java English-speaking jobs in Wiesbaden

Area: Faculty IV: School of Science and Technology | Job scope: part-time | Duration of employment: limited | Posting-ID: 7111 The University of Siegen is a modern university with an international orientation and a focus on interdisciplinary research.

Postdoctoral Researcher role focusing on Biomedical Semantics, Ontologies, and LLM Integration. Responsibilities include designing ontologies, knowledge graphs, and semantic data models for integrating biomedical data with LLM systems.

Field Technician responsible for planning, installing, and maintaining Wi-Fi, data, and telecom equipment across client sites. Requires IT/networking experience, project coordination, and a valid German driver's license for regional travel.

Lead the DRESDEN-concept Research Group SITES.AI, focusing on AI for environmental risk and sustainability modeling in cities. Requires expertise in machine learning, geoinformatics, and securing external funding.

Certifying B1/B2 Aircraft Technician performs aeronautical maintenance, gives technical instructions, and certifies work. Requires vocational training, AML (EASA Part-66), and experience with specific aircraft types.

Forward Deployed Engineer to bridge platform and users, turning needs into working software. Build end-to-end features, own agentic platform workflows, and be the technical face to users. Requires full-stack skills and LLM integration comfort.

The ION Endoluminal Sales Representative supports early adoption of the Ion platform for robotic minimally invasive care. This role involves building user programs, driving utilization, and becoming a clinical expert in relevant specialties. Requires 5+ years of sales experience and fluency in English and German.

Content Operations & Production Manager to drive a busy content and production function. Responsibilities include managing the content pipeline, planning schedules, owning workflow, and coordinating production logistics for shoots.

Lead the acquisition and management of a high-potential, family-owned SME in Germany through AIA's MBI Program. Requires 5+ years in general management with full P&L accountability and deep German business roots.

Business Development Representative for an AI coaching startup. Own the top of the funnel in DACH, generating qualified pipeline via cold calls, email, and LinkedIn. Requires 2-4 years of B2B SaaS outbound experience and business-fluent German.

Develop next-gen perception and multi-object tracking systems for autonomous systems in complex environments. Drive technical direction, design robust tracking pipelines, and deploy production-ready software on robotic platforms using C++ and Python.

Country General Manager accountable for commercial, financial, and operational performance of Berlin and Munich properties. Requires strategic leadership, revenue management expertise, and proven P&L ownership in premium hospitality.

From August 2026 our secondary school in Dreieich (near Frankfurt) is looking for a Mathematics Teacher (in part-time or full-time)

Working Student (m/f/d) to support the Marketing team in project management, social media management, and content creation. Responsibilities include managing communications overviews, assisting with marketing campaigns, and overseeing social media content.

Are you passionate about driving quality, operational excellence, and continuous improvement across global manufacturing operations? We are looking for a Multi-Site Quality Engineer (m/w/d) to act as the key link between Manufacturing Plants and Technical Control Labs.

Sales Representative II drives business development for spinal solutions in Baden Württemberg. Responsibilities include achieving sales targets, managing client relationships, and providing technical support. Requires relevant degree/experience and bilingual fluency.

Post-doc position in SFB 1759 focusing on the social dimensions of sample return missions. Research involves investigating psychological, ethical, and media aspects related to extraterrestrial life. Tasks include scale development, survey construction, and data analysis.

Warehouse Picker at Flink packs customer orders efficiently, checks stock and quality, and monitors refrigeration temperatures. Requires minimum age 18, a German work permit, and fluency in English or German.

Motivated Greek Tutors needed to provide personalized private lessons for all ages and levels. Responsibilities include teaching grammar, vocabulary, and communication skills. Strong Greek knowledge is required.

Engineer/Scientist to support accelerator physics for BESSY III. Tasks include planning and developing injection/extraction systems, designing pulsed electromagnets, and characterizing electromagnetic fields.