java English-speaking jobs in Mainz

Sales Supervisor to support sales teams in achieving performance targets across Germany and Switzerland. This role involves daily execution, customer focus, and driving results for technical sales territories.

Associate Manager Regulatory Affairs for a temporary role in the medical device industry. Key duties include product approval in new countries, managing technical documentation, and monitoring standards. Requires experience in regulatory affairs (EU and RoW).

Clinical Scientist to own radiopharmaceutical trial lifecycle from protocol to regulatory submission. Execute Phase 1-3 trials, manage sites, and conduct in-depth scientific research. Requires Master's/PhD and 5+ years in clinical development.

Talent Acquisition Specialist to manage the end-to-end recruitment lifecycle for highly qualified engineers, scientists, and Life Sciences professionals across Germany and the DACH region. Active sourcing is recommended.

Experienced Freelance Clinical Trial Liaison needed for EMEA support. Responsibilities include site contact, training, and driving trial execution and enrollment. Requires 6+ years of clinical operations experience and strong English/German skills.

Lead medical strategy and scientific engagement for rare diseases across investigational and approved therapies. Drive evidence generation and build scientific partnerships with external stakeholders. Requires advanced scientific degree and 8+ years of Medical Affairs experience.

Lead the financial backbone of a global energy software platform. This role involves shaping financial strategy, driving reporting, managing liquidity, and building scalable structures across finance, accounting, and legal.

Vice President, Trade Finance within a Global Bank. Manage a portfolio of Investment Grade Corporate Banking Customers, providing sophisticated solutions. Focus on improving share of wallet and developing new clients using advanced financial and credit assessment skills.

Seeking experienced Microsoft Office Apps Customer Engineer with 10+ years in customer-facing roles. Focus on empowering employees and driving success with Microsoft Teams and Office Suite/M365 Apps. Requires strong technical support and communication skills.

Own commercial steering for B2B growth by building metrics, forecasting, and target logic across four verticals. Drive insights into growth potential and resource allocation. Requires 4-7 years in commercial analytics or similar.

Senior Fullstack Engineer builds an AI platform automating security reviews. Focus includes backend AI integration, data flow ownership, and consultant-facing UI development using Python, FastAPI, and React.

Develop and optimize innovative non-alcoholic beverage recipes for Europe. This role involves leading prototype creation, supervising initial production, and ensuring compliance with food legislation. Requires a relevant degree and 3-5 years of experience.

This Dual Study Program offers a state-recognized Bachelor's degree while providing practical business experience. Candidates will learn about finance, operations, and project coordination. German B2 level skills are mandatory.

Support technical planning and development of photovoltaic projects by creating PVSol plans, layouts, and technical analyses. This role involves preparing preliminary designs and conducting project evaluations. University students in technical fields are sought.

HR Intern supporting recruitment, onboarding, and HRBP tasks. Responsibilities include administrative asset management, procurement, and vendor coordination. Requires working proficiency in English and German.

This leadership role requires a qualified German Immigration Lawyer to manage corporate client relationships, drive commercial development, and lead immigration strategy. The partner oversees complex matters and team performance.

Senior/Lead Data Scientist focusing on Applied Statistics and Machine Learning. Deliver end-to-end projects for customers across various industries, applying statistical rigor to real-world, complex datasets. Requires strong Python and ML framework skills.

Lead elderly American travelers on river cruises in the Rhein-Main-Danube area. Provide informative talks on history and culture while conducting guided tours and managing logistics. Fluent English is required.

Lead global tax operations, driving governance, standardization, and continuous improvement of tax processes. Requires business administration degree, project/change management experience, and knowledge of taxation and SAP.

Seeking a Certified German Teacher with C2/native-level proficiency to deliver online lessons. Responsibilities include customizing materials, providing feedback, and tracking learner progress in corporate environments. Requires 2+ years of adult teaching experience.