java English-speaking jobs in Mainz

Experienced SAP HCM consultant needed for on-premise systems, SuccessFactors, and H4S4 environment. Focus on payroll and time management processes. Support, optimize, and improve existing solutions.

As a Ground Segment Software IVV Engineer, you will be responsible for the Integration, Verification and Validation of software for Mission and Payload Management, including the integration of AI-engines. You will contribute to the definition of the IVV Plan and Reports, perform Software Design, Development and IVV tasks, and analyze data from validation tests.

Production Controller needed to implement and manage production costing systems, support ERP optimization, and deliver operational reporting. Strong manufacturing costing and ERP experience required.

Financial Controlling Specialist supports Shared IT organization with budget and capacity planning, financial reporting, forecasting, and closing activities. Provides financial transparency and insights to management and stakeholders. Requires 8-12 years of experience in financial controlling, proficiency in SAP modules and MS Office applications, and strong analytical and communication skills.

Senior Project Manager to lead complex data center interior fit-out projects across Europe. Responsible for end-to-end project lifecycle, including scope, schedule, quality, safety, and financials. Requires 10+ years' experience in CSA fit-outs or comparable high-spec builds, strong commercial acumen, site mastery, and people leadership skills. Fluency in English and German is essential.

Senior ERP Program Manager to oversee and coordinate enhancements within a live Oracle NetSuite environment. Manage, prioritize, and structure enhancement requests while ensuring system stability. Coordinate between business stakeholders and the external ERP partner.

The Stellantis Graduate Program (GPS) Manufacturing is a European early-career program for high-potential graduates. The program combines technical responsibility, international exposure, and structured development to prepare participants for leadership roles.

Senior Process Analyst to drive end-to-end supply chain process improvements in a global digital transformation program. Lead process analysis, collaborate with stakeholders, and design scalable, sustainable processes.

Lead the strategic direction and growth of the indirect sales channel for HVAC & Industrial Refrigeration across Europe. Define and implement sales strategies, optimize the channel model, and drive transformation initiatives.

Lead and manage all aspects of a hotel's operations, including financial performance, guest satisfaction, and team development. Drive revenue management, budgeting, and cost control strategies. Collaborate with headquarters and stakeholders.

Experienced offshore wind professional to lead Transport & Installation (T&I), logistics, and supply chain activities across major renewable energy projects. Responsibilities include leading RFQs, managing supplier negotiations, and coordinating interfaces between project teams and various stakeholders.

Mechanical Maintenance Technician needed for troubleshooting, repair, and preventive maintenance of production equipment, conveyors, and automated systems.

Senior Project Manager to lead complex electronic security projects in Germany. Manage access control and CCTV projects from pre-sales through handover and aftercare. Requires 10+ years in the electronic security industry with 5+ years in leadership roles.

Experienced Project Manager needed for data migration and integration within a banking environment. Focus on end-to-end project delivery, data migration execution, and integration of legacy systems into modern data structures. Requires strong expertise in data warehousing, legacy system integration, and banking data transformation. German language skills (C1) are mandatory.

Lead Rust developer for a high-performance, open-source electricity grid model validation and visualization tool. Responsibilities include leading development, designing architecture, ensuring performance and reliability, mentoring developers, and collaborating with stakeholders. Requires 7+ years software engineering experience, 4+ years commercial Rust development, and experience as a technical lead.

This role is a hands-on, business-facing HR leadership position supporting manufacturing scale-up, cross-border operations, and M&A activities across Europe. The HR Manager will partner with Europe leadership, ensuring alignment between global HR frameworks and local execution.

Specialist Product Engineering role focused on technical documentation, product modifications, and collaboration with development, production, and sales. Requires technical training, experience in documentation, and proficiency in German and English.

Project Control Engineer needed for a hydrogen infrastructure project near Düsseldorf. Manage project planning, scheduling, cost control, and performance reporting. Fluency in English and German required. Minimum 3 years of experience in project control in industrial or infrastructure projects. Proficiency in Primavera P6, MS Project, Excel, and ERP systems.

Leads Electrical, Instrumentation & Control (E,I&C) discipline for large-scale industrial projects. Builds, develops, and manages a high-performing E,I&C engineering team. Ensures compliance with relevant regulations and standards.

Junior Economist will analyze and model German housing markets, focusing on resale, rental, and new build dynamics. Responsibilities include producing market indicators, performing statistical and econometric analyses, and translating insights into actionable content and tools.