java English-speaking jobs in Mainz

Develop and maintain embedded firmware for radiation measurement systems. Implement communication interfaces for medical imaging systems. Collaborate with cross-functional teams.

Analyze mobile app user data to inform product decisions and support A/B testing. Collaborate with product teams to design analytics setups and promote a culture of experimentation.

Investment Analyst or Associate to evaluate investment opportunities across technology, consumer, healthcare, financial services, and business services sectors. Build financial models, conduct due diligence, and support transaction execution.

Experienced SAP Transportation Management (TM) Consultant needed for complex logistics and supply chain transformation programs. Lead SAP TM implementations, optimize solutions, and manage project workstreams. Strong SAP TM configuration, process analysis, and stakeholder management skills required.

The Project Contract Manager supports disciplined commercial delivery across EGA's automation portfolio. Responsibilities include managing contracts, monitoring supplier performance, reconciling budgets, and managing change processes. The role requires experience in contract administration, supplier management, and cost control within complex engineering projects.

Leads the EPI Supply Chain Quality team, ensuring quality issue management and on-time, on-quality deliveries. Acts as the senior quality focal for EPI suppliers and initiates process improvements within the Product Delivery Function.

Support national and international Executive Search mandates from candidate identification to placement. Work closely with a Managing Director and gain exposure to CEOs, board members, investors, and senior executives.

Intern to support the evaluation of measurement results, automate data evaluations, and assist with measurements. Must be currently studying mechatronics, electrical engineering, or a similar field. Proficiency in German and English is required.

Software Release Manager owns the end-to-end release process for naval communication software, coordinating engineering teams, managing build integrity, and leading customer acceptance.

Aircraft Mechanic - Sheet Metal performs routine and non-routine sheet metal work, manufactures and installs components, identifies and repairs structural damages, and ensures compliance with EASA Part-145 regulations.

From August 2026 our secondary school in Dreieich (near Frankfurt) is looking for a Mathematics Teacher (in part-time or full-time)

JD Industrials seeks a Customs Specialist to optimize import/export customs clearance processes, develop a global customs knowledge system, and manage risk. The role requires expertise in customs policies, regulations, and digital compliance frameworks.

Leads strategy and roadmap for enterprise eHealth portfolio, including cloud and platform solutions. Manages full product lifecycle, from concept to launch and end of life.

Production Service Marketing Program Manager will develop profitable business for Support and Service of Advantest Products like 93K and CREA Semiconductor Test Systems and Handlers. Responsibilities include defining Support & Service offerings, analyzing market situations, and developing new services.

Shape the long-term strategic direction of Heraeus Convantics through 2035. Analyze complex problems and trends, translate findings into recommendations for senior leadership, and lead strategic initiatives. Collaborate across business lines and with external partners on topics such as new business development, footprint decisions, and M&A evaluations. Help establish Corporate Development as a high-impact contributor to the company's long-term direction.

Establish and lead a central Design Hub for the Clarios EMEA Aftermarket, delivering creative assets across brands, channels, and markets. Translate master assets into market-specific deliverables, ensuring brand consistency and local relevance. Manage the Design Hub backlog, including intake, prioritization, and delivery commitments. Drive creative direction and campaign execution, turning marketing briefs into visual concepts and assets.

Lead a Scrum team within a Data & Analytics Platforms team to deliver data platform capabilities. Experience in the financial industry is required. Responsibilities include backlog management, design and delivery of data platform features, and stakeholder communication.

Provides administrative and office management support to European and German business leaders in the DKSH Performance Materials Business Unit. Handles a variety of tasks including calendar management, travel arrangements, meeting preparation, and office operations.

Builds and manages a portfolio of 20 client relationships within a defined technical vertical. Leads the commercial lifecycle, from introduction to repeat business. Acts as a strategic advisor, identifying and pursuing new opportunities.

Design electrical systems for industrial-scale solar thermal plants, including heat tracing, architectures, and instrumentation. Collaborate with engineering teams, EPC partners, and suppliers to develop robust, scalable solutions. Support project delivery, testing, commissioning, and troubleshooting.