java English-speaking jobs in Mainz

Manpower is seeking temporary warehouse staff for a logistics partner near Gießen. Tasks include processing goods, picking and packing orders, and operating warehouse equipment.

Master's thesis focused on optimizing sparse 3D occupancy prediction for autonomous driving. Tasks include sparsifying, pruning, and quantizing CNN and transformer architectures, designing and evaluating models, and summarizing findings in a thesis and/or patent.

Quality Manager will lead and implement quality assurance and quality control initiatives across multiple construction projects. Responsibilities include developing and delivering project quality strategies, ensuring compliance with industry standards, and managing quality control processes.

Own and advance product strategy for unmanned systems, defining requirements, driving roadmap execution, and aligning stakeholders across complex programs.

Designs and implements robust data models and system configurations for electrical engineering systems using COMOS. Collaborates with the Electrical Systems development team and user community to troubleshoot and resolve data inconsistencies and system integration challenges. Configures and customizes the COMOS platform to optimize performance.

Senior Business Analyst needed for EU AMLR adaptation within Corporate Banking and KYC IT infrastructure. Requires experience in banking/finance, KYC/regulatory topics, E2E process analysis, data warehousing, SQL, and German language skills.

Lead the construction of a large-scale residential development in Düsseldorf, ensuring safe, on-time, and budget delivery. Manage subcontractors, site teams, and project stakeholders.

Experienced accounting leader (8+ years) with expertise in automation, multi-entity operations, and tax compliance. Proven ability to modernize accounting functions, drive strategic financial initiatives, and build high-performing teams.

Senior facultative reinsurance broker specializing in construction and engineering risks. Proven experience structuring and placing complex facultative programs. Strong market relationships in Europe and/or globally.

Engineering Project Manager to drive complex, cross-functional programs. Manage end-to-end project planning, scheduling, tracking, and reporting. Collaborate with engineering, operations, procurement, and commercial teams.

Experienced Mud Men / Recycling System Operators needed for a long-term HDD project in Germany. Operate and maintain mud mixing and recycling systems, prepare drilling fluids, monitor fluid properties, and assist with site logistics.

Lead, manage, and develop a team of mechanical engineers. Take ownership of engineering projects, ensuring timely delivery and adherence to KPIs. Drive development of special-purpose machinery and optimize engineering processes.

This role involves supporting customers with cloud infrastructure and cloud transformation projects, implementing DevOps practices, and taking on project responsibilities. Experience in cloud platforms (K8s, AWS, Azure, Google Cloud), application migration, and development tools (GitHub, Docker, Kubernetes) is required. The ideal candidate has experience in software architecture redesign, agile methodologies, and strong communication and team leadership skills.

Service Technician (m/f/d) Blades will ensure wind turbine reliability through on-site servicing and maintenance. Responsibilities include inspecting, repairing, and modifying rotor blades, applying laminating resins and composite materials, and documenting work digitally.

Principal Information Security Manager will lead the InfoSec function, ensuring compliance with ISO 27001 and SOC 2, managing customer security reviews, and driving risk treatment decisions.

Leads JOLT's support organization across customer service, remote operations, and field service. Defines support strategy, develops team structures, and manages external service providers. Oversees performance metrics, escalations, and reporting. Requires experience managing multi-tier support teams, vendor management, and technical aptitude.

Lead the Product Management team for Medical Controlling & Coding. Set and communicate the vision, roadmap, and strategy for the value stream. Analyze market needs and regulatory requirements to ensure the product roadmap reflects real customer and market value.

Lead the financial strategy and operations of a global energy software platform. Develop and oversee long-term financial plans, manage reporting and controlling, and ensure scalable financial structures. Drive business steering, profitability, and risk management.

SiteMinder seeks a Sales Director to lead and grow the company's presence in the DACH market. The role involves developing and implementing go-to-market strategies, achieving revenue targets, and managing a high-performing team. The ideal candidate will have proven experience building and scaling sales teams, a deep understanding of the DACH market, and strong business acumen. Fluent German is required.

Strategic Buyer (m/f/d) will define and execute procurement strategy, optimize global costs, and build supplier relationships. Requires a bachelor's degree, 3-5 years of purchasing experience, and strong analytical and communication skills.