java English-speaking jobs in Mainz

The Customer Experience Lead will architect the vision for global error categorization and compensation, drive A/B testing, and oversee global compensation spend. This role requires a deep understanding of customer experience, analytical skills, and the ability to lead cross-functional teams.

Experienced HSE professional needed for major Data Centre construction project in Düsseldorf. Lead risk management, implement safety measures, and ensure compliance with European HSE regulations.

Develop a web-based application for process testing from scratch. Collaborate with teams to retrieve process definitions and test results. Implement user-friendly interfaces and robust backend services.

Develop new serverless services in TypeScript on AWS, contribute to the GraphQL API, and modernize existing Java services. Analyze, expand, and optimize Java code, migrating it to TypeScript. Ensure the operation, monitoring, quality, and stability of services. Collaborate with team members and other IT units.

Senior Planner needed for large-scale Data Centre developments in Germany. Develop, manage, and monitor project programmes using Primavera P6. Collaborate with project teams to ensure on-time and efficient project delivery.

Supply Chain Engineer will manage supplier relationships, procurement, performance improvement, and logistics. Requires a Master's degree in Supply Chain Engineering or related field and 2+ years of automotive experience. Fluency in English and German is required.

Coordinate and assist developers in conceptualizing and developing new SAP software programs and applications. Assist in preparing and documenting SAP software requirements and specifications. Recommend, schedule, and perform SAP software improvements and upgrades. Write, translate, and code SAP software programs according to specifications. Run and monitor SAP software performance tests. Conduct code reviews and support the implementation of automated testing procedures. Provide regular status reports on software quality. Assist in the development and maintenance of user manuals and guidelines. Liaise with Global Process Owner, Global ERP Leads, network administrators, systems analysts, and software engineers to resolve problems with SAP software. Manage and/or provide guidance to junior SAP developers and external AMS companies.

Lead buy- and sell-side due diligence engagements across commercial, digital, technology, and data dimensions. Develop equity stories and value creation initiatives for private equity clients. Leverage AI and technology to provide insights beyond standard due diligence.

Lead and manage a team of engineers in developing and delivering high-quality software solutions. Guide cross-functional and distributed teams to deliver results within tight deadlines. Foster a culture of mentoring, innovation, and skill development.

The Director (f/m/x) Health Economics & Market Access - EMEA will shape and execute the regional HEMA strategy, act as a subject matter expert on health economics and reimbursement, and lead the development of health economic models and value dossiers.

Lead a team of eight, developing and executing marketing strategies for PAYBACK's largest retail partners. Design loyalty campaigns, customer development initiatives, and manage projects based on performance KPIs.

The Senior Integrity Manager (Interims Teamlead) will lead the ISCC Integrity Programme, ensuring compliance of certified companies and Certification Bodies through risk-based approaches. This role will safeguard the integrity and credibility of the ISCC system, identify systemic risks, and drive corrective and preventive measures. The Senior Integrity Manager will translate findings into system improvements, collaborate with stakeholders, and represent ISCC at external events.

IT Application Manager for Control Technology will operate, support, and develop control technology applications. Responsibilities include ensuring system availability, planning and implementing changes, designing interfaces, and collaborating on IT security measures.

Scientist in our Biology Department will develop, optimize, and validate bioanalytical methods for biologics using techniques such as ELISA, ECLA, or HPLC. Responsibilities include sample analysis, data interpretation, report preparation, and client communication.

The Central Laboratory Specialist FG (f/d/m) performs quality control, including sampling and testing of materials. Responsibilities include conducting laboratory tests, documenting results, and ensuring compliance with quality management systems. The role requires proficiency in laboratory techniques, quality processes, and technical documentation.

Lead and evolve the Platform Unit, defining and executing a platform strategy aligned with business goals. Build and own the platform offering, including the Internal Developer Platform (IDP), collaborating with product teams to maximize value delivery.

Consulting DevOps / Platform Engineer supports customers with cloud infrastructure and cloud transformation projects. Responsibilities include implementing DevOps practices, developing cloud strategies, and redesigning software architectures. Requires experience with cloud platforms (K8s, AWS, Azure, Google Cloud), programming languages (Java, Python, Rust), and agile methodologies.

Manage a large restaurant portfolio, improving operational performance, reducing churn, and scaling commercial tool adoption. Analyze data, design campaigns, and develop automation tools to drive growth for Wolt and partners.

A postdoctoral researcher is sought to advance in situ μCT experiments at PETRA III, focusing on the fatigue of magnesium-based implants. Responsibilities include improving the tensile testing setup, enhancing tomographic reconstruction methods, and implementing a multimodal measurement workflow.

Leads global corporate strategy projects, defining and implementing company strategy. Drives strategic planning, identifies growth opportunities, and analyzes market trends. Collaborates with senior leadership and stakeholders to execute strategic initiatives. Requires a master's degree, MBA, or equivalent with over four years of experience in strategy consulting or corporate strategy.