18 germany English-speaking jobs in Mainz

Conti Federal Services is a leading global construction and engineering company that has delivered some of the most demanding projects for the U. S. federal government. With roots dating back more than 115 years, Conti Federal specializes in military construction, critical infrastructure, secure construction, environmental remediation, and disaster response and recovery.

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

The Department of Experimental Physics I (Physics of living matter) at the University of Bayreuth, Germany

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

spoken English skills This awaits you Attractive fixed salary, €50 monthly tax-free bonus, and €49 Germany

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.

The position offers a flexible mobile working model across Germany.

Designs, builds, and deploys production-ready AI solutions, integrating AI into business systems and optimizing performance. Collaborates with clients to understand processes, identify automation opportunities, and drive AI-led change. Builds AI prototypes, demonstrates capabilities to prospects, and assesses client AI readiness. Requires 2+ years of AI/ML implementation experience, strong Python skills, and a portfolio of deployed AI systems. Fluent English required.

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.

Outside Sales Executive for Hästens, a global luxury sleep brand. Focus on strategic hunting, identifying and closing high-value accounts independently. Requires proven sales track record, mobility, and stamina. 80% field presence, uncapped commissions, and zero micro-management.

University Assistant Predoctoral position in Environmental Geochemistry of Mineral-Associated Organic Matter. Research will focus on the molecular interactions between mineral surfaces and organic molecules. Responsibilities include research, teaching, and administrative tasks.

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.

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.

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.

Leads the 'AI Operator & Tooling Strategy' for N26 Marketing, integrating AI tools and automation to accelerate marketing workflows and enhance creative output. Develops automated reporting frameworks to track team performance and optimizes project management systems. Builds and launches AI-driven initiatives, scales AI projects, and acts as the primary advocate for AI within Growth.