java English-speaking jobs in Mainz

Strategy & Corporate Development Manager joins a global private equity-backed market leader. This role involves market expansion, commercial strategy, international growth, operating model design, and M&A. Ideal candidates have 2-5 years in Strategy Consulting or Investment Banking.

W2 Professorship in Digital Production Technologies. Focus on modern manufacturing, production systems, and data-driven methods. Responsibilities include teaching, supervising theses, applied research, and establishing industry partnerships.

Customer Success Manager needed for a growing EdTech SaaS business to manage mid-market and enterprise clients in the DACH region. Requires fluent German and English, plus 2+ years in a client-facing SaaS role. Focus on relationship growth, adoption, and retention.

Own end-to-end delivery of Upstream Optimization "Optimization as a Service" projects for oil and gas operators. Manage complex, technical, customer-facing projects, ensuring on-time, on-budget implementation of AI-driven solutions.

PLM Windchill Specialist needed to own the end-to-end PLM lifecycle, including configuration, maintenance, and upgrades. Requires 5-7 years in PLM, strong Windchill knowledge, and experience with BOM and Change Management.

Senior Enterprise Sales Manager owns the full sales cycle for inbound and outbound opportunities in the enterprise market. This role involves prospecting, negotiation, and closing partnership agreements.

HR Transformation Lead – SuccessFactors drives global HR and recruitment standardization. This role owns the SuccessFactors landscape, developing consistent processes and governance across international teams. Requires experience in HR transformation, SAP SuccessFactors, and global stakeholder management. Fluent in German and English.

Lead Accounts Payable function overseeing end-to-end AP operations, vendor master data, and expense management. Lead a team, drive process improvements, and ensure audit readiness. Requires 7+ years in AP and fluency in English and German.

Senior SAP Treasury Consultant advises on implementation and optimization within a specialist area. Requires deep expertise in one or more Treasury modules and excellent German. Involves client advisory and approximately 30% travel across Germany.

Drive monetization for a leading Free-to-Play strategy title by conceptualizing and implementing in-game offers. Use data insights to enhance player experience across multiple channels and design A/B tests. Requires 5+ years of experience in gaming CRM or monetization.

Workshop Service Technician responsible for Pre-Delivery Inspections, heavy repairs, and factory modifications on earthmoving equipment. Requires 3+ years of heavy equipment repair experience and expertise in diesel engines, hydraulics, and electrical systems.

Lead ASEE Groups operations across Europe, managing end-to-end project delivery, budgets, and quality. Oversee site teams, subcontractors, and client relationships while ensuring adherence to safety standards.

Temporary Office Coordinator needed to support daily office operations during organizational transfer. Responsibilities include administration, mail management, vendor coordination, and visitor support. Requires fluent German and good English.

Project Engineer to define and implement cross-site technical standards for automated container handling systems. Responsible for technical design, integration, testing, and commissioning. Requires experience in automation, control systems, and project environments.

Package Consultant - SAP Ariba requires several years of experience with SAP Ariba, especially Sourcing. Responsibilities include supporting and maintaining SAP Ariba solutions, gathering business requirements, and coordinating with technical teams.

Steer current and future MRO projects for Airbus Helicopters. Support business strategy, drive sales funnel activities, and identify market capture opportunities using customer feedback and fleet data. Requires 8+ years in Aerospace/Defense BD or Program Management.

CTO to build the engineering organization for a deep tech B2B software startup creating safety-critical software for human-AI co-development. Own technical vision, scale the team from 15 to 50, and act as a strategic partner to founders.

Support the MACE Audit application by managing the roadmap, driving development, and overseeing releases. Responsibilities include requirement evaluation, documentation, and ensuring IT security compliance.

Sustainability Manager to drive European strategy across a real estate portfolio. Focus on asset performance, decarbonization, compliance, and data excellence. Requires property/built environment experience and technical knowledge of ESG.

Amazon Fulfilment Associate role involves loading conveyor belts, transporting, and staging deliveries. Duties include sorting parcels, lifting up to 15kg, and using scanners or forklifts. Proficiency in German, English, or Arabic is required.