java English-speaking jobs in Mainz

Lead a world-class engineering organization for a high-growth fintech company. Shape technical architecture, engineering culture, and product velocity. Build and scale an in-house team, transitioning from an outsourced model.

Senior Associate (m/f/d) will support the CDD leadership team in advising private equity funds and portfolio companies on strategic commercial decisions. You will conduct due diligence, analyze data, and collaborate with cross-functional teams to deliver projects. Strong analytical, communication, and leadership skills are required. Fluency in German and English is essential.

Experienced IT professional to lead onsite support, manage hardware lifecycle, and provide technical guidance to junior technicians. Responsibilities include end-user support, ticket management, and AV/conference room technology support. Requires 3+ years of IT field services experience and strong troubleshooting skills.

Leads and develops regional healthcare and integrated care projects. Designs and implements sustainable healthcare concepts. Builds and manages stakeholder networks within the healthcare ecosystem.

Manages medical provider relationships and oversees the provider lifecycle in Germany. Ensures provider compliance and supports service delivery.

Research position exploring the use of acoustic metamaterials to shape sound beams for high-resolution object detection and imaging. The thesis will investigate the feasibility of focusing sound emissions and receiving the reflected signal to create a higher resolution image from a single measurement.

Lead Data Engineer needed to define data solutions, guide teams, and act as a trusted advisor to customers. Drive projects forward, aligning technical solutions with business goals.

The Regional Head of Supply Chain is responsible for setting and executing the end-to-end supply chain strategy across the EMEIA region. The role leads planning, logistics, distribution, and customer service activities, aligning supply chain capabilities with commercial and operational priorities.

Aquila Clean Energy EMEA seeks a (Senior) Legal Counsel to draft, review, and negotiate a variety of contracts for renewable energy projects. The role involves analyzing regulatory matters, managing external counsel, and identifying legal risks.

The Environmental Health & Safety (EHS) Manager develops, implements, and maintains a comprehensive EHS strategy for MSA M&C locations in Aach and Ratingen. This role involves leading risk assessments, delivering EHS training, overseeing waste management, and supporting sustainability initiatives. The EHS Manager ensures compliance with local, regional, and global standards and drives all EHS-related programs and projects.

Electrical Engineer to lead power-conversion projects from concept to delivery. Manage customer relationships, technical solutions, and project schedules. Experience with power converters, inverters, drives, and industrial electrical systems preferred.

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, develop, and mentor a finance team overseeing financial accounting and finance operations for a German entity within a growing international organization. Manage financial reporting, budgeting, forecasting, and cash flow planning.

Pega CDH Systems Engineer needed for a 6-month contract in Frankfurt. Will act as technical counterpart to IT service provider during implementation of a new Pega-based communications solution. Requires 5+ years SDLC experience, 3+ years Pega experience, and practical experience with OpenAPI specifications, data modeling, and enterprise application architectures.

Intern to plan, conduct, and evaluate mechanical tests and qualifications for elevator components. Responsibilities include operating testing machines, designing test equipment, and assisting with the implementation of new standards.

As an Application Technologist, you will develop innovative cosmetic formulations, execute product development projects, and collaborate with cross-functional teams. You will formulate and optimize a range of personal care products, including emulsions, gel-based systems, and surfactant-based formulations.

Chief Operations Officer to drive scale, structure, and innovation across operations. Responsibilities include scaling operational processes, building strategic partnerships, co-developing go-to-market strategies, and overseeing financial planning. Requires several years of experience as COO, VP Operations, or similar role in a SaaS or tech-driven scale-up environment.

Support innovation management tasks including sub-project management, market research, presentation creation, and administrative duties.

Develops and implements global category strategies for indirect goods and services (e.g., Legal, HR, Corporate Services) with a spend of US$300M+. Leads supplier relationship management, risk mitigation, innovation, and contractual negotiations. Provides guidance to Sourcing Managers and collaborates with stakeholders across CSL.

Project Planner with 5+ years of experience in project planning, ideally in EPC environments. Responsibilities include schedule maintenance, data management, progress reporting, and contractor schedule coordination. Requires proficiency in Oracle Primavera P6 and a degree in a related field.