java English-speaking jobs in Mainz

Seeking a PhD Student in NLP to investigate hallucinations in neural language generation models. Focus includes curriculum learning and learning from feedback. Requires a Master's in a relevant field and excellent programming skills.

Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the world's leading job platform.

Seeking an Assistant Store Manager with 2+ years of retail management experience. Responsibilities include meeting financial targets, leading the team, ensuring operational excellence, and supporting the Store Manager. Must be fluent in English with good German.

Design Manager to coordinate design delivery for a large data center construction project. Responsibilities include managing the design programme, coordinating consultants, and overseeing design reviews and buildability. Requires a relevant engineering degree and 7+ years in design coordination.

M&A Analyst supporting acquisition and divestment projects. Responsibilities include target identification, financial modeling, investment case preparation, and managing due diligence. Requires a Master's degree, 1-3 years of M&A experience, and native German/proficient English.

Senior Software Engineer for Data Core. Implement features and fix bugs in Java/Spring Boot services, SQL translation (sqlglot), and StarRocks. Requires strong SQL skills and familiarity with distributed data systems.

Account Executive to drive sales activities for SaaS offerings in the DACH region. Requires 3+ years of closing experience in a SaaS Mid-Market environment, proficiency in German (C1+) and English, and a proven track record of hitting revenue targets.

Project Consultant supports client programs in public affairs and corporate communications. Responsibilities include research, content development, and stakeholder engagement. Requires a degree in a related field and proficiency in German and English.

Field Engineer for a chemical plant supporting an advanced processing facility scale-up. Responsibilities include field rounds, equipment inspection, and supporting plant start-up and shutdown activities. Requires hands-on operations experience.

Develop radar remote sensing methods to monitor mining-induced deformation and landslide hazards. Responsibilities include processing multi-temporal SAR data and applying InSAR time-series analysis. Requires a Master's in a related field and experience with SAR data.

Seeking an inspiring, commercially minded General Manager to lead Hyatt Regency Cologne. Requires proven success in international full-service or upper-upscale hotel leadership, strong financial acumen, and experience with ownership.

Head of Business Process Excellence drives end-to-end BPM, establishing frameworks and governance. This role develops process strategies, leverages process mining, and advances AI-enabled transformations across the enterprise.

Bauschreiner/in required to plan, fabricate, and install structural components, framing, and finishes. Duties include utility fabrication, door/window installation, and providing technical guidance. Requires vocational training or 5+ years experience and German driver's license B.

Go To Market Lead for SMB PGN. Develop and execute regional marketing strategy, launching products to customers. Requires 5+ years in marketing/sales support, fluent German and English.

Build the agentic layer for GTM efforts, creating workflows to automate marketing tasks and improve demand generation. Design data connections and campaign intelligence to measure commercial impact.

Data Scientist role requires 5-7 years in a customer-facing capacity, specializing in AML or fraud detection. Responsibilities include tuning models against live transaction data and presenting technical findings to clients.

Functional Consultant implements Vistex solutions within SAP environments. Responsibilities include blueprinting, configuration, and supporting the end-to-end implementation lifecycle for SAP SD and MM. Requires 3-5 years of SAP Functional Consulting experience.

Technical Delegate executes on-site and remote missions to resolve complex vehicle technical incidents and accelerate repair lead times. This role diagnoses electrical/electronic faults using OEM tools and supports service networks.

Internship focused on developing embedded software configuration GUIs. Responsibilities include building features, creating visualizations, and connecting GUI apps to underlying code using Python and supporting C modules.

Systems Engineer to ensure performance of electronic command and control and sensor systems for defense applications. Responsibilities include system concept development, requirements specification, integration, and testing. Requires technical studies and proficiency in English and German.