java English-speaking jobs in Mainz

Lead cybersecurity programs for strategic clients with annual turnover over €800K. Coordinate large-scale projects, advise stakeholders, and ensure cyber resilience across people, process, and technology.

Act as the first point of contact for customers and prospects, handling general inquiries via email and phone. Resolve daily customer issues and route complex questions to the Level 2 team. Requires fluency in German and English.

Experienced Grid Connection Managers needed to support utility-scale onshore wind, solar, and BESS portfolio growth. Lead grid connection activities from development through permitting, managing relationships with DSOs and TSOs.

HPC Systems & Scheduling Developer role focusing on SLURM optimization, HPC/AI workflows, and performance tuning. Requires PhD/Master's in CS/Physics, Python coding skills, and HPC stack expertise.

Procurement Specialist for Transport & Logistics. Translate procurement strategies into results across Warehouse, Air, Ocean, Road, and Parcels. Lead tenders, analyze markets, and manage supplier partnerships. Requires business-fluent German and English.

Working Student to assist the Compliance department in implementing corporate compliance projects across European entities. Responsibilities include risk data management, monitoring compliance, and researching laws. Requires enrollment in a relevant university program.

Strategy & Transformation Consultant to lead strategic engagements with large organizations. This role involves managing client relationships, leading end-to-end project delivery, and building internal processes and frameworks for a fast-growing AI startup. Requires a Master's/MBA plus 3+ years in consulting or strategic project management.

Shape organizational understanding and alignment by developing internal communication frameworks. Partner with senior leadership on messaging, support managers, and structure change communication. Requires German and English proficiency.

Associate role supporting a European private equity investor. Focus on operational and strategic value creation within portfolio companies, driving performance improvement and transformation roadmaps. Requires 3-5 years of experience in consulting or similar fields.

The Butler provides exceptional, personalized service to guests in luxury suites, acting as a liaison between guests and hotel departments. This role requires strong communication, organizational, and problem-solving skills, as well as a commitment to exceeding guest expectations.

FPGA Engineer needed for embedded systems development in aerospace applications. Requires experience with PLD/FPGA technologies, embedded systems, and aerospace software development is a plus. Strong German language skills are essential.

Experienced Network Architect needed for a 3-6 month contract supporting IT/OT network transformation. Focus areas include Fortinet/FortiManager, IDMZ, Purdue Model, IT/OT segregation, and network security. German language skills are essential.

Junior Category Manager for International Wholesale develops and executes category strategies for wholesale customers. This role requires expertise in market intelligence, portfolio optimization, and collaboration to drive growth across international markets.

Manages regional delivery coordination for large home appliances across Western Europe. Oversees end-to-end logistics, resource planning, and vendor management. Requires 3-5 years in logistics with strong data analysis and project execution skills.

Experienced Project Planning & Scheduling Manager needed to coordinate schedules across the full project portfolio for a growing energy infrastructure business. Responsibilities include integrating timelines, monitoring progress, and establishing planning standards. Requires relevant degree and experience with Primavera P6/MS Project.

Postdoctoral researcher to develop attosecond science experiments using hard X-ray FEL radiation. Requires a PhD in physics or a related field and research background in experimental attosecond science. Experience with X-ray techniques and/or FEL science is an asset.

Working student for strategy consulting in life sciences. Support consultants on projects across the pharmaceutical value chain, conducting research and building visuals. Requires master's student status and strong English/German skills.

Forklift Driver role involving operation of various industrial trucks, loading/unloading, and palletizing. Requires a valid forklift license, scanner experience, and flexibility.

Experienced SAP EWM Support Consultant needed for second-line support. Investigate incidents, resolve tickets, and maintain system quality within a live EWM environment integrated with SAP ECC.

Senior Project Manager to lead Civil, Structural, and Architectural delivery for major hyperscale data centre projects. Requires 8+ years in major construction, including 3+ years as a Senior PM, with expertise in mission-critical facilities.