java English-speaking jobs in Mainz

Onsite Marketing Manager for a 1-year fixed term contract. Translates global marketing stories into customer-centric digital campaigns to meet eCommerce growth targets, ensuring a frictionless journey across website and app. Requires 3+ years of digital marketing experience.

Lead the German business for a leading digital asset exchange, driving commercial growth and local market strategy. This role requires expertise in the crypto ecosystem, regulatory compliance (MiCA, MiFID II), and scaling businesses in the DACH region.

Senior Operational Procurement Manager responsible for pharmaceutical and API procurement for a defined therapeutic area. Manages CDMO interface, end-to-end order fulfillment in SAP S/4HANA, and inventory. Requires 3-7 years in pharma supply chain.

Coordinate container equipment and logistics, managing depot and terminal activities. Responsibilities include equipment tracking, import/export flow planning, and managing repositioning. Requires logistics experience and strong German/English skills.

Controller for European Logistics & Supply Chain Finance. Responsibilities include cost controlling, budgeting, forecasting, and management reporting. Requires relevant finance experience and strong analytical skills.

Senior Talent Acquisition Specialist drives recruiting and performance management. Responsibilities include owning requisitions, improving hiring processes, and coordinating company-wide performance reviews. Requires 7+ years in operational recruiting and performance management.

Head of Finance & Controlling to build the finance function. Own reporting, FP&A, planning, and infrastructure. Requires 8+ years in finance leadership, strong modeling skills, and fluency in subscription economics. Must speak German and English.

Define and implement complex simulation architectures for next-generation aircraft programs. This role requires over 10 years in Engineering and 5+ years as a Software Architect with a track record in Simulation and Software architecture.

Student Commercial Analyst supporting analytical and strategic activities for renewable energy and battery storage projects. Responsibilities include financial modeling, market analysis, and decision support. Candidates should be analytically strong.

Lead the German marketing organization, owning the end-to-end agenda across demand generation, brand, and digital marketing. Challenge the status quo to drive growth and shape the business strategy.

Proactive Office Assistant & Events Coordinator needed to support daily office operations and coordinate internal/external events for a global investment firm. Requires experience in administrative support and fluent German with intermediate English.

Network Administrator to support and maintain LAN, WAN, and WLAN infrastructure. Responsibilities include managing firewalls, monitoring servers, and troubleshooting IT issues. Requires 2+ years of experience with Cisco and Fortinet equipment.

Deliver groceries to customers efficiently by e-bike or e-scooter. Meet and exceed delivery targets while providing exceptional customer service. Must be at least 18 years old, have a work permit in Germany, and speak English or German.

Aeronautical Electrician performs assembly, installation, maintenance, and inspection on aircraft per quality and safety standards. Responsibilities include electrical work on aircraft systems and following technical documentation. Requires 4–5 years of experience in the aeronautical sector.

Risk Management Intern role supporting daily oversight of risk analytics for investment funds. Responsibilities include risk assessments, analyzing liquidity profiles, and reviewing risk models. Requires study in economics, quant finance, or related field.

Coordinate contract renewals, manage customer relationships, and support renewal campaigns. Responsibilities include CRM administration, creating quotes, and optimizing processes using AI. Fluent German and English are required.

Contabo invites unsolicited applications from motivated individuals. Show your initiative by applying with a CV, start date, salary expectations, and a cover letter detailing your professional goals.

Senior Group Accounting and IFRS Specialist prepares consolidated financial statements under IFRS. This role acts as an IFRS expert, advising subsidiaries and stakeholders on complex accounting and consolidation matters.

Shape the long-term architecture of a large-scale IIoT ecosystem. This role connects Edge, Cloud, and connectivity solutions, driving technical direction across multiple agile teams. Requires senior architectural experience.

Lead eBay's Shipping engineering organization in Germany, managing multiple teams to build large-scale Java/Spring Boot services. Drive technical roadmap, architectural excellence, and develop engineering leaders.