database administrator English-speaking jobs in Mülheim

Working Student – Client and Agency Partnerships will support the team in providing client service, conducting market research, and managing reporting and administrative tasks. The ideal candidate is a currently enrolled student with an interest in digital media, marketing, and data analysis.

Strategic Buyer (m/f/d) will define and execute procurement strategy, optimize costs and processes, and build relationships with international suppliers. Requires a bachelor's degree, 3-5 years of purchasing experience, strong negotiation skills, and proficiency in Excel.

Lead and develop a B2B sales team focused on new logo acquisition across the DACH region and international markets. Drive revenue growth and implement scalable GTM strategies.

Payroll Specialist needed for part-time role (50%) in Hamburg. Manage monthly payroll for 250 employees across two locations, ensuring compliance with legal and regulatory requirements.

Manages the visual identity of J&T Express in Germany, ensuring brand consistency across all materials and operational environments. Coordinates with operations, procurement, and local teams to implement branding projects. Adapts global brand standards to the German market.

Project Manager needed for multiple Telecoms/Data Centre projects in Germany. Will liaise with stakeholders, support project planning, and travel to various sites. Requires transferable electrical engineering qualifications and industry experience. Fluent English and German are essential.

Site Reliability Engineer to implement and improve Just-In-Time (JIT) access solutions. Collaborate with the Cloud Control team to integrate security policies into infrastructure provisioning. Automate authorization flows for regulatory compliance.

Experienced Firewall Maintainer to join the second line ICT GRC team. Define, maintain, and enhance firewall governance controls in line with internal policies, DORA, and BaFin requirements. Conduct second line reviews of firewall configurations and network segmentation to ensure compliance and risk reduction. Challenge and assess the effectiveness of first line firewall controls, including rule review, change management, and logging or monitoring processes.

Partner Success Manager for German residents. Onboard and train new partners, build relationships, and support complex sales processes. Analyze market signals and translate them into product improvements. Fluent in German, with Dutch or English. Proven track record in Partner Success, Customer Success, Solution Engineering, or sales of complex software solutions.

Process Engineer responsible for analyzing, developing, and improving production processes. Duties include coaching on problem solving, creating standards to eliminate issues, and executing product tests. Requires a bachelor's or master's degree in a technical field and strong analytical and communication skills.

The Senior Data Modeler defines and governs enterprise-grade data models, translating business concepts into scalable data structures. This role designs models for cloud-native platforms, ensures interoperability, and mentors data analysts. Responsibilities include leading data modeling workshops, enforcing standards, and collaborating with architects and engineers.

JD.com seeks a Global Category Manager to introduce and operate brand merchants, retailers, and e-commerce platforms worldwide. The role involves managing key performance indicators, negotiating with suppliers, and expanding new global suppliers.

Customer Service Representative will manage international customer relationships, ensuring smooth order fulfillment and customer experience. Responsibilities include communicating with customers, coordinating shipping arrangements, and collaborating with internal and external stakeholders. Requires experience in a similar role, excellent English communication skills, and proficiency in Microsoft Office. Experience in a commercial or supply chain role, automotive industry, or knowledge of SAP/Salesforce is advantageous.

Leads two teams (Key Account Management and Operations) responsible for developing marketplace partners, managing retail media activities, and ensuring efficient project execution.

PhD student to study microbial regulation of colorectal cancer development using mouse models, organoids, and sequencing technologies.

Online Tutor (m/f/d) needed for personalized, one-to-one online lessons across all subjects. No teaching experience required.

Oversees the organization, execution, and assessment of user training for internal staff and external clients on Biosensors Structural Heart products. Supports product implantation globally, focusing on training during center openings and certification processes.

Supply Officer (m/w/d) manages material flow, coordinates with suppliers, and drives process improvement. Responsibilities include demand communication, order placement and tracking, delay analysis, and recovery planning. Collaborates with procurement, logistics, and production teams. Leads or participates in supply chain improvement projects.

Junior Foreign Exchange Trader will execute spot and forward trades, manage currency positions, monitor risk limits, analyze market trends, and assist senior traders.

Office Manager to support operations in Berlin. Responsibilities include administrative support, communication, executive support, financial processes, and additional operational tasks. Requires a Bachelor's degree, 3+ years of experience, fluency in English and Greek, and strong organizational and communication skills.