java English-speaking jobs in Mainz

German and English speaking Customer Support Associate needed to support customers in Germany. Deliver high-quality support via email, maintain satisfaction metrics, and collaborate across departments. Requires 2+ years in customer-facing e-commerce roles.

Performs operations, maintenance, and repairs on heating, hot water, ventilation, and AC systems. Requires vocational training or 5 years of experience, German driver's license class B, and B2 German proficiency.

Media Buying Internship supporting TV campaigns. Monitor performance, analyze data, and assist in planning multi-media campaigns across markets. Requires analytical skills, English proficiency, and a valid German work permit.

Manages the full customer order lifecycle from order to cash. Provides telephone and email support to local and international clients, resolving incidents and monitoring agreements. Duties include invoice supervision, returns management, and database upkeep.

Lead SAP EWM warehouse solution rollouts and optimizations, managing project delivery from setup to hypercare. Act as functional SAP EWM lead, coordinating cross-functional teams. Requires SAP EWM expertise and project management skills.

R&D Mechanical Designer to concept, design, and verify new hardware for photonics micro assembly & testing machines. Develop and optimize systems, using CAD and simulations. Requires Mechanical Engineering degree and 2+ years of relevant experience.

Senior Accountant manages day-to-day financial accounting, monthly tax filings, and prepares financial statements under HGB. Requires 3-5 years of experience and knowledge of German tax law.

Cybersecurity Engineer to implement and maintain IBM Guardium and Oracle Vault. Responsibilities include monitoring logs, enforcing security policies, and investigating incidents while ensuring GDPR and HIPAA compliance.

Area Manager DACH to develop commercial presence across Germany, Austria, and Switzerland. Responsibilities include driving sales growth, managing partners, and strengthening retail channels. Requires sales experience, German market knowledge, and fluency in German and English.

Delivers strategic HR support across business units, advising leaders on employee relations, performance, and development. Requires strong knowledge of German employment law and experience with works council relations.

Own and develop AGCO's global Share of Wallet solution. Analyze machine parc, service, and parts data to identify growth opportunities and drive aftermarket expansion through data-driven decision making.

Data Center Engineering Operations Technician responsible for electrical and mechanical infrastructure problem resolution. Duties include maintenance, monitoring, and hands-on work with M&E systems. Requires high school diploma and knowledge of electrical theory.

Manage retail campaign operations from concept to shelf, overseeing POS displays and the reorder journey. Responsibilities include inventory planning, logistics coordination, and process optimization. Requires retail and sales promotion experience.

Intern for Strategic Commercial Partnership Management supporting growth with European manufacturing partners in Generics, Speciality, and Clinical Trial Sourcing. Responsibilities include reporting, data analysis, and contract support. Requires business degree and outstanding English skills.

Lead Vendor Management & Operations role owning vendor logistics partners across Germany. Responsibilities include operational management, performance tracking, and leading teams. Requires experience in logistics, vendor management, and team leadership.

Head of Operations & Service for Dosimetry. Define and execute global operations strategy covering manufacturing, supply chain, and customer service across multiple regions. Requires expertise in operations, leadership, and fluency in English and German.

Define the look, feel, and behavior of AI-powered construction project management software. Design features from idea to high-fidelity UI, prototype, and run user discovery. Requires C1 German and Figma proficiency.

Senior Specialist, Workday Security & Governance owns the Workday security landscape. Responsibilities include designing, configuring, and maintaining security, conducting access reviews, and ensuring audit readiness. Requires 8+ years of Workday HCM experience.

Serve as a trusted HR Business Partner to executive leadership, driving organizational effectiveness and talent strategy. Align HR initiatives with business objectives, coach leaders, and manage change in dynamic environments.

Develop European XFEL's first sustainability strategy, establish reporting frameworks, and coordinate data analysis. This role requires a degree in a related field and experience in sustainability management.