English, additional languages a plus.

Guide and support UX/UI students, design and deliver lessons, and mentor learners in applying design thinking and prototyping methods. Review student work, provide feedback, and collaborate with instructors and program management. Strong UX/UI and product design experience, including user research, interaction design, and visual design, is required. Proven ability to teach and mentor learners with diverse backgrounds is essential. Native-level or minimum C1 level English speaker.