java English-speaking jobs in Mainz

Operator role involves packaging and quality control of drug-coated catheters and stents in cleanroom conditions. Responsibilities include coating processes, continuous improvement, and materials management. Requires completed vocational training and very good German skills.

Surveyor role involves inspecting ships during construction and service in Germany's North-East Area. Responsibilities include interpreting regulations, project control, and assessing work value. Requires a degree in marine engineering or naval architecture.

Expert in Semiconductor Metrology & Process Control drives development and optimization of advanced measurement solutions for semiconductor and MEMS technologies. Develop, qualify, and maintain electrical and optical measurement methods.

For our Primary School in Hamburg we are looking for a motivated and qualified Teaching Assistant (part-time/full-time, starting 01.01.2027).

Senior Manager to improve automotive warranty and services offerings. This role involves leveraging data and technology to enhance products, optimize programs, and drive revenue across European entities. Requires 5 years of relevant experience.

The Brand Ambassador Germany translates advocacy strategy into local execution across Germany. This role builds relationships in the on-trade, supports bartender education, and delivers premium brand experiences. Fluent German and strong English are required.

Director Legal & Compliance Central Europe provides strategic legal and compliance counsel. Responsibilities include developing regional strategy, overseeing regulatory compliance, and managing risk across the life science industry. Requires a law degree and 8-10 years of relevant experience.

Marine & Offshore Surveyor role involving ship and equipment surveys in Germany's North-East Area. Requires BSc/MSc in marine engineering or naval architecture and 3+ years of relevant technical experience.

Working Student Sales supports sales activities, including CRM data quality, lead generation, and quotation preparation. Requires business administration studies, fluency in German and English, and strong teamwork.

Deliver technical product training across the Resideo portfolio, focusing on heating and hydronic systems. Requires experience in technical training or teaching, and hands-on knowledge of HVAC products. Frequent domestic travel is required.

Service Technician for Wind Turbines performs on-site servicing and maintenance. Responsibilities include repairing turbines, analyzing errors, and documenting work. Requires vocational training in electrical engineering or similar fields.

Strassenbauer/in builds and repairs asphalt surfaces, prepares ground bases, and operates heavy construction equipment. Requires vocational training or 5 years of experience, German driver's license, and English A1/German B2 proficiency.

Filter Design Intern role in Advanced Cellular business group. Responsibilities include designing BAW/SAW Acoustic Filter components, contributing to laminate integration, and running circuit/EM simulations. Requires MS or PhD in Electrical Engineering with RF/Microwave focus.

Working Student Sales role supporting sales activities in an international business environment. Responsibilities include CRM data quality, lead generation, quotation preparation, and order processing. Requires German and English fluency.

System and Instrument Functional Chain Engineer coordinates IFCT activities, supports instrument data processing, and develops engineering tools for complex space systems. Requires 8+ years in System Engineering for LEO missions.

Senior Machine Learning Engineer to design and deploy ML/AI for GeoAI in humanitarian applications. Requires expertise in ML/DL, MLOps, and geospatial data.

Working Student Sales supports sales activities, including CRM data quality, lead generation, and quotation preparation. Requires business administration study, German and English fluency, and strong teamwork.

Develop device testing at wafer, die, and module levels for optoelectronic and sensor products. Define test requirements, develop hardware/software, and optimize test packages. Requires a Master's/PhD in Electrical Engineering or Physics with 3+ years in semiconductor testing.

Lead Business Solution Architect for SAP FICO, focusing on S/4HANA and R2R. Requires fluency in English and German. This B2B freelance role involves hybrid work with occasional travel to Southern Bavaria.

Macroeconomist needed to support economic research and investment strategy. Responsibilities include global macroeconomic research, forecasting model development, and analyzing central bank decisions. Requires 2-5 years of experience and strong quantitative skills.