freelance English-speaking jobs in Bielefeld

Technical Support & Sales Specialist for the automotive aftermarket. Provides technical support, handles customer inquiries, and develops sales opportunities. Requires a technical background, strong communication skills, and fluency in German and English.

Develop and implement product and business plans, increase sales and market share, and lead long-range product planning for assigned product lines.

Support marketing projects and campaigns for the Grid Solutions business line. Responsibilities include content creation, event organization, and marketing material development.

The University of Bonn seeks a W3 Professor for Theoretical Physics of the Strong Interaction. The successful candidate will investigate strongly interacting quantum systems using non-perturbative methods and contribute to existing research initiatives. Teaching responsibilities include physics lecture courses and seminars at all levels.

Manage and optimize display campaigns across GDN, Native, and Programmatic platforms. Ideate creative concepts, conduct A/B tests, and analyze campaign performance. Monitor key metrics, provide optimization recommendations, and stay current on industry trends.

Development Engineer (m/f/d) for digital circuit development in the semiconductor industry. Requires a completed degree in electrical or computer engineering and experience in IC design, preferably in the automotive sector. Knowledge of (System)Verilog and digital backend flow is essential.

Senior Process Engineer responsible for product capacity, quality, energy efficiency, and environmental regulations of process plants. Manages complex engineering projects, coordinates with stakeholders, and develops custom procedures. Requires a successful engineering degree and extensive process engineering experience.

Solution Architect for Microsoft Dynamics 365, Azure Ecosystem & PowerPlatform. 3+ years experience designing, implementing, and integrating Microsoft Dynamics 365 solutions. Strong knowledge of Azure, PowerPlatform, and integration tools. Excellent communication and customer consulting skills.

Customer Onboarding Specialist will guide German-speaking customers through the adoption of a SaaS platform, ensuring successful property setup and activation. This role involves training, technical configuration, and problem-solving to optimize customer experience and drive bookings.

Sales Assistant needed for Citees store in Cologne. 30 hours per week, rotating shifts. Previous customer service experience and English proficiency preferred. Responsibilities include advising customers, handling sales transactions, and supporting inventory management.

Full-stack developer intern to build intelligent, scalable applications for the energy industry. Collaborate with cross-functional teams to design, build, and deploy machine learning models. Develop and maintain full-stack applications supporting AI dashboards and tools.

Design and build scalable data pipelines, automate insight delivery, and empower AI workflows. Expertise in data engineering, Python, SQL, API development, cloud platforms, and DevOps is required. Experience with AI/ML libraries and a passion for innovation are essential.

Regional Sales Manager for DACH region. Develops and executes sales strategies to maximize revenue growth and market share. Manages customer activities, identifies target customers, and builds relationships. Requires fluency in German and English, proven sales and management experience in the electronics industry, and strong relationship-building skills.

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. Commission customer systems (in-house, remotely, and occasionally on-site). Provide first and second-level product support.

Technical Services Manager will establish and specify primary processing parameters for product prototyping and commercial manufacturing. Responsibilities include setting up process control, qualifying new processing lines, and scaling up new technologies. Requires a university degree, at least 5 years of experience in the tobacco or FMCG industry, and fluency in English.

Provides support to the Buying team as a 1-year maternity cover. Compiles financial data, analyzes trading reports, and supports order sheet entry. Assists with vendor communications, travel planning, and product launches. Requires a degree in a relevant field, strong analytical skills, and excellent communication skills in English.

Business Analyst needed for Mortgage product development. Collaborate with stakeholders to gather and document business needs, translate them into technical requirements, and support solution implementation. Experience in IT analysis, solution design, and stakeholder management required. Strong communication skills in German and English are essential. Banking background is a plus.

Founding Account Executive to build the DACH market for a highly profitable AI-powered EdTech scale-up. This role involves hunting for new business, navigating the German public sector, and building the localized sales engine.

Steer and oversee strategic Venture activities for water line integrity, developing and implementing market, business, and service strategies. Drive progress, ensure service scalability, and provide market requirements for development teams. Manage team members, collaborate with stakeholders, and achieve defined goals within budget and time constraints.

Leads global strategy and development for the Industrial Air product portfolio. Translates market insights into product requirements and drives the product roadmap. Collaborates with sales, engineering, R&D, and operations to execute the product strategy.