java English-speaking jobs in Mainz

Internship in Global Category Passives supporting purchasing projects and the sourcing process. Responsibilities include supplier communication, data management, and analysis. Requires studies in business, engineering, or economics and fluent Business English.

Support primary fundraising mandates for private equity clients across the DACH market. This role involves coordinating investor due diligence, managing client interactions, and supporting business development initiatives.

Technical Account Manager dedicated to client technical success for Premier and Key clients. Proactively manage Pega service stability, drive scalability, and improve processes. Requires 5+ years in enterprise IT and fluency in English plus German or Swedish.

Drive online revenue growth for the EU Ecommerce team by owning paid channels end-to-end. Manage Paid Search, Social, Affiliates, Influencer, CRM, and TV campaigns, optimizing for ROAS and CPA. Requires 3+ years in B2C Ecommerce with strong analytical skills and fluency in English and German.

Director of Business Consulting Manufacturing brings deep expertise to help clients turn AI opportunities into operational value. Focus on digital twins, predictive maintenance, OEE improvement, and AI-enabled operations. Requires 10+ years in manufacturing transformation.

The Customer Program Manager leads strategic customer programs in Europe, serving as a key interface between customers and internal cross-functional teams. This role drives program governance, manages risks, and ensures alignment across global organizations.

Systems Engineer to support critical business operations across Windows, Linux, virtualization, and cloud environments. Responsibilities include administering servers, managing VMware/Hyper-V, and supporting AWS, Azure, or Google Cloud workloads. Requires 3+ years of relevant experience.

Process Engineer for Dry and Wet Etching in semiconductor manufacturing. Responsibilities include ensuring process stability, driving improvements, investigating deviations, and supporting new technology implementation. Requires a relevant technical degree.

As a Digital Engineering Consultant, you will optimize engineering across the product lifecycle for global clients using digital twins and AI. You will design and implement digital transformation strategies for R&D and manufacturing.

Drive project coordination across Customer Success, owning projects from planning to execution. This role requires significant project management experience, proficiency with reporting, and experience with CS platforms.

Principal Scientist Pharmacology guides preclinical and early clinical research, overseeing translational and clinical pharmacology strategy. Requires advanced degree and 5+ years in drug development, with expertise in PopPK/PBPK modeling.

Expert Quantity Surveyor (M&E) supports Subcontracting Management across the project lifecycle. Responsibilities include estimating costs from drawings and preparing BoQs using digital tools. Requires a degree in Quantity Surveying and five years of relevant experience.

Senior Technical Project Manager for Aerospace Composites. Own the full lifecycle of COPV development, from concept to serial production. Requires 5+ years in technical project management and a degree in a relevant engineering field.

Lead end-to-end development of advanced liquid cooling systems from concept to production. This role requires expertise in fluid mechanics, heat transfer, and system design, partnering with customers to solve complex thermal challenges.

Senior Cloud Software Engineer with 7+ years experience in Java or Golang development. Designs, implements, and supports distributed cloud services. Proficient in DevOps, CI/CD, and cloud technologies (Azure, AWS, Kubernetes). Strong communication and collaboration skills.

Join HIMA Group – Innovate with purpose. Grow with technology. HIMA Group is a globally independent provider of safety-related automation solutions for the process and rail industries, protecting people, assets, and the environment.

Design and support qualitative and quantitative research projects, analyzing market and customer data to deliver actionable business insights. Collaborate with international teams to develop research standards across the Group.

Drive new business growth for Mirakl Connect in the DACH SMB segment. Own the full sales cycle, acting as a subject matter expert on Channel Management. Requires 3+ years in closing sales and full professional proficiency in English and German.

Strategic Key Account Manager to lead biosimilar product innovations in NRW. Responsibilities include developing regional sales strategy, building key stakeholder relationships, and driving market access. Requires a Life Sciences degree and proficiency in German and English.

Assistant Store Manager supports the store manager to meet financial targets and ensure operational excellence. Responsibilities include team coaching, driving service excellence, and managing daily store operations. Requires 2+ years in retail management.