16 germany English-speaking jobs in Mainz

Location: Germany, Romania or Bulgaria We have a holistic view of the individual needs of our employees

KGaA is headquartered in Mainz, Germany and listed on the Frankfurt Stock Exchange as part of the MDAX

KGaA is headquartered in Mainz, Germany and listed on the Frankfurt Stock Exchange as part of the SDAX

KGaA is headquartered in Mainz, Germany and listed on the Frankfurt Stock Exchange as part of the SDAX

Senior Engineer for Optical Design will develop software tools for optical design and analysis. Prototype waveguide and component concepts, design DOEs, and analyze experiments. Requires MS in Optical Engineering or related field, strong Python programming skills, and proficiency with optical simulation tools. Experience with Monte Carlo tolerancing, sensitivity studies, and optical component manufacturing is preferred.

Develop customized, scalable Freestyle SAPUI5 applications based on SAPUI5, OData, JavaScript, and ABAP. Actively help shape system architecture and take responsibility for company-wide applications. Serve as a technical sparring partner for business units and development colleagues. Drive code reviews, performance optimizations, and set technical standards. Coach and mentor junior colleagues.

The position offers a flexible mobile working model across Germany.

Senior Engineer Optical Coating - Augmented Reality will design, simulate, and optimize optical coatings for AR waveguides. The role involves collaborating with optical designers, leading development projects, and supporting production scale-up. Requires 7+ years of experience in thin film optical coating development and proficiency with coating design and simulation tools.

This is a field-based sales role requiring a proven track record of exceeding quotas. You will identify, qualify, and close high-value accounts independently, managing your own pipeline and demonstrating fluency in English and at least one European language.

EIT Water seeks its inaugural Chief Executive Officer to lead the organization through its start-up phase and long-term growth. The CEO will be responsible for strategic leadership, operational excellence, financial sustainability, and stakeholder engagement, ensuring measurable impact aligned with the European Institute of Innovation and Technology (EIT) and EU policy objectives.

EIT Water seeks a Chair and eight Supervisory Board Members to oversee strategic direction, approve Business Plans, and appoint leadership. Board members contribute strategic oversight, sector expertise, and governance experience.

As a University assistant prae doc, you will participate in research, teaching, and administration within the Soft Matter Experiments (SoMeX) Lab. You will contribute to ongoing research projects in soft matter physics, biophysics, and active matter, focusing on topics such as rheology, collective behavior of cells, microscopy, and differential dynamic microscopy. You will also hold courses, support students, and contribute to administrative tasks.

PhD position in Inorganic & Materials Chemistry. Requires a Master's degree in Chemistry, Materials Science, or related field with a strong background in inorganic or materials chemistry. Experience in materials synthesis and characterization is essential. Fluency in English is required.

Senior Legal Officer providing legal advice and support to internal teams on business operations. Reviews, drafts, and negotiates contracts and legal documents. Monitors regulatory changes and identifies legal risks. Requires fluency in English, Russian, and experience with multiple legal jurisdictions.

Provides technical expertise and solutions to Aerospace & Defense customers. Analyzes specifications, recommends product configurations, and supports implementation planning. Collaborates with sales, engineering, and product development teams.

Senior Backend Engineer will design, develop, test, deploy, and maintain software using a JVM language and Spring Boot in large-scale production systems. Experience with microservice architecture, relational and non-relational databases, and AWS is required.