10 English-speaking jobs in Mainz

As a Sales Specialist – Battery Trading, you will source high-quality, second-life-ready batteries from scrap yards, workshops, and other non-traditional sources. You will negotiate contracts, perform on-site assessments, and build a supplier intelligence database. You will also onboard vehicle repair workshops as buyers for these batteries.

Processes customer orders, returns, and account inquiries via email, phone, and web chat. Provides quotations for standard optics and manages open sales orders. Requires experience in customer service, proficiency in MS Office, and fluency in English. Additional language skills are beneficial.

Supports the operation and development of server and network infrastructure. Manages virtualization, application delivery, security infrastructure, and Microsoft 365 cloud. Provides IT client environment support and assists with line-of-business applications.

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.

J&T Express seeks experienced Operations Supervisors to lead and develop teams in Frankfurt, Düsseldorf, Hamburg, and Berlin. Responsibilities include overseeing daily sorting center operations, monitoring KPIs, driving continuous improvement, and ensuring compliance.

Designs, builds, and deploys production-ready AI solutions, integrating AI into business systems and optimizing performance. Experience with LLMs, generative AI, and AI agent development is required. Strong Python, data engineering, and cloud infrastructure knowledge is essential. Proven ability to ship AI systems to production and collaborate with stakeholders to define success metrics and drive business outcomes.

Senior DFT and Post-Silicon Lead will own the DFT implementation process, ensuring seamless integration with test and post-silicon validation teams.

Continuous Integration & Verification Infrastructure Engineer to set up CI flow, automate regression test infrastructure, and optimize resource utilization. Requires scripting experience (Python, Bash), Git, CI tools, and Linux environments.

Experienced barbers sought for full-time, permanent positions in Nordic partner salons. Offer includes competitive salaries starting at 3,000 EUR per month gross, flight ticket coverage, and relocation support. Responsibilities include hair and beard cuts, client service, product sales, and salon upkeep. Minimum 1 year of experience or certification required, intermediate English proficiency, and a European passport.

Senior Legal Officer needed for a client of TechBiz Global. Responsibilities include ensuring legal compliance, providing legal advice, drafting contracts, and managing legal risks. Requires a law degree, 5+ years of experience in a relevant field, fluency in English, and Russian language skills are advantageous.