java English-speaking jobs in Mainz

SMEY seeks an experienced industrial biotechnology professional to lead the industrialization and scale-up of products through external manufacturing partners. Responsibilities include developing manufacturing strategy, identifying and qualifying partners, leading technology transfer, and negotiating manufacturing terms.

Independent art-social video project seeks families (parents with children, multi-generational) in Berlin for a documentary-style film. The project focuses on the beauty of the present moment and authentic family relationships.

Software Development Manager to lead a team and own the technical architecture of AI-powered software products. Experience in AI system design, LLM integration, and scalable software architecture required.

Provide strategic oversight and guidance on emerging technology trends and opportunities. Support executive teams in decision-making processes and evaluate technological growth strategies.

Experienced Interim CFO needed for €180m revenue e-commerce business. Lead finance function, drive performance optimization, and support strategic initiatives. Strong PE-backed business experience and e-commerce expertise required.

Founding Product Engineer / CTO to build and lead the technical foundation of a new AI-powered financial assistant for people under financial stress. Architect and build the mobile product (React Native, TypeScript, Tailwind), define backend architecture, and design infrastructure for secure financial data handling. Work with the CEO to turn complex financial data into intuitive user experiences.

Digitalization & Design Integration Engineer – Cabin & Cargo VR will lead and execute XR activities for Next Generation Aircraft. Responsibilities include managing deliverables from concept to integration, utilizing 3D data and XR software, and creating immersive scenes and visualizations.

NIO is seeking an IP Counsel to identify, manage, and protect designs, trademarks, and inventions. Responsibilities include conducting searches, filing applications, and advising on IP matters. The ideal candidate has a law degree, 3+ years of IP experience, and strong communication skills.

This 12-month rotation program provides a versatile insight into various departments of BASF Services Europe GmbH. Trainees develop a personal development plan, work on projects, and gain experience at another BASF Group company.

Circle Health seeks a COO to lead operational growth for this Berlin-based, venture-backed consumer health company. Responsibilities include end-to-end patient experience, multi-site operations, financial performance, and people infrastructure. The COO will build systems and teams to support expansion while maintaining high clinical standards.

This 12-month rotation program provides a versatile insight into various departments of BASF Services Europe GmbH. Trainees develop a personal plan, gain experience in different subject areas, and contribute to projects. The program includes an assignment at another BASF Group company.

Fully funded 4-year postdoctoral position in cognitive and computational neuroscience. Investigate the cross-domain functions of the perirhinal cortex in a project with Prof. Patric Meyer and Dr. Andrej Bicanski. Position requires a PhD in a relevant field, strong interest in the medial temporal lobe, and experience with multivariate fMRI analysis and computational modeling.

Executes physical OTC settlement activities across multiple products and trading regions. Ensures timely and accurate verification of trade details, pricing, and settlement data. Serves as a subject-matter expert, providing guidance, resolving issues, and identifying process enhancements.

Head of Controlling will oversee financial operations in Germany, focusing on planning, analysis, and business partnering. The role involves driving Lean finance practices, supporting Microsoft Dynamics rollout, and leading a team of 3.

Own the end-to-end development program for robotics platform(s) from concept to production readiness. Drive delivery across AI, software, hardware, and robotics systems through a structured stage-gated product development process.

Experienced HSE Manager needed to lead health, safety, and environmental performance at a manufacturing site in Mannheim. Translate group HSE strategy into site-level actions, ensure compliance with German legislation, and drive continuous improvement.

Program Manager to lead maintenance and infrastructure projects across a region, ensuring timely delivery and high-quality standards. Collaborate with cross-functional teams to optimize existing sites and drive operational efficiency. Develop business cases and strategic documents for senior leadership approval.

Leads complex AI and data-driven engagements, ensuring alignment with client needs and business goals. Provides strategic direction and problem-solving to project teams, driving client satisfaction. Manages and mentors a team of Engagement Managers.

Lead and evolve product strategy through AI, innovation, and streamlined collaboration. Collaborate with engineering and customer-facing teams to meet market demands and customer needs. Build, lead, and inspire product teams, fostering a culture of innovation and excellence. Proven track record in creating and implementing product roadmaps, driving product innovation and growth. Experience as a Chief Product Officer within digital marketplaces or relevant industries.

Leads strategic vision, operations, and market expansion for a global cryptocurrency exchange. Guides the company through evolving market dynamics and regulations. Builds trusted relationships with partners, stakeholders, and regulators. Drives financial strength, risk management, and fundraising efforts. Requires proven CEO or senior management experience in fintech, finance, or technology with cryptocurrency or blockchain experience.