student English-speaking jobs in Gelsenkirchen

Develop and manage projects, sell Awin products to publishers, and drive business development. Collaborate with sales and marketing teams to identify opportunities, build customer relationships, and implement best practices.

Office & Administration Manager needed for international company in Germany. Manage office operations, support accounting, handle HR administration, and assist expatriates. Requires 1-3 years of experience in office administration, some accounting knowledge, and proficiency in MS Office.

Senior Verification & Validation Engineer will own the end-to-end V&V strategy for autonomous interceptor systems. Responsibilities include translating requirements into testable criteria, designing and executing V&V activities across simulation, software, hardware, and system levels, and validating system behavior under real operational conditions.

Commissioning Manager for HVDC solutions. Develop, test, and validate hardware and software for global energy projects. Ensure high-voltage equipment and control systems meet standards before deployment.

Senior Engineer for Optical Design will develop next-generation Augmented Reality (AR) systems. Develop software tools for optical design and analysis, prototype waveguide and component concepts, and design experiments. Requires MS in Optical Engineering or related field, strong Python programming skills, and proficiency with optical simulation tools. Experience with Monte Carlo tolerancing, sensitivity studies, and algorithmic analyses is desired.

Freelance AI trainer needed to design computational chemistry problems requiring Python programming. Must have a chemistry degree, Python proficiency, and experience with numerical methods in chemistry.

Lead and manage customer relationships for the Regensburg site, ensuring transparent communication and timely updates. Drive the professionalization of Customer Service, establish processes and tools for order tracking and complaint handling. Lead and develop the Customer Service & Commercial management team, negotiate site-level commercial agreements, and represent the site in customer discussions.

Category Manager will own the end-to-end category management process for consumer electronics, developing strategies with suppliers and analyzing market data.

As Engineering and Design Manager, you will ensure efficient project planning and production, adhering to budget and schedule. You will coordinate interfaces between project disciplines, manage design reviews, and support project management in proposal preparation.

Category Leader will define and execute category strategy for industries such as Fashion, Beauty, and Consumer Electronics. Responsibilities include leading a team of Business Development Managers, onboarding major brands, and driving category P&L performance. Requires 5+ years of experience in Business Development, Category Management, or a similar role, with a proven track record of onboarding high-profile brands. Must be a C1 or native German speaker with strong English communication skills.

Support Revenue Managers in day-to-day revenue management activities across a hotel portfolio. Analyze hotel performance, market trends, and competitor behavior. Monitor performance by segment and channel, identifying risks and revenue opportunities. Prepare analyses, reports, and presentations for revenue strategy and performance meetings.

Manager / Senior Manager will support clients in energy and infrastructure sectors with strategy, operations, and M&A activities. Responsibilities include leading projects, developing strategy, and collaborating with cross-functional teams. Requires a Master's or Ph.D. and 5-8 years of experience in infrastructure strategy, transformation, or asset management.

The Jena School for Microbial Communication (JSMC) and the Cluster of Excellence ‘Balance of the Microverse’ are seeking Doctoral and Postdoctoral Researchers to commence in 2026. Successful candidates will have a Master’s degree or PhD in Natural or Life Sciences and a strong interest in microbial communication research.

Intern in Purchasing & Supplier Development will gain hands-on experience in analytical, digital, and operational initiatives. Responsibilities include developing tracking tools, designing dashboards, and preparing data analyses.

Demand planning specialist needed to manage daily demand planning activities, create forecasts, and support annual budget planning.

heo is seeking a motivated individual to begin an apprenticeship as a digital and print media designer specializing in print media. The successful candidate will design print and digital media, edit images, create layouts, and collaborate on campaigns. Applicants should be familiar with Adobe CC programs, possess strong German and English language skills, and demonstrate creativity and attention to detail.

Own the performance of the German branch network, including cost structure, operational efficiency, and output. Lead and develop cross-functional teams, drive network optimization, and ensure alignment between local execution and global strategy.

Senior Software Architect leads projects from technical estimation through implementation and deployment. Develops technical strategies, consults with clients, and utilizes modern tooling to build and deploy cloud applications. Requires 5+ years of experience in building digital products, including 2+ years in a leading architectural or technical consulting role.

Legal Counsel needed for a fast-growing international digital group. Provide legal guidance to Product, Growth, and Commercial teams on partnerships, marketing deals, and SaaS contracts. Develop legal templates, playbooks, and workflows to streamline processes and manage risk.

Intern will support the Global Marketing and Communications team with content creation, project support, and research. Responsibilities include creating content for internal and external channels, supporting marketing initiatives, and assisting with events.