java English-speaking jobs in Mainz

Bike Mechanic responsible for the complete repair and refurbishment of various e-bikes. Duties include inspection, troubleshooting, parts selection, and quality control in a fully equipped workshop. Requires 1–2 years of experience and fluency in English.

Shape a new Robotics Lab from the ground up, defining research in Robot Learning and dexterous manipulation. Turn frontier research into working prototypes on real robotic systems.

Senior Finance Manager for an industrial manufacturing group. This role combines operational finance, project controlling, and legal entity financial management. Responsibilities include project costing, profitability analysis, and financial reporting under US GAAP and German standards.

Detail-oriented Generalist Experts are needed for remote AI training and evaluation projects. Review and assess professional work products like documents and spreadsheets, applying strong judgment to improve AI output quality.

ASIC Development Engineer for Digital IC Design. Lead digital design and ATPG activities, ensuring robust implementations. Responsibilities include technical leadership, ATPG flow management, and developing automation solutions using Python, Tcl, or shell.

Seeking an entrepreneurial License Owner to launch and grow Stranger Soccer in Hamburg. Responsibilities include team management, securing venues, driving growth, and overseeing game operations. Passion for football and local community connections are key.

Established global supply chain services firm seeks Europe Business Leader with full P&L responsibility. This executive will drive growth, set go-to-market strategy, and lead the European organization. Requires significant technology services and general management experience at scale.

Product Owner for Marketing Measurement. Act as a product IC in the Attribution team, framing problems and options. Requires 5+ years in product/marketing analytics with fluency in attribution concepts.

Chief Product Officer to lead product teams, driving innovation strategy and bringing new products to market. Oversee R&D, Science & Regulatory, and Product Development functions. Requires 15+ years in product, with 5+ years leading in supplements or CPG.

Junior Engineer to develop and maintain backend services and APIs supporting index construction workflows. Requires a degree in CS or related field and basic knowledge of Java, Python, or TypeScript.

Analyzes and processes requests for changes in force structure, personnel, and equipment. Manages force structure actions, coordinates equipment fielding, and conducts manpower planning. Requires B2 English and German proficiency.

Senior/Staff IT Operations Specialist supports holding employees across tech support, projects, and consulting. Requires 10+ years in IT systems, knowledge of Google Workspace, Office 365, and AI tooling.

Act as a CHRO for departments, focusing on engagement, performance, and organizational development. Lead talent strategy and drive company-wide changes using a data-driven approach. Requires 5+ years in strategic HR or consulting.

Support CEO and CTO in daily operations, coordination, and research for a fast-moving aerospace company. Tasks include strategic initiative tracking, preparing materials, and cross-functional project execution. Requires a relevant degree and strong execution skills.

Lead and develop the digital engineering organization for R&D, driving delivery of digital products and platforms. Shape a flexible, AI-enabled, and metric-driven engineering setup. Requires proven leadership in software engineering and organizational change.

Enterprise Account Executive DACH owns the end-to-end sales cycle in the DACH region. This role requires 3+ years of B2B SaaS enterprise sales experience, exceeding $1M+ quotas, and fluency in German and English.

Lead .NET Developer will architect and implement a secure, cloud-native asset monitoring platform for distributed fiber optic sensing systems.

Develop and maintain Java-based applications and web components, while building and supporting Python services for AI/LLM integration. Requires Java, Eclipse, web technologies, and experience with CI/CD and Git.

Leads R&D of fully automatic coffee machines, overseeing product development and resolving technical issues. Researches and develops new technologies and platforms for coffee machines.

Kapadi is a full service CRO that focuses on complex oncology indications including immunotherapy and cellular therapies. We know that innovative research requires innovative operations and we've built that into our culture, systems and processes. We have an infrastructure to enhance access to patients and integrated technology to provide higher quality and faster access to results.