java English-speaking jobs in Mainz

SAP BW and SAC Expert sought by ELANTAS, a leading manufacturer of insulation and protective materials. This full-time role is within the Information Technology working area.

Lead Quality solution design for SAP S/4HANA QM, presenting solutions in workshops and assessing local requirements against global templates. Accountable for QM design deliverables and ensuring GxP compliance.

Lead Civil Engineer for data centre projects in Germany. Responsibilities include civil design (RIBA Stages 1–4), technical leadership, and managing permitting with local authorities. Requires Civil Engineering degree and extensive German project experience.

Director Operations for a medium-sized IT company developing tailored solutions for global air traffic control authorities. The role supports flight security systems used in over 80 countries.

Experienced Site Project Manager needed for long-term rail infrastructure projects across Germany. Responsibilities include managing site operations, coordinating teams, and ensuring compliance with safety and quality standards. Proven rail sector experience is required.

Mechanical Lead to manage mechanical site delivery on a large data center construction project. Responsibilities include installation, coordination, subcontractor management, quality control, and commissioning readiness. Requires a degree in mechanical engineering or comparable qualification and 8+ years of experience in large projects. Fluency in English is required.

Senior Chemical Systems Engineer to take technical ownership of the chemical distribution infrastructure for a new semiconductor fab. Ensure the safe, reliable, and uninterrupted supply of specialty chemicals through automated systems.

Senior Product Manager will own the product strategy and development of core Avelios platform modules. Responsibilities include defining product roadmaps, translating user needs into features, and driving cross-functional alignment for delivery. Requires 5+ years of B2B SaaS product management experience, strong analytical skills, and fluency in English.

Senior Coordinator for Revenue Operations/Billing. Coordinates billing processes, supports attorneys and clients, and analyzes complex client billing while ensuring adherence to firm guidelines. Requires experience in legal/professional services.

Sales Excellence & Enablement Manager focusing on Salesforce. Optimize CRM usage, sales methodology, and data quality across teams. Design enablement programs and maintain reporting to drive commercial impact. Requires Salesforce and RevOps experience.

Regional Marketing Manager to drive growth for DIY Home Energy Storage across DACH. Develop and execute regional marketing strategies for solar and storage products, supporting launches and commercial growth. Requires marketing experience and fluency in German.

Marketing Manager to execute the DACH and BENELUX marketing strategy. Drive MQLs from schools, raise awareness of non-attendance, and position the AV1 robot as a solution. Requires B2B tech marketing knowledge and German/English fluency.

Climate Scientist to own the scientific exploration and operationalization of climate and weather data. This hands-on role involves scouting, validating, and transforming global datasets into production systems for real-time, high-stakes travel decisions.

Research Assistant in Digital Security at the University of Passau. Responsibilities include independent cybersecurity research, contributing to projects like digital forensics and intrusion detection, and supporting teaching. Requires a Master's in a related field and strong programming skills.

Air Freight Export Operator manages end-to-end export air freight shipments. Responsibilities include coordinating schedules, liaising with partners, and ensuring accurate documentation. Requires experience in Air Freight Export Operations and strong English communication skills.

Expert SAP S/4 HANA Cloud Engagement Management role. Technical responsibility for EM processes in S/4HANA Public Cloud, defining standards, and integrating solutions. Requires experience in SAP engagement management and fluency in English and German.

Technical Property Manager to ensure safe, functional, and efficient store/office environments. Manage full FM scope, drive supplier performance, and support portfolio strategy. Requires 3+ years in FM/Construction/Real Estate.

Seeking a Development Lead for the Helmholtz Cloud portal. This role involves implementing the central Cloud Portal to provide seamless, accessible distributed cloud services to Helmholtz centers and partners.

Lead GMP-compliant sterile manufacturing operations for parenteral products in a regulated pharmaceutical environment. Responsibilities include overseeing aseptic processes, managing documentation, and leading teams. Requires experience in pharmaceutical manufacturing and strong leadership.

Lead AI-enabled computational pathology and multi-modal biomarker development for Oncology/BioPharma. Pioneer solutions to transform patient selection and drug development by integrating diverse data modalities.