java English-speaking jobs in Mainz

Experienced Senior Planner needed for a major Data Centre project in Germany. Responsibilities include developing schedules in Primavera P6, coordinating MEP and construction activities, and monitoring site progress. Requires strong P6 and Data Centre planning background.

Technical Team Lead to lead and develop a small team of backend and AI engineers. Own architectural decisions for scalable Python systems, APIs, and AI orchestration. Requires experience leading at least three engineers with strong Python/Node.js and distributed systems knowledge.

Creative Graphic Designer supporting the German pharmaceutical market. Develop digital and print assets, including websites, banners, and brochures, adhering to brand guidelines. Requires 3-5 years of design experience and proficiency in the Adobe suite.

Mechanical or Electrical Project Manager to lead data center construction projects from design through commissioning. Responsibilities include managing project budgets, schedules, and technical performance, overseeing MEP design coordination, and ensuring compliance with quality, safety, and environmental standards. Requires a degree in Mechanical or Electrical Engineering and proven experience delivering MEP packages on large-scale construction projects. Fluency in German is preferred.

Provide expert, compliant mortgage advice and deliver an excellent client experience. This role combines advisory expertise, sales capability, pipeline management, and accurate case administration. Requires experience in mortgage advising and strong knowledge of products.

Principal Enterprise Architect role leading end-to-end architecture for large transformations. Own target state, govern decisions, and drive business value. Requires deep TOGAF knowledge and strategic grasp of AI. Native/business-fluent German plus fluent English.

Experienced Global Compliance Investigator needed to lead internal investigations into policy and law breaches for a global life sciences organization. Requires a Law degree and five years leading investigations in an international setting. Fluency in English and German is required.

Fleet Manager Europe supports the development of European fleet management. Responsibilities include optimizing vehicle specs, procurement coordination, asset management, and driving fleet digitalization. Requires fluency in Polish, Chinese, and English.

Senior Procurement Manager for a fast-growing start-up in solar, energy storage, and data centers. Manage CAPEX tenders, EPC companies, and suppliers across Germany. Requires technical background in renewables and experience with onshore projects.

Develop cutting-edge AI solutions focusing on NLP and LLMs, alongside computer vision. Responsibilities include data preparation, Python backend development, and collaboration within an agile team. A Master's degree in a relevant field is required.

Experienced CMC Quality Expert needed to guide drug development from pre-clinical to commercialization. Responsibilities include authoring regulatory submissions (IND/NDA/MAA) and providing CMC guidance across small molecules, biologics, and advanced products. Requires a PhD or Master's and 5+ years in CMC roles.

Principal Rewards Consultant to design and deliver compensation solutions, champion pay transparency, and advise on compliance with EU directives. Requires deep Total Rewards expertise, stakeholder engagement, and German/English proficiency.

Simulation & Avionics Systems Engineer needed for spacecraft modeling and verification. Responsibilities include deriving simulation models, testing components, and developing simulation environments. Requires a Master's in Aerospace Engineering and 5+ years in the space/aerospace industry.

Analyze human-development systems (education, work, care, access) to map how they enable or suppress potential. Quantify the cost of systemic change to prepare research for €2–10M funder contracts.

Senior Legal Counsel needed for construction and contract law. Provide legal guidance on complex construction projects, drafting, and negotiating contracts in an international setting. Requires 7+ years in public/private construction law.

Experienced Head of Talent Acquisition Europe needed with fluent Mandarin skills. This role involves building and scaling the TA function across Europe, leading teams, and developing recruitment strategies.

Senior Specialist in C&B supports compensation design, governance, and annual cycles. Drives C&B harmonization post-merger, conducts benchmarking, and ensures compliance with local and EU labor laws.

Assistant Manager, Procurement Consulting, leads procurement transformation and value creation engagements. Responsibilities include analyzing supply chains, developing cost-reduction recommendations, and managing project workstreams. Requires strong analytical skills and fluency in German and English.

As Chief of Staff, you will build Infinite Orbits Germany from the ground up, partnering with the Managing Director. Responsibilities include corporate setup, government relations, and cross-border coordination. Requires 3+ years in a relevant leadership role.

Senior AI Architect needed for enterprise-scale AI solution design and delivery. Requires 7+ years experience, 3+ in AI architecture, expertise in ML frameworks (TensorFlow, PyTorch), and cloud deployment (AWS, Azure, GCP). Must be based in Germany.