java English-speaking jobs in Mainz

Sales Executive to identify and engage potential clients, roofing constructors, and distributors. Responsibilities include planning sales initiatives, presenting products, building relationships, and negotiating deals. Requires 3+ years of field sales experience, strong communication skills, and fluency in German and English.

Own the validation, testing lifecycle, and release approval of core autonomy products. Develop and execute test strategies, design test scenarios, and collaborate with engineering teams to implement automated test suites. Drive the release management lifecycle and ensure compliance with technical requirements.

Conduct research on future satellite-to-vehicle communication solutions based on 6G networks. Develop and implement algorithms for handover mechanisms between terrestrial and non-terrestrial networks. Validate concepts through simulations or prototypes. Contribute research results to 3GPP studies and working groups.

Financial Planning and Analysis Specialist supports the head of Group FP&A in delivering financial analyses to support Group strategy and growth. Responsibilities include forecasting, tracking business development, and conducting analyses of company performance. Requires a degree in Finance, Economics, Business Administration or equivalent and >5 years' experience in finance within an industrial business environment. Proficiency in MS Office, especially Excel and PowerPoint, is required.

Welding Process Engineer to support development, qualification, and execution of welding activities for structural components in railway applications (MIG, TIG, FSW). Ensures compliance with railway standards (EN 15085, ISO 3834) and customer requirements. Provides on-site technical support, troubleshooting, and root cause analysis.

As an H&S Specialist, you will contribute to the implementation and continuous improvement of Encavis' health and safety management systems across its renewable energy portfolio. You will monitor and analyze H&S performance, conduct audits and inspections, provide operational support, and coordinate with stakeholders.

Experienced lawyer sought to run and grow their own practice within a supportive international firm. Minimum 8 years post-qualification experience required. Must be a recognized expert in their field, entrepreneurial, client-centric, and collaborative. Fluent English required. Active practicing certificate/license with no restrictions. Willingness to operate on a self-employed basis.

Electrical Engineer to join the Engineering team at Lohmann Animal Health GmbH. Responsibilities include ensuring reliable and safe operation of electrical infrastructure and power distribution systems. The role also includes acting as the site's primary expert for the Energy Management System (EnMS) in accordance with DIN EN ISO 50001.

Cardmarket seeks a Payment Operations Specialist to manage payment processes across its marketplace. Responsibilities include transaction reconciliation, funds flow management, onboarding support, dispute resolution, and vendor relations.

Clinical Research Operations Assistant to support the Early Phase Clinical Unit (EPCU). Responsibilities include kitchen operations, reception & hospitality, and warehouse & logistics. Requires fluency in German, basic English, proficiency in Windows Office, and experience in a relevant field.

Develop new food concepts and ingredient solutions, conduct recipe formulation and evaluation, and assist in developing customer relationships.

Working student to support the Sales Team, gaining practical experience in a multinational company. Must be enrolled in a German university, preferably pursuing a degree in Business Administration or a related field. Fluency in German and English required.

Lead a Field Application Engineering team across EMEA, driving design wins and revenue growth. Manage customer relationships, collaborate with sales and product development, and translate customer needs into product solutions.

Account Manager Netherlands (m/f/d) needed to develop and manage project sales, support national electrical wholesalers, and achieve sales targets. Requires lighting knowhow, 5+ years experience, electrical/electronic knowledge, and fluency in Dutch.

Configure and enhance Workday's Core HCM module, partnering with stakeholders to translate business needs into system design improvements. Provide guidance to SumUppers using Workday, build reports and dashboards, and contribute to documentation and change management.

Electrical Design Engineer for A350 wiring harnesses. Requires experience in ATA 92, CATIA V5, DMU, VPM, SAP, ZAMIZ, CIRCE, and MS Office.

Lead System Architect to design, architect, and deliver enterprise-scale Pega solutions. Provide technical leadership, conduct design and code reviews, and ensure application scalability, performance, and security. Fluent German and English required.

Working student (m/f/d) to build, maintain, and strengthen the social media presence of Eightyards on global platforms. Responsibilities include creating social media content, supporting community management, and researching industry trends. Requires a degree in digital media or communications, strong social media knowledge, and excellent digital skills.

Senior/Staff Web Analyst to design and implement tracking strategies, architect automated data pipelines, and ensure data integrity across web and app platforms. Expertise in web and mobile app analytics, SQL, JavaScript, and AI-driven automation tools is required.

The Clinical Territory Associate will gain knowledge of technical, clinical, and sales aspects of the da Vinci® Surgical System. They will provide technical and clinical support, lead product demonstrations, and contribute to sales goals. The role requires a Bachelor's degree, fluency in English and German, and the ability to travel up to 50%.