java English-speaking jobs in Mainz

Underwriter (Senior) for Life/Health CUBES team in Cologne. Assesses and underwrites complex biometric risks, builds client relationships, and contributes to strategic initiatives. Requires 5+ years underwriting experience, relevant degree or qualification, fluency in German and/or English, and strong analytical skills.

Lead the European Energy procurement category, shaping and executing energy strategies across sites. Deep energy sector knowledge, including renewables, sourcing models, and market trends, is essential. Experience in energy procurement, strategy, or a technical/market-focused energy role is required.

Senior Fullstack Developer designs, implements, and optimizes AI-enabled applications and platforms. Leads development of reusable components and frameworks, conducts code reviews, and collaborates with cross-functional teams. Mentors developers and communicates technical decisions to stakeholders. Requires 8+ years of software development experience, proficiency in Python, and expertise in cloud architectures, CI/CD, and secure development practices.

Senior Full Stack Developer will design, implement, and maintain a big data platform. Responsibilities include feature development using Java, Spring Boot, and Vue.js, system architecture development, platform operation and optimization, and mentoring junior developers. Requires 5+ years of software development experience, strong Java skills, and experience with front-end frameworks, databases, microservices, and event streaming platforms.

Strategic Sales Executive will identify and develop business opportunities with new and existing clients in the freight forwarding industry. This role requires deep transportation industry knowledge, strong relationship building skills, and the ability to present complex solutions.

Area Sales Manager (m/f/d) for Latin America and Brazil. Supports dealers and sales companies in sales, marketing, and product training. Requires proficiency in English and Spanish, with Portuguese beneficial.

Business Development Manager will prospect, qualify, and pursue potential clients. Responsibilities include defining logistics solutions, managing executive relationships, and preparing sales materials. Requires a Bachelor's degree, 5+ years of experience in supply chain/contract logistics, and fluency in German and English.

Senior Quantity Surveyor to manage construction projects in Germany, focusing on industrial, data center, and office fit-out projects. Requires 5+ years' experience, fluency in German and English, and a degree in Quantity Surveying or related field.

Strategic and NPI Demand Planner responsible for understanding customer demands for the V93K product portfolio. Develops and evaluates demand and supply scenarios, analyzes demand drivers, and collaborates with cross-functional teams to execute New Product manufacturing.

Leads and develops a supply chain team, oversees end-to-end supply chain processes, and negotiates contracts with suppliers.

Drive operational excellence across 11 European production sites. Define and implement Lean management strategy, ensuring alignment with corporate and regional goals. Develop and track performance scorecards, optimize space usage, material flow, and lead times. Lead training and development initiatives for the M+H Production System. Coordinate best practice sharing and facilitate workshops to enhance efficiency.

The University of Cologne seeks a professorship in Health Operations Management. The successful candidate will conduct research, teach at the B.Sc. and M.Sc. level, and contribute to the faculty's research areas. Applicants must have publications in healthcare management, health operations management, and health service research.

The Munich Data Science Institute (MDSI) and the Collaborative Research Center LETSimmun (TRR 338) seek a Data Steward to support research data management. The Data Steward will design and implement data workflows, support data collection and curation, and develop guidelines for data integrity and preservation. The position requires a Master's degree in a relevant field, experience with life-science data, and strong communication skills.

Already based in Munich? Join an international bilingual campus with structured working hours, strong benefits and excellent conditions for early childhood educators.

SAP SD Consultant needed for S/4HANA implementation. Focus on end-to-end SD design, configuration, and delivery with strong FI and MM integration expertise. Experience in global rollout programs and stakeholder engagement required.

Skeleton Technologies seeks a Talent Acquisition Team Lead to manage and develop the company's talent acquisition strategy.

Provide phone and on-site technical support to resellers and end-users. Diagnose and resolve technical challenges. Contribute to product development and training. Requires a technical background, fluency in French and English, and strong communication skills.

Senior Mechanical Engineer designs, develops, and validates mechanical systems for missile and rocket components. Responsibilities include structural analysis, test rig design, and collaboration with multidisciplinary teams. Requires a degree in Mechanical or Aerospace Engineering and experience with CAD and FEM/FEA tools.

As a Working Student Product Design, you will translate product ideas into wireframes and prototypes, design UI solutions, and collaborate with Product Managers and Developers. You will support the team with ad-hoc design tasks and contribute to the continuous improvement of the PiNCAMP website and apps.

HR Organizational Enablement Manager supports global growth by designing people strategies and structures. Manages projects, analyzes data, and collaborates with teams on workforce planning, talent development, and change management.