freelance English-speaking jobs in Bielefeld

The Sales Representative will sell Winkhaus access control products (mechanical and electronic profile cylinders) in the Walloon area. They will advise customers, develop the customer portfolio, and achieve sales targets.

The Baden-Württemberg Municipal Pension Association seeks a System and Network Administrator to administer and optimize a complex network environment. Responsibilities include troubleshooting, security project implementation, and documentation. Applicants require a relevant degree or IT specialist training with experience in routing, switching, and network security. Business fluency in German is required.

Working Student (m/f/d) will support the international Marketing team by maintaining and updating website content, ensuring the quality of French web texts, and participating in meetings.

Leads a team of software development engineers, security engineers, and data scientists to develop security solutions at scale. Manages the definition and development of multi-tier web services and has experience with the full software development life cycle.

Senior Full-Stack Engineer to develop the next generation of financial user experiences. You will design, implement, and test new features using TypeScript in a NodeJS environment with ReactJS. Experience with RESTful APIs, continuous integration, and AWS is required. Fluent English is necessary.

This role involves maintaining and extending the company's cloud-based Business Intelligence environment, including Power BI, SSRS, and SSAS. Responsibilities include ensuring reliable operation of BI services, managing Azure and Google Cloud Platform environments, and processing large datasets. The ideal candidate has five years of experience in database DevOps engineering, software development, or data engineering with a strong background in Python or Java. Experience with Big Data Cloud Services, Microsoft Azure, and SQL is required.

Design, build, and run scalable data backends for AI-driven products. Bridge the gap between data science and production, automating and optimizing AI APIs.

As Country Medical Director, you will represent Regeneron in Germany for all Medical Affairs and Clinical Development activities. You will shape the national medical strategy, lead scientific engagement with external experts, and provide medical support to clinical operations.

Become a part of a team leading the AI-first data revolution. Learn and contribute to our internal knowledge base, marketing, and sales processes. Support recruiting, operations, and people operations. Manage projects and potentially grow into a chief-of-staff role.

Power BI Developer needed for a 3-6 month project. Migrate existing Excel reports to automated Power BI dashboards. Build data models, queries, and refresh processes. Connect data sources and work with stakeholders to refine reporting needs.

Implement security controls and tools for application security testing, perform vulnerability assessments, and collaborate with developers to remediate security issues.

Shape the future growth of the Activia brand within the gut health segment. Support innovation projects, identify growth opportunities, and lead the brand's Instagram content strategy. Deliver market analyses and manage the Activia budget.

The Venture & Innovation Analyst researches emerging technologies, analyzes market trends, and supports innovation strategies. The role involves project execution, monitoring progress, and collaborating with various teams.

Digital & Area Sales Manager will develop and execute digital sales strategies for the meso'me brand and international sales strategies for all MD Skin Solutions brands. The role includes e-commerce management, international market development, client relationship management, and reporting.

Lancaster University Leipzig seeks a teaching-focused Assistant Professor in Computer Science to deliver undergraduate and graduate level courses. The position includes curriculum design, assessment, lectures, seminars, and administrative duties. Applicants must hold a PhD in Computer Science or a related field and have experience in teaching.

Experienced Clinical Research Associate needed for full-service CRO. Medpace provides Phase I-IV clinical development services to the biotechnology, pharmaceutical, and medical device industries. Sign-on bonus up to 7,500 EUR based on experience.

Develop and maintain IT infrastructure, including CI/CD pipelines and cloud resources (AWS, Azure). Write scripts and tools for agile software development, evaluate new technologies, and ensure secure and stable operation of high-performance systems.

Electronic Control System Engineer needed for substation control system commissioning, testing, and on-site support. Experience with SCADA, HMI, networks, cybersecurity, and IEC protocols required.

Responsible for preparing and consolidating group and annual financial statements, including interim reports. Leads management of participations and ensures compliance with accounting policies. Drives continuous improvement of financial processes and oversees consolidation software systems.

Android developer needed for Job Search and Recommendations team at XING's Porto office. Collaborate with cross-functional teams to deliver new features and build a great user experience. Must have experience with Kotlin and Android development, and be comfortable with Jetpack Compose and the Classic UI frameworks.