developer English-speaking jobs in Mainz

As a Mystery Guest, you'll experience a hotel stay, observing service quality and staff professionalism. You'll discreetly assess check-in, bar service, dining, room service, and public spaces. Capture photos and submit a detailed report with receipts for reimbursement.

This part-time position involves loading, unloading, shipping, receiving, scanning, sorting, and stocking packages. May utilize heavy machinery. Requires ability to lift up to 70 lbs., read and memorize postal codes, and work flexible hours. Warehouse experience is preferred.

Senior Hardware Engineer to develop automotive ECU electronics. Responsibilities include circuit design, PCB layout, and HW validation. Requires expertise in schematic design, PCB layout, and HW testing equipment. Strong communication and technical skills are essential.

Solution Architect for clinical software solutions combines technical expertise with understanding of clinical and administrative processes. Develops customer-specific solution concepts, analyzes requirements, and collaborates with engineering, product, and project management. Requires a computer science degree, strong understanding of APIs, interfaces, and system architecture, and knowledge of IT and infrastructure concepts. German fluency is required.

Electrical Test Laboratory Engineer will define test methodologies, plan and execute electrical validation tests, and analyze test results.

The CFO will oversee finance, controlling, HR, legal, and IT functions for national and international locations. Responsibilities include corporate financing, financial statement preparation, liquidity planning, budgeting, forecasting, and M&A deals. The CFO will also analyze and optimize process workflows and liaise with banks, auditors, tax advisors, and shareholders.

Manage and grow customer relationships in the Automotive Fluids Independent Aftermarket, focusing on coolant/antifreeze and brake fluid products. Negotiate contracts and steer technical and commercial projects with customers and internal teams. Acquire new customers and business opportunities, driving cross-selling and price management initiatives.

Medical Sales Representative needed for a fast-growing company. Achieve sales targets in oncology, hematology, rare diseases, and hospital settings. Requires 5 years of pharmaceutical sales experience and fluency in German and English.

Manage and execute SAP RISE migration, leading internal and external project teams. Develop and steer technical migration strategy, ensuring adherence to timelines, budget, quality, and security standards.

Student assistant will refine and optimize calibration models, algorithms, and targets for 3D scanning technologies. The role involves working with experimental setups, capturing calibration datasets, and integrating the calibration pipeline across different scanning systems.

Experienced Office Manager needed to oversee daily operations, manage administrative processes, and support accounting activities. Strong organizational, interpersonal, and communication skills required.

Quantitative Risk Analyst will develop, maintain, and enhance quantitative risk and pricing models for market, credit, and liquidity risk. Responsibilities include designing and running Monte Carlo and scenario simulations, implementing models in Python, and collaborating with Trading, Risk, Finance, and Tech teams.

Architect and build the data platform backbone, focusing on distributed computing stability and caching strategies. Design ETL pipelines and establish data lineage and metadata modeling infrastructure.

Nordson seeks a part-time Payroll Accountant to process European payroll, manage wage accounts, and ensure compliance with legal and fiscal requirements.

Operate, maintain, and repair rail grinding, milling, and planing machines. Install and assemble equipment on railway tracks across Europe.

Develop and implement strategic plans for photovoltaic power plant investments in Europe. Oversee asset management, team leadership, and stakeholder relationships. Identify new business opportunities and ensure regulatory compliance.

HR Controlling & Reporting Specialist will develop and maintain HR metrics, conduct cost and FTE planning, prepare reports, and support HR projects. Requires 3+ years of HR Controlling experience, strong analytical skills, and proficiency in MS Excel.

Lead and manage an engineering team focused on reliable delivery of aerospace testing solutions. Develop team members, optimize workflows, and manage stakeholders.

Account Manager for Large Customer Sales, Amazon Ads, focusing on FMCG. Manages and delivers against complex advertiser goals, driving revenue and achieving targets. Develops media strategies, analyzes data, and educates advertisers on performance metrics. Collaborates with internal and external stakeholders to achieve business objectives. Requires experience in client-facing roles, digital marketing, and analytics. Fluency in German and English is essential.

As a BI Specialist / Reporting & Dashboard Administrator, you will develop, maintain, and enhance BI dashboards and reports in Power BI. You will translate operational and business requirements into standardized reports and KPIs, ensuring data accuracy and transparency. You will collaborate with operational teams, providing support and troubleshooting for report usage.