java English-speaking jobs in Mainz

Lead the legal function for a growing clean energy company, providing strategic and commercial legal support across project development, contracts, financing, and compliance.

Production Scheduler needed for short- and medium-term planning based on forecasts. Creates daily and weekly production schedules, reconciles planning, and coordinates with supply chain. Requires independent work style, MS Office proficiency, and good communication skills. Experience with ERP software is desirable.

Freelance IT Project Manager needed for complex digital transformation initiatives. Lead cloud migration and modernization projects, manage budgets, risks, and stakeholders. Strong Azure, AWS, Microsoft 365, and Agile experience required.

Electrician (m/f/d) Offshore needed for long-term position in the North Sea starting August. Responsibilities include performing switching operations, fault diagnosis, testing, maintenance, and commissioning of electrical systems and components. Requires successful completion of electrician or electronics technician training and experience with EnVentus or V236 systems. Medium-voltage/high-voltage switching authorization and offshore safety training are desirable.

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 German work permit, and speak English or German.

Intern will optimize product presentation in the Westwing Shop, contribute to visual storytelling, and support merchandising strategies.

Test Engineer (m/f/d) for Flight Control & Management System in Manching. Develops IVP (Integration & Verification Plan) for L2 and L3, supports test bench development, and executes system and hardware/software integration tests.

Interim Country Manager Germany to lead and grow a subsidiary of an international engineering services group. Responsibilities include developing commercial strategy, securing new business, managing P&L, and leading a team of engineers. Requires experience managing a business unit, strong business development in defense, aerospace, or other high-tech sectors, and a network among major industrial companies.

The International Max Planck Research School on Earth System Modelling (IMPRS-ESM) offers PhD positions in interdisciplinary climate research. The program provides structured supervision, financial support, and no tuition fees. Applicants must have a Master's degree in a relevant field.

The German Primate Center seeks a PhD Candidate in Computer Vision to support scientific research by implementing data science approaches.

The Project Engineer coordinates, commissions, tests, and troubleshoots projects throughout Germany and occasionally overseas. This role involves managing server deployments, inspecting installations, ensuring adherence to technical standards, and providing technical support to internal teams and clients. The Project Engineer also mentors junior engineers and collaborates with various departments to ensure project success.

The Friedrich Schiller University Jena seeks a Doctoral Researcher in Metabolomics to develop an experimental platform for untargeted metabolomics focused on monitoring metabolic changes induced by viral infections. The position is part-time (65%, 26 hours per week) and fixed-term until June 30, 2030.

Lead software engineer to own technical direction and delivery of consumer-facing applications and digital platforms. Establish architectural principles and guide a team of engineers. Requires 7+ years of experience in software engineering, system design, and delivery of application platforms. Fluency in English and experience in automotive, logistics, or related domains.

Create engaging design assets for the SAP Discovery Showroom, translating complex ideas into clear, visual experiences. Design multimedia content, such as infographics and demo videos, to make technical concepts understandable for diverse audiences.

Mechanical Systems Design Engineer supports development and optimization of wind turbine components. Designs mechanical components, manages compliance with requirements, and evaluates manufacturing processes. Collaborates with international teams on continuous improvement of wind turbine systems.

Experienced Senior Controller needed to manage financial operations for a manufacturing plant. Responsibilities include financial reporting, budgeting, forecasting, cost control, and business partnering with operational leaders.

The Fraunhofer Institute for Electronic Microsystems and Solid State Technologies EMFT seeks a Semiconductor Test Expert to develop and implement test solutions for semiconductor devices and microelectronic systems. Responsibilities include developing test programs, procuring test hardware, and collaborating with design teams and industry partners.

Manages the contract database, ensures data quality, and optimizes contract workflows. Contributes to contract process standardization and develops controlling tools. Requires a business or administration qualification, contract management knowledge, and fluency in German and English.

Provide proactive, personalized customer support and represent the company's quality and service standards. Coach customers on online workflow tools and serve as a point of contact for brand customers.

The Deutsche Bundesbank seeks two experts to join the Wholesale CBDC team. Responsibilities include analyzing technological developments, designing and testing solutions for digital financial market infrastructures, and communicating technical information to various audiences.