java English-speaking jobs in Mainz

Medical Scientific Liaison for Rare Diseases / Liver will build relationships with medical and scientific experts, provide scientific education, and support clinical development. Requires an advanced scientific degree, previous MSL experience, and expertise in Rare Diseases / Liver. Fluency in German and English is required.

Leads strategy and roadmap for enterprise eHealth portfolio, including cloud and platform solutions. Manages full product lifecycle from concept to end of life. Builds and scales B2B software products, preferably in eHealth or healthcare IT.

Design engineer needed for permanent position. Create 2D/3D technical drawings, design components, and prepare documentation. Requires mechanical engineering background, CAD proficiency, and experience in design.

As Executive Assistant to the COO and CIO, you will provide high-impact support, drive efficiency, and ensure seamless execution at the C-level. You will manage complex calendars, priorities, and workflows, serve as a key interface between executives and stakeholders, and support strategic initiatives.

Experienced Payroll Specialist needed for a one-year temporary contract. Responsible for end-to-end payroll processing for multiple entities, data management, and compliance with local laws and SOX regulations. Requires 3+ years of experience in a multinational business environment with a focus on payroll for multiple entities.

Research Associate to conduct experimental and numerical studies on bubble dynamics in pool scrubbing. Tasks include designing experiments, performing simulations, and analyzing bubble size distributions.

Contribute to quantum computation by developing and implementing an optimization algorithm for optical applications at ZEISS Corporate Research.

Drive growth for Intelligence Center X, a low-code and process automation platform, by identifying and qualifying leads, developing opportunities, and engaging with C-level stakeholders. Showcase the platform's value in enabling data-driven decision-making and automated workflows. Lead the entire sales cycle, from uncovering opportunities to closing deals.

Supports the planning, design, deployment, operation, maintenance, and support of database and application services. Responsibilities include planning and designing MS SQL installations, driving automation, and participating in working groups. Requires a completed (technical) university degree in computer science or a comparable relevant degree, at least 3 years of experience in Microsoft SQL Server and SQL Server clusters, and knowledge of relational database management systems, Windows Server, PowerShell, T-SQL, and Git.

Drive new client acquisition and revenue growth for NTT DATA. Lead the development and execution of sales strategies, build C-suite relationships, and negotiate multi-year deals. Leverage deep industry knowledge and technology expertise to deliver exceptional client outcomes.

International Payroll Specialist needed for fixed-term contract (July 2026 - December 2027). Process, audit, and reconcile international payrolls for Germany, Austria, and Switzerland. Partner with external providers and internal stakeholders to ensure accurate and timely payroll reporting.

As an Onboarding Specialist, you will guide healthcare professionals through the adoption of AlfaDocs software, providing training, managing projects, and ensuring successful implementation. You will collaborate with various teams to deliver a seamless customer experience and act as the voice of the customer, sharing insights to improve the product and onboarding process.

Lead daily manufacturing operations to achieve production targets and optimize workflows. Drive continuous improvement initiatives using Lean Manufacturing and Six Sigma. Monitor production KPIs and collaborate with cross-functional teams.

GenAM seeks a technically strong OCIO & ALM professional to support the build-out of its OCIO and corporate pension business in Germany and Austria. Responsibilities include OCIO & fiduciary mandate management, ALM advisory & modeling, regulatory & structural expertise, and corporate pension platform development.

Leads global Technical Solutions Consultant (TSC) teams and automotive partners integrating Google Maps and Automotive Software Development Kits (SDKs). Manages automotive partner relationships and drives issue resolutions. Develops and improves processes for expanding Forward Deployed Engineer (FDE) capabilities across the automotive industry. Represents partner requirements to inform product development and collaborates with Geo Auto, Geo Developer, and Android teams.

Develop and implement penetration testing and vulnerability scanning strategies. Conduct white-box, gray-box, and black-box tests of IT infrastructure, web applications, and networks. Analyze and evaluate vulnerabilities, prepare technical reports, and advise IT and development teams on secure development practices.

UMGC Europe seeks adjunct faculty to teach German Language to adult learners online and in-person at the Undergraduate School in Vilseck, Germany.

Implement IT security solutions, integrate them into existing landscapes, and perform analyses and automations. Advise clients on optimizing IT security architectures. Possess solid knowledge of Microsoft technologies and basic knowledge of IAM, PAM, AD, PKI, and virtual machine setup.

Senior Data Engineer will architect data flow solutions, design data layers, and develop ontologies to translate domain logic into queryable graph models. Responsibilities include implementing scalable data pipelines, integrating LLM-driven workflows, and defining data integrity standards. Requires 5+ years of experience building production-grade data products, proficiency in Python, SQL, and cloud infrastructure, and experience with graph databases and semantic modeling.

Service Technician (m/f/d) for wind turbines. Responsibilities include on-site servicing and maintenance, repairing turbines, analyzing error messages, and documenting work. Requires vocational training in a relevant field, familiarity with Microsoft and iOS, and a valid Class B driver's license.