java English-speaking jobs in Mainz

Facility Engineer with electrical or building services background needed for data center maintenance. Responsibilities include electrical and mechanical upkeep, contractor management, and incident resolution. Training provided for switching/voltage authorizations.

Experienced MEP Estimator needed for data center projects (€200m - €500m) in Germany. Prepare tenders, cost plans, and manage risk register. Data center experience and CostX proficiency preferred.

Experienced Consultant Pathologist sought to join established, profitable pathology institute in NRW as Partner/Shareholder (25% equity). Deliver high-quality diagnostic reporting across general pathology, contribute to clinical discussions, and participate in strategic planning.

Product Leader to own end-to-end outcomes for Freecash, Almedia's product rewarding users for engaging with advertisers. Develop and execute product strategy, prioritize ruthlessly, and drive data-informed decisions. Proven track record in consumer product development and a founder mindset are essential.

Supply Chain Logistics Manager designs and implements integrated logistics solutions for non-standard auto parts. Leads strategic sourcing and supplier negotiations for pan-European contract logistics providers. Requires a bachelor's degree, 5+ years of European contract logistics experience, and proficiency in logistics and customs regulations.

Leads product and design (20+ people) for a Berlin-based space tech startup. Defines product vision, strategy, and culture to achieve global market leadership. Reports to the Founder.

The AVI-SPL Onsite Technician provides on-site support for integrated conference rooms and meeting spaces in Hamburg. Responsibilities include installation, maintenance, and troubleshooting of AV systems, as well as customer training and support.

Electrical Technician / Automation Technician to support assembly, installation, and commissioning of advanced manufacturing equipment. Responsibilities include electrical installation, commissioning, troubleshooting, and international travel. Requires completed apprenticeship or vocational qualification in a related field and 2 years industry experience.

Leads and operates a new monoclonal antibody manufacturing unit, encompassing clinical and future commercial GMP production. Builds and manages a team of up to 50 employees, ensuring compliance with GMP, EHS, and quality standards. Drives operational readiness and smooth transition from project to routine manufacturing. Requires a university degree in a natural science discipline, several years of GMP biopharmaceutical manufacturing experience, and proven leadership skills.

This part-time SAP Marketing Associate role supports marketing campaigns in Germany and Europe. Responsibilities include creating marketing content, managing social media, supporting lead generation, and researching market opportunities. German language proficiency is required.

Experienced Estimator needed for turnkey construction projects (industrial, commercial, residential). Requires 3-5 years experience, BIM expertise (Allplan, Nevaris), and strong technical/commercial understanding. German native, advanced English required. Travel to sites across Germany (2-3 times/month).

Leads financial strategy and performance management for Videojet EMEA, overseeing P&L, Balance Sheet, Working Capital, and Cash Flow. Drives profitable growth, improves financial rigor, and builds finance talent.

Senior Director Analyst to lead market research and analysis within the enterprise AI services market. Develop market sizing/forecasting models, deliver client insights, and create thought leadership content. Requires 12+ years of relevant experience, strong analytical and communication skills, and a proven track record in market sizing and forecasting.

Manages and develops Almatis' international tax, transfer pricing, tax governance, and compliance activities across multiple jurisdictions. Collaborates with senior management and global stakeholders to maintain a compliant and sustainable tax structure. Oversees global corporate tax compliance, statutory filings, and tax reporting activities. Develops and enhances Almatis' transfer pricing framework in line with OECD guidelines and local regulations.

Experienced Omnichannel Orchestration Architect needed to build a scalable, technology-enabled omnichannel ecosystem. This role will design the target architecture spanning CRM, web, content, and data layer, define cross-channel orchestration logic, and integrate content lifecycle management. Requires 10+ years of experience in omnichannel strategy, MarTech architecture, CRM, or digital transformation.

This role provides end-to-end office administration and supports day-to-day HR tasks for local employees. Responsibilities include managing office routines, procurement, and vendor liaison, as well as assisting with recruitment, onboarding, and HR operations. Requires a bachelor's degree, 1-3 years of experience, and fluency in English and German.

HR Business Partner will support and develop HR processes, acting as a central point of contact for employees and managers in Germany and Austria. Responsibilities include payroll processing, employee support, personnel file management, and employment law consultation.

Provide senior-level consultancy, project leadership, and strategic oversight for large-scale, high-value projects in the Hi-Tech sector. Lead multi-disciplinary teams, ensuring projects are delivered to the highest standards of quality, safety, and performance. Manage commercial performance, client engagement, and risk management.

Senior Fullstack Developer with experience in software development, ideally GO and AWS, and exposure to AI technologies. Must be willing to travel to the Berlin office every 3 weeks. B2+ German required.

Experienced Project Manager needed to lead strategic Quality projects for a global pharmaceutical organization undergoing digital transformation. Focus on defining project scope, governance, and deliverables, supporting system selection, and aligning global stakeholders.