java English-speaking jobs in Mainz

Senior Test Engineer needed for Digitalization team in Ulm. Develop test automation framework, ensure software quality, and plan/coordinate testing activities. Requires a Computer Science degree, 4+ years testing experience (ISTQB certification), and programming/scripting skills (Python, Playwright, API testing, CI/CD). Strong communication skills in German and English are essential. Experience in load testing, pentesting, or bus communication is a plus.

Lead and develop global Medical Affairs Operations and Excellence, driving operational excellence, digital transformation, and efficient execution of medical activities. Manage a team, implement digital tools, and ensure compliance across global medical operations.

Administers centrally operated applications for the electronic judicial file, electronic text system, and related cross-functional procedures. Performs error analysis, troubleshooting, and system optimization within the Lower Saxony judiciary. Contributes to IT projects for software integration and future IT solutions.

Experienced project architect to plan and develop sophisticated architectural projects for renowned clients. Focus on contemporary, sustainable construction and LPH 2 to 5 phases.

Senior Clinical Research Associate to coordinate and monitor clinical trials. Requires 3+ years of on-site monitoring experience, ICH-GCP, EU, and FDA knowledge, and fluency in German and English.

Middle Distillates Trader needed for a well-established energy trading company. Manage and grow a physical trading book focused on NWE/ARA or Mediterranean markets. Trade across middle distillates (e.g., gasoil, jet, diesel) and build relationships with suppliers, end-users, and brokers. Minimum 3 years' experience trading middle distillates in Europe required.

Senior Architect to join a Berlin-based design studio specializing in high-end fashion and retail projects. Must have a Master's degree in architecture, 8-12 years of experience, and proficiency in Rhino, V-Ray, AutoCAD, and Adobe Creative Suite.

Provides comprehensive HR operational and administrative support across the employee lifecycle in Germany. Ensures legal compliance, operational excellence, and a positive employee experience.

Supervises and motivates sales associates to deliver exceptional customer experiences and achieve sales targets. Manages retail staff, ensures visual merchandising guidelines are followed, and maintains a safe working environment. Assists with store operations, including opening and closing procedures, and administrative tasks.

Ophthalmologists (m/f/d) are sought for positions throughout Germany. Responsibilities include general ophthalmological examinations and treatments, visual acuity tests, preventive medical check-ups, and screening tests. The environment offers modern outpatient treatment infrastructure, administrative relief, and opportunities for professional development.

Plant Manager / Operations Director to lead a complex production environment. Full site responsibility to introduce structure, improve efficiency, and drive operational performance.

Data Engineer needed to build and maintain data infrastructure, develop ETL/ELT pipelines, and collaborate with data science and business intelligence teams. Requires Python expertise, experience with AWS, and strong communication skills.

Provides procurement support to Operations Directors, Project Managers, and other professionals. Manages project, small works, service, and LSP procurement activities. Executes day-to-day procurement activities for materials, equipment, and subcontracted services.

Conduct cutting-edge research in computer vision for autonomous driving, aiming for high-impact publications. Drive group growth by securing third-party funding. Mentor PhD, Master's, and Bachelor's students.

Leads and operates a new monoclonal antibody manufacturing unit, encompassing clinical and future commercial GMP production. Builds and manages a team of up to 50 employees, ensuring compliance with GMP, EHS, and quality standards. Drives operational readiness and smooth transition from project to routine manufacturing. Requires a university degree in a natural science discipline, several years of GMP biopharmaceutical manufacturing experience, and proven leadership skills.

Wave Optics Design Expert sought for research and development of HOEs and metasurfaces for optical displays and automotive LiDAR. Requires PhD in Optics and experience designing HOE or metasurface devices. Proficiency in optical design/simulation tools is essential.

Quantitative Analyst to develop hedging strategies, price energy products, and support strategic decision-making in renewable energy.

Implement and optimize SAP S/4HANA Public Cloud solutions for customers in the public, energy utilities, and manufacturing sectors. Conduct Digital Discovery Assessments, activate SAP Best Practice Scope Items, and collaborate with cross-functional teams. Provide expert guidance throughout the project lifecycle, from requirements gathering to go-live support.

Experienced Managing Director sought for a specialized business unit focused on digital infrastructure services. Full P&L responsibility, operational leadership, and strategic development within a fast-growing organization. Proven experience in infrastructure, engineering services, or related fields required.

The Research Lead will define and advance the organization's strategy in multimodal cognitive data fusion and Human-AI modeling. This role involves designing and conducting experiments to validate cognitive inference models and developing AI models for wearable devices. The ideal candidate has expertise in neurocognitive data analysis, machine learning, and computational modeling.