student English-speaking jobs in Gelsenkirchen

The GFZ is seeking a senior scientist to lead its Secondary Ion Mass Spectrometry (SIMS) user facility. Responsibilities include managing laboratory operations, advising scientists on SIMS applications, developing research strategies, and reporting on laboratory utilization. The successful candidate will have a PhD in the natural sciences, at least 5 years of experience with SIMS instruments, and expertise in mineralogy, crystallography, and sample preparation.

As a Solution Architect, you will translate business requirements into solution architectures, ensuring alignment with enterprise guidelines. You will support product family goals and analyze integration landscapes, ensuring seamless integration with systems like Workday and payroll platforms. You will actively participate in project work, share insights, and collaborate with stakeholders.

Jean&Len seeks a Head of IT to develop and evolve IT strategy, oversee IT infrastructure, and drive digital transformation. The role requires experience leading IT teams, managing ERP systems, and collaborating with business units.

ATIA Ltd seeks reseller companies to find clients needing IT systems, web applications, or ISO standard services. Partnerships offer 20-30% of project value or a markup on a base price.

As a Sales & Marketing Working Student, you will support the Go-to-Market team with daily sales and marketing activities, including lead management, CRM maintenance, KPI tracking, and campaign preparation.

Senior Brand Manager (f/m/d) OTC will manage a brand across multiple countries and be independently responsible for channel strategies in the D-A-CH region. Responsibilities include managing operational marketing, leading market research projects, and expanding the brand-specific e-commerce strategy.

Lead and establish a new Internal Audit function for a global manufacturing company. Execute audits, conduct risk assessments, and report findings to the Audit Committee and Senior Management. Significant experience in manufacturing Internal Audit and leading audit functions is required. Fluency in English and German is essential.

Lead and scale the Battery Control System (BCS) Product Team, developing reliable, high-performance systems for energy storage. Guide a cross-functional team of firmware, hardware, and testing experts. Foster a culture of clear ownership, pragmatic execution, and strong technical standards.

Develop scalable solution architectures based on Microsoft Dynamics 365 CE and Power Platform. Provide technical leadership, coach consultants and developers, and advise on technical solutions. Integrate Dynamics 365 CE with Microsoft products and third-party systems.

As an Applied AI Solutions Architect, you will be a technical advisor to large enterprises, helping them understand and integrate Claude into their technology stack. You will guide customers from discovery through deployment, leveraging your expertise to design scalable architectures and address complex business challenges.

Leads a distributed team of engineers focused on resolving software defects and delivering bug fixes for open source software. Manages team performance, provides coaching and mentorship, and collaborates with other engineering teams. Requires experience with software development using C, C++, Go, Python, and version control systems.

Lead a sales development team, manage performance, and design sales strategies to achieve KPIs. Develop team skills, optimize processes, and contribute to operational sales activities.

Senior IT Administrator responsible for the operation, administration, and development of IT infrastructure. Experience with Windows and Linux environments, Active Directory, and virtualization solutions is required.

Software Architect responsible for solution and integration architecture, technology selection, and support of development teams. Designs architecture roadmap, develops documentation, and leads software development projects. Requires deep knowledge of software development practices, web and cloud technologies, and microservice architecture.

Provides cost input for project evaluations, manages cost plans for development projects, and supports procurement strategies. Requires a Registered/Chartered Quantity Surveyor or Cost Engineer with 10+ years of experience in industrial, logistics, or real estate projects.

Experienced Senior Go Engineer needed for a growing digital start-up/scale-up. You will own core product development, collaborating with UX, engineering, and mobile teams. This role is mostly remote with occasional office visits. Requires B1+ German and fluent English.

Experienced IT Engineer needed to maintain, improve, and secure core banking systems for securities operations. Responsibilities include incident resolution, system enhancements, and supporting business processes. Requires 5+ years of experience with COBOL, SQL, JCL, DB2 or Oracle, Mainframe environments, and SWIFT financial messages.

Lead the design and deployment of AI models for personalization, pricing, search, and optimization across marketplace and fintech domains. Shape the strategic direction of data science, identifying AI/ML opportunities and championing the team's role in a rapidly advancing GenAI landscape.

Designs business and solution architectures in the automotive environment based on customer and user-specific business cases. Responsible for organizational developments and business process modeling, ensuring the realization and consistency of projects from theory to operationalization.

Senior Software Engineer will design, build, and maintain custom Ubuntu/Linux distributions for autonomous vehicle workloads. Responsibilities include optimizing ROS 2 DDS middleware, developing drivers for various vehicle interfaces, and implementing observability solutions.