java English-speaking jobs in Mainz

Develop and maintain methods, operating sequences, and processes for semiconductor manufacturing equipment. Analyze performance data to reduce downtime and improve reliability. Collaborate on tool installation, qualification, and ramp-up activities.

Manage a portfolio of key automotive accounts, driving new business development and leading sales activities. Prepare and negotiate customer contracts, collaborate with internal teams, and ensure compliance with industry standards.

Business Development Representative for the DACH region. You will represent XM Cyber, a leader in Continuous Exposure Management, and generate leads by contacting and developing relationships with potential customers.

Senior AI Engineer to design, build, and deploy production-ready AI solutions. Lead teams, translate business challenges into technical solutions, and work with Python, ML frameworks, and cloud platforms. Requires 4+ years of experience in software, ML, or AI engineering, experience leading projects, and strong communication skills in English and German.

Senior Production Engineer – Avionics leads the assembly, testing, and industrialization of avionics and wiring harness components. Responsible for transitioning from prototype to high-volume production, ensuring avionics systems meet performance, safety, and reliability requirements. Collaborates with design engineers, R&D, and stakeholders to integrate harness assembly processes and define test procedures. Owns cost and schedule planning for avionics production, including forecasting, optimization, and continuous improvement.

Drive and shape financial activities and accounting processes for the German legal entity. Manage statutory accounting, reporting, and compliance with BilMoG. Lead a small team and manage supplier contracts.

Senior Director to lead analysis of alternative investments, focusing on private markets. Responsibilities include developing new products, maintaining existing products, and representing Scope to issuers, investors, and the media. Requires 8+ years of experience in the financial industry, a Master's degree, and fluency in German and at least one other major European language.

Open and operate the Stranger Soccer business in Stuttgart. Recruit, train, and lead a team to run football games at venues. Engage in sales and marketing to introduce the platform to customers.

Enterprise Account Executive will drive net-new sales and expansion within a defined territory. Responsibilities include identifying and qualifying prospects, managing complex sales cycles, and building relationships with key stakeholders.

Senior Site Process Engineer will drive process stabilization and standardization across European Fulfillment Centers. Responsibilities include leading continuous improvement initiatives, implementing technological advancements, and minimizing performance variation.

Develop reusable verification environments for Mixed-Signal ASICs used in consumer applications. Apply leading-edge verification methods for functional and formal verification. Contribute to the concept, design, and qualification phases of products.

The International Research Training Group C4LaNd offers 24 doctoral positions addressing land use challenges related to food, energy, and materials. Successful candidates will hold a master's degree in Economics, Social Sciences, or Natural Sciences and demonstrate proficiency in relevant research methods.

Technical Sales Account Manager will execute product strategies, develop customer relationships, and identify growth opportunities within the Industrial Lubricants Additives market.

Senior Microelectronics Engineer to design, develop, and validate electronics and embedded solutions for telecommunication measurement systems. Responsibilities include leading microelectronic circuit design, developing embedded firmware, and ensuring hardware and software integration.

Own and manage the company-wide Internal Control System (ICS) and risk strategy and corporate standards for the Risk Management System (RMS). Define, maintain, and enhance RMS/ICS standards, methodology, and governance. Lead and develop the RMS and ICS team, monitor risk assessments, and drive control automation and digitalization. Serve as the primary contact for the management board, supervisory board, and Internal and External Audit.

Working Student supports the smooth operation of the Berlin office, ensuring a positive and functional workspace. Tasks include managing office supplies, coordinating with vendors, onboarding new team members, planning team events, and providing general support.

Procurement Support Specialist for indirect materials needed for a 12-month temporary position. Assists with global sourcing activities, supports technology departments, and coordinates communication with partners. Requires a business apprenticeship with further education and experience in purchasing or a comparable support function. Experience with SAP O25 Purchasing Module is essential.

Senior Global Brand Manager Women's Health will develop and implement brand strategies and campaigns for Women's Health products. Responsibilities include market research, brand identity design, campaign management, and budget planning. Requires a proven track record in brand management, strong analytical skills, and experience in conducting market research.

Assists in routine operation of the inorganic chemical laboratory, conducting tests on consumer products according to standard operating procedures. Performs sample preparation, analysis, and result calculation using instruments like ICP, XRF, and UV-Vis. Requires a Bachelor's degree in chemistry or related field and 1-2 years of experience.

Intern (m|f|d) - Research & Development - Stock Preparation. Support research and development projects in sustainable and efficient paper production. Develop, commission, and evaluate test rigs. Plan, execute, and evaluate experiments. Support external trials in paper mills.