java English-speaking jobs in Mainz

UPS Engineer (m/f/d) needed for Infrastructure Business Area Project Office. Collaborate with stakeholders to define system requirements, perform site surveys, and develop UPS system configurations. Integrate UPS systems with other power infrastructure, provide technical consultation, and act as a subject matter expert. Minimum 5 years of experience in UPS system design, integration, and maintenance required. Bachelor's degree in electrical engineering, systems engineering, or a related field.

Senior Technical Manager to lead technical delivery of complex identity management projects globally. Experience in secure identity systems, biometric solutions, and infrastructure projects required. Must have strong leadership, communication, and coordination skills. Fluency in English, German, and/or French preferred.

The Leibniz Institute of Virology seeks a highly motivated Postdoc to conduct research on respiratory virus pathogenesis under BSL-2 and BSL-3 conditions. The successful candidate will work independently, prepare animal experiment applications, and present research findings.

System and software test engineer to join a team focusing on silicon photonics testing. Responsibilities include designing, implementing, debugging, and executing tests for silicon photonics test equipment. Collaborate with development teams in Germany, China, and Japan. Bachelor's or Master's degree in Electrical Engineering, Computer Science, or a related field required. Experience in software and system testing, especially test automation and exploratory testing, is necessary. Good understanding of digital electronics and optical communication, Java programming language, and Linux operating system are also required.

Field CTO / Head of Technical Evangelism to lead technical conversations in enterprise sales cycles. Translate architecture into business value and build a team of evangelists. Must be comfortable speaking with CIOs and engineering teams.

Product Manager - Lignin Materials will own and steer the product portfolio, define specifications, and develop product strategies. The role requires experience in product management, sales, or application management in specialty chemicals or materials, with a strong commercial focus and knowledge of biomaterials, especially lignins.

The Senior Auditor supports the Internal Audit unit in enhancing and protecting organizational value by providing independent audit services. This role involves conducting risk-based audits at group companies globally, analyzing business processes, identifying risks, and developing audit programs. The Senior Auditor documents work steps, prepares concise audit results, and communicates them to senior management.

The Internal Audit unit seeks a Senior Auditor to conduct risk-based audits at group companies globally. The role involves analyzing business processes, identifying risks, developing audit programs, documenting findings, and communicating results to senior management.

Operate robotic platforms, monitor activities, and execute tasks according to procedures. Verify robot behavior, identify issues, and maintain operational records. Assist with robot setup, testing, and process improvement.

High-impact role within a CEO Office, acting as a trusted partner to ensure seamless executive operations at the highest level. You manage complex international schedules, high-level correspondence, and sensitive information with precision and discretion. Working closely with senior stakeholders, you enable strategic focus and drive efficiency in a fast-paced, global environment.

Senior Implementation Consultant guides customers through ERP implementations, analyzing manufacturing processes and configuring solutions. Requires strong ERP knowledge, experience leading projects, and understanding of industrial business processes. Must be comfortable working in a growing market and willing to travel. Native German and professional English skills are required.

Senior Kinaxis Consultant required to support a complex end customer project in the hi-tech/advanced manufacturing space. The successful consultant will work with French-speaking business stakeholders to understand Kinaxis pain points and identify solutions to improve value from the platform. Strong Kinaxis experience, fluent French and English communication skills, and business-facing consulting experience are required.

Senior Control Engineering & Modeling Engineer will monitor industry trends, develop technical solutions, and create dynamic system models. Requires a Master's or PhD in a relevant field and experience in control engineering, modeling, and simulation. Experience with MATLAB, Python, and AmeSim is preferred.

Designs, develops, and implements control systems for semi-automated to fully automated assembly equipment used in co-packaged optics assembly. Collaborates with internal and external teams to align and transfer product and process requirements. Runs assembly processes and pilot lines for new products.

As a Sales Stylist, you will provide exceptional customer service, share product knowledge, and assist with store operations. You will help customers find their perfect fit and contribute to a welcoming shopping experience.

Drives strategic sales into enterprise accounts, prospecting, qualifying, selling, and closing new business. Focus on new business development with a split of 70% new logo business and 30% account development. Manages the sales process, including lead generation, qualification, evaluation, close, and account care. Requires 7+ years of quota-carrying sales experience in software products and services.

The Deutsche Bundesbank is a unique bank: an integral part of the European System of Central Banks, playing a significant role in financial stability, banking supervision, monetary policy, and payment systems in Germany. Above all, however, we are a strong team of reliable and responsible individuals whose daily work also lays the IT foundation for a stable euro and other central bank functions.

Supports the CFO with strategic, conceptual, and project-related topics, ensuring efficient decision-making processes. Prepares evaluations, presentations, and documents for executive-level review. Manages board and committee meetings and represents the CFO in internal and external meetings.

Composite technician performs repairs and sealing on aircraft structural components. Requires completed traineeship or experience, knowledge of English, and teamwork skills.

Internship in Antibody Development focuses on cloning, expressing, and analyzing antibodies. Successful candidates will have a master's degree in biology, immunology, biotechnology, or a related field and knowledge of molecular biological techniques.