java English-speaking jobs in Mainz

Provides customer service and processes housing applications for military personnel and their families. Determines housing eligibility and conducts housing unit inspections. Assists with finding private rental housing and manages government-provided furniture and appliances.

Provides excellent customer service in German to regional clients, ensuring accurate data and timely publication of financial business reports. Manages dealer registration, supports training, and resolves customer queries. Collaborates with internal teams and external clients to achieve operational efficiency and customer satisfaction.

Working Student will support the execution of retention marketing strategies across multiple channels, including website, app, and email. Responsibilities include assisting with A/B testing, campaign analysis, and performance reporting. The ideal candidate has a general understanding of e-commerce, online marketing, and UX, with a strong affinity for data and experimentation.

Provides administrative support to the Sales Director and field sales staff. Manages customer relationships, fills sales funnels, and coordinates marketing activities.

Gain practical work experience as a Geology, Geosciences, or Geophysics intern at Baker Hughes. Collaborate on projects, learn internal software, and apply HS&E standards. Must be enrolled in a relevant degree program and possess strong analytical and teamwork skills.

Senior Legal Counsel to join a leading multinational industrial group. Draft, review, and negotiate contracts, advise on legal risks, and support cross-border projects. 8-10+ years of commercial law experience, full German legal qualification, and fluency in English and German required.

Research Associate for a project focused on the synthesis and characterization of nanocrystals and their assemblies, with a focus on function, switchability, and chirality. Requires a university degree, doctorate, and prior knowledge in nanochemistry, electrochemistry, optical spectroscopy, and electron microscopy.

Senior/Clinical Research Associate (CRA) to oversee and manage clinical trial activities ensuring protocol, regulatory, and industry standard adherence.

Senior Research Scientist - Analytical Development supports Elanco's Technical Development organization. Responsibilities include developing analytical and dissolution methods, interpreting data, and collaborating with manufacturing and regulatory representatives. Requires a PhD with 5+ years of experience or equivalent experience in pharmaceutical development, with expertise in chromatographic, spectroscopic, and dissolution method development.

Define and evolve the global brand strategy for VARTA and additional automotive aftermarket brands. Translate global brand strategies into locally relevant activation plans. Lead the strategic repositioning and activation of VARTA globally. Develop compelling brand narratives, value propositions, and activation toolkits. Drive integrated activation campaigns across Europe.

Develop and execute sales strategies for distributor, wholesale, and workshop levels in North Germany. Build and maintain customer relationships to achieve sales targets. Identify market opportunities and collaborate with the DACH team and European DENSO Aftermarket organization.

Manufacturing Engineer will develop, maintain, and manage manufacturing documentation and technological process standards. This role involves planning, coordinating, and monitoring manufacturing projects while designing, implementing, and improving cost-effective manufacturing technologies. The Manufacturing Engineer will analyze, support, and optimize existing production processes, specify and implement manufacturing equipment, and collaborate with global manufacturing teams.

Project Manager plans, directs, and ensures successful project outcomes utilizing assigned teams, standards, and tools. Manages project execution, performance, and safety, collaborating with internal and external stakeholders. Communicates project milestones, status updates, and escalations.

Risk Analyst - Client Underwriting (m/f/d) will manage customer credit risk for Buy Now Pay Later products across Europe. Responsibilities include analyzing and optimizing consumer portfolios, collaborating with cross-functional teams, and supporting the development of risk steering platforms.

The Student Assistant supports the Facility Manager in administrative and operational activities, contributing to a safe and organized work environment. This role provides practical experience in facility management, vendor coordination, event logistics, office administration, and health and safety processes.

Manages 100-200 mid and mass market accounts, ensuring positive customer experience and revenue growth. Handles renewals, relationship development, and upsells. Supports assigned clients, responds to inquiries, and tracks renewals. Requires a 4-year degree and 2-4 years of related experience or equivalent work experience. Microsoft Suite experience required, Salesforce and software sales experience preferred.

Supports the confidentiality, integrity, and availability of Yogi's information systems across European operations. Monitors, analyzes, and responds to security alerts, incidents, and suspicious activity. Administers and supports endpoint, identity, and access security controls. Investigates reported security issues and coordinates resolution. Contributes to ISO 27001, NIS2, and GDPR compliance activities.

This is a 6-month working student/intern role focused on outbound sales and lead generation for an AI-native energy platform. Responsibilities include cold outreach to German industrial SMEs, lead sourcing, and pipeline management within a CRM tool.

Experienced Product Compliance Manager needed to manage post-market compliance events, including customer complaints, product performance issues, and field incidents. Ensure regulatory compliance and act as a liaison for national market surveillance authorities. Coordinate investigations, identify trends, and provide internal training. Requires a degree in a related field and 5+ years of experience in product compliance or regulatory affairs.

The Marketing and Sales department at the Villingen-Schwenningen site seeks a student for a 6-month mandatory internship starting in early September 2026. The position involves contributing to and managing projects related to International Sales – Commercial & Special Vehicles, market intelligence, competitive monitoring, and supporting management presentations.