java English-speaking jobs in Mainz

Accounting Lead responsible for owning and scaling Quote-to-Cash and Accounting operations under HGB. This role requires redesigning processes, leading the team, and managing the monthly/annual close and external audits.

Director of Sales to own global sales strategy for OrbitCloud and Silta. Build and lead an international sales organization targeting government, defense, and commercial customers. Requires 8+ years in complex B2G/B2B sales.

Head of Sales owns the entire sales function for XI and RI products. This role involves closing high-value deals, leading Sales Executives, defining sales strategy, and partnering on go-to-market efforts. Requires 5+ years of sales experience and 3+ years leading teams.

Procurement Specialist for Facility & Construction Services drives the Sales Market procurement strategy. Responsibilities include securing a compliant supplier base, managing agreements, and supporting the full procurement cycle. Requires 3+ years of relevant experience.

Experienced HSE Lead needed for an 18-month data centre construction project in Berlin. Requires proven HSE experience in data centre construction, knowledge of large-scale construction safety, and fluency in English plus German or Polish.

Senior Product Manager will design, develop, and manage activities for BaFin reporting products. Responsibilities include defining product roadmaps, collaborating with stakeholders, and driving product adoption. Requires a Bachelor's degree in a relevant field, 5+ years of product management experience, and knowledge of EMEA regulatory reporting.

Director, Medical Affairs DACH leads medical strategy across Germany, Austria, and Switzerland. This role drives medical leadership, manages KOL engagement, and ensures alignment with European priorities. Fluency in German and English is required.

Lead the SAP S/4HANA transformation across multiple business units, managing planning, execution, and cutover. Develop roadmaps, ensure governance, and bridge global business units and IT. Requires 5+ years in SAP program management.

Lead Automation Engineer for pharmaceutical manufacturing projects. Responsibilities include leading automation activities, developing control system architectures, and managing FAT/SAT. Requires 5+ years in industrial automation with Siemens PCS7/TIA Portal or ABB 800xA experience.

Lead global Security Architecture strategy and governance for a multinational organization. Own enterprise standards, embed security-by-design, and advise senior stakeholders on cloud, AI, and Zero Trust. Requires 10+ years in information security with leadership experience.

The Head of Real Estate holds strategic responsibility for Deutsche Börse Group’s 30+ global workplaces. This role leads a global team, shapes real estate strategy, and manages operations, new site delivery, and complex contract negotiations.

Facilities Technician responsible for operating, maintaining, and troubleshooting mechanical systems, HVAC, and Cleanroom equipment. Ensures adherence to standard operating procedures to meet high environmental protection standards in a semiconductor fab.

Experienced Project Manager needed to lead large-scale Data Centre projects from pre-construction to handover. Responsibilities include managing budgets, programs, site teams, and ensuring quality and safety compliance. Civil Engineering or Construction Management degree required.

Vice President, International Counsel provides strategic legal leadership for international businesses. This role leads a global legal team, manages cross-border risk, and advises executive leadership on complex international legal and regulatory matters.

Asset Manager for Wind & Solar at a leading renewable energy platform. Responsibilities include commercial management, investment support, and asset performance monitoring. Requires 2+ years' experience in renewables and fluency in German and English.

Senior iOS Developer to build next-gen Retail Media experiences on the Redcare mobile platform. Focus on scalable architecture, Swift/SwiftUI, and improving app performance.

Freelance lecturer to teach fundamental computer science knowledge with practical relevance, including user interfaces, business rules, web services, and quality constraints.

Senior Consultant in Operations Life Sciences delivers end-to-end project delivery, designing Supply Chain strategies from R&D to manufacturing. Drive transformation programs and optimize operations using data and AI.

Travel Curator refines AI-generated itineraries into personalized journeys. This role involves concierge support, researching hidden gems, and ensuring trip logistics are seamless. Requires extensive first-hand travel experience and attention to detail.

Warehouse Team Lead responsible for achieving performance objectives through daily management, cost savings, and service level improvements. Duties include overseeing returns handling, developing procedures, and analyzing data. Requires at least one year in warehouse management and fluency in English.