java English-speaking jobs in Mainz

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

Senior TypeScript Developer (3+ years experience) to design, develop, and maintain scalable applications for an AI-driven financial services company. Build and enhance frontend and backend services, APIs, microservices, and event-driven systems. Collaborate with AI engineers, product teams, and stakeholders.

Experienced Associate Mechanical Engineer needed for data center and mission critical projects in Frankfurt. Design, coordinate, and review mechanical building services systems, ensuring compliance with German regulations and international standards. Lead multidisciplinary design coordination and provide technical mentorship.

Provides technical support for end users across multiple locations, resolving software, hardware, and application-related issues. Troubleshoots complex incidents involving business-critical systems and connected devices. Supports specialized healthcare applications and ensures stable day-to-day operations.

Support administrative operations and recruitment activities for a regional team. Provide administrative support, maintain personnel records, coordinate meetings and onboarding processes. Assist with candidate sourcing, CV screenings, and interview scheduling.

Product Manager to drive strategy, launches, and lifecycle management for video surveillance, IP Audio, and logistics technology. Manage pricing, product positioning, and competitive market entry plans. Lead product launches and act as the product expert for the DACH region.

Experienced Senior Planner needed for large-scale Battery Energy Storage System (BESS) projects. Requires proven experience in planning and scheduling for energy, renewable energy, utility, or infrastructure projects, with a strong background in BESS, battery storage, substations, grid connection, transmission, or distribution. Advanced proficiency in Primavera P6 and/or Microsoft Project is essential. Fluent German and English communication skills are required.

Leads the global Science Expert function, defining scientific strategy, managing subject matter experts, and ensuring alignment with organizational goals.

Experienced Freelance Site Manager needed for a 550MW solar project in Brandenburg, Germany. Manage on-site construction, contractors, and ensure HSE standards are met.

Experienced Analog Design Engineer to design, implement, and verify Analog/mixed-signal ICs for sensor products. Requires Masters degree with 4+ years or PhD with 2+ years experience, strong Analog/Mixed-Signal knowledge, Matlab proficiency, and experience with design for test.

Senior Manager for a global healthcare organization's Computational Innovation PMO. Translates strategic priorities into execution, communication, and follow-through across scientific, operational, and leadership interfaces. Requires a PhD, MD, or equivalent in life sciences, strategy consulting experience, and strong communication skills.

Senior Optical/Laser Development Engineer will design, build, and test laser systems for trapped-ion quantum computers. Collaborate with physicists, electronics, and software teams to integrate modulation control and single-photon processing.

International law firm seeks qualified lawyers with strong academic credentials and experience or interest in antitrust, competition, and merger control law.

Senior Quantity Surveyor to oversee commercial aspects of major data center projects. Manages budgets, prepares reports, and works with teams to ensure successful project delivery. Requires 3-5 years' experience at PQS level or above.

Product Line Manager responsible for strategic and operational success across the product lifecycle. Drive product development, manage milestones and costs, and ensure timely delivery of prototypes and production-ready solutions. Lead requirements specification, product line continuity, and manufacturability initiatives.

Experienced Project Manager to lead end-to-end robotics deployments for German-speaking clients. Manage 4-5 concurrent projects, from pre-sales validation to post-go-live support. 5+ years project management and intralogistics/robotics industry experience required. Fluent German or C1 equivalent.

Senior Quantity Surveyor to lead cost control, subcontract management, and commercial reporting on large-scale data center projects in Frankfurt. Proven experience in major construction projects and data center environments required.

Experienced Associate Director of Regulatory Affairs needed to lead global regulatory strategy for development and marketed products. Focus on EU expertise, including MAA submissions, ODD applications, and interactions with the EMA. Strong global regulatory experience outside Europe required.

Senior Product Manager will design, develop, and manage activities for BaFin reporting products. Responsibilities include defining product roadmaps, collaborating with stakeholders, and driving product adoption. Requires a Bachelor's degree in a relevant field, 5+ years of product management experience, and knowledge of EMEA regulatory reporting.

Support H135/H145 Value Stream Management in producing over 100 helicopters annually. Map value streams, secure stakeholder alignment, and prepare industrialization schedules. Analyze production data, monitor progress, and propose continuous improvement initiatives.