service English-speaking jobs in Siegen

Verus Libori Klinik seeks international psychotherapists with a Master's degree in Clinical Psychology to provide adult, child, and adolescent psychotherapy in a Black Forest clinic.

This full/part-time role at TUI BLUE Sylt, Germany, starting 01.03.2026, requires German fluency and certifications in Yoga, Functional Training, and Personal Training. You will lead group fitness sessions, plan activities, and engage with guests.

Support adjacent process areas (quality, development, production, logistics, investments) in the system relocation from SAP R3 to S4/HANA systems. Provide support, training, and project implementation expertise in SAP ERP/R3 and S4/HANA for FI- and CO-modules.

Chief of Staff Intern supports leadership team in talent outreach, recruiting, tax & legal operations, people operations, and office management.

Freelance lecturer to teach fundamental engineering software automation technology topics, including industrial automation systems, communication networks, sensor integration, and cybersecurity.

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

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

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.

Lead commercial legal strategy for a VC-backed technology company. Draft, negotiate, and execute commercial agreements, including customer, supplier, SaaS, and strategic partnerships. Advise leadership on legal risk, deal structure, and commercial decision-making.

Assist concept designer with trend, material, color, and product research. Digitalize color cards, mood boards, and keylooks. Support collection meetings, styling, and shootings. Create mood videos and presentations.

Senior Sales Trader sought for a leading energy and environmental commodities trading house. Focus on biomethane, renewable gas, and transport related environmental products in the DACH region. Drive commercial growth, originate new business, and manage key client relationships.

The Chief Financial Officer will partner with the CEO and Management Team to drive growth and business performance. Responsibilities include business planning, performance management, due diligence, budgeting, financial reporting, and providing commercial analysis.

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.

Global Marketing Manager will develop and execute global event and direct marketing strategies, including monitoring KPIs and ROI. Leads global event marketing efforts in collaboration with regional marketing managers. Develops and cultivates cross-functional relationships within ShowHeroes and with external partners. Requires a marketing or business degree and 2-3 years of relevant experience.

Designs, coordinates, and improves extracurricular learning activities at a coding education institution. Manages programs like soft skill training, technical workshops, and community initiatives. Communicates with students, alumni, and partners to ensure program clarity and engagement.

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.

Junior Legal Counsel sought for Group Corporate Legal team. Supports corporate and regulatory matters, including contract review, governance, M&A, and compliance. Requires 1-3 years experience in corporate law and financial regulation. Fluent in English and German.

Senior SAP AVC Consultant needed for a greenfield S/4HANA implementation in a service-driven manufacturing environment. Lead and configure Advanced Variant Configuration (AVC) within the SD environment, translating business requirements into functional solutions. Strong experience with AVC implementations and SD environments required. German language skills are a plus.

Global Commodity Manager for indirect materials (PSA, MRO, fluids, gases) in a metal processing company. Develop and implement procurement strategies, manage suppliers, and contribute to cost reduction initiatives.

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.